THREE CHANNELS ANALYSIS SYSTEM FOR ELECTRICAL POWER SYSTEM DISTURBANCES MEASUREMENT
|
|
- Eileen Poole
- 5 years ago
- Views:
Transcription
1 BULETINUL INSTITUTULUI POLITEHNIC IAŞI TOMUL LII (LVI), FASC. 5, 2006 ELECTROTEHNICĂ, ENERGETICĂ, ELECTRONICĂ THREE CHANNELS ANALYSIS SYSTEM FOR ELECTRICAL POWER SYSTEM DISTURBANCES MEASUREMENT BY *CIPRIAN DUGHIR and *GABRIEL GĂŞPĂRESC Abstract. This paper is focused on how to reduce the amplitude of the electrical disturbances which appears in the electrical power systems to a low voltage supported by the acquisition boards. The signal from the electrical power system has many types of disturbances, one of them with amplitudes above 10kV. The main idea of this material is that the signal from the electrical power system to be split in 3 ways, each way heaving a different division factor. The tree signals after division process is applied each of them to an input of the data acquisition board. Keywords: power system, electrical disturbances, preconditioning circuit, data acquisition. 1. Introduction The method proposed in this paper is focused on how to detect the disturbances without the use of a nonlinear voltage divider. A nonlinear voltage divider is very difficult to build and can introduce errors. This method consists in the use of 3 input channels of the acquisition board, each channel heaving a different division factor. Each channel is then limited to ±10V. The signals from the three channels are then analyzed and if any limitation is found on one of the three channels a decision is made. The presence of the limitation on one channel is a sign that it is possible to heave a disturbance on that channel. Most disturbances detection algorithms use the frequency domain analysis. This type of analysis being a time consumption analysis and in most of the cases the analysis can not be done in real time, for this purpose it was used the time domains analyze. The goal proposed is to monitor and record the disturbances presents in the electrical power system. The disturbances are recorded for further analysis. 2. Circuit description The preconditioning circuit consists in three voltage dividers, each of them heaving their own transfer characteristic. The first voltage divider has the characteristic C 1, the second voltage divider has the characteristic C 2, and the
2 CIPRIAN DUGHIR and GABRIEL GĂŞPĂRESC third voltage divider has the characteristic C 3, described in the figure 2. The signals from the voltage dividers are then applied to an acquisition board and analyzed. For the acquisition of the signal it was used the National Instruments acquisition board NI PCI 6254M with a sample rate of 250Ksample/sec on each channel. Electrical power system network Voltage divider 1/50 ratio Voltage divider 1/200 ratio CH1 CH2 A c q u i s it i o n Voltage divider 1/1000 ratio CH3 B o a r d Fig. 1.- Preconditioning circuit diagram. If any disturbance is found in the first channel, the signal is tested to see if the signal was limited or not. In the signal was not limited, the disturbance has the amplitude smaller than 500V. If a limitation is found, the second channel is tested for a limitation, using the same procedure as for the first channel. If no limitation has been found, the disturbances have the amplitude smaller than 2kV. The same procedure is applied for the third channel if the signal of the second channel was limited. U out C 1 C 2 10V C 3 500V 2000V 10000V U in Fig. 2.- Transfer function of the voltage dividers.
3 BUL. INST. POLIT. IAŞI, TOMUL LII (LVI), FASC. 5 In the figure 3, is presented a signal with a spike disturbance with amplitude about 9kV, split in three channels using the method proposed and then applied to the data acquisition board. In the first and second channel it can be observed a limitation of the signal. In the third channel, no limitation can be found, so the signal from the third channel can be recorded for further analysis. 10v U CH1 t 10v U CH2 t 10v U CH3 t Fig. 3.- Spike disturbance over imposed to the signal. The algorithm of detecting the disturbances is presented in the figure 4. The first channel is always analyzed with the methods presented in [1] and [2]. If any disturbances are found, the samples for all three channels is analyzed and checked for limitation. If a limitation is found on any of the three channels, is then checked the channel with the lower amplitude and without limitation and this channel is then recorded. The goal is to record a signal with a maximum dynamic range. It s not necessarily to save all three channels because if, for example, a disturbance with the amplitude higher than 10kV is applied at the input of the system, in all three channels can be found limitations of the signal. The signal which is more accurate and reflects the reality is the signal on the third channel. The most important disturbances in this case is the disturbance with higher amplitude because their high energy. In the first and second channel may or may not be found disturbances with smaller amplitudes. In special cases it is useful to record the signals from all three channels; this is the case in which among the high voltage spike can be found disturbance with small amplitude around 220V. For high accuracy analysis is recommended to record all three channels and analyze the signal later.
4 CIPRIAN DUGHIR and GABRIEL GĂŞPĂRESC The system record the entire period of the signal in which is fond the disturbances. This method of signal preconditioning and analysis can be used alone for detecting the singular and symmetrical disturbances in the electrical power system with the amplitude over 500V. The method is simple: the signal from the first channel is analyzed, and if any disturbances with the amplitude over 500V are over imposed to the signal, then a limitation appears on the first channel signal. Electrical power network Acquisition board 3 Signal analysis algorithm Analyze one sample for each channel 3 Channel 1 voltage limit? no yes Decision block Channel 2 voltage limit? no yes Channel 3 voltage limit? no Record signal yes Fig. 4.- Diagram of the algorithm for detecting and monitoring the disturbances. The presence of this limitation is an indication that a disturbance is present in this point. The algorithm is identical for the second and third channel. The presence of the limitation in the signal shape is always an indication of the presence of a disturbance. In this way all disturbances with amplitude higher than 500V can be easily detected. The decision block presented in figure 4 can classify the disturbance depending on their amplitude.
5 BUL. INST. POLIT. IAŞI, TOMUL LII (LVI), FASC Software application The software application is written using Microsoft Visual C++ 6. The main window of the application contains three plots (in the left of the window) which display on-line the three channels of signal. The signal captured presents a disturbance with amplitude of 2.5kV. The first and the second channel present a limitation in their maximum amplitude. In the upper right corner of the window is displayed a period of the signal with the last disturbance found in the first channel to be easily visualized. This image is displayed until a new disturbance is found, and replaced with a new image. Fig. 5.- Main window of the software application for detection and monitoring the disturbances in the electrical power systems The second plot in the right part of the window is the regularity index. This index is a number representing the presence of a disturbance if his value is nonzero as is explained in [1], [2] and [3]. This plot is scrolling from right to left, this means that the last disturbance is displayed in the right of the plot, being a history of the apparition of disturbances. The circular plot in the bottom right corner of the window displays the status of the operations in the circular buffer [1]. The samples from the acquisition board are stored in the circular memory and then are analyzed.
6 CIPRIAN DUGHIR and GABRIEL GĂŞPĂRESC 5. Conclusions The preconditioning circuit presented in this paper is very simple and low cost. The analysis method proposed in this paper can be used alone, or together with other methods of analyze, improving their performance. Using this method together with the method presented in [1], increase the accuracy of detecting the disturbances with amplitudes higher than 500V at 100%. In this case, the computing time increase with 10%, due to the supplementary calculations which are made. Appendix * Politehnica University, Department of Measurement and Optical Electronics, Electronics and Telecomunications, Timişoara, Romania; R E F E R E N C E S 1. Ciprian Dughir, Detecting symmetrical disturbances in electrical power systems, lucrările sesiunii ştiinţifice Doctor Etc 2005, Timişoara, September 22, Traian Jurca, Ciprian Dughir, Monitorizarea perturbaţiilor din reţeaua de joasă tensiune, lucrările sesiunii ştiinţifice Electroenergetica, Sibiu, November Marcello Artioli, Gaetano Pasini, Lorenzo Peretto, Renato Sasdelli, Fiorenzo Fillippetti, Low-Cost DSP-Based Equipment for the Real-Time Detection of Transients in Power Systems, IEEE Transactions on Instrumentation and Measurement vol. 53, no. 4, August Tarlochan S. Sidhu, Accurate Measurement of Power System Frequency Using a Digital Signal Processing Tehnique, IEEE Transactions on Instrumentation and Measurement vol. 48, no. 1, February Giovanni Bucci, Edoardo Fiorucci, Carmine Landi, Digital Measurement Station for Power Quality Analisys in Distributed Environments, IEEE Transactions on Instrumentation and Measurement vol. 52, no. 1, February A.Y. Zayezdny, I. Druckman, Short time measurement of frequency and amplitude in the presence of noise, IEEE Comput. Applicat Power, vol. 10, Apr SISTEM DE ANALIZĂ PE TREI CANALE PENTRU MĂSURAREA PERTURBAŢIILOR DIN SISTEMELE DE DISTRIBUŢIE A ENERGIEI ELECTRICE (Rezumat) Se prezintă un sistem de detectare şi măsurare a perturbaţiilor din sistemele de distribuţie a energiei electrice ce utilizează un sistem de achiziţie de date pe trei canale şi un sistem de precondiţionare a semnalelor construit cu ajutorul a trei divizoare de tensiune cu diferite rapoarte de divizare. Sistemul propus poate fi utilizat şi pentru detectarea perturbaţiilor simetrice şi nesimetrice cu amplitudini mai mari de 500V ce apar în sistemele de distribuţie a energiei electrice.
ASPECTS REGARDING THE ELECTRICAL RESISTIVITY SOFTWARE MEASUREMENTS ON INSULATING MATERIALS USING 6517A HI-R SWEEP TEST PROGRAM
BULETINUL INSTITUTULUI POLITEHNIC DIN IAŞI Publicat de Universitatea Tehnică Gheorghe Asachi din Iaşi Tomul LVII (LXI), Fasc. 4, 2011 SecŃia ELECTROTEHNICĂ. ENERGETICĂ. ELECTRONICĂ ASPECTS REGARDING THE
More informationELECTROSTATIC DISCHARGE E-FIELD SPECTRUM ANALYSIS AND GRAPHICAL INTERPRETATION
BULETINUL INSTITUTULUI POLITEHNIC DIN IAŞI Publicat de Universitatea Tehnică Gheorghe Asachi din Iaşi Tomul LII (LXI), Fasc. 4, 2011 SecŃia ELECTROTEHNICĂ. ENERGETICĂ. ELECTRONICĂ ELECTROSTATIC DISCHARGE
More informationA NOVEL ACTIVE INDUCTOR WITH VOLTAGE CONTROLLED QUALITY FACTOR AND SELF-RESONANT FREQUENCY
BULETINUL INSTITUTULUI POLITEHNIC DIN IAŞI Publicat de Universitatea Tehnică Gheorghe Asachi din Iaşi Tomul LX (LXIV), Fasc. 4, 2014 Secţia ELECTROTEHNICĂ. ENERGETICĂ. ELECTRONICĂ A NOVEL ACTIVE INDUCTOR
More informationANALYSIS OF DISTURBING MAGNETIC FIELD ASSOCIATED WITH ELECTROSTATIC DISCHARGES
BULETINUL INSTITUTULUI POLITEHNIC DIN IAŞI Publicat de Universitatea Tehnică Gheorghe Asachi din Iaşi Tomul LVII (LXI), Fasc. 5, 2011 SecŃia ELECTROTEHNICĂ. ENERGETICĂ. ELECTRONICĂ ANALYSIS OF DISTURBING
More informationEVALUATION OF THE YARN QUALITY CHARACTERISTICS THROUGH SYNTHETIC INDICATORS
BULETINUL INSTITUTULUI POLITEHNIC DIN IAŞI Publicat de Universitatea Tehnică Gheorghe Asachi din Iaşi Tomul LVI (LX), Fasc. 2, 2010 SecŃia TEXTILE. PIELĂRIE EVALUATION OF THE YARN QUALITY CHARACTERISTICS
More informationAN ALGORITHM FOR THE ADAPTIVE CONTROL OF ANTI HAIL MISSILE LAUNCH RAMPS
BULETINUL INSTITUTULUI POLITEHNIC DIN IAŞI Publicat de Universitatea Tehnică Gheorghe Asachi din Iaşi Volumul 64 (68), Numărul 2, 2018 Secţia ELECTROTEHNICĂ. ENERGETICĂ. ELECTRONICĂ AN ALGORITHM FOR THE
More informationD.C. DRIVE SYSTEM USING FOUR-QUADRANT CHOPPER
BULETINUL INSTITUTULUI POLITEHNIC DIN IAŞI Publicat de Universitatea Tehnică Gheorghe Asachi din Iaşi Tomul LIX (LXIII), Fasc. 4, 2013 Secţia ELECTROTEHNICĂ. ENERGETICĂ. ELECTRONICĂ D.C. DRIVE SYSTEM USING
More informationLINEAR VOLTAGE-TO-CURRENT CONVERTER WITH SMALL AREA
BULETINUL INSTITUTULUI POLITEHNIC DIN IAŞI Publicat de Universitatea Tehnică Gheorghe Asachi din Iaşi Tomul LXI (LXV), Fasc. 1, 2015 Secţia ELECTROTEHNICĂ. ENERGETICĂ. ELECTRONICĂ LINEAR VOLTAGE-TO-CURRENT
More informationTHE THICKNESS MEASUREMENT OF WEFT KNITTED STRUCTURES MADE WITH ELASTOMERIC YARNS
BULETINUL INSTITUTULUI POLITEHNIC DIN IAŞI Publicat de Universitatea Tehnică Gheorghe Asachi din Iaşi Tomul LVI (LX), Fasc. 3, 2010 SecŃia TEXTILE. PIELĂRIE THE THICKNESS MEASUREMENT OF WEFT KNITTED STRUCTURES
More informationMASKING THE INSTRUCTIONS OF A MICROCONTROLLER USING A CHAOTIC POWER SUPPLY
BULETINUL INSTITUTULUI POLITEHNIC DIN IAŞI Publicat de Universitatea Tehnică Gheorghe Asachi din Iaşi Tomul LIX (LXIII), Fasc. 1, 2013 Secţia ELECTROTEHNICĂ. ENERGETICĂ. ELECTRONICĂ MASKING THE INSTRUCTIONS
More informationTHE MEASUREMENT OF MAGNETIC FIELD IN TWO POWER DISTRIBUTION SUBSTATIONS
BULETINUL INSTITUTULUI POLITEHNIC DIN IAŞI Publicat de Universitatea Tehnică Gheorghe Asachi din Iaşi Volumul 62 (66), Numărul 4, 2016 Secţia ELECTROTEHNICĂ. ENERGETICĂ. ELECTRONICĂ THE MEASUREMENT OF
More informationSOFTWARE CONTROL USED FOR AC MOTORS
BULETINUL INSTITUTULUI POLITEHNIC DIN IŞI Publicat de Universitatea Tehnică Gheorghe sachi din Iaşi Tomul LVI (LX), Fasc. 3, 2010 Secţia ELECTROTEHNICĂ, ENERGETICĂ, ELECTRONICĂ SOFTWRE CONTROL USED FOR
More informationRESEARCH CONCERNING THE INFLUENCE OF ANGLE OF FILING FROM THE KNIFE BLADES VINDROVERS ON THE MECHANICAL WORK ON CUTTING
BULETINUL INSTITUTULUI POLITEHNIC DIN IAŞI Publicat de Universitatea Tehnică Gheorghe Asachi din Iaşi Tomul LIX (LXIII), Fasc. 2, 13 SecŃia CONSTRUCłII DE MAŞINI RESEARCH CONCERNING THE INFLUENCE OF ANGLE
More informationLINEAR CURRENT-TO-FREQUENCY CONVERTER WITH WIDE OUTPUT RANGE
BULETINUL INSTITUTULUI POLITEHNIC DIN IAŞI Publicat de Universitatea Tehnică Gheorghe Asachi din Iaşi Volumul 62 (66), Numărul 1, 2016 Secţia ELECTROTEHNICĂ. ENERGETICĂ. ELECTRONICĂ LINEAR CURRENT-TO-FREQUENCY
More informationCMOS DELAY CELL WITH LARGE TUNING RANGE
BULETINUL INSTITUTULUI POLITEHNIC DIN IAŞI Publicat de Universitatea Tehnică Gheorghe Asachi din Iaşi Volumul 62 (66), Numărul 2, 2016 Secţia ELECTROTEHNICĂ. ENERGETICĂ. ELECTRONICĂ CMOS DELAY CELL WITH
More informationFINITE ELEMENT METHOD MODELING OF BRUSHLESS DC SERVOMOTOR WITH FRACTIONAL NUMBER OF SLOTS PER POLE
BULETINUL INSTITUTULUI POLITEHNIC DIN IAŞI Publicat de Universitatea Tehnică Gheorghe Asachi din Iaşi Tomul LVIII (LXII), Fasc. 4, 2012 Secţia ELECTROTEHNICĂ. ENERGETICĂ. ELECTRONICĂ FINITE ELEMENT METHOD
More informationUSING SERIAL INDUSTRIAL ROBOTS IN CNC MILLING PROCESESS
BULETINUL INSTITUTULUI POLITEHNIC DIN IAŞI Publicat de Universitatea Tehnică Gheorghe Asachi din Iaşi Tomul LXI (LXV), Fasc. 3, 2015 Secţia CONSTRUCŢII DE MAŞINI USING SERIAL INDUSTRIAL ROBOTS IN CNC MILLING
More informationEXPERIMENTAL RESULTS REGARDING STRUCTURAL RESPONSE OF BOLTED AND HYBRID CONNECTIONS FOR PULTRUDED ELEMENTS
BULETINUL INSTITUTULUI POLITEHNIC DIN IAŞI Publicat de Universitatea Tehnică Gheorghe Asachi din Iaşi Tomul LIX (LXIII), Fasc. 6, 2013 Secţia CONSTRUCŢII. ARHITECTURĂ EXPERIMENTAL RESULTS REGARDING STRUCTURAL
More informationMEETING THE RECENT REQUESTS ORIGINATED BY THE INCOMING EDITION OF EN
BULETINUL INSTITUTULUI POLITEHNIC IAŞI TOMUL LII (LVI), FASC. 5, 2006 ELECTROTEHNICĂ, ENERGETICĂ, ELECTRONICĂ MEETING THE RECENT REQUESTS ORIGINATED BY THE INCOMING EDITION OF EN 61000-4-2 BY *A. SĂLCEANU,
More informationMATHEMATIC MODEL AND APLICATION FOR HARMONIC STEADY-STATE OF THE POWER TRANSMISSION LINE
BULETINUL INSTITUTULUI POLITEHNIC DIN IAŞI Publicat de Universitatea Tehnică Gheorghe Asachi din Iaşi Tomul LXI (LXV), Fasc. 1, 015 Secţia ELECTROTEHNICĂ. ENERGETICĂ. ELECTRONICĂ MATHEMATIC MODEL AND APLICATION
More informationDetection of fault location on transmission systems using Wavelet transform
International Academic Institute for Science and Technology International Academic Journal of Science and Engineering Vol. 3, No. 4, 2016, pp. 23-32. ISSN 2454-3896 International Academic Journal of Science
More informationDISTORTING STATE ANALYSIS IN ELECTRIC ENERGY DISTRIBUTION NETWORKS
BLETINL INSTITTLI POLITEHNIC DIN IAŞI Publicat de niversitatea Tehnică Gheorghe Asachi din Iaşi Tomul LVIII (LXII), Fasc. 4, 2012 Secţia ELECTROTEHNICĂ. ENERGETICĂ. ELECTRONICĂ DISTORTING STATE ANALYSIS
More informationCOMPARISON OF CONCENTRATED AND DISTRIBUTED WINDING IN TERM OF THE MAGNETIC FIELDS
BULETINUL INSTITUTULUI POLITEHNIC DIN IAŞI Publicat de Universitatea Tehnică Gheorghe Asachi din Iaşi Tomul LX (LXIV), Fasc. 1, 2014 Secţia ELECTROTEHNICĂ. ENERGETICĂ. ELECTRONICĂ COMPARISON OF CONCENTRATED
More informationDETERMINING ADDITIONAL POWER AND ENERGY LOSSES IN LOW VOLTAGE ELECTRICITY DISTRIBUTION NETWORKS OPERATED IN DISTORTED AND UNBALANCED OPERATION STATES
BULETINUL INSTITUTULUI POLITEHNIC DIN IAŞI Publicat de Universitatea Tehnică Gheorghe Asachi din Iaşi Volumul 63 (67), Numărul 1, 017 Secţia ELECTROTEHNICĂ. ENERGETICĂ. ELECTRONICĂ DETERMINING ADDITIONAL
More informationOUTER GATE AUTOMATION USING MICROCONTROLLERS AND RADIO FREQUENCY COMMUNICATION
BULETINUL INSTITUTULUI POLITEHNIC DIN IAŞI Publicat de Universitatea Tehnică Gheorghe Asachi din Iaşi Tomul LVII (LXI), Fasc. 4, 2011 SecŃia ELECTROTEHNICĂ. ENERGETICĂ. ELECTRONICĂ OUTER GATE AUTOMATION
More informationCMOS SCHMITT TRIGGER WITH CURRENT-CONTROLLED HYSTERESIS
BULETINUL INSTITUTULUI POLITEHNIC DIN IAŞI Publicat de Universitatea Tehnică Gheorghe Asachi din Iaşi Tomul LXI (LXV), Fasc., 015 Secţia ELECTROTEHNICĂ. ENERGETICĂ. ELECTRONICĂ CMOS SCHMITT TRIGGER WITH
More informationVIRTUAL INSTRUMENTATION IN THE DRIVE SUBSYSTEM MONITORING OF A MOBIL ROBOT WITH GESTURE COMMANDS
BULETINUL INSTITUTULUI POLITEHNIC DIN IAŞI Publicat de Universitatea Tehnică Gheorghe Asachi din Iaşi Tomul LIV (LVIII), Fasc. 3-4, 2008 Secţia AUTOMATICĂ şi CALCULATOARE VIRTUAL INSTRUMENTATION IN THE
More informationOPTIMIZING TOOLS DIAMETERS AND TOOL PATH STYLE TO IMPROVE TIME MACHINING
BULETINUL INSTITUTULUI POLITEHNIC DIN IAŞI Publicat de Universitatea Tehnică Gheorghe Asachi din Iaşi Tomul LXI (LXV), Fasc. 4, 2015 Secţia CONSTRUCŢII DE MAŞINI OPTIMIZING TOOLS DIAMETERS AND TOOL PATH
More informationClass D Power Amplifiers
Class D Power Amplifiers A Class D amplifier is a switching amplifier based on pulse-width modulation (PWM) techniques Purpose: high efficiency, 80% - 95%. The reduction of the power dissipated by the
More informationINFLUENCE FACTORS ON THE TRANSMITTED OVERVOLTAGES FROM HIGH VOLTAGE TO LOW VOLTAGE NETWORKS
U.P.B. Sci. Bull., Series C, Vol. 72, Iss. 1, 21 ISSN 1454-234x INFLUENCE FACTORS ON THE TRANSMITTED OVERVOLTAGES FROM HIGH VOLTAGE TO LOW VOLTAGE NETWORKS Marian COSTEA 1, Bogdan NICOARĂ 2 În reţelele
More informationCONSIDERATIONS REGARDING THE SMALL POWER
C CONSIDERATIONS REGARDING THE SMALL POWER STATION S CONNECTION AT THE LOW VOLTAGE NETWORKS Eng. Sin BALAUTA,PhD 1, Eng. Stelian BULIGA 1, Eng. Laurentiu UNGUREANU 1, Eng. Marius IUZIC 1 1 E.ON MOLDOVA
More informationNEURAL NETWORKS USED IN THE EVALUATION OF POWER QUALITY
ACTA UNIVERSITATIS CIBINIENSIS TECHNICAL SERIES Vol. LXVI 2015 DOI: 10.1515/aucts-2015-0054 NEURAL NETWORKS USED IN THE EVALUATION OF POWER QUALITY VOLOSCIUC Sorin Dan Faculty of Engineering, Department
More informationDIGITAL CONTROL OF A BRUSHLESS DC SERVOMOTOR ELECTRICAL DRIVE SYSTEMS CLOSED-LOOP CONTROL
BULETINUL INSTITUTULUI POLITEHNIC DIN IAŞI Publicat de Universitatea Tehnică Gheorghe Asachi din Iaşi Tomul LIX (LXIII), Fasc. 3, 2013 Secţia ELECTROTEHNICĂ. ENERGETICĂ. ELECTRONICĂ DIGITAL CONTROL OF
More informationDRIVEN ASYNCHRONOUS MOTORS
STUDY OF ELECTROMAGNETIC ETIC INTERFERENCE IN INVERTER DRIVEN ASYNCHRONOUS MOTORS STUDY OF ELECTROMAGNETIC ETIC INTERFERENCE IN INVERTER DRIVEN ASYNCHRONOUS MOTORS Eng. Ioan ŢILEA PhD-student 1, Prof.
More informationA MATLAB Graphical User Interface Dedicated to the Optimal Design of the High Power Induction Motor with Heavy Starting Conditions
Maria Brojboiu, Virginia Ivanov ANALELE UNIVERSITĂŢII EFTIMIE MURGU REŞIŢA ANUL XXI, NR. 2, 2014, ISSN 1453-7397 A MATLAB Graphical User Interface Dedicated to the Optimal Design of the High Power Induction
More informationSINGULAR PERTURBATION DETECTION USING WAVELET FUNCTION REPRESENTATION
U.P.B. Sci. Bull., Series C, Vol. 7, No., 8 ISSN 454-34x SINGULAR PERTURBATION DETECTION USING WAVELET FUNCTION REPRESENTATION Dan OLARU, Mihai Octavian POPESCU Calitatea distribuţiei energiei electrice
More informationMODELING THE ELECTROMAGNETIC POLLUTION OF THE ELECTRIC ARC FURNACES
MODELING THE ELECTROMAGNETIC POLLUTION OF THE ELECTRIC ARC FURNACES MANUELA PĂNOIU 1, CAIUS PĂNOIU 2, IOAN ŞORA 3 Key words: Power quality, Electromagnetic pollution, Harmonics, Electric arc furnace (EAF),
More informationSINGLE-PHASE AC-AC CONVERTER
BULETINUL INSTITUTULUI POLITEHNIC IN IAŞI Publicat de Universitatea Tehnică Gheorghe Asachi din Iaşi Volumul 62 (66), Numărul 1, 2016 Secţia ELECTROTEHNICĂ. ENERGETICĂ. ELECTRONICĂ SINGLE-PHASE AC-AC CONVERTER
More informationMETHODS IN OPERATIONAL TRANSMISSION POWER GRID
METHODS IN OPERATIONAL TRANSMISSION POWER GRID DANIEL MORAR, Romania NC Transelectrica, Sibiu Transmission Subsidiary, 154 Ştefan cel Mare str., Sibiu, 550321, +40269207142, daniel.morar@transelectrica.ro
More informationSystem and equipment for measurement, registration of parameters and analyse of the quality of the electric energy
System and equipment for measurement, registration of parameters and analyse of the quality of the electric energy Gabriel VLADUT*, Ion PURCARU **, Petre-Marian NICOLAE,*** Camelia COJOCARU* * IPA, Craiova,
More informationFLAX AND HEMP NATURAL ALTERNATIVES IN THE FIELD OF MEDICAL TEXTILES
BULETINUL INSTITUTULUI POLITEHNIC DIN IAŞI Publicat de Universitatea Tehnică Gheorghe Asachi din Iaşi Tomul LVI (LX), Fasc., 00 SecŃia TEXTILE. PIELĂRIE FLAX AND HEMP NATURAL ALTERNATIVES IN THE FIELD
More informationMEASUREMENT OF THE PARAMETERS FOR ELECTRIC ENERGY QUALITY. (1) Gabriel VLADUT, (2) Petre-Marian NICOLAE
MEASUREMENT OF THE PARAMETERS FOR ELECTRIC ENERGY QUALITY (1) Gabriel VLADUT, (2) Petre-Marian NICOLAE (1)IPA CIFATT Craiova office@ipacv.ro, (2) University of Craiova, pnicolae@elth.ucv.ro Abstract The
More informationVOLTAGE QUALITY ANALYSIS IN LOW VOLTAGE PUBLIC ELECTRIC DISTRIBUTION NETWORKS OPERATED IN DISTORTED AND UNBALANCED CONDITIONS
BULETINUL INSTITUTULUI POLITEHNIC DIN IAŞI Publicat de Universitatea Tehnică Gheorghe Asachi din Iaşi Volumul 62 (66), Numărul 2, 2016 Secţia ELECTROTEHNICĂ. ENERGETICĂ. ELECTRONICĂ VOLTAGE QUALITY ANALYSIS
More informationDETECTION OF ERRONEOUS OPERATION IN TTL INTEGRATED CIRCUITS USING MODULUS FUNCTIONS OF NOISE MARGINS
DETECTION OF ERRONEOUS OPERATION IN TTL INTEGRATED CIRCUITS USING MODULUS FUNCTIONS OF NOISE MARGINS Mircea Iulian PORTEANU Department of Power Engineering, University of Oradea, Oradea, Romania Department
More informationELECTROMAGNETIC POLLUTION PRODUCED BY THE INDUSTRIAL FREQUENCY CRUCIBLE INDUCTION FURNACES IN THE POWER SUPPLY NETWORK
1 2 ELECTROMAGNETIC POLLUTION PRODUCED BY THE INDUSTRIAL FREQUENCY CRUCIBLE INDUCTION FURNACES IN THE POWER SUPPLY NETWORK Angela IAGĂR 1, Ioan ŞORA 2, Caius PĂNOIU 1, Cristian ABRUDEAN 1 1 POLITEHNICA
More informationCOMPARISON OF PITCH CONTROL SYSTEM FOR AN UNMANNED FREE-SWIMMING SUBMERSIBLE VEHICLE WITH PD CONTROLLER AND LINEAR QUADRATIC REGULATOR USING MATLAB
BULETINUL INSTITUTULUI POLITEHNIC DIN IAŞI Publicat de Universitatea Tehnică Gheorghe Asachi din Iaşi Tomul LX (LXIV), Fasc. 3-4, 2014 SecŃia AUTOMATICĂ şi CALCULATOARE COMPARISON OF PITCH CONTROL SYSTEM
More informationResearches Regarding the Pollution with Harmonics by the Frequency Converters
ANALELE UNIVERSITĂłII EFTIMIE MURGU REŞIłA ANUL XV, NR., 008, ISSN 453-7394 Ioan Ruja, Florin Breaban, Ladislau Augustinov, Daniel Jurca Researches Regarding the Pollution with Harmonics by the Frequency
More informationVIRTUAL INSTRUMENT FOR POWER QUALITY ASSESSMENT
VIRTUAL INSTRUMENT FOR POWER QUALITY ASSESSMENT GHEORGHE Daniel*, CHINDRIS Mircea**, CZIKER Andrei***, VASILIU Răzvan* *Ph.D. student, **Professor, *** Assistant Professor Technical University of Cluj
More informationTHE USE OF PASSIVE CURRENT LIMITERS, A MODERN ALTERNATIVE AND EFFICIENT ALTERNATIVE TO REACTORS
THE USE OF PASSIVE CURRENT LIMITERS, A MODERN ALTERNATIVE AND EFFICIENT ALTERNATIVE TO REACTORS DEZSI A.B.*, ROSCA I.**, VUC G.***, DOZESCU S.I.* *FFEE Electrica Supplying Transilvania Sud, Brasov, **FDEE
More informationPOWER AMPLIFIER MODELING FOR MODERN COMMUNICATION SYSTEMS
U.P.B. Sci. Bull., Series C, Vol. 7, Iss., 010 ISSN 1454-34x POWER AMPLIFIER MODELING FOR MODERN COMMUNICATION SYSTEMS Ovidiu LEULESCU 1, Adrian TOADER, Teodor PETRESCU 3 Lucrarea propune o nouă metodă
More informationPASSIVE AND ACTIVE COMPENSATIONS FOR CURRENT TRANSFORMERS
SINTEZE PASSIVE AND ACTIVE COMPENSATIONS FOR CURRENT TRANSFORMERS Costin CEPIŞCĂ*, Sorin Dan GRIGORESCU*, Stergios GANATSIOS**, Nikolaos G. BARDIS*** *UNIVERSITATEA POLITEHNICA BUCUREŞTI, ** TECHNICAL
More informationUpdating the Nomographical Diagrams for Dimensioning the Concrete Slabs
Acta Technica Napocensis: Civil Engineering & Architecture Vol. 57, No. 1 (2014) Journal homepage: http://constructii.utcluj.ro/actacivileng Updating the Nomographical Diagrams for Dimensioning the Concrete
More informationBIODEGRADABLE YARNS FOR WEAVES USED FOR COMPOSITE MATERIALS
BULETINUL INSTITUTULUI POLITEHNIC DIN IAŞI Publicat de Universitatea Tehnică Gheorghe Asachi din Iaşi Tomul LVI (LX), Fasc. 2, 2010 SecŃia TEXTILE. PIELĂIE BIODEGADABLE YANS FO WEAVES USED FO COMPOSITE
More informationSPEED CONTROL OF DC MOTOR USING FOUR-QUADRANT CHOPPER AND BIPOLAR CONTROL STRATEGY
SPEED CONTROL OF DC MOTOR USING FOUR-QUADRANT CHOPPER AND BIPOLAR CONTROL STRATEGY TEGY Lecturer Eng. Ciprian AFANASOV PhD, Assoc. Prof. Eng. Mihai RAŢĂ PhD, Assoc. Prof. Eng. Leon MANDICI PhD Ştefan cel
More informationUPON ACHIEVEMENT OF THE USUAL FUNCTIONS OF TIME WITH PS-3 PLC KLÖCKNER- MOELLER
UPON ACHIEVEMENT OF THE USUAL FUNCTIONS OF TIME WITH PS-3 PLC KLÖCKNER- MOELLER Iosif Popa, Assoc. Prof. PhD. Eng., Faculty of Engineering Hunedoara, Politehnica University Timişoara Gabriel Nicolae Popa,,
More informationDynamic stability of power systems
Dynamic stability of power systems Dr Rafael Segundo Research Associate Zurich University of Applied Science segu@zhaw.ch SCCER School- Shaping the Energy Transition Engelberg, 20 October 2017 Agenda Fundamentals
More informationFault Detection Using Hilbert Huang Transform
International Journal of Research in Advent Technology, Vol.6, No.9, September 2018 E-ISSN: 2321-9637 Available online at www.ijrat.org Fault Detection Using Hilbert Huang Transform Balvinder Singh 1,
More informationFinite Element Analysis of a Single-Phase Alternating Current Meter
ANALELE UNIVERITĂłII EFTIMIE MURGU REŞIłA ANUL XIX, NR. 1, 2012, IN 1453-7397 Mihaela Răduca, Aki Uyetani, Florin Florea, orin Florea Finite Element Analysis of a ingle-phase Alternating Current Meter
More informationEficiența energetică în industria românească
Eficiența energetică în industria românească Creșterea EFICIENȚEI ENERGETICE în procesul de ardere prin utilizarea de aparate de analiză a gazelor de ardere București, 22.09.2015 Karsten Lempa Key Account
More informationON THE TRANSIENTS OPTIMIZATION AND THE POWER FACTOR CORRECTION OF THE STATIC CONVERTERS
U.P.B. Sci. Bull., Series C, Vol. 70, No. 1, 2008 ISSN 1454-234x ON THE TRANSIENTS OPTIMIZATION AND THE POWER FACTOR CORRECTION OF THE STATIC CONVERTERS N. FULGA 1, M. O. POPESCU 2, Claudia POPESCU 3 Obiectivul
More informationANTICOLLISION ALGORITHM FOR V2V AUTONOMUOS AGRICULTURAL MACHINES ALGORITM ANTICOLIZIUNE PENTRU MASINI AGRICOLE AUTONOME TIP V2V (VEHICLE-TO-VEHICLE)
ANTICOLLISION ALGORITHM FOR VV AUTONOMUOS AGRICULTURAL MACHINES ALGORITM ANTICOLIZIUNE PENTRU MASINI AGRICOLE AUTONOME TIP VV (VEHICLE-TO-VEHICLE) 457 Florin MARIAŞIU*, T. EAC* *The Technical University
More informationSPREADING CODES 1. INTRODUCTION. Ion POPA Societatea Română de Televiziune Studioul Teritorial Iaşi
SPREADING CODES Ion POPA Societatea Română de Televiziune Studioul Teritorial Iaşi REZUMAT. În această lucrare am realizat un studiu al codurilor de împrăştiere pe baza caruia am conceput mai multe programe
More informationSolutii avansate pentru testarea si diagnoza masinilor industriale.
Solutii avansate pentru testarea si diagnoza masinilor industriale 15 ani de activitate in domeniul procesarii numerice a semnalelor Solutii de inalta acuratete pentru analiza sunetelor, vibratiilor si
More informationDynamic Analysis of Electronic Devices' Power Signatures
Dynamic Analysis of Electronic Devices' Power Signatures Marius Marcu Faculty of Automation and Computing Engineering Politehnica University of Timisoara Timisoara, Romania marius.marcu@cs.upt.ro Cosmin
More informationPublication List. 1. List of Relevant Articles (all are in ISI foreign journals): 2. Doctoral Thesis:
Publication List 1. List of Relevant Articles (all are in ISI foreign journals): 1. D. Belega, D. Petri, Accuracy Analysis of the Multicycle Synchrophasor Estimator Provided by the Interpolated DFT Algorithm,
More informationUsing dspace in the Shunt Static Compensators Control
Annals of the University of Craiova, Electrical Engineering series, No. 37, 3; ISSN 84-485 Using dspace in the Shunt Static Compensators Control Vlad Suru, Mihaela Popescu, Alexandra Pătraşcu Department
More informationRAIL TO RAIL OP AMP AMPLIFIER WITH UNIPOLAR SUPPLY
RAIL TO RAIL OP AMP AMPLIFIER WITH UNIPOLAR SUPPLY I. OBJECTIVES a) Understanding the functioning of a railtorail OP AMP amplifier. b) Understanding the use of a railtorail OP AMP amplifier with unipolar
More informationBuletinul AGIR nr. 3/2012 iunie-august. Assis. Eng. Ciprian AFANASOV PhD. University "Ştefan cel Mare" Suceava
STEP-DOWN VOLTAGE CONVERTER FOR STUDENTS STUDY STEP-DOWN VOLTAGE CONVERTER FOR STUDENTS STUDY Assis. Eng. Ciprian AFANASOV PhD University "Ştefan cel Mare" Suceava REZUMAT. În cadrul lucrării s-au s studiat
More informationLISTA Lucrărilor ştiinţifice şi didactice elaborate şi publicate
LISTA Lucrărilor ştiinţifice şi didactice elaborate şi publicate A. Cărţi, manuale universitare, culegeri de probleme şi îndrumătoare publicate în edituri cu ISBN 1. Andrei Kiraly, Monica Bălcău, Grafică
More informationANALYZING OF SWITCHING PROPERTIES OF IGBT TRANSISTOR USING PSCAD-EMTDC SIMULATION PROGRAM
2 ANALYZING OF SWITCHING POPETIES OF IGBT TANSISTO USING PSCAD-EMTDC SIMULATION POGAM CUNŢAN Corina Daniela BACIU Ioan UNIVESITATEA POLITEHNICA TIMIŞOAA, FACULTATEA DE INGINEIE HUNEDOAA ABSTACT In this
More informationWavelet Transform Based Islanding Characterization Method for Distributed Generation
Fourth LACCEI International Latin American and Caribbean Conference for Engineering and Technology (LACCET 6) Wavelet Transform Based Islanding Characterization Method for Distributed Generation O. A.
More informationEQUIPMENT FOR THE ELECTRICAL ENERGY MEASUREMENT STUDY AT DIFFERENT TYPES OF CONSUMERS
International Journal of Arts & Sciences, CD-ROM. ISSN: 1944-6934 :: 4(19):89 97 (2011) Copyright c 2011 by InternationalJournal.org EQUIPMENT FOR THE ELECTRICAL ENERGY MEASUREMENT STUDY AT DIFFERENT TYPES
More informationAUTOMATED MEASUREMENT SETUP FOR MICROCONTROLLERS AND MAGNETIC SENSORS
U.P.B. Sci. Bull., Series C, Vol. 75, Iss. 1, 2013 ISSN 1454-234x AUTOMATED MEASUREMENT SETUP FOR MICROCONTROLLERS AND MAGNETIC SENSORS Răzvan DOCHIA 1, Daniela BOGDAN 2, Corneliu BURILEANU 3 În această
More informationProceedings of the 10th WSEAS International Conference on FUZZY SYSTEMS
A Fuzzy Approach sed in Expert ystem for Optimal Neutral Grounding Toader Dumitru, Lustrea Bucur *, Blaj Constantin, Borlea Ioan *, Haragus tefan Department of Physical Foundation of Engineering, * Department
More informationList of the works. 1. The most important works
Prof. eng. PhD Sorin ENACHE List of the works 1. The most important works 1. ENACHE, S., VLAD, I.: Induction machine. Basic notions. Dynamic regimes (in romanian), Ed. Universitaria Craiova, 2002, ISBN:
More informationCOMPOSITE MATERIALS FOR ELECTROMAGNETIC SHIELDING
U.P.B. Sci. Bull., Series B, Vol. 78, Iss. 2, 2016 ISSN 1454-2331 COMPOSITE MATERIALS FOR ELECTROMAGNETIC SHIELDING Ionut BALAN 1, Cristian MORARI 2, Alexandru Eros PATROI 3 Nowadays, composite materials
More informationAdaptive Beamforming Applied for Signals Estimated with MUSIC Algorithm
Buletinul Ştiinţific al Universităţii "Politehnica" din Timişoara Seria ELECTRONICĂ şi TELECOMUNICAŢII TRANSACTIONS on ELECTRONICS and COMMUNICATIONS Tom 57(71), Fascicola 2, 2012 Adaptive Beamforming
More informationPropuneri pentru teme de licență
Propuneri pentru teme de licență Departament Automatizări Eaton România Instalație de pompare cu rotire în funcție de timpul de funcționare Tablou electric cu 1 pompă pilot + 3 pompe mari, cu rotirea lor
More informationVersionare - GIT ALIN ZAMFIROIU
Versionare - GIT ALIN ZAMFIROIU Controlul versiunilor - necesitate Caracterul colaborativ al proiectelor; Backup pentru codul scris Istoricul modificarilor Terminologie și concepte VCS Version Control
More informationA COMPARATIVE ANALYSIS IN TERMS OF CONDUCTED SUSCEPTIBILITY OF PC-BASED DATA ACQUISITION SYSTEMS
XVII IMEKO World Congress Metrology in the 3rd Millennium June 22 27, 2003, Dubrovnik, Croatia A COMPARATIVE ANALYSIS IN TERMS OF CONDUCTED SUSCEPTIBILITY OF PC-BASED DATA ACQUISITION SYSTEMS Giovanni
More informationCristina ENULESCU * ABSTRACT
Cristina ENULESCU * REZUMAT un interval de doi ani un buletin statistic privind cele mai importante aspecte ale locuirii, în statele perioada 1995-2004, de la 22,68 milioane persoane la 21,67 milioane.
More informationFACULTATEA DE INGINERIE ELECTRICĂ. Ing. Lucian Diodiu. PHD Thesis ABSTRACT
FACULTATEA DE INGINERIE ELECTRICĂ Ing. Lucian Diodiu PHD Thesis ABSTRACT DETERMINATION OF ENERGY LOSSES IN MEDIUM VOLTAGE TRANSPORT AND DISTRIBUTION ELECTRICAL NETWORKS Thesis advisor, Prof.dr.ing. Nicolae
More informationSAG MITTIGATION TECHNICS USING DSTATCOMS
Eng. Adrian-Alexandru Moldovan, PhD student Tehnical University of Cluj Napoca. REZUMAT. Căderile de tensiune sunt una dintre cele mai frecvente probleme care pot apărea pe o linie de producţie. Căderi
More informationAn Adaptive Protection Scheme for Optimal Overcurrent Relay Coordination in Interconnected Power Systems
From the SelectedWorks of Almoataz Youssef Abdelaziz March, 2000 An Adaptive Protection Scheme for Optimal Overcurrent Relay Coordination in Interconnected Power Systems Almoataz Youssef Abdelaziz Available
More informationInstantaneous Frequency and its Determination
Buletinul Ştiinţific al Universităţii "Politehnica" din Timişoara Seria ELECTRONICĂ şi TELECOUNICAŢII TRANSACTIONS on ELECTRONICS and COUNICATIONS Tom 48(62), Fascicola, 2003 Instantaneous Frequency and
More informationMODERN INSTRUMENTS FOR ELECTRICITY MEASUREMENT UNDER PRESENT SITUATION
U.P.B. Sci. Bull., Series C, Vol. 76, Iss. 4, 2014 ISSN 2286-3540 MODERN INSTRUMENTS FOR ELECTRICITY MEASUREMENT UNDER PRESENT SITUATION Eugenia ZAHAROVITS 1 This paper refers to present concerns for the
More informationLISTA COMPLETĂ A LUCRĂRILOR ELABORATE
LISTA COMPLETĂ A LUCRĂRILOR ELABORATE I. TEZA DE DOCTORAT (T) T1. A.A. Dobre, Metode de investigație în analiza unor fenomene cuplate de inginerie medicală, cordonator Prof. Dr. Ing. Alexandru Morega,
More informationProgramming PC-Based Multi-Function Oscilloscopes: A User-Friendly Approach to Rapid Prototyping of Spectral Analysis Code
Programming PC-Based Multi-Function Oscilloscopes: A User-Friendly Approach to Rapid Prototyping of Spectral Analysis Code FABRIZIO RUSSO, FRANCESCO TRAVAIN Department of Engineering and Architecture University
More informationCHASSIS DYNAMOMETER TORQUE CONTROL SYSTEM DESIGN BY DIRECT INVERSE COMPENSATION. C.Matthews, P.Dickinson, A.T.Shenton
CHASSIS DYNAMOMETER TORQUE CONTROL SYSTEM DESIGN BY DIRECT INVERSE COMPENSATION C.Matthews, P.Dickinson, A.T.Shenton Department of Engineering, The University of Liverpool, Liverpool L69 3GH, UK Abstract:
More informationMARKET CONDITIONS, EDUCATION AND LEGISLATION NEEDED TO PROMOTE CONSTRUCTION OF HIGH PERFORMANCE IN ROMANIA
BULETINUL INSTITUTULUI POLITEHNIC DIN IAŞI Publicat de Universitatea Tehnică Gheorghe Asachi din Iaşi Tomul LIX (LXIII), Fasc. 5, 2013 Secţia CONSTRUCŢII. ARHITECTURĂ MARKET CONDITIONS, EDUCATION AND LEGISLATION
More informationEffect of Fault Resistance and Load Encroachment on Distance Relay- Modeling and Simulation PSCAD/EMTDC
Effect of Fault Resistance and Load Encroachment on Distance Relay- Modeling and Simulation PSCAD/EMTDC Naitik Trivedi 1, Vatsal Shah 2, Vivek Pandya 3 123 School of Technology, PDPU, Gandhinagar, India
More informationPower Quality Analysis for Connecting a PV Park to the Power Network in Order to Obtain the Certificate of Conformity
Power Quality Analysis for Connecting a PV Park to the Power Network in Order to Obtain the Certificate of Conformity Phd. Eng. Sorin NISTOR SFDEE Electrica Distributie Transilvania Sud SA Brasov, Romania
More informationDC-DC CONVERTOR STRUCTURE RE FOR ENERGY MANAGEMENT ON (HYBRID) ELECTRIC VEHICLE
THE WELDING TECHNOLOGY INFLUENCE ON THE DOUBLE T GIRDER BEAMS BUCKLING (Paper Title) DC-DC CONVERTOR STRUCTURE RE FOR ENERGY MANAGEMENT ON (HYBRID) ELECTRIC VEHICLE Assist. Eng. Daniel-Adrian STICEA, PhD
More informationLow Glitch Current-Steering DAC with Split Input Code
Proceedings of the 6th WSEAS Int. Conf. on Electronics, Hardware, Wireless and Optical Communications, Corfu Island, Greece, February 16-19, 27 4 Low Glitch Current-Steering DAC with Split Input Code MIRCEA
More informationCONDITIONING THE LOW LEVEL SIGNALS FROM A VOLTAGE CONTROLLER
U.P.B. Sci. Bull., Series C, Vol. 68, No. 1, 2006 CONDITIONING THE LOW LEVEL SIGNALS FROM A VOLTAGE CONTROLLER Simona MORARU, C. VOINA, Andreea COSAC Cu ajutorul unui program de instrumentaţie virtuală
More informationPower Quality Control on The Romanian Energy Market
Power Quality Control on The Romanian Energy Market A. S.JUDE 1, P. EHEGARDNER 2, P. ANDEA 3, D. VATAU 4, F.M. FRIGURA-ILIASA 5 Power Systems Department POLITEHNICA University of Timisoara, Faculty of
More informationMETODE DE EVALUARE A IMPACTULUI ASUPRA MEDIULUI ŞI IMPLEMENTAREA SISTEMULUI DE MANAGEMENT DE MEDIU
UNIVERSITATEA POLITEHNICA BUCUREŞTI FACULTATEA ENERGETICA Catedra de Producerea şi Utilizarea Energiei Master: DEZVOLTAREA DURABILĂ A SISTEMELOR DE ENERGIE Titular curs: Prof. dr. ing Tiberiu APOSTOL Fond
More informationEffects of Harmonic Pollution on Three-Phase Electrical Motors
t nternational Conference on Electrical and Electronics Engineering (CEEE-7) Oct. -, 07 Bali (ndonesia) Effects of Harmonic Pollution on Tree-Pase Electrical Motors Eleonora. Darie, Emanuel. Darie Abstract
More informationMETHOD OF TESTING AND CORRECTING SIGNAL AMPLIFIERS TRANSFER FUNCTION USING PRONY ANALYSIS
Metrol. Meas. Syst., Vol. XIX (01), No. 3, pp. 489-498. METROLOGY AND MEASUREMENT SYSTEMS Index 330930, ISSN 0860-89 www.metrology.pg.gda.pl METHOD OF TESTING AND CORRECTING SIGNAL AMPLIFIERS TRANSFER
More informationMODELLING PATTERNS FOR FABRIC REINFORCED COMPOSITES
BULETINUL INSTITUTULUI POLITEHNIC DIN IAŞI Publicat de Universitatea Tehnică Gheorghe Asachi din Iaşi Volumul 62 (66), Numărul 1, 2016 Secţia CONSTRUCŢII. ARHITECTURĂ MODELLING PATTERNS FOR FABRIC REINFORCED
More information