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PROCEEDINGSCOMPTES RENDUSComputational Aspectsof ElectromechanicalEnergy Convertersand Drives7-8-9 July 1993

La moderationet simulationdes machines electriqueset des convertisseursstatiques7-8-9 Juillet 1993

Editeurs: Guy OLIVIER et Real-Paul BOUCHARD^

Editors: Guy OLIVIER and Real-Paul BOUCHARD

UB/TIB Hannover112 440 045

89

SESSION 0 1 : INDUCTION MOTOR DRIVESChairperson: B.T. Ooi, Canada

1 TWO-PHASE OPTIMAL REMEDIAL STRATEGY FORINVERTER-INDUCTION MACHINE SYSTEMT. Elch-Heb, J.P. Hautier, France

7 INVERTER GAIN COMPENSATION FOR OPEN LOOPAND CURRENT REGULATED PWM CONTROLLERSR.J. Kerkman, D. Leggate, B.J. Seibel, T.M. Rowan,USA

13 ANALYSIS OF VOLTAGE CONTROLLED INDUC-TION MOTORS USING QUASI-ROTATING REFER-ENCE FRAMEN.H. Kutkut, H.M. Cherradi, T.A. Lipo, USA

17 COMPUTER SIMULATION OF INSTANTANEOUSTORQUE DETECTED FROM STATOR VOLTAGESAND CURRENTS OF SQUIRREL CAGE INDUCTIONMOTORK. Takaku, Japan

SESSION O2: REAL TIME SIMULATIONChairperson: S. Lefebvre, Canada

23 REAL TIME SIMULATION OF POWER SYSTEMSSTABILITY USING PARALLEL DIGITAL SIGNALPROCESSORSM. Lavoie, V. Que-Do, J.L. Houle, J. Davidson,Canada

29 DIGITAL REAL TIME SIMULATION OF TRANSMIS-SION LINES USING PARALLEL PROCESSORSH. Le-Huy, J.-C. Soumagne, Canada

33 REAL TIME COMPUTATION BY PARALLEL DSPSFOR CONTROL AND SIMULATIONB.T. Ooi, H.C. Lee, F.D. Galiana, Z. Wolanski,X. Wang, Y. Guo, Canada

39 UTILIZATION OF REAL TIME MODELS FOR THESURVEY AND MAINTENANCE OF HIGH POWERELECTROTECHNICAL SYSTEMSH. Schneider, M. Metz, H. Piquet, H. Foch,J . Courault, O. Lapierre, France

SESSION P1: THERMAL ASPECTSChairperson: L. Pierrat, France

45 COMPUTER ASSISTED IDENTIFICATION ANDMEASUREMENT OF A SEMICONDUCTOR DEVICE-HEATSINK THERMAL SYSTEMZ. Bencic, Z. Jakopovic, D. Mrkoci, Croatia

49 NUMERICAL METHODS FOR COUPLED THERMALAND ELECTRIC FIELDS IN AXISYMMETRICDEVICES0. Bottauscio, M. Chiampi, D. Chiarabaglio,G. Crotti, Italy

55 ESTIMATION OF IRON LOSSES IN ELECTRICALMACHINES USING FINITE ELEMENT METHODF. Dumas, J.-M. Biedinger, D. Lemoine, France

61 THE CONTROL OF TEMPERATURE IN AN INDUC-TION HEATING SYSTEM BY AN L.F. GENERATORY.M. Li, J . Fouladgar, France

67 ELECTROTHERMAL MODELING OF INDUCTIONMOTOR USING FLUX2D NUMERICAL CODEC. Ortiz, A. Skorek, A. Sevigny, M. Zaremba,Canada

71 TEMPERATURE DISTRIBUTION OF A VENTRICU-LAR ASSIST DEVICE ACTIVATED BY A BRUSH-LESS DC MOTORY. Perriard, M. Jufer, Switzerland

SESSION 03: MOTOR PARAMETER IDENTIFICATIONChairperson: R. Krishnan, USA

77 AN ALTERNATIVE METHODOLOGY FOR OBTAIN-ING PARAMETERS AND CHARACTERISTICS OFTHREE-PHASE INDUCTION MOTORSA.T.L. Almeida, E. Ruppert Filho, J.A. Lamoglia,Brazil

83 SIMULATION OF A NEURAL NET CONTROLLERFOR MOTOR DRIVESE.A. Castillo Saturno, L.E. Borges da Silva,G. Lambert Torres, Brazil; X.D. Do, Canada

89 ESTIMATION OF SYNCHRONOUS MACHINEPARAMETERS FROM MULTISINE SSFR TESTDATAB. Mpanda-Mabwe, K. Beya, M. Crappe,M. Delhaye, Belgium

95 ROBUST DECOMPOSED ALGORITHMS FOR SPEEDAND PARAMETER ESTIMATION IN INDUCTIONMACHINESM. Velez-Reyes, G.C. Verghese, USA

101 NUMERICAL DETERMINATION OF ELECTRICALPARAMETERS OF AN INDUCTION MOTORA. Yahiaoui, F. Bouillault, France

SESSION 04: SIMULATION TECHNIQUESChairperson: J.-L. Houle, Canada

105 STABILITY ANALYSIS OF A NON-PARK-TRANSFORMABLE ELECTRICAL MACHINE MODELF. Bhathena, G.C. Verghese, USA; M. Poioujadoff,France

111 MODELLING AND CONTROL OF VARIABLEFREQUENCY CONVERTERSA. Oukaour, B. Le Pioufle, J.-P. Louis, F. Forest,France

117 ALGORITHMS FOR DIRECT DETERMINATION OFSTEADY-STATES IN ELECTROMECHANICALENERGY CONVERTERST.J. Sobczyk, Poland

123 FINITE ELEMENT SIMULATION OF A PERMANENTMAGNET GENERATOR FEEDING A RECTIFIERBRIDGEJ. Vaana'nen, Finland

129 VARIABLE-TOPOLOGY SIMULATION OF STATICCONVERTERS: A NEW APPROACHJ.H. Xu, S. Saadate, B. Davat, France

SESSION P2: SYSTEM SIMULATIONChairperson: A. Skorek, Canada

135 ANALYTICAL STUDY OF THE SET: AC-ACCONVERTER-TRANSFORMER-RECTIF IER-CAPACITORJ.L. Cocquerelle, V. Tortel, France

141 FUZZY MODEL IDENTIFICATION WITH DYNAMICMODEL SEPARATION APPLIED TO A MOTORDRIVE SYSTEMP.J. Costa Branco, J. Esteves, J.A. Dente,Portugal

147 POSTMAC. A POWERFUL SYSTEM FOR DIGITALSIMULATION OF CONVERTER-INDUCTIONMACHINE ASSEMBLIESB. Dagues, F. Chouzal, X. Roboam, France

153 ADVANCED MODELING OF ADJUSTABLE SPEEDAC-MOTOR DRIVES USING PSPICEM. Giesselmann, USA

159 ANALYTICAL STUDY OF A SET: THREE-PHASEAC/AC CONVERTER TAKING INTO ACCOUNT THEMAGNETIC CORE SATURATIONA. Mamoune, J.L. Cocquerelle, France

165 TRANSIENT PERFORMANCE OF AUTONOMOUSSELF EXCITED INDUCTION GENERATOR SYSTEMKh.S. Sakkoury, D.W. Novotny , USA;F.M.H. Khater, F.I. Ahmed, Egypt

171 A NEW MODULAR APPROACH TO MODELLINGOF CONVERTER FED INDUCTION MOTORS.A. Sudha, A. Chandrasekaran, USA; V. Rajagopa-lan, Canada; H. Mehta, USA

SESSION 05 : INDUCTION MACHINESChairperson: G. Roy, Canada

177 MODELING OF SUB-SYNCHRONOUS CASCADE INSTEADY STATE USING DOUBLY FED MACHINETHEORYC. El-Asmar, K. Al-Haddad, L. Dessaint, Canada

183 PERFORMANCE PREDICTION AND ANALYSIS OFSHADED POLE INDUCTION MOTORS CONSIDER-ING ASYMMETRICAL FLUX DISTRIBUTION ANDSATURATION EFFECTSJ. Faiz, M.R. Feyzi, K.B. Ali-Abbasi, Iran

189 STEADY STATE AND TRANSIENT THERMALBEHAVIOUR OF AN INDUCTION MOTORR. Glises, A. Miraoui, J.M. Kauffmann, France

195 MODELLING IN VIEW OF SIMULATION OF ADOUBLY FED ASYNCHRONOUS MACHINEM. Machmoum, R. Le Doeuff, E. Gudefin,V. Ramaromisa, France

203 A COMPUTATION METHOD FOR INDUCTIONMOTORS IN STEADY STATEB. Laporte, G. Vinsard, J.C. Mercier, France

SESSION 06: EMTPChairperson: V.K. Sood, Canada

207 TRANSFORMER MODELING FOR HIGH FREQUEN-CIESX.D. Do, J . Ndayizamba, A.O. Ba, M. El Kahel,Canada

213 DESCRIPTION AND TYPICAL EMTP APPLICATIONSOF STATIC COMPENSATOR MODELSS. Lefebvre, L. Gerin-Lajoie, G. Beaulieu, Canada

221 AN EFFICIENT ALGORITHM FOR THE STEADY-STATE ANALYSIS OF POWER SYSTEM MODELSINCLUDING POWER ELECTRONIC COMPONENTSG. Murere, S. Lefebvre, X.D. Do, Canada

229 TREATMENT OF DISCONTINUITIES IN TIME-DOMAIN SIMULATION OF SWITCHED NETWORKSA.-R. Sana, J. Mahseredjian, X.D. Do, H. Dommel,Canada

235 MODELLING OF A THREE PHASE DIESEL-BATTERY-INVERTER HYBRID ENERGY SYSTEME. Vasu, C.V. Nayar, D.R. Pack, S.J. Phillips,Australia; A. Leblanc, Canada

SESSION P3: MACHINE CONTROLChairperson: G. Lambert Torres, Brazil

241 ADAPTIVE NONLINEAR TORQUE CONTROL OF ASWITCHED RELUCTANCE MOTOR VIA FLUXOBSERVATIONL. Ben Amor, L.A. Dessaint, O. Akhrif, G. Olivier,Canada

249 IMPROVED POSITION CONTROL OF A BRUSHLESSSERVO MOTORJ. Esteves, J. Santana, J.A. Dente, Portugal

255 DISCRETIZATION PROBLEMS RELATED TO AFULLY DIGITAL CONTROL SYSTEM FOR PMSYNCHRONOUS ACTUATORSY. Fu, S. Yala, B. Robyns, F. Labrique, H. Buyse,Belgium

261 SIMULATION STUDY OF A CASCADE STATE-FEEDBACK CONTROL OF A CSI-SCSMM.F. Khene, M.S. Boucherit, L. Nezli, Algeria

267 CURRENT FEEDING OF SWITCHED RELUCTANCEMOTOR. OPTIMIZATION OF THE CURRENTWAVEFORM TO MINIMIZE THE TORQUE RIPPLEJ.Y. Le Chenadec, B. Multon, S. Hassine, France

273 METHODOLOGY OF STUDY OF AN ELECTRONICDRIVE INFLUENCE OF THE NUMBER OF PHASES:APPLICATION TO A BRUSHLESS MOTORA. Miraoui, J.M. Kauffmann, France

279 SIMPLIFIED PROCEDURES FOR ROTOR FIELDORIENTED CONTROL OF VOLTAGE-SOURCEINDUCTION MOTOR DRIVESJ.P. Palma, J.G. Dente, F.J. Carvalhal, Portugal

SESSION 0 7 : MODELS OF ELECTRIC AND MAGNETICCOMPONENTS

Chairperson: D.K. Tran, Canada

285 DYNAMIC BEHAVIOUR MODELING OF FERRO-MAGNETSM.N. Berdai, P. Favier, H. Schoorens, France

289 3D CALCULATION OF PERMANENT MAGNETINTERACTIONSJ. Delamare, E. Olivier-Rulliere, J.-P. Yonnet,J . Bigeon, France

293 SIMULATION OF THE REAL COMMUTATIONPROCESS IN A DC MACHINEZ. Simunic, Croatia

299 A PHYSICAL MODEL FOR THE NUMERICALSIMULATION OF ARC-BLOWN CIRCUIT-BREAKERSX.D. Zhang, J.-Y. Trepanier, R. Camarero, Canada

SESSION 08: MACHINE DESIGNChairperson: H. Le Huy, Canada

305 OPTIMUM DESIGN OF PM SYNCHRONOUSMACHINES WITH CENTRALIZED COILSA. Ben Ahmed, P.F. Desesquelles, J . Lucidarme,France

311 SPCAD, A TOOL FOR COMPUTER AIDED DESIGNOF SINGLE-PHASE INDUCTION MOTORSH.B. Ertan, M. Aftahi, Turkey

317 ASYNCHRONOUS AND PM SYNCHRONOUSMOTOR WITH GAP CASE MODELINGM. Jufer, M. Kudelski, J.-P. Ludwig, Switzerland

321 COMPUTATIONAL ASPECTS OF PM BRUSHLESSDC LRECM MACHINE USING 2D FINITE ELEMENTMODELLINGL.M.C. Mhango, United Kingdom

SESSION P4: ELECTRICAL MACHINESChairperson: K. Al-Haddad, Canada

327 HOW TO DEVELOP AN EXPERT SYSTEM FORDIAGNOSIS AND MAINTENANCE AID IN LARGEELECTRIC VARIABLE SPEED DRIVE APPLICATIONSS. Ahrens, J . Bigeon, D. Poupart, France

333 MODELLING OF AN ASYNCHRONOUS MACHINEUSING PERMEANCE NETWORK AND BOND-GRAPH METHOD FOR COUPLED ELECTRIC ANDMAGNETIC CIRCUITS RESOLUTIONC. Delforge, B. Lemaire-Semail, P. Brochet, France

339 A LINEARIZED MODEL OF CURRENT SOURCESATURATED INDUCTION MOTORB.I. Jeftenic, N. Mitrovic, Yugoslavia

345 SIMULATION OF ROTATING SYNCHRONOUSMACHINES BY MEANS OF COUPLED NETWORKMODELSM. Hecquet, P. Brochet, B. Lemaire-Semail, France

351 ANALYSIS OF THE STATE SPACE MODEL OFINDUCTION MACHINESS. Siala, R. Le Doeuff, M. Pietrzak-David,B. de Fornel, France

357 MODELLING OF A HIGH FREQUENCY POWERTRANSFORMER - 3D MAGNETODYNAMIC CALCU-LATION OF PARAMETERSS. Tabaga, L. Pierrat, A. Foggia, France

363 SIMULATION OF TRANSIENT PERFORMANCE OFSMALL PERMANENT MAGNET DC COMMUTATORMOTORS USING THE FINITE ELEMENT METHODM. Wing, J.F. Gieras, South Africa

SESSION 09 : SWITCHMODE CONVERTERSChairperson: G. Joos, Canada

367 A NEW SINGLE PHASE AC/DC BUCK-BOOSTCONVERTER WITH UNITY POWER FACTORM.C. Ghanem, K. Al-Haddad, G. Roy, Canada

373 SIMULATION OF SWITCHMODE POWER CON-VERTERO. Gillieaux, Belgium

379 LOW-VOLTAGE QUASI-RESONANT FORWARDMODELLINGB. Robert, C. Goeldel, France

385 EXTENSION OF THE HYBRID ANALYSIS METHODFOR NUMERICAL SIMULATION WITH VARIABLETOPOLOGY OF SWITCHED POWER CONVERTERS- INTEREST OF THE STATE PETRI NETSFORMALISMP. Yao, S. Glao, G. Manesse, France

SESSION 010 : FIELD ORIENTED CONTROLChairperson: P. Viarouge, Canada

393 INFLUENCE OF DAMPERS ON THE DYNAMICBEHAVIOUR OF ORIENTED FIELD CONTROLLED OFPERMANENT MAGNET SYNCHRONOUSMACHINESM. Ouriagli, F. Meibody Tabar, F.M. Sargos, France

397 PERFORMANCE ANALYSIS OF A SIMPLIFIEDINDIRECT FIELD ORIENTED CONTROL ALGORITHMFOR SMALL POWER INDUCTION ACTUATORSB. Robyns, F. Labrique, H. Buyse, Belgium

403 INDIRECT FIELD ORIENTED CONTROL OF INDUC-TION MACHINE UTILIZING A REACTIVE POWERPERTURBATION SCHEMEC. Sun, X. Luo, T.A. Lipo, USA

409 SIMULATION OF VECTOR-CONTROLLED INDUC-TION MOTOR DRIVESP.Vas, J. Li, United Kingdom

SESSION P5: CONVERTERS 1Chairperson: S. Saadate, France

415 SIMULATION AND EVALUATION OF CURRENTCONTROL TECHNIQUES FOR THREE PHASEAC-DC POWER CONVERTERSL.J. Borle, C.V. Nayar, Australia

421 DESIGN OF CONTROL LAWS FOR SWITCHINGPOWER CONVERTER BASED ON THE OUTPUTFILTER ENERGY CONSIDERATIONM. Fadel, Y. Cheron, France

425 DESIGN OF A THREE-PHASE PWM UPS CONTROLSYSTEM USING THE COUNTER NUMBER METHODH. Fernandez, M.I. de Guzman, V.M. Guzman,Venezuela

431 DOUBLE PREDICTIVE CONTROL FOR POWERRECTIFIERS: PERFORMANCE ASSESSMENT BYCOMPUTER SIMULATIONJ. Fernando Silva, Portugal

437 SIMULATION OF A NON CONVENTIONAL HIGHCURRENT LOW VOLTAGE POWER CONVERTERWITH EMTPC. Guimares, G. Olivier, G.-E. April, Canada

445 DESIGN AND SIMULATION OF A HIGH VOLTAGEDC SOURCEM. El Kahel, G. Olivier, C. Guimares, G.-E. April,Canada

451 NEW HIGH POWER FACTOR RECTIFIER USINGSOFT COMMUTATED SWITCHESM. Tou, R. ChaffaT, K. Al-Haddad, G. Olivier,V. Rajagopalan, Canada

SESSION 0 1 1 : CONVERTERS AND POWER ELECTRONICSChairperson: G.-E. April, Canada

457 PARALLELING A FAST AND A SLOW IGBTD. Bergogne, A. Jaafari, H. Bahaki, France

461 POWER MOSFET MODELLING BASED ON ITSBEHAVIORE. Farjah, J.-L. Schanen, J. Roudet, J.P. Ferrieux,France

467 CURRENT CONTROLLED AC/DC CONVERTERS:HARMONICS IN TRANSIENT STATEV. Katie, D. Dapcevic, V. Vuckovic, Yugoslavia

473 PERFORMANCE ANALYSIS OF AN AC/DC CON-VERTER WITH HIGH POWER FACTOR USINGDEDICATED SOFTWARE MEDIAA. Pastravanu, D. Alexa, M. Lucanu, Romania

477 AUTOMATIC MODELLING OF POWER STATICCONVERTERS BY PARALLEL PETRI NETSF. Yan, L. Shi, G. Manesse, France

SESSION O12: STEP AND RELUCTANCE MOTORSChairperson: L.-A. Dessaint, Canada

483 VECTOR CONTROL OF PM HYBRID STEPPINGMOTOR WITH TRACKING TORQUEM. Imecs, A. Kelemen, R. Marschalko, C. Rusu,Romania

489 COMPUTER AIDED ENGINEERING IN DESIGN ANDANALYSIS OF SWITCHED RELUCTANCE MOTORDRIVESR. Krishnan, P. Ramakrishna, USA

495 SIMULATION OF DYNAMIC BEHAVIOUR OFHYBRID STEP MOTOR OPERATING IN SELFSYNCHRONIZED MODEA. Pittet, K. Muthukumar, India; K. Debebe,V. Rajagopalan, Canada

501 AN EXPERIMENTALLY VERIFIED VARIABLERELUCTANCE MACHINE MODEL IMPLEMENTED INTHE SABERtm CIRCUIT SIMULATORD.A. Torrey, USA

507 FIELD ORIENTED CONTROL OF A SMOOTHSTATOR VARIABLE RELUCTANCE MACHINE.COMPARISON BETWEEN TWO MODELS: WITHAND WITHOUT DAMPERSA. Tounzi, F. Meibody Tabar, F.M. Sargos, France

SESSION P6: CONVERTERS 2Chairperson: M. Metz, France

513 PC-PROGRAM WITH GRAPHIC PRESENTATIONFOR FAST INTERACTIVE DESIGN DECISIONS FORSNUBBER CIRCUITSM.A.E. Andersen, H. Havemann, Denmark

519 ANALYSIS OF POWER ELECTRONIC CONVERTERSBY RECURRENCE EQUATIONSJ.-P. Conard, H. Buyse, F. Labrique, Belgium

527 USE OF SENSITIVITY FUNCTIONS IN ELECT-RICAL ENGINEERINGD. Flieller, J.P. Louis, France

533 REAL TIME SIMULATION REQUIREMENTS FORSTUDY AND OPTIMIZATION OF CONTROLS OFHIGH POWER STATIC CONVERTERS USED INTRANSMISSION SYSTEMSH. Nakra, D. McCallum, A. Venne, Canada

537 DIMENSION OF ACTIVE FILTER ASSOCIATEDWITH A DIMMER AND A BRIDGE RECTIFIERF. Rabbouch, G. Manesse, France

543 NONLINEAR OPTIMIZATION TECHNIQUES FORTHE DESIGN OF STATIC CONVERTERSP. Viarouge, F. Tourkhani, I. Kamwa, H. Le-Huy,Canada

SESSION 013: POWER SYSTEMSChairperson: J. Mahseredjian, Canada

549 PERTURBATION METHOD FOR THE CONTINUA-TION OF SUB-HARMONIC AND HARMONIC STATESOF PARALLEL FERRORESONANT CIRCUITSK. Ben Driss, C. Kieny, B. Lorcet, France

555 A NEW APPROACH OF CONTROL BY MODEL OF AVOLTAGE SOURCE GTO ACTIVE POWER FILTERC. Lott, J.H. Xu, S. Saadate, B. Davat, France

561 EIGENVALUE ANALYSIS OF AC TRANSMISSIONSYSTEMS WITH STATIC COMPENSATORSD. Ndereyimana, S. Lefebvre, L. Gerin-Lajoie,Canada

569 EFFECT OF SUBSYNCHRONOUS RESONANCES ONSTATIC VAR COMPENSATORSG. Sybille, P. Giroux, L. Gerin-Lajoie, Canada

SESSION 014: SATURATIONChairperson: G.C. Verghese, USA

577 TRANSIENT BEHAVIOR COMPARISON OF SATU-RATED INDUCTION MACHINE MODELSM. Osama, K. Sakkoury, T.A. Lipo, USA

581 MODELLING OF SATURATION IN SALIENT-POLEA C MACHINESJ. Robert, M. Vlemincq, Belgium

585 A GENERALIZED MODEL OF SATURATED SYN-CHRONOUS MACHINESS.A. Tahan, I. Kamwa, P. Viarouge, M. Ferfra,Canada

591 DIGITAL SIMULATION OF SATURATED DOUBLE-CAGE INDUCTION MACHINESP. Vas, J. Li, United Kingdom

SESSION P7: ELECTRICAL MACHINES (PARAMETERSIDENTIFICATION)

Chairperson: B. Davat, France

597 THEORETICAL STUDY OF AN ELECTRICALDIFFERENTIAL MOTOR WITH A FREE PERMANENTMAGNET ROTOR0. Crelerot, F. Bernot, J.M. Kauffman, France

603 IDENTIFICATION OF SOLID-ROTOR ASYNCHRO-NOUS-MACHINE PARAMETERS FROM STAND-STILL TESTS IN THE TIME DOMAIN USINGNONLINEAR TECHNIQUESM. Ferfra, P. Viarouge, I. Kamwa, S.A. Tahan,H. Le-Huy, Canada

609 RIGOROUS DEFINITION OF THE TRANSFORMA-TION RATIO IN THE PRESENCE OF MAGNETICSATURATION AND LEAKAGESM. Garrido, Portugal; N. Janssens, J.P. Conard,E. Dejaeger, E. Matagne, Belgium

613 CALCULATION METHOD OF SATURATED MAG-NETIC CIRCUITS FOR THE CAD OF ELECTRICALMACHINESR. Gagnon, P. Viarouge, I. Kamwa, H. Le-Huy,Canada

619 COMPUTATIONAL STRATEGIES FOR DESIGNORIENTED STEPPING MOTOR MODELLINGA. Di Gerlando, I. Vistoli, Italy

625 A NEW APPROACH FOR THE PARAMETERDETERMINATION OF THE PERMANENT-MAGNETSYNCHRONOUS MACHINEH. Kateb, S. Chekou, Algeria; S. Allano, France

631 OPTIMAL DESIGN FOR AN AUTOSYNCHRONOUSMOTOR WITH INSET PERMANENT MAGNETSB. Laporte, M. Chabane, R. Ibtiouene, France

637 ADAPTATION OF SYNCHRONOUS MACHINEPARAMETERS FOR USE IN POWER SYSTEMSB. Mpanda-Mabwe, M. Crappe, M. Delhaye,Belgium

SESSION 015: SIMULATION TECHNIQUESChairperson: B. Laporte, France

643 POWER ELECTRONICS SIMULATION LABORA-TORY USING "SIMULINK" DYNAMIC SYSTEMSANALYSIS PACKAGEF. Flinders, S. Senini, W. Oghanna, Australia

651 A NEW SIMULATION ON MINI-COMPUTERS OFSTATIC CONVERTERS USED IN POWER SYSTEMSR. Mohamedi, D.K. Tran, Canada

657 AN EFFICIENT APPROACH IN SIMULATING POWERCONVERTERS AND SYSTEMSM. Pande, H. Jin, G. Joos, Canada

663 AN INTEGRATED APPROACH TO SIMULATION OFPOWER ELECTRONIC CIRCUITS AND SYSTEMSV.V. Sastry, India; D. Metzner, D. Schroder,Germany

SESSION 016: DRIVESChairperson: A. Chandrasekaran, USA

669 COMPARISON OF TWO DIFFERENT CURRENTCONTROL STRATEGIES OF PERMANENT MAGNETEMBARKED ACTUATORH. Bouzekri, F. Meibody Tabar, B. Davat,O. Gosselin, France

675 COMPUTER BASED SYMBOLIC ANALYSIS ANDSIMULATION OF THE CONTROL OF CONVERTER-MACHINE DRIVESL. Gerbaud, J. Bigeon, G. Champenois, France

681 MODELING FOR CONTROL OF A NON-SINEWAVEPERMANENT MAGNET SYNCHRONOUS DRIVE BYAN EXTENSION OF THE PARK'S TRANSFORMA-TIOND. Grenier, J.-P. Louis, France

685 INTRODUCTION TO EASY-TO-USE SIMULATIONSYSTEM FOR ELECTRICAL DRIVE SYSTEMSA. Kern, U. Kunz, Germany

SESSION P8: POWER SYSTEMS AND MISCELLANEOUSChairperson: V. Rajagopalan, Canada

691 ANALYSIS OF HVDC UNIT CONNECTION GENERA-TIONJ. Daldegan, A.S. Pedroso, G.A. Soares, Brazil

697 AN ATTEMPT TO MODEL AN INDUCTION PLASMATORCH ASSOCIATED TO AN HF GENERATORG. Develey, France

701 FAULT PRE-DIAGNOSIS OF A DIESEL ENGINEUSING THE MULTIPLE AUTOREGRESSIVE MODELAND AN ARTIFICIAL NEURAL NETWORKD.X. Shen, T.H. Tang, Y.L. Zhan, P.R.China

707 TREATMENT OF REACTIVE POWER GENERATORSLIMITS BY A LOCAL APPROACH SOLUTION INPOWER SECURITY ANALYSISN. Hadjsaid, J.C. Sabonnadiere, J. Roudet,C. N6rin, France

713 STABILITY OF VARIABLE STRUCTURAL CON-TROLLED NON-AUTONOMOUS SYSTEM EXIS-TENCE AND STABILITY OF CLOSED ORBITT. Hikihara, Japan

717 STOCHASTIC MODELLING OF DIELECTRIC FAI-LURE RISK OF A TRANSFORMER DUE TO INSU-LATING OIL POLLUTIONL. Pierrat, France

721 FAST CALCULATION OF LOAD TO BE SHEDBASED ON VOLTAGE CRITERIONT. Tran Quoc, J. Fandino, L. Pierrat, J.C. Sabonna-diere, H. Vu, France

727 NEW METHOD FOR CALCULATION OF LOADSHEDDING TO AVOIT RISKS OF VOLTAGECOLLAPSET. Tran Quoc, J. Fandino, L. Pierrat, J.C. Sabonna-diere, H. Vu. France