Techniques for Input Ripple Current Cancellation: Classification and Implementation

Size: px
Start display at page:

Download "Techniques for Input Ripple Current Cancellation: Classification and Implementation"

Transcription

1 Techniue fo Input Ripple Cuent Cancellation: Claification and Implementation N.K. Poon J.C.P. Liu C.K. Te and M.. Pong Abtact Switching powe upplie due to thei high-feuency witching opeation daw a ubtantial amount of input ipple cuent. Such ipple cuent manifet itelf a electomagnetic intefeence (EMI). Active and paive ipple cancellation method have been popoed in the pat. Thi pape dicue the cancellation method and claifie the baic cicuit configuation fo ipple cuent cancellation. The bai of dicuion i a nullification poce which can be decibed effectively in tem of the ideal cicuit element nullo. The initial focu i on diffeential-mode noie cancellation but the baic techniue can be applied eually to cancelling common-mode noie. The claification povide a clea guideline fo yntheizing pactical cancellation cicuit. Both active and paive implementation example ae given and expeimentally demontated. Index Tem Ripple cuent cancellation witching egulato electomagnetic intefeence I INTRODUCTION Input ipple cuent fom a witching powe upply contain conideable low-ode hamonic neceitating exta deign effot fo educing o limiting the amount of electomagnetic intefeence (EMI) in the feuency ange concened. To achieve electomagnetic compatibility (EMC) compliance filteing appoache ae commonly ued. Such appoache uually involve bulky component o a to povide effective uppeion of the Manucipt eceived 4 Januay 2000; evied 22 May N.K. Poon and J.C.P. Liu ae with the Depatment of Electical and Electonic Engineeing Univeity of ong Kong ong Kong and alo with the Depatment of Electonic and Infomation Engineeing ong Kong Polytechnic Univeity ong Kong China. ( nkpoon@eee.hku.hk & cpliu@eee.hku.hk)) C.K. Te i with the Depatment of Electonic and Infomation Engineeing ong Kong Polytechnic Univeity ong Kong China. ( ckte@eie.polyu.edu.hk) M.. Pong i with the Depatment of Electical and Electonic Engineeing Univeity of ong Kong ong Kong China. ( mhp@eee.hku.hk)

2 v =0 i =0 v C i n? v n i n? i v n v C i i v n (a) (b) (c) Type I v C v C i n? (d) Type II (e) Type III (f) Type IV i i Fig. : (a) Nullo ymbol; (b) implified ac euivalent model fo input cuent and main inteaction; (c) (f) ideal cicuit fo nulling input ipple cuent elatively high content of low-ode hamonic [ 2]. The ue of bulky filte howeve doe not eem to be an economical deign olution fo the light and hinking witching powe upplie. Active and paive ipple cancellation povide altenative appoache to the poblem. Some pactical fom of active cancellation cicuit have been epoted ecently [3] []. Although the baic method ha been known fo ome time thee eem to be no ytematic ynthei pocedue of active o paive noie cancelling cicuit that can expedite the pactical deign of uch cicuit. In thi pape we attempt to genealize the appoach and deive a family of baic cicuit configuation which can be implemented in both active and paive fom. We will decibe the baic theoy in tem of the ideal cicuit element nullo which i compoed of a nullato and a noato. The idea i to null the ipple cuent by placing a nullato at a uitable poition in the cicuit. The noato i then included to upply cuent o voltage at ome othe location a would be neceay to etoe the nomal loading o input condition. In fact many peviouly epoted active filte and noie cancelling cicuit can be yntheized fom thee baic configuation [3] []. Alo the techniue i eually applicable to combating common-mode noie although ou dicuion focue on diffeential-mode noie fo implicity. We will peent a compaative tudy of the baic appoache and dicu thei pactical implementation. Finally eult fom expeimental tet will be peented fo veification. II POSSIBILITIES OF ZERO INPUT RIPPLE CURRENT The ideal cicuit element nullato i a two-teminal device whoevoltageand cuent ae zeo whilethe noato i one whoe voltage and cuent can aume any value. Fig. (a) how thei cicuit ymbol. Obviouly any olvable cicuit mut have eual numbe of nullato and noato. An ideal op-amp fo example can be epeented by a pai of nullato and noato [2]. Conide now a witching powe upply which daw an ac ipple cuent fom the main. Let be the main impedance and i be the euivalent ac cuent that i being injected to the main. Suppoe an input 2

3 (a) Type I (c) Type III i i i (b) Type II i (d) Type IV Fig. 2: Active cicuit ealization of input ipple cuent nullifie (a) coeponding to Type I (Fig. c); (b) coeponding to Type II (Fig. d); (c) coeponding to Type III (Fig. e); (d) coeponding to Type IV (Fig. f) capacito i connected aco the main. Fig. (b) how the ac euivalent cicuit model. If we wih to null off the cuent that flow into we can eithe connect a nullato in eie o in paallel with. Fou configuation ae poible a hown in Fig. (c) though (d). We denote fo bevity thee configuation a Type I II III and IV. In the configuation of Type I and II a nullato i in eie with the main impedance. Zeo cuent thu flow in. oweve uch an aangement will neceitate the peence of a noato in ode to atify Kichhoff law. Likewie fo Type III and IV a nullato i in paallel with the main impedance and a noato i again mandatoy fo fulfilling Kichhoff law. Specifically the noato in each cae mut take up appopiate voltage o cuent. Fo the cicuit of Type I and III we have 8 >< >: v n = v C i n = 0 () and fo the cicuit of Type II and IV we have 8> < >: v n = 0 i n = i (2) Note that in all cae the noato ha eithe zeo voltage o cuent. Thu the powe diipation of the nullo in each cae i theoetically zeo. It hould be obviou that configuation of Type I and III would mandatoily euie the peence of a decoupling capacito wheea thoe of Type II and IV can omit uch a capacito theoetically. 3

4 III ACTIVE CIRCUIT REALIZATION III A Baic Configuation of Active Nullifie The conceptual cicuit deived in the foegoing ection can be ealized uing active device. Specifically nullo ae implementable by active device like op-amp and tanito [2]. Wheneve neceay iolation tanfome and dc level hifte may be included. Moeove ealization i not uniue and thee can be many poible ealization tyle. Fig. 2 how the cicuit implementation fo the configuation hown in Fig. (c) to (f). Thee cicuit ue op-amp a nullo and tanfome fo voltage level alignment. In theoy the eultant input cuent would be educed to zeo if the op-amp wa ideal. oweve in pactice the gain-bandwidth poduct of the op-amp and the ening cicuit bandwidth limit the pefomance. An appoximation fo the noie uppeion pefomance can be epeented by V N VN 0 = f n f (3) whee V N i the noie voltage aco if no nullifie cicuit i ued VN 0 i the noie voltage aco when a nullifie cicuit with an open-loop gain-bandwidth poduct of f i ued and f n i the noie bandwidth. Note that if f = we have pefect nullification. Fotunately the bandwidth of the op-amp doe not need to cove the whole EMI pectum fo mot pactical pupoe ince the noie cuent pectum geneally fall off at 40dB/dec at high feuencie. Mot exiting deign of diffeential-mode filte focu on the fit eveal hamonic of the witching feuency. ence it uually uffice to chooe an op-amp whoe gain-bandwidth poduct i high enough to enue good nulling pefomance fo the fit eveal hamonic of the witching feuency. III B Compaion of the Baic Active Nullifie Although all baic nullifie cicuit in theoy achieve the ame function of emoving the input ipple cuent they do have elative advantage and diadvantage when conideed fom a pactical point of view. In thi ection we attempt to povide a compaative eview of the baic configuation the aim being to identify thei inheent popetie that make them paticulaly uitable o unuitable fo pactical application. To compae the effectivene of the nullifie cicuit we calculate fo each cae the noie attenuation which i defined a [I ] with nullie NA = (4) [I ] without nullie whee [I ] with nullie and [I ] without nullie ae the input ipple cuent with and without the ue of a nullifie cicuit epectively. 4

5 Fo the active nullifie of Type I (Fig. 2 (a)) the noie attenuation i eadily found a NA I = z t (5) whee z t i the open-loop tan-impedance gain fom the ened input cuent to the counteacting voltage a hown in Fig. 2 (a). Note that the peence of i neceay fo abobing the ipple cuent. oweve fo the active nullifie of Type II (Fig. 2 (b)) the noie attenuation i found a NA II = A i () whee A i i the open-loop cuent gain fom the ened input cuent to the counteacting cuent a hown in Fig. 2 (b). Clealy i not mandatoy in thi cae. Moeove fo the active nullifie of Type III (Fig. 2 (c)) the noie attenuation i NA III = A v (7) whee A v i the open-loop voltage gain fom the ened input voltage to the counteacting voltage a hown in Fig. 2 (c). Note that i mandatoy fo thi type of active nullifie. Finally fo the active nullifie of Type IV (Fig. 2 (d)) the noie attenuation i NA IV = (8) g t whee g t i the open-loop tan-conductance gain fom the ened input voltage to the counteacting cuent a hown in Fig. 2 (d). Fo thi one i not neceay. Fom the above-deived expeion one can conclude that the effectivene of the method depend on the ize of (pick-up impedance) the ize of the hunt capacitance if exit and the open-loop gain of the active device ued. Specifically the following obevation ae made: Type I and III nullifie euie the ue of decoupling capacitance while Type II and IV do not. Active nullifie of Type I and III have identical pefomance if z t = = A v. Active nullifie of Type II and IV have identical pefomance if A i = g t. Fo z t =A v active nullifie of Type I pefom bette than thoe of Type III and vice vea. Fo A i =g t active nullifie of Type II pefom bette than thoe of Type IV and vice vea. 5

6 (a) (b) Fig. 3: Compaion of noie attenuation of the fou type of active nullifie fo (a) = k; and (b) = 0:. Aume openloop gain fo all type ae 2 0 =( jf=5). Type Amplifie type Amplifie gain Noie attenuation I taneitance z t z t II cuent gain A i A i III voltage gain A v A v IV tanconductance g t g t Table : Popetie of active nullifie When = active nullifie of Type II and III have imila pefomance. ence at high feuencie thei pefomance ae ymptotically the ame. A convenient way to compae thee nullifie i to plot the noie attenuation fo diffeent. Fig. 3 (a) and (b) compae the noie attenuation of the fou active nullifie fo two diffeent. In all cae we aume that =F and the active device ha an open-loop gain of 2 0 and a low-feuency oll-off at 5 z i.e. z t = A v = A i = g t =20 =( jf=5). Table ummaize the eential popetie. IV PASSIVE CIRCUIT REALIZATION The foegoing ha illutated the ue of a nullato to foce the input ipple cuent to zeo with a noato helping to keep the null condition by upplying a uitable voltage o cuent. Taking a cloe look the null condition can in fact be maintained if a voltage o cuent ouce of the ight magnitude i applied in lieu of the noato.

7 v i (a) v C (b) i Fig. 4: Altenative implementation fo (a) cicuit of Type I and III; (b) cicuit of Type II and IV. can be omitted in (b). v C (= ) i (a) Paive @@? i x v C i (b) Paive Type II Fig. 5: Conceptual cicuit ealization of input ipple cuent nullifie by feedfowad of noie cuent; (a) coeponding to Fig. 4a; (b) coeponding to Fig. 4b. can be omitted in (b). Two cae can be identified accoding to Fig. :. Fo the cicuit of Type I and III the noato need to upply a voltage of v C accoding to () in ode to maintain the null condition. 2. Fo the cicuit of Type II and IV the noato need to upply a cuent of i accoding to (2) in ode to maintain the null condition. Now it i appaent that if we can place a voltage (cuent) ouce that aume exactly the value of v C (i )in eie (paallel) to the input then we would be able to make the input cuent zeo. Moeove thi appoach may need no nullato and euie only paive component. Fig. 4 illutate thee altenative configuation. 7

8 N N p Z i (a) Paive Type I Z n N N p Z i (b) Paive Type II Fig. : Paive cicuit ealization of input ipple cuent nullifie baed on feedfowad of noie cuent; (a) coeponding to Fig. 5a; (b) coeponding to Fig. 5b. can be omitted in (b). The cicuit of Fig. 4 can be conceptually contucted by diect feedfowad of the noie cuent a illutated in Fig. 5. A taightfowad implementation of thee feedfowad cicuit i to ue a tanfome with uitable ening impedance a hown in Fig.. Fo the cicuit of Fig. (a) nulling can be achieved if the tanfome econday poduce a voltage which i vey cloe to v C a explained ealie. Thi euie that the ening impedance Z be given by L T Z = (9) 2 L T n T whee L T i the magnetizing inductance een fom the tanfome pimay and n T i the tun atio N =N p. If L T n T = wehave Z (0) n T Fo the cicuit of Fig. (b) nulling can be achieved if the tanfome econday poduce a cuent which i vey cloe to i. Ignoing the tanfome leakage the euiement can be expeed a Z n = Z n T ( n T ) Z L T () which can be appoximated a Z n Z n T if n T and L T Z. Note that in thi cae the decoupling capacito can be omitted. Remak Paive nulling ha been popoed epeatedly by vaiou autho a uveyed by amill and Kein []. Ou intention hee howeve i to genealize the techniue in tem of nullification of input cuent. Futhemoe it i poible to deive altenative ealization baed on ening voltage. Fo intance efeing to Fig. (a) the tanfome pimay may be connected aco ening the noie voltage and the econday 8

9 Peviou wok Type Mode Faka-Schlecht [3] active II diffeential Vlatkovic et al. [4] active I diffeential Lee-Cho [5] active I diffeential amill [] active II diffeential paive II Takahahiet al. [8] active II common Julian et al. [9] paive I common Ogaawaa et al. [0] active III common amill-kein [] paive II diffeential Table 2: Example of epoted cicuit poduce the voltage ouce a euied in the baic configuation hown in Fig. 5 (a). Table 2 how ome peviouly epoted cicuit including both active and paive appoache. V EXPERIMENTAL VERIFICATION We have contucted fou active nullifie cicuit coeponding to the fou baic type dicued in Section III and alo two paive nullifie cicuit coeponding to the two baic type dicued in Section IV. The chematic of thee ix expeimental cicuit ae hown in Fig. 7 and 8. All cicuit except the one hown in Fig. 8 (b) ae obviou deivative of the epective baic fom. Moeove upon cloe inpection the cicuit of Fig. 8 (b) i indeed deivable fom the baic cicuit of Fig. (b). Fitly we make ue of the inductance of the boot convete to eve a Z. Secondly we hift one end of the tanfome to the lowe ide of (i.e. gound). Such hifting can be done becaue i a vitual ac hot-cicuit unde the nullification condition. The cicuit of Fig. 8 (b) i theefoe euivalent to that of Fig. (b). Moeove it i inteeting to note that the coupled filte dicued in amill and Kein [] i in fact diectly deivable fom the baic cicuit of Fig. (b). Each cicuit i applied to a boot convete opeating at kz and tepping up voltage fom 24V to 48V. Fo each cae we meaue the input cuent wavefom and it feuency pectum. Reult ae hown in Fig. 9 and 0 fo the active nullifie and the paive nullifie epectively. Fo compaion in Fig. 9 (b) we alo give the meaued input cuent wavefom and pecta when no nullifie i ued and when only a 20 choke i ued. In all cae we obeve ignificant eduction in the input cuent ipple that can be gained uing the nullification techniue. Remak Compaing the expeimental eult and the analyi peented ealie one can obeve ome 9

10 24V 24V 24V 24V 20: 0k 20: 0k 0k 0k.5k 0. 5V TL08.5k 0. 5V TL V TL08 3.3k 5V k 2907 (a) Type k 2907 (b) Type k 2907 (c) Type k 2907 (d) Type IV 20: 27 20: STT200-0 F F IRF30 STT200-0 F F IRF30 STT200-0 F F IRF30 STT200-0 F F IRF30 Fig. 7: Expeimental cicuit fo active nullification. All 20 tanfome/inducto ae FRx5x4 ion powe tooid. 0

11 24V 20: F (Z ) F (a) IRF30 - F STT V C in F (aloz ) 0(Z n) :0 - C c C c2 F (b) STT200 IRF30 0 F Fig. 8: Expeimental cicuit fo paive nullification (a) coeponding to Fig. a; and (b) coeponding to Fig. b. All 20 tanfome/inducto ae FRx5x4 ion powe tooid. obviou dicepancie between the expeimental meauement and the analytical pediction notably in epect of the elative amount of noie attenuation of diffeent type of active nullifie. Thi in fact can be eaily undetood ince ou analyi aume eual gain value fo all Z t A v A i and g t while pactical implementation of thee gain ae ubject to vaying limitation and euiement fo maintaining loop tability unde diffeent implementation. VI CONCLUSION Noie cancellation techniue ae ueful in powe electonic fo contol of EMI. Liteatue abound with pactical cicuit fo noie cancellation in both active and paive fom. oweve in ode to fully exploit the poibilitie of noie cancellation we need a fomal claification baed on which we can develop noie cancelling cicuit ytematically. In hot the baic appoach conit of nulling the input ac cuent which demand knowledge of the noie ouce (hence ening of noie ouce). The nulling opeation can be pefomed with a high-gain active device whoe input i applied to the uantity to be nulled and whoe output i applied appopiately to fulfill the cicuit condition a eticted by Kichhoff law. Altenatively paive feedfowad can be applied to achieve nea null condition. In thi pape we have attempted to claify the baic noie cancellation method in tem of the baic poce of nullification. Specifically we have deived fou fundamental nulling configuation dicued thei pactical implementation and compaed thei elative meit. Intead of intoducing o inventing new cicuit we have focued ou attention on the deivation of noie cancelling cicuit fom fit pinciple. Pactical implementation ae numeou. Many pape [3] [] wee witten and patent [3] poduced in the pat addeing paticula cicuit implementation. While new cicuit continue to be invented it may be wothwhile to econide the fundamental in geate depth in ode to einfoce the theoetical bai that i neceay fo the contuction of effective noie cancelling cicuit.

12 (a) Without cancellation (b) With a 20 eie choke (c) With active nullifie of Fig. 8a (d) With active nullifie of Fig. 8b (e) With active nullifie of Fig. 8c (f) With active nullifie of Fig. 8d Fig. 9: Reult fom expeimental cicuit of active nullifie. Uppe tace: pectum (tating 0z hoiz. kz/div vet. 4mA/div); Lowe tace: input cuent ipple wavefom (hoiz. 0/div vet. 20mA/div) 2

13 (a) With paive nullifie of Fig. 9a (b) With paive nullifie of Fig. 9b Fig. 0: Reult fom expeimental cicuit of paive nullifie. Uppe tace: pectum (tating 0z hoiz. kz/div vet. 4mA/div); Lowe tace: input cuent ipple wavefom (hoiz. 0/div vet. 20mA/div) VII ACKNOWLEDGMENT We wih to thank the anonymou eviewe fo thei thoough eview of thi pape and fo many contuctive comment and uggetion that help impove the content of thi pape. REFERENCES [] J. Goedbloed Electomagnetic Compatibility London: Pentice all 990. [2] M.J. Nave Powe Line Filte Deign fo Switched-Mode Powe Supplie New Yok: Van Notand Reinhold 99. [3] T. Faka and M.F. Schlecht Viability of Active EMI Filte fo Utility Application IEEE Tan. Powe Electon. Vol. 9 No. 3 pp May 994. [4] V. Vlatkovic D. Boojevic and F.C. Lee Input Filte Deign fo Powe Facto Coection Cicuit IEEE Tan. Powe Electon. Vol. No. pp Januay 99. [5] D.Y. Lee and B.. Cho Deign of an Input Filte fo Powe Facto Coection (PFC) AC to DC Convete Employing an Active Ripple Cancellation Poc. 3d Inte-ociety Enegy Conveion Engineeing Confeence pp [] D.C. amill An Efficient Active Ripple Filte fo Ue in DC-DC Conveion IEEE Tan. Aeo. Electon. Syt. Vol. 32 No. 3 pp July 99. 3

14 [7] J.W. Kola. See N. Mohan and F.C. Zach Novel Apect of an Application of Zeo -Ripple Techniue to Baic Convete Topologie IEEE PESC Rec. pp [8] I. Takahahi A. Ogata. Kanazawa and A. iuma Active EMI Filte fo Switching Noie of igh Feuency Invete Poc. Powe Conveion Confeence Nagaoka Japan pp [9] A.L. Julian R. Cuzne G. Oiti and T.A. Lipo Active Filteing fo Common mode Conducted EMI Reduction in Voltage Souce Invete Poc. IEEE APEC pp [0] S. Ogaawaa. Ayano and. Akagi An Active Cicuit fo Cancellation of Common-mode Voltage Geneated by a PWM Invete IEEE Tan. Powe Electon. Vol. 3 No. 5 pp Septembe 998. [] D.C. amill and P.T. Kein A Zeo Ripple Techniue Applicable to Any DC Convete IEEE PESC Rec. pp [2] L. Buton Active RC Cicuit: Theoy and Deign Englewood Cliff: Pentice all 980. [3] J. Maeo and C. Pang Ripple Cuent Reduction Cicuit US Patent Augut 99. 4

Rotating Field Voltage Analysis on the Stator and Rotor of the Inverted Rotor Induction Motor

Rotating Field Voltage Analysis on the Stator and Rotor of the Inverted Rotor Induction Motor Poceeding of the 6th WSEAS Intenational Confeence on Application of Electical Engineeing, Itanbul, Tukey, May 7-9, 007 17 Rotating Field oltage Analyi on the Stato and Roto of the Inveted Roto Induction

More information

Novel Analytic Technique for PID and PIDA Controller Design. Seul Jung and Richard C. Dorf. Department of Electrical and Computer Engineering

Novel Analytic Technique for PID and PIDA Controller Design. Seul Jung and Richard C. Dorf. Department of Electrical and Computer Engineering Novel Analytic Technique fo PID and PIDA Contolle Deign Seul Jung and Richad C. Dof Depatment of Electical and Compute Engineeing U niveity of Calif onia; Davi Davi, CA 9566 e-mail:jung@ece.ucdavi.edu,

More information

Techniques for Input Ripple Current Cancellation: Classification and Implementation

Techniques for Input Ripple Current Cancellation: Classification and Implementation 1144 IEEE TRANSACTIONS ON POWER ELECTRONICS, VOL. 15, NO. 6, NOVEMBER 2000 Techniques for Input Ripple Current Cancellation: Classification and Implementation N. K. Poon, Member, IEEE, J. C. P. Liu, Member,

More information

2) Calibration Method and Example

2) Calibration Method and Example Calibating Receive Fequency and Soundcad Sampling Rate uing an O-i Standad Fequency Jim Moitz, M0BMU ) Intoduction When uing a yntheied eceive and PC with ound cad with weak-ignal otwae uch a WOLF [http://eenet-homepage.de/dl4yh/wol/index.html],

More information

Design of composite digital filter with least square method parameter identification

Design of composite digital filter with least square method parameter identification Intenational Jounal of eeach in Engineeing and Science (IJES) ISSN (Online): 3-9364, ISSN (Pint): 3-9356 www.ije.og Volume 3 Iue ǁ Decembe. 5 ǁ PP.-4 Deign of compoite digital filte with leat quae method

More information

Simulation and Analysis of Indirect Field Oriented Control (IFOC) of Three Phase Induction Motor with Various PWM Techniques

Simulation and Analysis of Indirect Field Oriented Control (IFOC) of Three Phase Induction Motor with Various PWM Techniques ol. 2, ue 2, Aug 2015, SSN 2349-0780 Simulation and Analyi of ndiect Field Oiented Contol (FOC) of Thee Phae nduction Moto with aiou PWM Technique Teja H Panchal 1, Amit N Patel 1, Saga Soniga 2 1,2 Electical

More information

12th WSEAS International Conference on SYSTEMS, Heraklion, Greece, July 22-24, Feedback Signals Estimation of an Induction Machine Drive

12th WSEAS International Conference on SYSTEMS, Heraklion, Greece, July 22-24, Feedback Signals Estimation of an Induction Machine Drive 2th WSEAS Intenational Confeence on SYSEMS, Healion, Geece, July 22-24, 28 Feedbac Signal Etimation of an Induction Machine Dive CONSANIN APOSOAIA, ZOAN SZEKEY, and DONAD GRAY Electical and Compute Engineeing

More information

Single-Switch High Power Factor Inverter for Driving Piezoelectric Ceramic Transducer

Single-Switch High Power Factor Inverter for Driving Piezoelectric Ceramic Transducer Single-Switch High Powe Facto Invete fo Diving Piezoelectic Ceamic Tanduce Hung iang Cheng * Chun An Cheng ** Chun Chieh Fang Hau Chen Yen Depatment of Electical Engineeing, Depatment of Electical Engineeing,

More information

LECTURE 24 INDUCTION MACHINES (1)

LECTURE 24 INDUCTION MACHINES (1) ECE 330 POWER CIRCUITS AND ELECTROMECHANICS LECTURE 24 INDUCTION MACHINES (1) Acknowledgment-Thee handout and lectue note given in cla ae baed on mateial fom Pof. Pete Saue ECE 330 lectue note. Some lide

More information

7. Inverter operated induction machines

7. Inverter operated induction machines 7. Invete opeated induction machine Souce: Siemen AG, Gemany Dept. of Electical Enegy Conveion Pof. A. Binde 7/1 Invete-fed induction machine Fequency convete (invete) geneate thee-phae voltage ytem with

More information

All-Digital DPWM/DPFM Controller for Low-Power DC-DC Converters

All-Digital DPWM/DPFM Controller for Low-Power DC-DC Converters All-Digital DPWM/DPFM Contolle fo Low-Powe DC-DC Convete Kun Wang, Nabeel Rahman, Zdavko Lukic, and Alekanda Podic Laboatoy fo Low Powe Management and Integated Switch-Mode Powe Supplie Depatment of Electical

More information

Sliding Mode Control for Half-Wave Zero Current Switching Quasi-Resonant Buck Converter

Sliding Mode Control for Half-Wave Zero Current Switching Quasi-Resonant Buck Converter Sliding Mode Contol fo Half-Wave Zeo Cuent Switching Quasi-Resonant Buck Convete M. Ahmed, Student membe, IEEE, M. Kuisma, P. Silventoinen Abstact This pape focuses on the pactical implementation of sliding

More information

Frequency Separation Actuation Resonance Cancellation for Vibration Suppression Control of Two-Inertia System Using Double Motors

Frequency Separation Actuation Resonance Cancellation for Vibration Suppression Control of Two-Inertia System Using Double Motors Fequency Sepaation Actuation Reonance Cancellation fo Vibation Suppeion Contol of Two-Inetia Sytem Uing Double Moto enji Inukai, and Hiohi Fujimoto The Univeity of Tokyo ahiwa, Chiba, Japan Email: inukai@hflab.k.u-tokyo.ac.jp,

More information

/17/$ IEEE

/17/$ IEEE IEEE PEDS 017, Honolulu, USA 1 15 Decembe 017 Enhancing Wiele Powe Tanfe Capability of Inductive Powe Tanfe Sytem Uing Matix Powe Repeate Rong Hua*, Student membe, IEEE, Bo ong, Aiguo Patick Hu, Senio

More information

4. Space-Time Block Coding

4. Space-Time Block Coding . Space-Time Block Coding. Intoduction. Delay Diveity Scheme. Alamouti Space-Time Code. Space-Time Block Code.5 Decoding of STBC.6 Simulation Reult.7 Impefect Channel Etimation: A Pefomance Analyi.8 Effect

More information

Design of an LLC Resonant Converter Using Genetic Algorithm

Design of an LLC Resonant Converter Using Genetic Algorithm Design of an LLC Resonant Convete Using Genetic Algoithm H. H. Nien, C. K. Huang, S. K. Changchien, C. H Chan Dept. of Electical Engineeing, Chienkuo Technology Univesity E-mail: nien@ctu.edu.tw Dept,

More information

HISTORY AND PROGRESS OF THE TOW THOMAS BI-QUADRATIC FILTER. PART I. GENERATION AND OP AMP REALIZATIONS

HISTORY AND PROGRESS OF THE TOW THOMAS BI-QUADRATIC FILTER. PART I. GENERATION AND OP AMP REALIZATIONS Jounal of icuits, Systems, and omputes Vol. 7, No. (2008) 33 54 c Wold Scientific Publishing ompany HISTOY ND POGESS OF THE TOW THOMS BIQUDTI FILTE. PT I. GENETION ND OP MP ELIZTIONS HMED M. SOLIMN Electonics

More information

RED W 1000mA LED Driver Design Report

RED W 1000mA LED Driver Design Report ed i RED2422 40W 1000mA LED Dive Deign Repot Low-cot Flicke-fee CC LED dive Efficiency 90.7% High Powe Facto >0.9 1.0A 32-40V output Low EMI no CM choke Optimized fo COB/Panel No CM Choke Single Stage

More information

Performance Analysis of Z-Source Inverter Considering Inductor Resistance

Performance Analysis of Z-Source Inverter Considering Inductor Resistance Pefomance Analysis of Z-Souce Invete Consideing Inducto Resistance Fatma A. Khea * and Essam Eddin M. Rashad ** Electic Powe and Machines Engineeing Depatment, Faculty of Engineeing, anta Univesity, anta,

More information

Discussion #7 Example Problem This problem illustrates how Fourier series are helpful tools for analyzing electronic circuits. Often in electronic

Discussion #7 Example Problem This problem illustrates how Fourier series are helpful tools for analyzing electronic circuits. Often in electronic Discussion #7 Example Poblem This poblem illustates how Fouie seies ae helpful tools fo analyzing electonic cicuits. Often in electonic cicuits we need sinusoids of vaious fequencies But we may aleady

More information

Proposal of Circuit Breaker Type Disconnector for Surge Protective Device

Proposal of Circuit Breaker Type Disconnector for Surge Protective Device Poposal of Cicuit Beake Type Disconnecto fo Suge Potective Device MASAO SHIBAYAMA, HITOSHI KIJIMA Polytechnic Univesity 2-32-1 Ogawanishi, Kodaia, Tokyo, 187-0035 JAPAN hkijima@uitec.ac.jp Abstact: - A

More information

A Novel Algorithm for Blind Adaptive Recognition between 8-PSK and /4-Shifted QPSK Modulated Signals for Software Defined Radio Applications

A Novel Algorithm for Blind Adaptive Recognition between 8-PSK and /4-Shifted QPSK Modulated Signals for Software Defined Radio Applications A ovel Algoithm fo Blind Adaptive Recognition between 8-PSK and /4-Shifted QPSK Modulated Signal fo Softwae Defined Radio Application A. Abaviani, M. Soleimani and V. Tabatabavakili Electical Engineeing

More information

TOTAL LUMINOUS FLUX AND CHROMACITY MEASUREMENT FOR LED LUMINAIRES USING ABSOLUTE INTERATING SPHERE METHOD

TOTAL LUMINOUS FLUX AND CHROMACITY MEASUREMENT FOR LED LUMINAIRES USING ABSOLUTE INTERATING SPHERE METHOD TOTAL LUMINOUS FLUX AND CHROMACITY MEASUREMENT FOR LED LUMINAIRES USING ABSOLUTE INTERATING SPHERE METHOD Pan, J. 1, Qian, F. 2, Min, F. 1 and Li, Y. 1 1 EVERFINE PHOTO-E-INFO., CO., LTD.,Hangzhou, China

More information

Minimizing Ringing and Crosstalk

Minimizing Ringing and Crosstalk Minimizing Ringing and Cosstalk By Glen Dash, Ampyx LLC, GlenDash at alum.mit.edu Copyight 1998, 26 Ampyx LLC When viewed on a schematic, a wie is just a wie. Howeve, when isetimes shink to a few nanoseconds

More information

A New Buck-Boost DC/DC Converter of High Efficiency by Soft Switching Technique

A New Buck-Boost DC/DC Converter of High Efficiency by Soft Switching Technique A New Buck-Boost D/D onvete of High Efficiency by Soft Switching Technique Dong-Kul Kwak, Seung-Ho Lee, and Do-Young Jung Pofessional Gaduate School of Disaste Pevention, Kangwon National Univesity, 45-711,

More information

Modeling and Simulation of Reluctance motor using digital computer

Modeling and Simulation of Reluctance motor using digital computer ntenational Jounal of Compute Science an Electonic Engineeing (JCSEE) olume, ue (0) SSN 0 408 (Online) Moeling an Simulation of uctance moto uing igital compute Motafa. A. Fellani, an Daw. an E. Abai Abtact

More information

ECEN326: Electronic Circuits Fall 2017

ECEN326: Electronic Circuits Fall 2017 ECEN36: Electonic Cicuits Fall 07 Lectue 4: Cascode Stages and Cuent Mios Sam Palemo Analog & Mixed-Signal Cente Texas A&M Univesity Announcements HW3 due 0/4 Exam 0/9 9:0-0:0 (0 exta minutes) Closed book

More information

A Discussion about a Start-up Procedure of a Doubly-Fed Induction Generator System

A Discussion about a Start-up Procedure of a Doubly-Fed Induction Generator System 1 A Dicuion about a Stat-up Pocedue o a Doubly-Fed Induction Geneato Sytem J. L. Da Silva*, R. G. de Oliveia*, S. R Silva*, B. Rabelo** and W. Homann** *Fedeal Univeity O Mina Geai/Electic Engineeing Reeach

More information

An Efficient Control Approach for DC-DC Buck-Boost Converter

An Efficient Control Approach for DC-DC Buck-Boost Converter 2016 Published in 4th Intenational Symposium on Innovative Technologies in Engineeing and Science 3-5 Novembe 2016 (ISITES2016 Alanya/Antalya - Tukey) An Efficient Contol Appoach fo DC-DC Buck-Boost Convete

More information

Experimental Investigation of Influence on Non-destructive Testing by Form of Eddy Current Sensor Probe

Experimental Investigation of Influence on Non-destructive Testing by Form of Eddy Current Sensor Probe Expeimental Investigation of Influence on Non-destuctive Testing by Fom of Eddy Cuent Senso Pobe Fengyun Xie * and Jihui Zhou School of Mechanical and Electonical Engineeing, East China Jiaotong Univesity,

More information

Maximum Likelihood Detection for Detect-and-Forward Relay Channels

Maximum Likelihood Detection for Detect-and-Forward Relay Channels Int. J. Communication, Netwok and Sytem Science,, 4, 88-97 doi:.436/ijcn..4 Publihed Online Febuay (http://www.scirp.og/jounal/ijcn) Maximum Likelihood Detection fo Detect-and-Fowa Relay Channel Abtact

More information

Chapter 9 Cascode Stages and Current Mirrors

Chapter 9 Cascode Stages and Current Mirrors Chapte 9 Cascode Stages and Cuent Mios 9. Cascode Stage 9. Cuent Mios CH 9 Cascode Stages and Cuent Mios Boosted Output Impedances S O S m out E O E m out g g Bipola Cascode Stage [ g ( )] out m O O O

More information

Voltage Stability in Power Network when connected Wind Farm Generators

Voltage Stability in Power Network when connected Wind Farm Generators PEDS009 oltage Stability in Powe Netwok when connected Wind Fam Geneato P. N. Boonchiam Membe, IEEE Electical Engineeing Depatment, Faculty of Engineeing, Rajamangala Uni. of Tech. Thanyabui Pathumthani

More information

DESIGN OF A ROBUST LINEAR CONTROLLER FOR PROPER TRACKING IN FREQUENCY DOMAIN

DESIGN OF A ROBUST LINEAR CONTROLLER FOR PROPER TRACKING IN FREQUENCY DOMAIN 4 th ITERATIOAL SYMPOSIUM on POWER ELECTROICS - Ee 27 XIV Međunaodni impozijum Enegeta eletonia Ee 27 OVI SAD, REPUBLIC OF SERBIA, ovembe 7 th - 9 th, 27 DESIG OF A ROBUST LIEAR COTROLLER FOR PROPER TRACKIG

More information

Development of a New Duct Leakage Test: Delta Q

Development of a New Duct Leakage Test: Delta Q LBNL 47308 Development of a New Duct Leakage Tet: Delta Q Walke, I.S., Sheman, M.H., Wempen, J., Wang, D., McWilliam, J.A., and Dickehoff, D.J. Enegy efomance of Building Goup Lawence Bekeley National

More information

A Theoretical Model for Corrosion Assessment in Overhead Line Conductors

A Theoretical Model for Corrosion Assessment in Overhead Line Conductors Theoetical Model fo Cooion ement in Ovehead Line Conducto Celio F. Baboa Geência de Soluçõe Tecnológica paa o Seto Elético Cento de Pequia e Deenv. em Telecomunicaçõe - CPqD Campina, SP, Bail gcelio@cpqd.com.b

More information

REPORT ITU-R SA Means of calculating low-orbit satellite visibility statistics

REPORT ITU-R SA Means of calculating low-orbit satellite visibility statistics Rep. ITU-R SA.066 1 REPORT ITU-R SA.066 Mean of calculating low-obit atellite viibility tatitic (006) CONTENTS 1 Intoduction... Page Pecentage of time and maximum duation fo a low-obiting pacecaft occupying

More information

A Multi-hybrid Energy System for Hybrid Electric

A Multi-hybrid Energy System for Hybrid Electric Wold Electic Vehicle Jounal Vol. 4 - ISSN 03-6653 - 00 WEVA Page000505 EVS5 Shenzhen, hina, Nov 5-9, 00 A Multi-hybid Enegy Sytem fo Hybid Electic Vehicle Xiaodong Zhang, K. T. hau, and.. han Depatment

More information

Image Enhancement. To process an image so that output is visually better than the input, for a specific application.

Image Enhancement. To process an image so that output is visually better than the input, for a specific application. Image Enhancement To poce an image o that output i viually bette than the input, fo a pecific application. Enhancement i theefoe, vey much dependent on the paticula poblem/image at hand. Enhancement can

More information

Post-Fault Speed Sensor-Less Operation Based on Kalman Filter for a Six-Phase Induction Motor

Post-Fault Speed Sensor-Less Operation Based on Kalman Filter for a Six-Phase Induction Motor Pot-Fault Speed Seno-Le Opeation Baed on Kalman Filte fo a Six-Phae Induction Moto Ilam M. Soliman 1, Elhuien A. Mahmoud 2, Ayman S. Abdel-Khalik 3, Huein F. Soliman 4 1 Depatment of MEA-Sytem & Infatuctue,

More information

where and are polynomials with real coefficients and of degrees m and n, respectively. Assume that and have no zero on axis.

where and are polynomials with real coefficients and of degrees m and n, respectively. Assume that and have no zero on axis. function whee is an unknown constant epesents fo the un-modeled dynamics The pape investigates the position contol of electical moto dives that can be configued as stuctue of Fig 1 This poblem is fomulated

More information

N2-1. The Voltage Source. V = ε ri. The Current Source

N2-1. The Voltage Source. V = ε ri. The Current Source DC Cicuit nalysis The simplest cicuits to undestand and analyze ae those that cay diect cuent (DC). n this note we continue ou study of DC cicuits with the topics of DC voltage and cuent souces, the idea

More information

QAM CARRIER TRACKING FOR SOFTWARE DEFINED RADIO

QAM CARRIER TRACKING FOR SOFTWARE DEFINED RADIO QAM CARRIER TRACKING FOR SOFTWARE DEFINED RADIO M Jame D. Scheude (Scheude Engineeing, Sydney, NSW, Autalia; jame.cheude@cheude.com.au) ABSTRACT Thi pape invetigate Quadatue Amplitude Modulation (QAM)

More information

Experimental Prototype of Open-End Stator Winding Induction Machine Fed by Three Phase Inverters

Experimental Prototype of Open-End Stator Winding Induction Machine Fed by Three Phase Inverters Expeimental Pototype of Open-End Stato Winding Induction Machine Fed by hee Phae Invete SAMI Guizani 1,, ABDELMONOEM Nayli,, FAOUZI Ben Amma 1 IPEIEM, Univeity of El Mana, uniia guizani_ami@yahoo.f Univeity

More information

A Novel Resonant LLC Soft-Switching Inverting-Buck Converter

A Novel Resonant LLC Soft-Switching Inverting-Buck Converter Novel Resonant LLC Soft-Switching Inveting-Buck Convete Masoud Jabbai, Nahid Hematian Najafabadi, Ghazanfa Shahgholian, Mehdi Mahdavian Electical Engineeing Depatment, Najafabad Banch, Islamic zad Univesity,

More information

A Miniaturization Technique of a Compact Omnidirectional Antenna

A Miniaturization Technique of a Compact Omnidirectional Antenna RADIOENGINEERING, VOL. 8, NO. 4, DECEMBER 9 373 A Miniatuization Technique of a Compact Omnidiectional Antenna Saah SUFYAR, Chitophe DELAVEAUD CEA-LETI MINATEC F-3854 Genoble, Fance aah.ufya@cea.f, chitophe.delaveaud@cea.f

More information

Modeling and Simulation of a Boost DC/AC Inverter fed Induction Motor Drive

Modeling and Simulation of a Boost DC/AC Inverter fed Induction Motor Drive oeling an Simulation of a Boot DC/AC Inete fe Inuction oto Die Tolga Sügeil Douz Eylül Unieity, Faculty of Engineeing, Depatment of Electical & Electonic Engineeing, Kaynala Campu 560, Buca, Izmi, Tuey

More information

Digital Simulation of FM-ZCS-Quasi Resonant Converter Fed DD Servo Drive Using Matlab Simulink

Digital Simulation of FM-ZCS-Quasi Resonant Converter Fed DD Servo Drive Using Matlab Simulink SERBIAN JOURNAL OF ELECTRICAL ENGINEERING Vol. 6, No. 2, Novembe 2009, 227-237 UDK: 621.314.1:621.376 Digital Simulation of FM-ZCS-Quasi Resonant Convete Fed DD Sevo Dive Using Matlab Simulink Kattamui

More information

Short-Circuit Fault Protection Strategy of Parallel Three-phase Inverters

Short-Circuit Fault Protection Strategy of Parallel Three-phase Inverters Shot-Cicuit Fault Potection Stategy of Paallel Thee-phase Invetes Hongliang Wang, Membe, IEEE, Xuejun Pei, Membe, IEEE, Yu Chen, Membe, IEEE,Yong Kang College of Electical and Electonics Engineeing Huazhong

More information

Gas Tube Arresters. Certifications, Device Selection Purpose, Operation, Installation Part Number Construction, Part Marking. General Information

Gas Tube Arresters. Certifications, Device Selection Purpose, Operation, Installation Part Number Construction, Part Marking. General Information Gas Tube Aestes The Potection Poducts Goup of Wold Poducts Inc., specializing in potection poducts fo AC and DC cicuits, is poud to featue a full line of Gas Tube Aestes. Ceamic Gas Tube Aestes povide

More information

Closed Loop Controlled LLC Half Bridge Isolated Series Resonant Converter

Closed Loop Controlled LLC Half Bridge Isolated Series Resonant Converter Closed Loop Contolled LLC Half Bidge Isolated Seies Resonant Convete Sivachidambaanathan.V and S. S. Dash Abstact LLC seies esonant convete is the most suitable convete fo medium powe applications due

More information

HIGH VOLTAGE DC-DC CONVERTER USING A SERIES STACKED TOPOLOGY

HIGH VOLTAGE DC-DC CONVERTER USING A SERIES STACKED TOPOLOGY HIGH VOLTAGE DC-DC CONVERTER USING A SERIES STACKED TOPOLOGY Author: P.D. van Rhyn, Co Author: Prof. H. du T. Mouton Power Electronic Group (PEG) Univerity of the Stellenboch Tel / Fax: 21 88-322 e-mail:

More information

Figure Geometry for Computing the Antenna Parameters.

Figure Geometry for Computing the Antenna Parameters. Spheical Coodinate Systems Definitions Figue 1.2.1 Geomety fo Computing the Antenna Paametes. Antenna Radiation Patten: The distibution of adiated enegy fom an antenna ove a suface of constant adius centeed

More information

Design of A Circularly Polarized E-shaped Patch Antenna with Enhanced Bandwidth for 2.4 GHz WLAN Applications

Design of A Circularly Polarized E-shaped Patch Antenna with Enhanced Bandwidth for 2.4 GHz WLAN Applications VNU Jounal of Science: Comp. Science & Com. Eng., Vol. 31, No. 2 (2015) 1-7 Design of A Ciculaly Polaized E-shaped Patch Antenna with Enhanced Bandwidth fo 2.4 GHz WLAN Applications Hong Van Tam 1, Luong

More information

High Efficiency Double-Fed Induction Generator Applied to Wind Power Generator Technical Analyses

High Efficiency Double-Fed Induction Generator Applied to Wind Power Generator Technical Analyses Enegy and Powe Engineeing, 011, 3, 53-61 doi:10.436/epe.011.3303 Publihed Online July 011 (http://www.scirp.og/jounal/epe) High Efficiency Double-Fed Induction Geneato Applied to Wind Powe Geneato Technical

More information

Analysis and Implementation of LLC Burst Mode for Light Load Efficiency Improvement

Analysis and Implementation of LLC Burst Mode for Light Load Efficiency Improvement Analysis and Implementation of LLC Bust Mode fo Light Load Efficiency Impovement Bin Wang, Xiaoni Xin, Stone Wu, Hongyang Wu, Jianping Ying Delta Powe Electonics Cente 238 Minxia Road, Caolu Industy Zone,

More information

Direct Torque Control of Induction Motor Based on Space Vector Modulation Using a Fuzzy Logic Speed Controller

Direct Torque Control of Induction Motor Based on Space Vector Modulation Using a Fuzzy Logic Speed Controller Volume 54, Numbe, 013 139 Diect Toque Contol of Induction Moto Baed on Space Vecto Modulation Uing a Fuzzy Logic Speed Contolle Abdeelem CHIKHI ABSTRACT - In the pape, the popoed diect toque contol uing

More information

International Journal of Advance Engineering and Research Development

International Journal of Advance Engineering and Research Development Scientific Jounal of Impact Facto SJIF:.7 Intenational Jounal of Advance Engineeing and eeach Development olume, Iue, Novembe -7 e-issn O: 8-7 p-issn P: 8-66 otalk Modeling and Analyi of oupled Inteconnect

More information

Variable Speed Drive Volumetric Tracking (VSDVT) for Airflow Control in Variable Air Volume (VAV) Systems

Variable Speed Drive Volumetric Tracking (VSDVT) for Airflow Control in Variable Air Volume (VAV) Systems EL-HH--5-4 Vaiable peed Dive Volumetic Tacking (VDVT) fo Aiflow Contol in Vaiable Ai Volume (VAV) ytem Mingheng Liu, Ph.D., P. E. Enegy ytem Laboatoy, Univeity of Nebaka-Lincoln ABTRACT An aiflow contol

More information

Analysis and Design of a 1MHz LLC Resonant Converter with Coreless Transformer Driver

Analysis and Design of a 1MHz LLC Resonant Converter with Coreless Transformer Driver Analysis and Design of a MHz C Resonant Convete with Coeless Tansfome Dive Mingping Mao, Dimita Tchobanov, Dong i 3, Matin Maez.,Tongji Univesity, Siping Rd 39, 9 Shanghai -China., Faunhofe Institute of

More information

Bidirectional Contactless Power Transfer System Expandable from Unidirectional System

Bidirectional Contactless Power Transfer System Expandable from Unidirectional System Bidiectional Contactless Powe Tansfe ystem Epandable fom Unidiectional ystem oichio Naadachi*, higeu Mochizui*, ho aaino*, Yasuyoshi Kaneo*, higeu Abe*, Tomio Yasuda** *aitama Univesity, aitama, Japan

More information

On Implementation Possibilities of High-Voltage IGBTs in Resonant Converters

On Implementation Possibilities of High-Voltage IGBTs in Resonant Converters On Implementation Possibilities of High-Voltage IGBTs in Resonant Convetes Andei Blinov and Dmiti Vinnikov Tallinn Univesity of Technology, Ehitajate tee 5, 986 Tallinn, Estonia Abstact. The conventional

More information

Design of FIR Filter using Filter Response Masking Technique

Design of FIR Filter using Filter Response Masking Technique Design of FIR Filte using Filte Response Masking Technique Sandeep Shivastava, Alok Jain, Ram Kuma Soni Abstact- In this pape autho is tying to implement Fequency esponse masking (FRM) technique. In this

More information

Design and Implementation of 4 - QAM VLSI Architecture for OFDM Communication

Design and Implementation of 4 - QAM VLSI Architecture for OFDM Communication Design and Implementation of 4 - QAM VLSI Achitectue fo OFDM Communication R. Achitha 1, S. Bhagyalakshmi 2, V. Jaya Suthi 3, D. T. Menakadevi 4 U.G. Students, Depatment of ECE, Adhiyamaan College of Engineeing,

More information

International Journal of Recent Technology and Engineering (IJRTE) ISSN: , Volume-2, Issue-2, May Mustafa Jawad Kadhim, D.S.

International Journal of Recent Technology and Engineering (IJRTE) ISSN: , Volume-2, Issue-2, May Mustafa Jawad Kadhim, D.S. Intenational Jounal of Recent Technology and Engineeing (IJRTE) ISSN: 2277-3878, Volume-2, Iue-2, May 2013 Impovement Fault-ide Though of DFIG Baed Wind Tubine by Uing a Seie Compenation Technology with

More information

Induction Motors Direct Field Oriented Control with Robust On-Line Tuning of Rotor Resistance

Induction Motors Direct Field Oriented Control with Robust On-Line Tuning of Rotor Resistance Induction Moto Diect Field Oiented Contol with Robut On-Line Tuning of Roto Reitance Mohamed-Saïd Naït-Saïd, Mohamed Benbouzid To cite thi veion: Mohamed-Saïd Naït-Saïd, Mohamed Benbouzid. Induction Moto

More information

THE UNIVERSITY OF NEW SOUTH WALES. School of Electrical Engineering & Telecommunications

THE UNIVERSITY OF NEW SOUTH WALES. School of Electrical Engineering & Telecommunications THE UNIESITY OF NEW SOUTH WAES School of Electical Engineeing & Telecommunications EE97 POWE EETONIS FO ENEWABE AND DISTIBUTED GENEATION EXAMINATION Session (Supplementay Exam) TIME AOWED: 3 hous TOTA

More information

PI and Fuzzy DC Voltage Control For Wind Pumping System using a Self-Excited Induction Generator

PI and Fuzzy DC Voltage Control For Wind Pumping System using a Self-Excited Induction Generator PI and Fuzzy DC Voltage Contol Fo Wind Pumping Sytem uing a Self-Excited Induction Geneato Rachid E AKHRIF, Ahmed ABBOU, Mohamed BARARA, Youef MAJDOUB and Noueddine SKIK Electic Engineeing Depatment, The

More information

ABSTRACT. Human perception of sound arises from the transmission of action-potentials (APs) through

ABSTRACT. Human perception of sound arises from the transmission of action-potentials (APs) through Repint fom Poceeding of the 7 th Autalian Confeence onneual Netwok, 996, Canbea ACT A Multi-Thehold Neual Netwok fo Fequency Etimation L. S. Ilicht and Ian C. Buce and G.M.Clak The Bionic Ea Intitute,

More information

Statement of Works Data Template Version: 4.0 Date:

Statement of Works Data Template Version: 4.0 Date: Statement of Woks Data Template Vesion: 4.0 Date: 16.08.17 This Statement of Woks (SoW) Data Template is to be completed by Distibution Netwok Opeatos (DNOs) in ode to povide National Gid the equied data

More information

Optic Cable Tracking and Positioning Method Based on Distributed Optical Fiber Vibration Sensing

Optic Cable Tracking and Positioning Method Based on Distributed Optical Fiber Vibration Sensing 08 5th Intenational Confeence on Electical & Electonics Engineeing and Compute Science (ICEEECS 08) Optic Cable Tacking and Positioning Method Based on Distibuted Optical Fibe Vibation Sensing Zhang Chao,

More information

THE RADIO CHANNEL IN THE VEHICULAR IDENTIFICATION

THE RADIO CHANNEL IN THE VEHICULAR IDENTIFICATION THE RADIO CHANNEL IN THE VEHICULAR IDENTIFICATION Ricado Menee*, Robeto Linae, Laua Monte Intituto Politécnico Nacional Ecuela Supeio de Ingenieía Mecánica y Eléctica, Campu Zacatenco U.P.A.L.M. Edif.

More information

A New Method of VHF Antenna Gain Measurement Based on the Two-ray Interference Loss

A New Method of VHF Antenna Gain Measurement Based on the Two-ray Interference Loss 7 nd Intenational Confeence on Atificial Intelligence and Engineeing Applications (AIEA 7) ISBN: 978--6595-485- A New Method of VH Antenna Gain Measuement Based on the Two-ay Intefeence Loss ZHIEI YANG,

More information

Analysis, Design, and Performance Evaluation of Asymmetrical Half-Bridge Flyback Converter for Universal-Line-Voltage-Range Applications

Analysis, Design, and Performance Evaluation of Asymmetrical Half-Bridge Flyback Converter for Universal-Line-Voltage-Range Applications Analysis, Design, Pefomance Evaluation of Asymmetical Half-Bidge Flyback Convete fo Univesal-ine-Voltage-Range Applications aszlo Hube Milan M. Jovanović Delta Poducts Copoation P.O. Box 1173 5101 Davis

More information

CRITICAL VOLTAGE PROXIMITY INDEX INVESTIGATION FOR TRANSMISSION SYSTEMS

CRITICAL VOLTAGE PROXIMITY INDEX INVESTIGATION FOR TRANSMISSION SYSTEMS anaction on Powe anmiion and Ditibution ISSN: 9-87 Online Publication, June 0 www.pcoglobal.com/gjto.htm P-I3/GJO CRIICL VOLGE PROXIIY INDEX INVESIGION OR RNSISSION SYSES lexi Polycapou, Haan Noui, Dan

More information

Analyze Power Supply Rejection Ratio of LDO Regulator Based on Accurate Small Signal Model

Analyze Power Supply Rejection Ratio of LDO Regulator Based on Accurate Small Signal Model Poceedings of the Intenational Confeence on Electonics and Softwae Science, Takaatsu, Japan, 05 Analyze Powe Supply ejection atio of LDO egulato Based on Accuate Sall Signal Model Po-Yu Kuo*, Gang-Zhi

More information

Analysis of influence of the ionosphere onto GNSS positioning. WP 4.4 Real Time positioning related issues

Analysis of influence of the ionosphere onto GNSS positioning. WP 4.4 Real Time positioning related issues WP 4.4 Real Time poitioning elated iue Kinga Wezka (ESR8) Techniche Univeitat Belin Depatment fo Geodey and Geoinfomation Science Nottingham 20-21. Mach, 2012 Intoduction abolute poitioning elative poitioning

More information

Efficient Power Control for Broadcast in Wireless Communication Systems

Efficient Power Control for Broadcast in Wireless Communication Systems Efficient Powe Contol fo Boadcast in Wieless Communication Systems A. T. Chonopoulos Compute Science Depatment Univesity of Texas at San Antonio San Antonio, TX Email:atc@cs.utsa.edu P. Cotae Depatment

More information

UNCERTAINTY ESTIMATION OF SIZE-OF-SOURCE EFFECT MEASUREMENT FOR 650 NM RADIATION THERMOMETERS

UNCERTAINTY ESTIMATION OF SIZE-OF-SOURCE EFFECT MEASUREMENT FOR 650 NM RADIATION THERMOMETERS XIX IMEKO Wold Congess Fundamental and Applied Metology Septembe 6 11, 29, Lisbon, Potugal UNCERTAINTY ESTIMATION OF SIZE-OF-SOURCE EFFECT MEASUREMENT FOR 65 NM RADIATION THERMOMETERS Fumihio Sakuma, Laina

More information

Wireless Communication (Subject Code: 7EC3)

Wireless Communication (Subject Code: 7EC3) COMPUCOM INSTITUTE OF TECHNOLOGY & MANAGEMENT, JAIPUR (DEPARTMENT OF ELECTRONICS & COMMUNICATION) Notes Wieless Communication (Subject Code: 7EC3) Pepaed By: LOKESH KUMAR ARYA Class: B. Tech. IV Yea, VII

More information

White Paper. Method of Modeling Differential Vias. Abstract. Issue: 2.1 Date: Jan25, 2011

White Paper. Method of Modeling Differential Vias. Abstract. Issue: 2.1 Date: Jan25, 2011 White Pape Method of Modeling Diffeential Via Iue:. Date: Jan5, 0 Lambet Simonovich, Signal Integity & Backplane Specialit, Lamim Entepie Inc., limonovich@lamimentepie.com D. Eic Bogatin, Signal Integity

More information

SPEED-SENSORLESS CONTROL STRATEGY FOR MULTI-PHASE INDUCTION GENERATOR IN WIND ENERGY CONVERSION SYSTEMS

SPEED-SENSORLESS CONTROL STRATEGY FOR MULTI-PHASE INDUCTION GENERATOR IN WIND ENERGY CONVERSION SYSTEMS Dumni}, B. P., et al.: Speed-Senole Contol Stategy fo Multi-Phae... THERMA SCIENCE: Yea 6, Vol., Suppl., pp. S48-S493 S48 Intoduction SPEED-SENSORESS CONTRO STRATEGY FOR MUTI-PHASE INDUCTION GENERATOR

More information

New Approach for Optimizing Control of Switched Reluctance Generator

New Approach for Optimizing Control of Switched Reluctance Generator New Appoach fo Optimizing Contol of Switched Reluctance Geneato R. Rebbah, A. Bentounsi and H. Benalla Abstact This pape pesents a new switching appoach that detemines the optimal contol of the Switched

More information

Analysis of the Radiation Resistance and Gain of Full-Wave Dipole Antenna for Different Feeding Design

Analysis of the Radiation Resistance and Gain of Full-Wave Dipole Antenna for Different Feeding Design Jounal of lectomagnetic Analysis and Applications, 01, 4, 35-4 http://dx.doi.og/10.436/jemaa.01.46033 Published Online June 01 (http://www.scirp.og/jounal/jemaa) 35 Analysis of the Radiation Resistance

More information

Performance Characteristics of the 10hp Induction Machine

Performance Characteristics of the 10hp Induction Machine www.ije.net ISSN (ONLINE: 5-758, ISSN (PRIN: 394-696 olue-6, Iue-1, Januay-Febuay-16 Intenational Jounal of Engineeing and Manageent Reeach Page Nube: 1-5 Pefoance Chaacteitic of the 1hp Induction Machine

More information

Highly Selective Dual-Mode Microstrip Bandpass Filters Using Triangular Patch Resonators

Highly Selective Dual-Mode Microstrip Bandpass Filters Using Triangular Patch Resonators ADVANCED ELECTROMAGNETICS, VOL. 6, NO. 1, MARCH 2017 Highly Selective Dual-Mode Micostip Bandpass Filtes Using Tiangula Patch Resonatos K.G. Avinash, I. Sinivasa Rao School of Electonics Engineeing, VIT

More information

Deadband control of doubly-fed induction generator around synchronous speed

Deadband control of doubly-fed induction generator around synchronous speed Univeity of Wollongong Reeach Online Faculty of Engineeing and Infomation Science - Pape: Pat A Faculty of Engineeing and Infomation Science 26 Deadband contol of doubly-fed induction geneato aound ynchonou

More information

An Ultra Low Power Segmented Digital-to-Analog Converter

An Ultra Low Power Segmented Digital-to-Analog Converter An Ulta Low Powe Segmented Digital-to-Analog onvete Manoj Kuma Univesity Institute of Engineeing and Technology, Mahashi Dayanand Univesity, Rohtak-4, Hayana, India. Raj Kuma Pofesso and Diecto, Mata Raj

More information

(2) The resonant inductor current i Lr can be defined as, II. PROPOSED CONVERTER

(2) The resonant inductor current i Lr can be defined as, II. PROPOSED CONVERTER A High Powe Density Soft Switching Bidiectional Convete Using Unified Resonant Cicuit Ratil H Ashique, Zainal Salam, Mohd Junaidi Abdul Aziz Depatment of Electical Engineeing, Univesity Technology Malaysia,

More information

Lecture 23. OUTLINE BJT Differential Amplifiers (cont d) Reading: Chapter

Lecture 23. OUTLINE BJT Differential Amplifiers (cont d) Reading: Chapter Lectue 23 OUTLINE BJT Diffeential Amplifies (cont d) ascode diffeential amplifies ommon mode ejection Diffeential pai with active load eading: hapte 0.4 0.6. EE05 Sping 2008 Lectue 23, Slide Pof. Wu, U

More information

Feasibility of a triple mode, low SAR material coated antenna for mobile handsets

Feasibility of a triple mode, low SAR material coated antenna for mobile handsets Loughboough Univesity Institutional Repositoy Feasibility of a tiple mode, low SAR mateial coated antenna fo mobile handsets This item was submitted to Loughboough Univesity's Institutional Repositoy by

More information

Galvanic Isolation System with Wireless Power Transfer for Multiple Gate Driver Supplies of a Medium-voltage Inverter

Galvanic Isolation System with Wireless Power Transfer for Multiple Gate Driver Supplies of a Medium-voltage Inverter IEEJ Jounal of Industy Applications Vol5 No3 pp06 4 DOI: 054/ieejjia506 Galvanic Isolation System with Wieless Powe Tansfe fo Multiple Gate Dive Supplies of a Medium-voltage Invete Keisuke Kusaka Student

More information

The Periodic Ambiguity Function Its Validity and Value

The Periodic Ambiguity Function Its Validity and Value The Peiodic Ambiguity Function Its Validity and Value Nadav Levanon Dept. of Electical Engineeing Systems Tel Aviv Univesity Tel Aviv, Isael nadav@eng.tau.ac.il Abstact The peiodic ambiguity function (PAF)

More information

10! !. 3. Find the probability that a five-card poker hand (i.e. 5 cards out of a 52-card deck) will be:

10! !. 3. Find the probability that a five-card poker hand (i.e. 5 cards out of a 52-card deck) will be: MATH 0(001 Fall 2018 Homewok 2 Solutions Please infom you instucto if you find any eos in the solutions 1 Suppose that thee ae duck huntes, each with a pefect shot A flock of ducks fly ove, and each hunte

More information

Chapter Introduction

Chapter Introduction Chapter-6 Performance Analyi of Cuk Converter uing Optimal Controller 6.1 Introduction In thi chapter two control trategie Proportional Integral controller and Linear Quadratic Regulator for a non-iolated

More information

FUZZY LOGIC BASED HPWM-MRAS SPEED OBSERVER FOR SENSORLESS CONTROL OF INDUCTION MOTOR DRIVE

FUZZY LOGIC BASED HPWM-MRAS SPEED OBSERVER FOR SENSORLESS CONTROL OF INDUCTION MOTOR DRIVE VOL., NO. 4, APRIL 21 ISSN 1819-668 ARPN Jounal of Engineeing an Applie Science 26-21 Aian Reeach Publihing Netwok (ARPN). All ight eeve. www.apnjounal.com FUZZY LOGIC BASED HPWM-MRAS SPEED OBSERVER FOR

More information

Analysis of Occurrence of Digit 0 in Natural Numbers Less Than 10 n

Analysis of Occurrence of Digit 0 in Natural Numbers Less Than 10 n meican Intenational Jounal of Reseach in Fomal, pplied & Natual Sciences vailable online at http://www.iasi.net ISSN (Pint): 2328-3777, ISSN (Online): 2328-3785, ISSN (CD-ROM): 2328-3793 IJRFNS is a efeeed,

More information

Fuzzy-based Direct Power Control of Doubly Fed Induction Generator-based Wind Energy Conversion Systems

Fuzzy-based Direct Power Control of Doubly Fed Induction Generator-based Wind Energy Conversion Systems nd Intenational econfeence on Compute and Knowledge Engineeing (ICCKE), Octobe 8-9, Fuzzy-baed Diect Powe Contol of Doubly Fed Induction Geneato-baed Wind Enegy Conveion Sytem Mohammad Pichan, Haan Ratega

More information

Frequency Calibration of A/D Converter in Software GPS Receivers

Frequency Calibration of A/D Converter in Software GPS Receivers Frequency Calibration of A/D Converter in Software GPS Receiver L. L. Liou, D. M. Lin, J. B. Tui J. Schamu Senor Directorate Air Force Reearch Laboratory Abtract--- Thi paper preent a oftware-baed method

More information

LAAS/GBAS Ground Reference Antenna With Enhanced Mitigation of Ground Multipath

LAAS/GBAS Ground Reference Antenna With Enhanced Mitigation of Ground Multipath LAAS/BAS ound Refeence Antenna With Enhanced Mitigation of ound Multipath Alfed R Lopez, BAE Systems BIORAPHY Alfed R Lopez is a Life Fellow of the IEEE He is a Hazeltine Fellow and Engineeing Fellow with

More information