Modeling and Parameter Identification of a DC Motor Using Constraint Optimization Technique

Size: px
Start display at page:

Download "Modeling and Parameter Identification of a DC Motor Using Constraint Optimization Technique"

Transcription

1 IOSR Journal of Mechanical and Civil Engineering (IOSR-JMCE) e-issn: ,p-ISSN: X, Volue 3, Issue 6 Ver. II (Nov. - Dec. 206), PP Modeling and Paraeter Identification of a DC Motor Using Constraint Optiization Technique Surajudeen Adewusi (Mechanical Engineering Departent, Jubail University College, Royal Coission for Jubail and Yanbu, P. O. Box 0074, Jubail Industrial City 396, Saudi Arabia). Abstract: This paper presents atheatical odeling and siulation, and experiental study of an electroechanical syste (a direct current otor) to identify the echanical and electrical paraeters (ass oent of inertia, daping, arature resistance and otor constant) of the otor and its accessories. Laboratory experients were perfored to obtain the step responses of the otor. The paraeters were identified in two stages viz: ) deterination of the tie constant and gain of the first order transfer function of the otor s odel using MATLAB Paraeter Identification Toolbox. 2) MATLAB codes were written to invoke MATLAB Constraint Optiization Toolbox and iniize the root ean squared error between the experiental and siulated step responses using the relationships between the otor paraeters and the tie constant and gain as constraint equations. The coparisons between the experiental and siulated step responses showed excellent agreeent. The echanical and electrical paraeters of the otor were found to be the following: ass oent of inertia = 9.85 x 0-3 kg 2, arature resistance = 6.29 Ohs, daping = 2.52 x 0-3 Ns/rad, and otor constant =.57 x 0-2 N/Ap. Keywords: dc otor odel, constraint optiization, paraeter identification, tie constant, step response. Noenclature DC Direct current ν(t) The otor's input voltage (Volts). R The otor's arature resistance (Ohs). L The arature's inductance (Henry) i The arature's current (Ap) k DC otor constant (N/Ap.) v b The otor's back electrootive force (ef) (Volts). τ Motor s supplied torque (N) T Tie constant (seconds) b Daping of the DC otor and accessories (Ns/rad). I Mass oent of inertia of the flywheel (kg 2 ). J Cobined ass oent of inertia of the flywheel and shaft and arature (kg 2 ). G Motor gain or proportionality constant ω Angular speed (rad/s) PI Proportional and integral controller TQ TecQuipent (Tradeark for servo otor anufacturer) I. Introduction Electroechanical devices (DC and alternating current otors) are widely used as prie overs for echanical systes and achines. In soe cases where autoation and/or control of the echanical systes is required, a control unit is attached to the electric otors and these type of otors are generally referred to as servo otor. Due to the iportance of the servo otors in the autoation of systes and processes, research studies on the characterization, atheatical odeling and paraeter identification of electroechanical devices have been published [-6]. Modeling and siulation of physical systes, a realistic coproise, are widely used in engineering for better understanding of the characteristics of systes in order to control and/or iprove systes perforance and reduce costs by building and testing a prototype at the preliinary stage instead of the exact achine. The concepts of odeling and paraeter identification are ore useful during odification of existing systes when little or no inforation about the existing syste is available. This paper is the outcoe of the author s efforts during the developent of laboratory anual for Systes Dynaic and Control course at the Departent of Mechanical Engineering, Jubail University College, Saudi Arabia. The anual for the TQ servo trainer contains no inforation about the echanical and electrical paraeters or DOI: / Page

2 properties of the syste, which are needed to teach students about designing and testing of PI controller for servo otor to siulate speed control and responses. The echanical and electrical properties of electroechanical devices are needed to derive atheatical odels. Even if these paraeters are docuented in the user anuals, it ay be necessary to deterine the if the syste has been used for a few years. The reason for this is that these paraeters will change due to aging, wear and tear of the syste. Different paraeter identification techniques and algoriths have been developed and used by different researchers to deterine soe iportant echanical and electrical properties of various odels of electroechanical systes. For exaples, a ulti-objective elitist genetic algorith has been used to iniize the error between the odel and easured responses of a DC otor [7]. Artificial Neutral Network has also been used to deterine odel paraeters and control dynaic systes [8]. One of the advantages of neutral network is that paraeter identification could be done online while the syste is working by using adaptive learning ethod. Furtherore, a paraeter estiation ethod using a block pulse function has been used to deterine the paraeters of DC servo otor systes [9]. The block pulse approxiates a function as a linear cobination of sets of orthogonal basis functions. The ost coon technique for paraeter identification is the least square error (LSE) ethod [0]. LSE involves the iniization of the su of the squared error between the odel and experiental responses. It should be noted that the different ethods of odel paraeter identification reported [, 2, 3, 5, 0] are siilar to a curve fitting, which involves changing the odel paraeters until a good atch between the odel and experiental responses is achieved. However, it is well-known that curve-fitting technique has ultiple solutions. This eans that there are infinite sets of values that would yield a good atch between the odel and experiental responses. Therefore, care needs to be taken to ensure that the obtained set of paraeters are realistic, that is the paraeters can give a unique solution, which can be related to the actual physical syste. A unique solution iplies that regardless of the assued initial paraeters while solving the error iniization of the odel and experiental responses, the final values of the paraeters will always be the sae. One of the ways to ensure the uniqueness of the identified paraeters is by using constraint optiization ethod, which checks the relationship between the paraeters in addition to the iniization of error between experiental and siulated responses. The constraint optiization technique has been used in the paraeter identification of odels for the huan hand-ar syste []. The reported studies [, 2, 3, 5, 0] did not check the uniqueness of the identified paraeters. The present study uses constraint optiization technique in addition to the conventional root-ean-square error ethod in order to ensure that the identified DC otor paraeters yield unique solution. In this study, the echanical and electrical paraeters (ass oent of inertia, daping, arature resistance and otor constant) of an electroechanical device (TQ DC servo otor and accessories) are deterined fro a linear odel of the syste and experiental responses of the device. Both the MATLAB Syste Identification and Constraint Optiization Toolboxes are used for the paraeter identification of the odel for the electroechanical device in order to ensure the uniqueness of the identified paraeters. The paraeters of the electroechanical device are needed in order to design and siulate a PI controller for speed control of the DC otor for deonstration to students in Systes Dynaic and Control course. II. Methods 2. Experiental Set-up Figure shows the electroechanical device that was used in the present study, the TecQuipent (TQ) CE0 Servo Trainer Apparatus [2, 3]. The CE0 Servo Trainer Apparatus is designed for DC servo otor speed and position control using a typical PID controller (TQ CE 20 Controller). The relevant parts of the apparatus, shown in Fig., for the experient coprises a DC otor, a DC generator and a flywheel ounted on a coon shaft. An analogue input signal to the otor circuit in the range 0 to ±0V enables variable shaft speed of rotation in either direction to be achieved. Shaft speeds, up to 999 revolutions per inute (RPM), are continually sensed optically and indicated on a panel ounted digital eter. An analogue voltage signal proportional to speed, in the range 0 to ±0V, is available at an adjacent socket. The DC otor ay be loaded, statically or dynaically, using the DC generator. The full range of loads ay be applied by inputting an analogue voltage in the range 0 to 0V. This electronically varies the load on the generator. The DC generator was not used in the present study. The CE 0 servo trainer has two additional reovable inertia discs which ay be added to the flywheel peranently fixed on the coon shaft. An electrically operated clutch, enabled by a toggle switch, is used to study angular position responses by engaging an output shaft via a 30: reduction gearbox. The apparatus ay also be used for the practical introduction into the design, operation and application of controllers with linear and non-linear paraeters and inputs. Figure 2 shows the TQ CE20 external analogue controller for the CE0 Servo Trainer. The CE 20 Controller board consists of signal generator, proportional, integral, derivative controllers and their DOI: / Page

3 (a) (b) Figure : (a) TQ CE0 Servo Trainer; (b) scheatic diagra of the servo trainer showing all coponents. Figure 2: TQ CE 20 analogue controller. DOI: / Page

4 cobinations, and other accessories necessary to build either an open loop or closed loop control actions for the CE 0 servo trainer. Since all of the power supplies for the built-in devices and systes are included, only low power (0 to ±0V) connections between the CE0 and the external controller are required. Finally, Fig. 3 shows the PC in which the TQ CE2000 software is installed for input and output data acquisitions, analysis, display and storage. The CE 2000 software has a dongle without which the software will not work. Figure 3: PC with CE 2000 software to easure and display responses of the DC servo otor. 2.2 Experiental Setup to Measure Responses of the DC Motor to Step Input Figure 4 shows the scheatic diagra for the experiental set-up to easure the open-loop responses of the DC otor to step inputs. The equipent used include CE0 Servo Trainer, CE20 Controller (only signal generation unit), CE 2000 Software installed on PC and accessories (connecting wires/cables). Prior to To TQ CE2000 software Figure 4: Experiental set-up for step response [3]. DOI: / Page

5 the experient, the CE0 s clutch for the gear syste was disengaged and the additional two reovable inertia discs were also reoved. Step input to the DC otor was achieved by using square wave signal of 0.5 Hz fro the signal generator on the CE20 Controller. The transitions in the square wave signal provide step changes in the input, and the output of the speed sensor will be a series of step responses, as shown in Fig. 5 fro the CE 2000 Software onitor. Figure 5: Experiental responses to step input. III. Matheatical Modeling The atheatical odel of the DC servo otor is derived fro the scheatic diagra shown in Fig. 6. The Load Generator in Fig. 6(a) was not used in the study hence the load control voltage v is zero, however the ass of the rotating parts of the generator shaft is considered in the total ass oent of inertia J of the syste. Fig. 6(b) shows a siplified scheatic diagra of the DC otor and its accessories. For the echanical coponents of the DC otor, Newton s second law of otion can be applied to obtain the atheatical odel equation of otion. Newton s second law can be applied as: d b J () dt Figure 6: (a) Scheatic diagra of DC otor and accessories [3]; (b) Siplified scheatic diagra of DC otor and accessories. DOI: / Page

6 where τ represents the DC otor s supplied torque (N), b is the effective viscous daping of the bearings in Ns/rad, J is the effective ass oent of inertia of the flywheel, and the shaft and arature of the DC otor and generator in kg 2, dω/dt is the angular acceleration of the shaft of the DC otor in /s 2, and ω is the angular speed of the DC otor in rad/s. The atheatical odel of the electrical circuit of the DC otor can be obtained by applying Kirchoff s Voltage Law (KVL). The electrical circuit equation is: di v( t) Ri L dt where v(t) is the input voltage to the DC otor in volts, R and i are the resistance and the current of the arature, respectively, L is the inductance of the arature windings, and v b is the back ef. According to Faraday s laws of electroagnetic induction, the torques generated by the DC otor is proportional to the arature current, and the otor's back ef is proportional to the angular speed, where the proportionality constant is the otor constant k. Faraday s laws can be expressed as: k i (3) vb k (4) Taking Laplace transfors and cobining Equations () through (4), the transfer function relating the output speed ω(s) to the input voltage V(s) can be expressed, in frequency doain, as: k V ( s) ( s) ( sj b)( sl R) k 2 The transfer function can be siplified by using the fact that the inductance L of the arature circuit is usually sall copared with the inertia of the flywheel. This will give the following first order transfer function: ( s) G V ( s) Ts where T, the tie constant, is given as: JR T = 2 br k and G, the gain of the DC otor, is given as: k G 2 br k 3. Paraeter Identification Techniques The echanical paraeters (the effective ass oent of inertia J and daping b) and the electrical paraeters (arature resistance R and servo otor constant k ) are identified in two stages. The first stage involves the use of the Syste Identification Toolbox in MATLAB to deterine the tie constant T (Eq. (7)) and the otor gain G (Eq. (8)) using the transfer function of the atheatical odel expressed in Eq. (6). It should be noted that the tie constant T of the electroechanical device and the otor gain G are related to the echanical and electrical paraeters of the servo otor that are to be deterined, as shown in Eqs. (7) and (8), respectively. The second stage of the analysis of the experiental response of the servo otor was the writing of codes for Constraint Optiization Toolbox in MATLAB to deterine the echanical and electrical paraeters (J, b, R and k related by Eqs. (7) and (8)) by iniizing the error between the experiental and odel v b responses using the root-ean-square ethod. These two stages are to ensure the uniqueness of the paraeter identification procedures. 3.. Deterination of tie constant and gain of the DC otor The tie constant T and the proportionality constant or gain G of the DC otor and accessories were first estiated fro the experiental step response graph shown in Fig. 5 using the established concept presented in Fig. 7. The tie constant is the tie, in seconds, that the syste response takes to reach 63.2 % of the steady-state response and the proportionality constant or gain can be deterine fro the steady-state value of the response, such that: (5) (6) (7) (8) (2) DOI: / Page

7 U G = steady-state value of response (9) Figure 8 shows the experiental output response to step input after the DC offset was reoved fro Fig. 5 to ensure that the response starts fro zero at tie equals to zero to confor to Fig. 7. The aplitude of the step input U is obtained fro Fig. 8 as 3.25 Volts, the steady state output response was also obtained fro Fig. 8 as Volts. Fro Eq. (9), G was calculated to be Siilarly, the tie constant T was calculated to be 0.5 seconds. These values of T and G were used as the starting values (initial guess) in MATLAB Syste Identification Toolbox, which is discussed in the next subsection. u(t) Figure 7: Standard step response graph [3]. Figure 8: Experiental step response of the DC servo otor Deterination of tie constant and gain of DC otor using MATLAB syste identification toolbox In other to ensure accurate deterination of the tie constant T and the gain G of the DC otor and accessories, MATLAB Syste Identification Toolbox was also used. The Syste Identification Toolbox in MATLAB is used for building accurate, siplified odels of coplex systes fro tie-series data. It provides tools for creating atheatical odels of dynaic systes based on easured output and input data, and an expression for transfer function. The toolbox features a flexible graphical user interface (GUI) that aids in the organization of data and odels. Figure 9 shows the ain graphical user interface of the syste identification toolbox in MATLAB. The toolbox has the option of specifying the starting values and the range within which the variable paraeters could be changed during the error iniization coputations. The values of T and G obtained in section 3.. above were used as the starting values (initial guess values) for the MATLAB Syste Identification Toolbox as shown in Fig. 9. DOI: / Page

8 Figure 9: MATLAB Syste Identification Toolbox GUI The experiental input and output data, shown in Fig. 8, corresponding to the first step response were iported into the MATLAB Syste Identification Toolbox using the GUI shown in Fig. 9. First order transfer function, siilar to Eq. (6), was selected in the MATLAB Syste Identification Toolbox. In Fig. 9, K corresponds to G, and T p corresponds to T in Eq. (6). The values of G and T obtained fro the MATLAB Syste Identification Toolbox are and , respectively. The coparison of the experiental and siulated response graphs is presented and discussed in section 4 titled Results and Discussion DC otor paraeters identifaction using MATLAB constraint optiization toolbox The four paraeters of the DC otor and its accessories are related to the two paraeters obtained in subsection 3..2 by Eqs. (7) and (8). In order to ensure the uniqueness of the paraeters, Constraint Optiization Toolbox in MATLAB was used. As stated earlier, the ajor challenge with syste paraeters identification is finding a unique solution since there are several cobinations of the syste s paraeters that could ake the error between easured and siulated responses a iniu. In order to ensure the uniqueness of the solution of the optiization proble, the paraeter J was estiated by calculating the ass oent of inertia of various coponents that could be easily calculated (flywheel and shaft). Furtherore, reported values for R, b and k [2, 6] were used as starting values (initial guess values) for the constraint optiization algorith to deterine the paraeters of the DC servo otor for speed control. The paraeters are deterined such that the root-ean-square error between the odel and easured responses are iniized and the values of J, R, b and k satisfy the relationships between paraeters of the DC otor and the tie constant T and the gain G as expressed in Eqs. (7) and (8). To accoplish this task, three MATLAB -files were written. The first -file is the ain file that was used to call the other two -files. The second file contains the objective function to be iniized, which is basically the MATLAB codes for the root-ean-square error between the odel and easured responses. The results of the second -file is indicated as f(x) in Fig. 0. The third -file contains the constraint equations, Eqs. (7) and (8), the results of which is shown as Max Constraint in Fig. 0. Figure 0 shows a screen shot of the MATLAB files and output window for the paraeter identification using constraint optiization technique. The iniized value of f(x) was found to be and the value of the constraint equation was found to be x 0-3. These values indicate that the solution of the constraint optiization algorith converged. The coparison of the experiental and siulated response graphs is presented and discussed in section 4 titled Results and Discussion. DOI: / Page

9 Figure 0: MATLAB files and output windows for constraint optiization. IV. Results and Discussion Figure shows the coparison of the siulated and easured responses based on the values of G = and T = seconds that were obtained fro the MATLAB Syste Identification Toolbox. The two responses are siilar except when tie is less than.5 seconds where there is a slight difference in the easured and siulated responses. The corresponding values of G and T that were directly calculated fro the experiental response graph (Fig. 8) are and 0.5 seconds, respectively. These values were only used as initial guess values since they are expected to be less accurate than those values obtained fro MATLAB Syste Identification Toolbox, which iniizes the error between the easured and siulated responses. Therefore, the transfer function for the first order odel of the DC servo otor is found to be as follows: ( s) G (0) V ( s) Ts s It should be noted that the output of the DC servo otor is speed in revolution per inute (RPM) or radians per second but the response graphs in Figure are expressed in voltage (volts) for convenience. The output voltage of the DC otor could be converted to speed in RPM by using a sensitivity factor of RPM/volt, which is reported in the user anual for the equipent [3]. The steady-state output response of the DC servo otor is 3.25 volts (Fig. ), this corresponds to RPM. The coparison of the easured and siulated step responses of the DC otor using the identified paraeters fro MATLAB Constraint Optiization Toolbox are presented in Figure 2. The figure shows good agreeent between the experiental and siulated responses of the syste above.5 seconds, siilar to Fig.. A slight deviation between the experiental and siulated responses is observable below.5 seconds in both Figs. and 2. This ay be attributed to error in siulation when there is a sudden change in the value of step input signal fro zero to 3.25 volts (Fig. 8). The echanical and electrical paraeters of the DC otor that were used to obtained the siulated response in Fig. 2 are: ass oent of inertia J = 9.85 x 0-3 kg 2, arature resistance R = 6.29 Ohs, daping b = 2.52 x 0-3 Ns/rad, and otor constant k =.57 x 0-2 N/Ap. These values were obtained fro the constraint optiization. DOI: / Page

10 Responses (Volts) Resposes (Volts) Modeling and Paraeter Identification of a DC Motor Using Constraint Optiization Technique Measured Siulated Tie (seconds) Figure : Coparison of experiental and siulated responses using MATLAB Syste Identification Toolbox for deterination of G and T Siulation Experient Tie (seconds) Figure 2: Coparison of experiental and siulated responses using MATLAB constraint optiization toolbox V. Conclusion The echanical and electrical paraeters (ass oent of inertia J, daping b, arature winding resistance R and direct current otor constant k ) of a DC servo otor (TQ CE 0 servo trainer) and its accessories were obtained. These paraeters are not reported in the user anual for the device by the anufacturer but the paraeters are needed for a proper design and testing of speed controller for the DC otor to enhance students learning. Laboratory experients were perfored to obtain the step responses of the DC otor and a atheatical odel was also derived for the DC otor in ters of the four unknown paraeters. The paraeters were obtained by iniizing the root-ean-square error between the odel response and experiental step response using Syste Identification and Constraint Optiization Toolboxes in MATLAB. The results of coparison between the experiental and siulated step responses showed excellent agreeent and the corresponding echanical and electrical paraeters of the DC otor were found to be ass oent of inertia J = 9.85 x 0-3 kg 2, arature resistance R = 6.29 Ohs, daping b = 2.52 x0-3 Ns/rad, and otor DOI: / Page

11 constant k =.57 x 0-2 N/Ap. These paraeters were used to prepare laboratory anual on design and siulation of Proportional-Integral controller for speed control, which is a topic in the syllabus for Systes Dynaic and Control course at the Departent of Mechanical Engineering, Jubail University College, Saudi Arabia. This work could be extended to study the position control and responses of the TQ CE 0 servo trainer when the clutch is engaged to include the gearbox. References []. N Sinha, C Dicenzo and B Szabados, Modeling of DC otors for control applications, IEEE Trans. Industrial Electronics and Control Instruentation, 2, 974, [2]. W. Lord and J. H. Hwang, DC servootors odeling and paraeter deterination. IEEE Trans. Industrial Applications, 3, 973, [3]. S Zahidi, R Dhaouadi and S Meber, Siultaneous identification of the linear and nonlinear characteristics of otor drives using Dynaic Wavelet Networks, Proc. of 0 th IEEE Conf. on Industrial Electronics and Applications (ICIEA), Auckland, New Zealand, 205, [4]. J V Prisco and P A Voglewede, Dynaic odeling of a belt driven electroechanical XY plotter cutter, Journal of Coputational Nonlinear Dynaics, 0(2), 205, [5]. C S Chen, S C Lin, S M Wang, Y M Hong, Adaptive control based on reduced-order paraeter identification and disturbance observer for linear otor, Proc. of ASME 2007 Conf. on International Manufacturing Science & Engineering, Atlanta, Georgia, USA, 2007, [6]. S Saab and R Abi Kaed-Bey, Paraeter identification of a DC otor: an experiental approach, IEEE Trans. on Electronics, Circuits and Systes, 2, 200, [7]. A Dupuis, M Ghribi and A Kaddouri, Multiobjective genetic estiation of DC otor paraeters and load torque, Proc. of IEEE International Conference on Industrial Technology, Busan, Korea (South), 2004, [8]. S. Weerasooriya and M. El-Sharkawi, Identification and control of a DC otor using back-propagation neural networks, IEEE Trans. on Energy Conversion, 6, 99, [9]. T Hanaoto, Y Tanaka, I Karube, T Mochizuk and Z Xu, A paraeter estiation ethod using block pulse functions for DC servo otor systes, Proc. IEEE International Conference on Industrial Electronics, Control, Instruentation, and Autoation, Power Electronics and Motion Control 3, 992, [0]. R Krneta, S Antic and D Stojanovic, Recursive least squares ethod in paraeters identification of DC otors odels. ELEC. ENERG, 8(3), 2005, []. S Adewusi, S Rakheja, and P Marcotte, Bioechanical Models of the Huan Hand-ar to Siulate Distributed Biodynaic Responses for Different Postures International Journal of Industrial Ergonoics 42, 202, [2]. [3]. User Manual for TQ CE 0 Servo Trainer, (TecQuipent Ltd., Bonsall Street, Long Eaton, Nottingha NG0 2AN, England). DOI: / Page

Laboratory Manual for DC Servo System Control Platform

Laboratory Manual for DC Servo System Control Platform Laboratory Manual for DC Servo Syste Control Platfor GSMT Series V1.01 2012.06 www.googoltech.co.cn 2012 Googol Technology. All rights reserved Copyrights Stateent All rights are reserved by The shall

More information

Parameter Identification of Transfer Functions Using MATLAB

Parameter Identification of Transfer Functions Using MATLAB Paraeter Identification of Transfer Functions Using MATLAB Mato Fruk, Goran Vujisić, Toislav Špoljarić Departent of Electrical Engineering The Polytechnic of Zagreb Konavoska, Zagreb, Croatia ato.fruk@tvz.hr,

More information

Torsion System. Encoder #3 ( 3 ) Third encoder/disk for Model 205a only. Figure 1: ECP Torsion Experiment

Torsion System. Encoder #3 ( 3 ) Third encoder/disk for Model 205a only. Figure 1: ECP Torsion Experiment Torsion Syste Introduction This lab experient studies dynaics of a torsional syste with single and ultiple degrees of freedo. The effects of various control configurations are studied in later part of

More information

Adaptive Harmonic IIR Notch Filter with Varying Notch Bandwidth and Convergence Factor

Adaptive Harmonic IIR Notch Filter with Varying Notch Bandwidth and Convergence Factor Journal of Counication and Coputer (4 484-49 doi:.765/548-779/4.6. D DAVID PUBLISHING Adaptive Haronic IIR Notch Filter with Varying Notch Bandwidth and Convergence Factor Li Tan, Jean Jiang, and Liango

More information

POWER QUALITY ASSESSMENT USING TWO STAGE NONLINEAR ESTIMATION NUMERICAL ALGORITHM

POWER QUALITY ASSESSMENT USING TWO STAGE NONLINEAR ESTIMATION NUMERICAL ALGORITHM POWER QUALITY ASSESSENT USING TWO STAGE NONLINEAR ESTIATION NUERICAL ALGORITH Vladiir Terzia ABB Gerany vadiir.terzia@de.abb.co Vladiir Stanoevic EPS Yugoslavia vla_sta@hotail.co artin axiini ABB Gerany

More information

ELEC2202 Communications Engineering Laboratory Frequency Modulation (FM)

ELEC2202 Communications Engineering Laboratory Frequency Modulation (FM) ELEC Counications Engineering Laboratory ---- Frequency Modulation (FM) 1. Objectives On copletion of this laboratory you will be failiar with: Frequency odulators (FM), Modulation index, Bandwidth, FM

More information

OTC Statistics of High- and Low-Frequency Motions of a Moored Tanker. sensitive to lateral loading such as the SAL5 and

OTC Statistics of High- and Low-Frequency Motions of a Moored Tanker. sensitive to lateral loading such as the SAL5 and OTC 61 78 Statistics of High- and Low-Frequency Motions of a Moored Tanker by J.A..Pinkster, Maritie Research Inst. Netherlands Copyright 1989, Offshore Technology Conference This paper was presented at

More information

Robust Acceleration Control of Electrodynamic Shaker Using µ Synthesis

Robust Acceleration Control of Electrodynamic Shaker Using µ Synthesis Proceedings of the 44th IEEE Conference on Decision and Control, and the European Control Conference 5 Seville, Spain, Deceber -5, 5 WeIC8. Robust Acceleration Control of Electrodynaic Shaker Using µ Synthesis

More information

Assignment 9 Ball and Beam Design Project

Assignment 9 Ball and Beam Design Project EE-371 CONTROL SYSTEMS LABORATORY Assignent 9 Ball and Bea Design Project Purpose The objectives of this project are: To obtain a atheatical odel and a linearized odel of the ball and bea syste. Design

More information

A NEW APPROACH TO UNGROUNDED FAULT LOCATION IN A THREE-PHASE UNDERGROUND DISTRIBUTION SYSTEM USING COMBINED NEURAL NETWORKS & WAVELET ANALYSIS

A NEW APPROACH TO UNGROUNDED FAULT LOCATION IN A THREE-PHASE UNDERGROUND DISTRIBUTION SYSTEM USING COMBINED NEURAL NETWORKS & WAVELET ANALYSIS A NEW APPROACH TO UNGROUNDED FAULT LOCATION IN A THREE-PHASE UNDERGROUND DISTRIBUTION SYSTEM USING COMBINED NEURAL NETWORKS & WAVELET ANALYSIS Jaal Moshtagh University of Bath, UK oshtagh79@yahoo.co Abstract

More information

Power Improvement in 64-Bit Full Adder Using Embedded Technologies Er. Arun Gandhi 1, Dr. Rahul Malhotra 2, Er. Kulbhushan Singla 3

Power Improvement in 64-Bit Full Adder Using Embedded Technologies Er. Arun Gandhi 1, Dr. Rahul Malhotra 2, Er. Kulbhushan Singla 3 Power Iproveent in 64-Bit Full Adder Using Ebedded Technologies Er. Arun Gandhi 1, Dr. Rahul Malhotra 2, Er. Kulbhushan Singla 3 1 Departent of ECE, GTBKIET, Chhapianwali Malout, Punjab 2 Director, Principal,

More information

EXPERIMENTAL VERIFICATION OF SINUSOIDAL APPROXIMATION IN ANALYSIS OF THREE-PHASE TWELVE-PULSE OUTPUT VOLTAGE TYPE RECTIFIERS

EXPERIMENTAL VERIFICATION OF SINUSOIDAL APPROXIMATION IN ANALYSIS OF THREE-PHASE TWELVE-PULSE OUTPUT VOLTAGE TYPE RECTIFIERS th INTERNATIONAL SYPOSIU on POWER ELECTRONICS - Ee 9 XV eđunarodni sipoziju Energetska elektronika Ee 9 NOVI SAD, REPUBLIC OF SERBIA, October 8 th - th, 9 EXPERIENTAL VERIFICATION OF SINUSOIDAL APPROXIATION

More information

NINTH INTERNATIONAL CONGRESS ON SOUND AND VIBRATION, ICSV9 PASSIVE CONTROL OF LAUNCH NOISE IN ROCKET PAYLOAD BAYS

NINTH INTERNATIONAL CONGRESS ON SOUND AND VIBRATION, ICSV9 PASSIVE CONTROL OF LAUNCH NOISE IN ROCKET PAYLOAD BAYS first nae & faily nae: Rick Morgans Page nuber: 1 NINTH INTERNATIONAL CONGRESS ON SOUND AND VIBRATION, ICSV9 PASSIVE CONTROL OF LAUNCH NOISE IN ROCKET PAYLOAD BAYS Rick Morgans, Ben Cazzolato, Anthony

More information

ACCURATE DISPLACEMENT MEASUREMENT BASED ON THE FREQUENCY VARIATION MONITORING OF ULTRASONIC SIGNALS

ACCURATE DISPLACEMENT MEASUREMENT BASED ON THE FREQUENCY VARIATION MONITORING OF ULTRASONIC SIGNALS XVII IMEKO World Congress Metrology in 3rd Millenniu June 22 27, 2003, Dubrovnik, Croatia ACCURATE DISPLACEMENT MEASUREMENT BASED ON THE FREQUENCY VARIATION MONITORING OF ULTRASONIC SIGNALS Ch. Papageorgiou

More information

Impact of the Reactive Power Compensation on Harmonic Distortion Level

Impact of the Reactive Power Compensation on Harmonic Distortion Level pact of the Reactive Power Copensation on Haronic Distortion Level J. A. M. eto,. C. Jesus, L. L. Piesanti Departaento de Tecnologia Universidade Regional do oroeste do Estado do Rio Grande do Sul juí

More information

Keywords: Equivalent Instantaneous Inductance, Finite Element, Inrush Current.

Keywords: Equivalent Instantaneous Inductance, Finite Element, Inrush Current. Discriination of Inrush fro Fault Currents in Power Transforers Based on Equivalent Instantaneous Inductance Technique Coupled with Finite Eleent Method Downloaded fro ijeee.iust.ac.ir at 5:47 IRST on

More information

Detection of Faults in Power System Using Wavelet Transform and Independent Component Analysis

Detection of Faults in Power System Using Wavelet Transform and Independent Component Analysis Detection of Faults in Power Syste Using Wavelet Transfor and Independent Coponent Analysis 1 Prakash K. Ray, 2 B. K. Panigrahi, 2 P. K. Rout 1 Dept. of Electrical and Electronics Engineering, IIIT, Bhubaneswar,

More information

EQUALIZED ALGORITHM FOR A TRUCK CABIN ACTIVE NOISE CONTROL SYSTEM

EQUALIZED ALGORITHM FOR A TRUCK CABIN ACTIVE NOISE CONTROL SYSTEM EQUALIZED ALGORITHM FOR A TRUCK CABIN ACTIVE NOISE CONTROL SYSTEM Guangrong Zou, Maro Antila, Antti Lanila and Jari Kataja Sart Machines, VTT Technical Research Centre of Finland P.O. Box 00, FI-0 Tapere,

More information

Smarter Balanced Assessment Consortium Claims, Targets, and Standard Alignment for Math

Smarter Balanced Assessment Consortium Claims, Targets, and Standard Alignment for Math Sarter Balanced Assessent Consortiu Clais, s, Stard Alignent for Math The Sarter Balanced Assessent Consortiu (SBAC) has created a hierarchy coprised of clais targets that together can be used to ake stateents

More information

TESTING OF ADCS BY FREQUENCY-DOMAIN ANALYSIS IN MULTI-TONE MODE

TESTING OF ADCS BY FREQUENCY-DOMAIN ANALYSIS IN MULTI-TONE MODE THE PUBLISHING HOUSE PROCEEDINGS OF THE ROMANIAN ACADEMY, Series A, OF THE ROMANIAN ACADEMY Volue 5, Nuber /004, pp.000-000 TESTING OF ADCS BY FREQUENCY-DOMAIN ANALYSIS IN MULTI-TONE MODE Daniel BELEGA

More information

A New Localization and Tracking Algorithm for Wireless Sensor Networks Based on Internet of Things

A New Localization and Tracking Algorithm for Wireless Sensor Networks Based on Internet of Things Sensors & Transducers 203 by IFSA http://www.sensorsportal.co A New Localization and Tracking Algorith for Wireless Sensor Networks Based on Internet of Things, 2 Zhang Feng, Xue Hui-Feng, 2 Zhang Yong-Heng,

More information

New Adaptive Linear Combination Structure for Tracking/Estimating Phasor and Frequency of Power System

New Adaptive Linear Combination Structure for Tracking/Estimating Phasor and Frequency of Power System 28 Journal of Electrical Engineering & echnology Vol. 5, No., pp. 28~35, 2 New Adaptive Linear Cobination Structure for racking/estiating Phasor and Frequency of Power Syste Choowong-Wattanasakpubal and

More information

Fundamental study for measuring microflow with Michelson interferometer enhanced by external random signal

Fundamental study for measuring microflow with Michelson interferometer enhanced by external random signal Bulletin of the JSME Journal of Advanced Mechanical Design, Systes, and Manufacturing Vol.8, No.4, 2014 Fundaental study for easuring icroflow with Michelson interferoeter enhanced by external rando signal

More information

THE IMPLEMENTATION OF PERMANENT MAGNET SYNCHRONOUS MOTOR SPEED TRACKING BASED ON ONLINEARTIFICIAL NEURAL NETWORK

THE IMPLEMENTATION OF PERMANENT MAGNET SYNCHRONOUS MOTOR SPEED TRACKING BASED ON ONLINEARTIFICIAL NEURAL NETWORK ISSN 1819-668 26-213 AsianResearch PublishingNetwork (ARPN).Allrights reserved. www.arpnjournals.co THE IMPLEMENTATION OF PERMANENT MAGNET SYNCHRONOUS MOTOR SPEED TRACKING BASED ON ONLINEARTIFICIAL NEURAL

More information

THREE-PHASE AC CHOPPER SUPPLIED FOR INDUCTION MOTOR

THREE-PHASE AC CHOPPER SUPPLIED FOR INDUCTION MOTOR International Journal of Engineering Inventions e-issn: 78-7461, p-issn: 19-6491 Volue 7, Issue 8 [August 018] PP: 01-14 THREE-PHASE AC CHOPPER SUPPIED FOR INDUCTION MOTOR Mohaed Shaban Electric & Electronic

More information

Comparison Between PLAXIS Output and Neural Network in the Guard Walls

Comparison Between PLAXIS Output and Neural Network in the Guard Walls Coparison Between PLAXIS Output and Neural Network in the Guard Walls Ali Mahbod 1, Abdolghafar Ghorbani Pour 2, Abdollah Tabaroei 3, Sina Mokhtar 2 1- Departent of Civil Engineering, Shahid Bahonar University,

More information

Applied Digital Control: Optimization for System Identification and Controller Design

Applied Digital Control: Optimization for System Identification and Controller Design Applied Digital Control: Optiization for Syste Identification and Controller Design David G. Wilson Mechanical Engineering University of New Mexico 1. wilson@e.un.edu 2. starr@un.edu 2/27/2006 Lecture

More information

Precise Indoor Localization System For a Mobile Robot Using Auto Calibration Algorithm

Precise Indoor Localization System For a Mobile Robot Using Auto Calibration Algorithm Precise Indoor Localization Syste For a Mobile Robot Using Auto Calibration Algorith Sung-Bu Ki, JangMyung Lee, and I.O. Lee : Pusan National University, http://robotics.ee.pusan.ac.r, : Ninety syste Abstract:

More information

Session Eleven: An On-Line Technique to Detect Winding Deformation within Power Transformers

Session Eleven: An On-Line Technique to Detect Winding Deformation within Power Transformers Session Eleven: An On-Line Technique to Detect Winding Deforation within Power Transforers A. Abu-Siada Senior Lecturer, Curtin University Abstract Frequency Response Analysis (FRA) has been growing in

More information

Nano positioning control for dual stage using minimum order observer

Nano positioning control for dual stage using minimum order observer Journal of Mechanical Science and Technology 26 (3) (212) 941~947 www.springerlink.co/content/1738-494x DOI 1.17/s1226-11-1252-8 Nano positioning control for dual stage using iniu order observer Hong Gun

More information

Switching Transients of Low Cost Two Speed Drive for Single-Phase Induction Machine

Switching Transients of Low Cost Two Speed Drive for Single-Phase Induction Machine Switching Transients of Low Cost Two Speed Drive for Single-Phase Induction Machine L. Woods, A. Hoaifar, F. Fatehi M. Choat, T. Lipo CA&T State University University of Wisconsin-Madison Greensboro, C

More information

CHAPTER 2 POSITION SERVO DRIVE OF BLDC MOTOR FOR SINGLE LINK ROBOTIC ARM

CHAPTER 2 POSITION SERVO DRIVE OF BLDC MOTOR FOR SINGLE LINK ROBOTIC ARM 22 CHAPTER 2 POSITION SERVO DRIVE OF BLDC MOTOR FOR SINGLE LINK ROBOTIC ARM 2.1 INTRODUCTION An industrial autoation involves robotic to handle aterials in different environents with different pay loads

More information

We are IntechOpen, the world s leading publisher of Open Access books Built by scientists, for scientists. International authors and editors

We are IntechOpen, the world s leading publisher of Open Access books Built by scientists, for scientists. International authors and editors We are IntechOpen, the world s leading publisher of Open Access books Built by scientists, for scientists 4,1 116, 12M Open access books available International authors and editors Downloads Our authors

More information

Eddy-Current-Based Contactless Speed Sensing of Conductive Surfaces

Eddy-Current-Based Contactless Speed Sensing of Conductive Surfaces 1 IEEE Proceedings of the Southern Power Electronics Conference (SPEC 1), Auckland, New Zealand, Deceber 5-, 1 Eddy-Current-Based Contactless Speed Sensing of Conductive Surfaces A. Tüysüz, M. Flankl,

More information

Yield Enhancement Techniques for 3D Memories by Redundancy Sharing among All Layers

Yield Enhancement Techniques for 3D Memories by Redundancy Sharing among All Layers Yield Enhanceent Techniques for 3D Meories by Redundancy Sharing aong All Layers Joohwan Lee, Kihyun Park, and Sungho Kang Three-diensional (3D) eories using through-silicon vias (TSVs) will likely be

More information

Design of a Radioactive Source Sampler Based on CPAC

Design of a Radioactive Source Sampler Based on CPAC IJCSI International Journal of Coputer Science Issues, Vol. 0, Issue, No, March 03 ISSN (Print): 694-084 ISSN (Online): 694-0784 www.ijcsi.org Design of a Radioactive Source Sapler Based on CPAC Bin Yang,

More information

Modeling, Analysis and Speed Control Design Methods of a DC Motor

Modeling, Analysis and Speed Control Design Methods of a DC Motor Design Methods of a DC Motor Dr. Jaal A. Mohaed* Received on: 3/1/009 Accepted on:5 /1/011 Abstract Modern anufacturing systes are autoated achines that perfor the required tasks. The electric otors are

More information

EXPERIMENTATION FOR ACTIVE VIBRATION CONTROL

EXPERIMENTATION FOR ACTIVE VIBRATION CONTROL CHPTER - 6 EXPERIMENTTION FOR CTIVE VIBRTION CONTROL 6. INTRODUCTION The iportant issues in vibration control applications are odeling the sart structure with in-built sensing and actuation capabilities

More information

Novel Multilevel Inverter Carrier-Based PWM Method

Novel Multilevel Inverter Carrier-Based PWM Method 98 IEEE TRANSACTIONS ON INDUSTRY APPLICATIONS, VOL. 5, NO. 5, SEPTEMBER/OCTOBER 999 Novel Multilevel Inverter Carrier-Based PWM Method Leon M. Tolbert, Senior Meber, IEEE, and Thoas G. Habetler, Senior

More information

Optimal Modulation Index of the Mach-Zehnder Modulator in a Coherent Optical OFDM System Employing Digital Predistortion

Optimal Modulation Index of the Mach-Zehnder Modulator in a Coherent Optical OFDM System Employing Digital Predistortion Optial Modulation Index of the Mach-Zehnder Modulator in a Coherent Optical OFDM yste Eploying Digital redistortion David Rörich, Xiaojie Wang, Michael Bernhard, Joachi peidel Universität tuttgart, Institut

More information

Evaluation of Steady-State and Dynamic Performance of a Synchronized Phasor Measurement Unit

Evaluation of Steady-State and Dynamic Performance of a Synchronized Phasor Measurement Unit 01 IEEE Electrical Power and Energy Conference Evaluation of Steady-State and Dynaic Perforance of a Synchronized Phasor Measureent Unit Dinesh Rangana Gurusinghe, Graduate Student Meber, IEEE, Athula

More information

A soft decision decoding of product BCH and Reed-Müller codes for error control and peak-factor reduction in OFDM

A soft decision decoding of product BCH and Reed-Müller codes for error control and peak-factor reduction in OFDM A soft decision decoding of product BCH and Reed-Müller codes for error control and pea-factor reduction in OFDM Yves LOUET *, Annic LE GLAUNEC ** and Pierre LERAY ** * PhD Student and ** Professors, Departent

More information

Modeling Beam forming in Circular Antenna Array with Directional Emitters

Modeling Beam forming in Circular Antenna Array with Directional Emitters International Journal of Research in Engineering and Science (IJRES) ISSN (Online): 2320-9364, ISSN (Print): 2320-9356 Volue 5 Issue 3 ǁ Mar. 2017 ǁ PP.01-05 Modeling Bea foring in Circular Antenna Array

More information

INTERNATIONAL TELECOMMUNICATION UNION

INTERNATIONAL TELECOMMUNICATION UNION INTERNATIONAL TELECOMMUNICATION UNION ITU-T J.133 TELECOMMUNICATION STANDARDIZATION SECTOR OF ITU (07/2002) SERIES J: CABLE NETWORKS AND TRANSMISSION OF TELEVISION, SOUND PROGRAMME AND OTHER MULTIMEDIA

More information

A Novel NLOS Mitigation Approach for Wireless Positioning System

A Novel NLOS Mitigation Approach for Wireless Positioning System 2 3rd International Conference on Coputer and Electrical Engineering (ICCEE 2) IPCSIT vol. 53 (22) (22) IACSIT Press, Singapore DOI:.7763/IPCSIT.22.V53.No..54 A Novel NLOS Mitigation Approach for Wireless

More information

Characteristics of a Stand-Alone Induction Generator in Small Hydroelectric Plants

Characteristics of a Stand-Alone Induction Generator in Small Hydroelectric Plants Characteristics of a Stand-Alone nduction Generator in Sall Hydroelectric Plants M. H. Haque School of Electrical and Electronic Engineering Nanyang Technological University Singapore 69798 Abstract-This

More information

NONLINEAR WAVELET PACKET DENOISING OF IMPULSIVE VIBRATION SIGNALS NIKOLAOS G. NIKOLAOU, IOANNIS A. ANTONIADIS

NONLINEAR WAVELET PACKET DENOISING OF IMPULSIVE VIBRATION SIGNALS NIKOLAOS G. NIKOLAOU, IOANNIS A. ANTONIADIS NONLINEAR WAVELET PACKET DENOISING OF IMPULSIVE VIBRATION SIGNALS NIKOLAOS G. NIKOLAOU, IOANNIS A. ANTONIADIS Departent of Mechanical Engineering, Machine Design and Control Systes Section National Technical

More information

PREDICTING SOUND LEVELS BEHIND BUILDINGS - HOW MANY REFLECTIONS SHOULD I USE? Apex Acoustics Ltd, Gateshead, UK

PREDICTING SOUND LEVELS BEHIND BUILDINGS - HOW MANY REFLECTIONS SHOULD I USE? Apex Acoustics Ltd, Gateshead, UK PREDICTING SOUND LEVELS BEHIND BUILDINGS - HOW MANY REFLECTIONS SHOULD I USE? W Wei A Cooke J Havie-Clark Apex Acoustics Ltd, Gateshead, UK Apex Acoustics Ltd, Gateshead, UK Apex Acoustics Ltd, Gateshead,

More information

Analysis of wind farm islanding experiment

Analysis of wind farm islanding experiment Downloaded fro orbit.dtu.dk on: Apr 4, 19 Analysis of wind far islanding experient Pedersen, Jørgen Kaas; Pedersen, Knud Ole Helgesen; Poulsen, Niels Kjølstad; Akke, Magnus Published in: I E E E Transactions

More information

Compensated Single-Phase Rectifier

Compensated Single-Phase Rectifier Copensated Single-Phase Rectifier Jānis DoniĦš Riga Technical university jdonins@gail.co Abstract- Paper describes ethods of rectified DC pulsation reduction adding a ensation node to a single phase rectifier.

More information

Modeling and Control of a Low Power Wind Turbine

Modeling and Control of a Low Power Wind Turbine 4 th International Conference on DEVELOPMEN AND APPLICAION SYSEMS, Suceava, Roania, May 4-6, 08 Modeling and Control of a Low Power Wind urbine Dana-Alexandra Ciupăgeanu, Student Meber, IEEE, Gheorghe

More information

Real Time Etch-depth Measurement Using Surface Acoustic Wave Sensor

Real Time Etch-depth Measurement Using Surface Acoustic Wave Sensor Australian Journal of Basic and Applied Sciences, (8): -7, 1 ISSN 1991-8178 Real Tie Etch-depth Measureent Using Surface Acoustic Wave Sensor 1 Reza Hosseini, Navid Rahany, 3 Behrad Soltanbeigi, Rouzbeh

More information

Hand Gesture Recognition and Its Application in Robot Control

Hand Gesture Recognition and Its Application in Robot Control IJCSI International Journal of Coputer Science Issues, Volue 13, Issue 1, January 016 www.ijcsi.org 10 Hand Gesture Recognition and Its Application in Robot Control Pei-Guo Wu 1 and Qing-Hu Meng 1 Inforation

More information

A Robust Scheme for Distributed Control of Power Converters in DC Microgrids with Time-Varying Power Sharing

A Robust Scheme for Distributed Control of Power Converters in DC Microgrids with Time-Varying Power Sharing A Robust Schee for Distributed Control of Power Converters in DC Microgrids with Tie-Varying Power Sharing Mayank Baranwal,a, Alireza Askarian,b, Srinivasa M. Salapaka,c and Murti V. Salapaka,d Abstract

More information

DSI3 Sensor to Master Current Threshold Adaptation for Pattern Recognition

DSI3 Sensor to Master Current Threshold Adaptation for Pattern Recognition International Journal of Signal Processing Systes Vol., No. Deceber 03 DSI3 Sensor to Master Current Threshold Adaptation for Pattern Recognition David Levy Infineon Austria AG, Autootive Power Train Systes,

More information

Relation between C/N Ratio and S/N Ratio

Relation between C/N Ratio and S/N Ratio Relation between C/N Ratio and S/N Ratio In our discussion in the past few lectures, we have coputed the C/N ratio of the received signals at different points of the satellite transission syste. The C/N

More information

Design and Implementation of Serial Port Ultrasonic Distance Measurement System Based on STC12 Jian Huang

Design and Implementation of Serial Port Ultrasonic Distance Measurement System Based on STC12 Jian Huang International Conference on Education, Manageent and Coputer Science (ICEMC 2016) Design and Ipleentation of Serial Port Ultrasonic Distance Measureent Syste Based on STC12 Jian Huang Xijing University,

More information

A Novel Sine Duty-Cycle Modulation Control Scheme for Photovoltaic Single-Phase Power Inverters

A Novel Sine Duty-Cycle Modulation Control Scheme for Photovoltaic Single-Phase Power Inverters Leandre Nnee Nnee, Jean Mbihi A Novel Sine Duty-Cycle Modulation Control Schee for Photovoltaic Single-Phase Power Inverters ARNAUD OBONO BIYOBO Research Laboratory of Coputer Science Engineering and Autoation

More information

ARCING HIGH IMPEDANCE FAULT DETECTION USING REAL CODED GENETIC ALGORITHM

ARCING HIGH IMPEDANCE FAULT DETECTION USING REAL CODED GENETIC ALGORITHM ARCING HIGH IMPEDANCE FAULT DETECTION USING REAL CODED GENETIC ALGORITHM Naser Zaanan Jan Sykulski A. K. Al-Othan School of Electronics & School of Electronics & Coputer Science Dept. Electrical Engineering

More information

AN OPTIMAL DESIGN PROCESS FOR AN ADEQUATE PRODUCT?

AN OPTIMAL DESIGN PROCESS FOR AN ADEQUATE PRODUCT? AN OPTIMAL DESIGN PROCESS FOR AN ADEQUATE PRODUCT? P. J. Clarkson University of Cabridge Departent of Engineering e-ail: pjc10@ca.ac.uk Keywords: process odelling, robustness, optiisation Abstract: The

More information

ELECTROMAGNETIC COVERAGE CALCULATION IN GIS

ELECTROMAGNETIC COVERAGE CALCULATION IN GIS ELECTROMAGNETIC COVERAGE CALCULATION IN GIS M. Uit Guusay 1, Alper Sen 1, Uut Bulucu 2, Aktul Kavas 2 1 Yildiz Technical University, Departent of Geodesy and Photograetry Engineering, Besiktas, Istanbul,

More information

Experiment 7: Frequency Modulation and Phase Locked Loops October 11, 2006

Experiment 7: Frequency Modulation and Phase Locked Loops October 11, 2006 Experient 7: Frequency Modulation and Phase ocked oops October 11, 2006 Frequency Modulation Norally, we consider a voltage wave for with a fixed frequency of the for v(t) = V sin(ω c t + θ), (1) where

More information

LUENBERGER ALGORITHM BASED HARMONICS ESTIMATOR FOR FRONT END RECTIFIER AND PWM-VSI

LUENBERGER ALGORITHM BASED HARMONICS ESTIMATOR FOR FRONT END RECTIFIER AND PWM-VSI LUENBERGER ALGORITHM BASED HARMONICS ESTIMATOR FOR FRONT END RECTIFIER AND PWM-VSI P Ajay-D-Vial Raj R.Sundaraurthy S Jeevananthan M.Sudhakaran Departent of Electrical and Electronics Engineering, Pondicherry

More information

Fatigue Analysis of VMC Spindle

Fatigue Analysis of VMC Spindle ISSN 2395-1621 Fatigue Analysis of VMC Spindle #1 Tushar Gadekar, #2 Ajit Patil, #3 S.A Kulkarni 1 tdgadekar13.scoe@gail.co 2 sakulkarni.scoe@sinhgad.edu #13 Sinhgad College of Engineering, Pune, India

More information

DIGITAL Communications

DIGITAL Communications DIGITAL Counications Contents Introduction to Counication Systes Analogue Modulation AM, DSBSC, SB, SSB, FM, PM, Narrow band FM, PLL Deodulators, and FLL Loops Sapling Systes Tie and Frequency Division

More information

Secondary-side-only Simultaneous Power and Efficiency Control in Dynamic Wireless Power Transfer System

Secondary-side-only Simultaneous Power and Efficiency Control in Dynamic Wireless Power Transfer System 069060 Secondary-side-only Siultaneous Power and Efficiency Control in Dynaic Wireless Power Transfer Syste 6 Giorgio ovison ) Daita Kobayashi ) Takehiro Iura ) Yoichi Hori ) ) The University of Tokyo,

More information

RAKE Receiver. Tommi Heikkilä S Postgraduate Course in Radio Communications, Autumn II.

RAKE Receiver. Tommi Heikkilä S Postgraduate Course in Radio Communications, Autumn II. S-72333 Postgraduate Course in Radio Counications, Autun 2004 1 RAKE Receiver Toi Heikkilä toiheikkila@teliasoneraco Abstract RAKE receiver is used in CDMA-based (Code Division Multiple Access) systes

More information

Intermediate-Node Initiated Reservation (IIR): A New Signaling Scheme for Wavelength-Routed Networks with Sparse Conversion

Intermediate-Node Initiated Reservation (IIR): A New Signaling Scheme for Wavelength-Routed Networks with Sparse Conversion Interediate-Node Initiated Reservation IIR): A New Signaling Schee for Wavelength-Routed Networks with Sparse Conversion Kejie Lu, Jason P. Jue, Tiucin Ozugur, Gaoxi Xiao, and Irich Chlatac The Center

More information

Analysis of Time-Frequency Energy for Environmental Vibration Induced by Metro

Analysis of Time-Frequency Energy for Environmental Vibration Induced by Metro 6 th International Conference on Advances in periental Structural ngineering th International Workshop on Advanced Sart Materials and Sart Structures Technology August -, 05, University of Illinois, Urbana-Chapaign,

More information

Controlling an Equilibrist Lego Robot

Controlling an Equilibrist Lego Robot Proceedings of the World Congress on Engineering 05 Vol I WCE 05, July - 3, 05, London, U.K. Controlling an Equilibrist Lego Robot Vinicius Silva, Pedro Leite, Filoena Soares, Gil Lopes, João Sena Esteves

More information

High Impedance Fault Detection in Electrical Power Feeder by Wavelet and GNN

High Impedance Fault Detection in Electrical Power Feeder by Wavelet and GNN International Journal of Engineering and Applied Sciences (IJEAS) ISSN: 2394-3661, Volue-2, Issue-3, March 2015 High Ipedance Fault Detection in Electrical Power Feeder by Wavelet and GNN Majid Jail, Rajveer

More information

Transactions on Industrial Electronics IEEE TRANSACTIONS ON INDUSTRIAL ELECTRONICS 1

Transactions on Industrial Electronics IEEE TRANSACTIONS ON INDUSTRIAL ELECTRONICS 1 Page of IEEE TRANSACTIONS ON INDUSTRIAL ELECTRONICS Abstract This paper details the design considerations of a peranent agnet (PM), three phase, high speed, synchronous achine for fault tolerant operation.

More information

Three Component Time-domain Electromagnetic Surveying: Modeling and Data Analysis

Three Component Time-domain Electromagnetic Surveying: Modeling and Data Analysis PIERS ONLINE, VOL., NO., 75 Three Coponent Tie-doain Electroagnetic Surveying: Modeling and Data Analysis Chow-Son Chen 1, Wei-Hsuan Chiu 1, and Ching-Ren Lin 1 Institute of Geophysics, National Central

More information

Analyzing of dynamic characteristics for discrete S-PCNN Rencan Nie1, Shaowen Yao2, Dongming Zhou1and Haiying Deng1,a

Analyzing of dynamic characteristics for discrete S-PCNN Rencan Nie1, Shaowen Yao2, Dongming Zhou1and Haiying Deng1,a Analyzing of dynaic characteristics for discrete S-PCNN Rencan Nie, Shaowen Yao, Donging Zhouand Haiying Deng,a School of Inforation Science, Yunnan University, Kuning 659, China; Graduate School, Yunnan

More information

Mitigation of GPS L 2 signal in the H I observation based on NLMS algorithm Zhong Danmei 1, a, Wang zhan 1, a, Cheng zhu 1, a, Huang Da 1, a

Mitigation of GPS L 2 signal in the H I observation based on NLMS algorithm Zhong Danmei 1, a, Wang zhan 1, a, Cheng zhu 1, a, Huang Da 1, a 2nd International Conference on Electrical, Coputer Engineering and Electronics (ICECEE 25 Mitigation of GPS L 2 signal in the H I observation based on NLMS algorith Zhong Danei, a, Wang zhan, a, Cheng

More information

ROBUST UNDERWATER LOCALISATION OF ULTRA LOW FREQUENCY SOURCES IN OPERATIONAL CONTEXT

ROBUST UNDERWATER LOCALISATION OF ULTRA LOW FREQUENCY SOURCES IN OPERATIONAL CONTEXT ROBUST UNDERWATER LOCALISATION OF ULTRA LOW FREQUENCY SOURCES IN OPERATIONAL CONTEXT M. Lopatka a, B. Nicolas a, G. Le Touzé a,b, X. Cristol c, B. Chalindar c, J. Mars a, D. Fattaccioli d a GIPSA-Lab /DIS/

More information

Optical fiber beamformer for processing two independent simultaneous RF beams

Optical fiber beamformer for processing two independent simultaneous RF beams Optical fiber beaforer for processing two independent siultaneous RF beas M. Jaeger, S. Granieri *, and A. Siahakoun Departent of Physics and Optical Engineering, Rose-Hulan Institute of Technology Terre

More information

International Journal of Advanced Research in Electronics and Communication Engineering (IJARECE) Volume 3, Issue 9, September 2014

International Journal of Advanced Research in Electronics and Communication Engineering (IJARECE) Volume 3, Issue 9, September 2014 International Journal of Advanced Research in Electronics and Counication Engineering Volue 3, Issue 9, Septeber 2014 High Speed Error Detection and Data Recovery Architecture for Video Testing Applications

More information

A simple charge sensitive preamplifier for experiments with a small number of detector channels

A simple charge sensitive preamplifier for experiments with a small number of detector channels A siple charge sensitive preaplifier for experients with a sall nuber of detector channels laudio Arnaboldi and Gianluigi Pessina Istituto Nazionale di Fisica Nucleare (INFN) Università degli Studi di

More information

Radar Imaging of Non-Uniformly Rotating Targets via a Novel Approach for Multi-Component AM-FM Signal Parameter Estimation

Radar Imaging of Non-Uniformly Rotating Targets via a Novel Approach for Multi-Component AM-FM Signal Parameter Estimation Sensors 5, 5, 695-693; doi:.339/s53695 Article OPEN ACCESS sensors ISSN 44-8 www.dpi.co/journal/sensors Radar Iaging of Non-Uniforly Rotating Targets via a Novel Approach for Multi-Coponent AM-FM Signal

More information

Article history: Received Oct 24, 2016 Revised Feb 5, 2017 Accepted Feb 19, 2017

Article history: Received Oct 24, 2016 Revised Feb 5, 2017 Accepted Feb 19, 2017 International Journal of Electrical and Coputer Engineering (IJECE) Vol. 7, No., April 017, pp. 610~618 ISSN: 088-8708, DOI: 10.11591/ijece.v7i.pp610-618 610 Optiizing Tri-Core Peranent-Magnet-Linear-Generator

More information

PID CONTROL DESIGN FOR REHABILITATION BY QUASI-ISOMETRIC TRAINING IN PARAPLEGIA: A SIMULATION STUDY

PID CONTROL DESIGN FOR REHABILITATION BY QUASI-ISOMETRIC TRAINING IN PARAPLEGIA: A SIMULATION STUDY PID CONROL DESIGN FOR REHABILIAION BY QUASI-ISOMERIC RAINING IN PARAPLEGIA: A SIMULAION SUDY Fabio Previdi*, Maurizio Ferrarin, Sergio Savaresi #, Sergio Bittanti # * Dipartiento di Ingegneria Gestionale

More information

Autotuning of anisochronic controllers for delay systems

Autotuning of anisochronic controllers for delay systems Autotuning of anisochronic controllers for delay systes ROMAN PROOP, LIBOR PEAŘ, RADE MATUŠŮ, JIŘÍ ORBEL Faculty of Applied Inforatics, Toas Bata University in Zlín Ná. T.G.Masaryka 5555, 76 Zlín, CZECH

More information

SECURITY AND BER PERFORMANCE TRADE-OFF IN WIRELESS COMMUNICATION SYSTEMS APPLICATIONS

SECURITY AND BER PERFORMANCE TRADE-OFF IN WIRELESS COMMUNICATION SYSTEMS APPLICATIONS Latin Aerican Applied Research 39:187-192 (2009) SECURITY AND BER PERFORMANCE TRADE-OFF IN WIRELESS COMMUNICATION SYSTEMS APPLICATIONS L. ARNONE, C. GONZÁLEZ, C. GAYOSO, J. CASTIÑEIRA MOREIRA and M. LIBERATORI

More information

WIPL-D Pro: What is New in v12.0?

WIPL-D Pro: What is New in v12.0? WIPL-D Pro: What is New in v12.0? Iproveents/new features introduced in v12.0 are: 1. Extended - Extree Liits a. Extreely LOW contrast aterials b. Extended resolution for radiation pattern c. Extreely

More information

Travelling waves for finding the fault location in transmission lines

Travelling waves for finding the fault location in transmission lines Journal Electrical and Electronic Engineering 3; (): -9 Published online April, 3 (http://www.sciencepublishinggroup.co/j/jeee) doi:.648/j.jeee.3. Travelling waves for finding the fault location in transission

More information

A Wireless Transmission Technique for Remote Monitoring and Recording System on Power Devices by GPRS Network

A Wireless Transmission Technique for Remote Monitoring and Recording System on Power Devices by GPRS Network Proceedings of the 6th WSEAS International Conference on Instruentation, Measureent, Circuits & Systes, Hangzhou, China, April 15-17, 007 13 A Wireless Transission Technique for Reote Monitoring and Recording

More information

Dual-Band Channel Measurements for an Advanced Tyre Monitoring System

Dual-Band Channel Measurements for an Advanced Tyre Monitoring System Dual-Band Channel Measureents for an Advanced Tyre Monitoring Syste Gregor Lasser and Christoph F. Mecklenbräuker Vienna University of Technology Institute of Counications and Radio-Frequency Engineering

More information

Non-Linear Weighting Function for Non-stationary Signal Denoising

Non-Linear Weighting Function for Non-stationary Signal Denoising Non-Linear Weighting Function for Non-stationary Signal Denoising Farès Abda, David Brie, Radu Ranta To cite this version: Farès Abda, David Brie, Radu Ranta. Non-Linear Weighting Function for Non-stationary

More information

Isolation System with Wireless Power Transfer for Multiple Gate Driver Supplies of a Medium Voltage Inverter

Isolation System with Wireless Power Transfer for Multiple Gate Driver Supplies of a Medium Voltage Inverter Isolation Syste with Wireless Power Transfer for Multiple Gate Driver Supplies of a Mediu Voltage Inverter Keisuke Kusaka, Koji Orikawa and Jun-ichi Itoh Dept. of Energy and Environental Nagaoka University

More information

ANALYSIS AND OPTIMIZATION OF SYNTHETIC APERTURE ULTRASOUND IMAGING USING THE EFFECTIVE APERTURE APPROACH. Milen Nikolov, Vera Behar

ANALYSIS AND OPTIMIZATION OF SYNTHETIC APERTURE ULTRASOUND IMAGING USING THE EFFECTIVE APERTURE APPROACH. Milen Nikolov, Vera Behar International Journal "Inforation heories & Applications" Vol. 57 AALYSIS AD OPIMIZAIO OF SYHEIC APEUE ULASOUD IMAGIG USIG HE EFFECIVE APEUE APPOACH Milen ikolov, Vera Behar Abstract: An effective aperture

More information

A.C. FUNDA- MENTALS. Learning Objectives

A.C. FUNDA- MENTALS. Learning Objectives C H A P T E R Learning Objectives Generation of Alternating Voltages and Currents Alternate Method for the Equations of Alternating Voltages and currents Siple Wavefors Cycle Different Fors of E.M.F. Equation

More information

Track-Before-Detect for an Active Towed Array Sonar

Track-Before-Detect for an Active Towed Array Sonar 17-20 Noveber 2013, Victor Harbor, Australia Track-Before-Detect for an Active Towed Array Sonar Han X. Vu (1,2), Sauel J. Davey (1,2), Fiona K. Fletcher (1), Sanjeev Arulapala (1,2), Richard Elle (1)

More information

Dynamic Model Displacement for Model-mediated Teleoperation

Dynamic Model Displacement for Model-mediated Teleoperation Dynaic Model Displaceent for Model-ediated Teleoperation Xiao Xu Giulia Paggetti Eckehard Steinbach Institute for Media Technology, Technische Universität München, Munich, Gerany ABSTRACT In this paper,

More information

FORWARD MASKING THRESHOLD ESTIMATION USING NEURAL NETWORKS AND ITS APPLICATION TO PARALLEL SPEECH ENHANCEMENT

FORWARD MASKING THRESHOLD ESTIMATION USING NEURAL NETWORKS AND ITS APPLICATION TO PARALLEL SPEECH ENHANCEMENT FORWARD MASKING THRESHOLD ESTIMATION USING NEURAL NETWORKS AND ITS APPLICATION TO PARALLEL SPEECH ENHANCEMENT T. S. GUNAWAN 1, O. O. KHALIFA 1, E. AMBIKAIRAJAH 2 1 Electrical and Coputer Engineering Departent,

More information

An improved Active Islanding Detection Technology for Grid-connected Solar Photovoltaic System

An improved Active Islanding Detection Technology for Grid-connected Solar Photovoltaic System An iproved Active Islanding Detection Technology for Grid-connected Solar Photovoltaic Syste H. T. Yang, P. C. Peng, T. Y. Tsai, and Y. Y. Hong Abstract--Solar photovoltaic (PV) generation has drawn ore

More information

A Novel High Resolution Spectrum Sensing Algorithm for Cognitive Radio Applications

A Novel High Resolution Spectrum Sensing Algorithm for Cognitive Radio Applications IOSR Journal of Electronics and Counication Engineering (IOSR-JECE) e-issn: 78-834,p- ISSN: 78-8735.Volue 8, Issue 4 (Nov. - Dec. 013), PP 30-38 A Novel High Resolution Spectru Sensing Algorith for Cognitive

More information

Implementation of Adaptive Viterbi Decoder

Implementation of Adaptive Viterbi Decoder Ipleentation of Adaptive Viterbi Decoder Devendra Made #1 VIII Se B.E.(Etrx) K.D.K.College of Engineering, Nagpur, Maharashtra(I) Asst. Prof. R.B. Khule *2 M.Tech V.L.S.I. K.D.K.College of Engineering,

More information

Ignition and monitoring technique for plasma processing of multicell superconducting radio frequency cavities

Ignition and monitoring technique for plasma processing of multicell superconducting radio frequency cavities Ignition and onitoring technique for plasa processing of ulticell superconducting radio frequency cavities Marc Doleans Oak Ridge ational Laboratory, Oak Ridge, Tennessee 3783, USA E ail: doleans@ornl.gov

More information

ABSTRACT 1. INTRODUCTION

ABSTRACT 1. INTRODUCTION Adaptive characterization of laser daage fro sparse defects Sa Richan *, Alexander R. Martin, Quentin Turchette and Trey Turner RO, 555 Airport Blvd., Boulder, CO, USA 831 ABSTRACT Standard techniques

More information