ACEMP’92

 

 

TABLE OF CONTENTS

 

 

VOLUME I

 

 

Session 1A: INDUCTION MOTOR CONTROL

 

 

Wednesday, May 27

 

 

10:45- 12:30

 

 

Chair: Prof.Dr. P.K. Budig

 

 

Selection of Microprocessor Features for I-w Feeding Strategy of Induction Motors

R. Di Stefano, M. Scarano, Universita di Napoli, Italy

1

 

Power Saving in the VSI Fed Induction Motor Drive

S. Halasz, M. Hunyar, T. Molnar, K. Veszpremi, K. Vincze, Technical

Univ. of Budapest, Hungary

5

 

Two-phased Inverter Supplied Induction Motors

I.A. Mohammed, A.J. Bielal, University of Baghdad, Iraq

11

 

Optimal Speed Control of Squirrel Cage Induction Motor

M. Gokasan, O.S. Bogosyan, T. Kutman, lstanbul Technical

University, Turkey

19

 

A Method of Controlling the Speed of a Single-Phase Induction Motor with AuXiliary Winding

A. S. Akpýnar, R. Yazici, I. Kaya, Karadeniz Technical University,

Turkey

24

 

Session 1B: INDUCTION MOTORS: SIMULATION

 

 

Wednesday, May 27

 

 

10:45- 12:30

 

 

Chair: Prof.Dr. G.A. Capolino

 

 

Frequency Analysis of Rotor Current of Three-Phase Squirrel-Cage Induction Motor

W. Jarzyna, Lublin Technical University, Poland

80

 

Single Phase Operation of a Three Phase Induction Motor

J. Nazarzadeh, M. Mirsalim, Amirkabir University, Iran

34

 

Direct Phase Modeling of Single-Phase Capacitor Motor and Measurement of Its Parameters

C. Gurunlu, Karadeniz Technical University, Turkey

89

 

Modeling and Simulation of Double-Cage Induction Motor Dynamics

D. Rauski, E. Levi, University of Novi-Sad, Yugoslavia

43

 

Switching-on of an Accelerating, Asynchronous Generator Using a Magnetic Switch and Extra Stator Resistances

W. Deleroi, J.B. Woudstra, Technical University of Delft, Netherlands

49

 

Connecting an Asynchronous Generator on the Grid Using a Thyristor witch

W. Deleroi, J.B. Woudstra, Technical University of Delft, Netherlands

55

 

Session 1C: VARIABLE RELUCTANCE MOTORS

 

 

Wednesday, May 27

 

 

10:45- 12:30

 

 

Chair: Prof.Dr. H.B. Ertan

 

 

Rewinding of a Conventional Induction Motor as a Switched Reluctance Motor

J. Faiz, A. A. Khamenian, S. Ghasemzadeh, University of Tabriz, Iran

61

 

Dynamic Analysis and Optimal Control of the Switched Reluctance Motor

M. Cundev, L. Petkovska, University of Skopje, Macedonia

67

 

A Study of Instability of Hybrid Step Motors

V.D. Lazarov, R.V. Dinov, Z.J. Zarkov, Technical University of Sofia,

Bulgaria

73

 

Session 2A: INDUCTION MOTORS: VECTOR CONTROL

 

 

Wednesday, May 27

 

 

14:00- 15:30

 

 

Chair: Prof.Dr. T.A. Lipo

 

 

Speed-Sensorless Vector Control of Induction Motor Using MRAS

K.Y. Kim, T.K. Lee, D.S. Hyun, Hangyang University, Korea

78

 

Rotor Resistance Adaptation for Indirect Field Oriented Control of AC Induction Motor

A. Planinc, L. Kumin, K. Jezernik, University of Maribor, Slovenia

83

 

Tuning of Field Oriented Control Drives Using a Simple On-line Test Procedure

C. Cavallaro, E. Cerruto, A. Consoli, A. Raciti, A. Testa, Universita di

Catania, Italy

89

 

Sensorless Vector Control of Induction Motor Compensating the Variation of Rotor Resistance

C.H. Park, T.K. Lee, D.S. Hyun, Hangyang University, Korea

97

 

Constant Main Flux Controller of Induction Machine without Using Speed Sensor

W. Deleroi, J.B. Woudstra, Technical University of Delft, Netherlands

102

 

Compensation for Rotor Resistance Variation in Indirect Vector Control

N.S. Bayindir, T. Oranc, E. Narli, Dokuz Eylul University, Turkey

108

 

Session 2B: VARIABLE RELUCTANCE MOTORS

 

 

Wednesday, May 27

 

 

14:00- 15:30

 

 

Chair: Prof.Dr. M. Jufer

 

 

The Impact of End-Springs and Excitation Coil's Resistance on the Performance of a Linear Reluctance Self-Oscillating Motor

E.A. Mendrela, Z.J. Pudlowski, The University of Sydney, Australia

113

 

A Linear Switched Reluctance Motor

N. Locci, I. Marongiu, Universita di Cagliari, Italy

118

 

A Method for Calculating Switched Reluctance Motor Core Losses

D.A. Philips, L.R. Dupre, State University of Gent, Belgium

124

 

Teaching Stepping Motor Control Strategies Using IBM - PC/XT/AT Computers

V. Trifa, R. Munteanu, Polytechnic Inst. of Cluj, Romania

130

 

Test Procedures for Part_meter Identification in Small V.R. Motors

A. Del Pizzo, Universita di Napoli, Italy

136

 

Session 2C: NUMERICAL FIELD SOLUTION

 

 

Wednesday, May 27

 

 

14:00- 15:30

 

 

Chair: Prof.Dr. J. Turowski

 

 

Automatic Generation of Grids for Studying Electrical Machines by Finite Element Method

G. Cannistra, G. Negro, M. Sylos Labini, Polytechnic of Bari, Italy

141

 

Study of the Temperature Distribution inside Electric Rotating Machines. Comparison between the Experimental Determination

J. Roger Folch, Univ. Politecnica de Valencia, G. Jimenez, Univ.

Castilla -La Mancha, Spain

145

 

Thermal and Mechanical Analysis in an Induction Machine Rotor by Finite Element Method

G. Cannistra, G. Conte, M. Sylos Labini, Polytechnic of Bari, Italy

150

 

Handling Binary Constraints in CAE of Electrical Machines

F. Caricchi, F. Crescimbini, A. Di Napoli, E. Santini, Univ. di Roma "La

Sapienza", Italy

155

 

 

A Novel Approach for the Analysis of Induction Through Heating of Cylindrical Work-Pieces

O. Tanboga, ASELSAN, M. Ermis, H. Tosun, A. Ertas, Middle East

Technical Univ., Turkey

776

 

 

Effects of Hysteresis on Magnetic Field Distributions, Eddy Currents and Losses in Steel Laminations

S. Akpinar, I. Kaya, Karadeniz Technical University, H. Kurum, M.

Cebeci, Firat University, Turkey

160

 

 

Comparison of Performances of Brushless Electronically Controlled Small DC Motors with Various Magnetic Circuits

M. Rizzo, University of Palermo, Italy

166

 

Session 3A: POWER ELECTRONICS: PROBLEMS

 

 

Wednesday, May 27

 

 

15:45 - 17:30

 

 

Chair: Prof.Dr. B.K Bose

 

 

Study into High Power PFN to Optimize Pulse Current Wave Shape

M. Alci, B.S. Yilbas, Erciyes University, Turkey

171

 

EMTP Simulation of Power Electronics and Drives Using Data Modularization

J.A. Martinez-Velasco, Univ. Politecnica de Catalunya, Spain, G.A. Capolino, Mediterranean Inst. of Tech., France

176

 

Computer Aided Design of Filter Parameters Used in Power Inverters

F. Bayraktar, C.R. Dikici, EGES A.S., Turkey

183

 

Simulation of AC-DC Power Converters by SPICE

M.H. Rashid, Purdue University, USA

189

 

Analytical Optimization of Regular-Sampled PWM Waveforms

O. Kukrer, Eastern Mediterranean Univ,, H. B. Ertan, Middle East

Technical Univ., Turkey

194

 

The IGBT - A Spice Semiconductor Switch Model

F. Mihalic, T. Dogsa, M. Milanovic, K. Jezernik, University of Maribor,

Slovenia

198

 

A New Method of Symmetrizing Perfectly 50 Hz Single Phase Railway Load

H. Gutt, A. Muller, University of Stuttgart, Germany

204

 

Session 3B: DESIGN

 

 

Wednesday, May 27

 

 

15:45 - 17:30

 

 

Chair: Prof.Dr. R.K. Apostolov

 

 

Analysis of the Bilateral Radial Ventilation System of Induction Motors

S.Y. Guenov, Technical University of Sofia, P.I. Florov, V.T. Gaidarov,

IRLHVE, G.T. Todorov, C.C. Ibeh, Technical University of Sofia, Bulgaria

210

 

 

P/M Rotors for Electrical MOtors

O. Kasaty, J. Szajdak, B. Weglinski, Technical Univ. of Wroclaw, Poland

216

 

 

Cooling Media Mass Flow Influence on Heat Fields of Induction Motor

S. Ferkolj, B. Stefancic, R. Fiser, J. Urban, Faculty of Elec. and Comp.

Eng., Slovenia

221

 

 

Influence of Magnetic Circuit Dimensions on the Performance of a DC Commutator Motor with Segmental Barium Ferrite Permanent

J.F. Gieras, R. Kgoroeadira, M. wing, University of Cape Town, South Africa

227

 

 

Cooling Analysis and Simulation in an Electromagnetic Device using CAD/CAE Techniques

J.A.D. Pinto, C.F.R.L. Antunes, A.P.B. Coimbra, University of Coimbra, Portugal

231

 

 

A New Magnetic Materials Model and Applications

M.N. Berdai, P. Favier, H. Schoorens, ENSTIMD, France

235

 

PLENARY SESSION

 

 

Thursday, May 28

 

 

09:00- 10:30

 

 

Chair: Prof.Dr. T.A. Lipo

 

 

Trends of the Developments of Electrical Machines

P.K. Budig, Technical Univ. of Chemnitz, Germany

239

 

 

Automation of the Design Process for Electrical Machines

A.G. Jack, Univ. of Newcastle upon Tyne, UK

255

 

 

CAD and Simulation of Electrical Machine Drives Using General Purpose Programs

G.A. Capolino, Inst. Mediterraneen de Techn., France

262

 

 

The Modern Space Phasor Theory: Its Precise and Coherent Formulation as Well as Its Advantages for Transient Analysis and

L. Serrano, Univ. Politecnica de Valencia, Spain

277

 

Session 4A: ELECTRICAL MACHINE CONTROL

 

 

Thursday, May 28

 

 

10:45- 12:30

 

 

Chair: Prof.Dr. E. Tacer

 

 

A GTO-Chopper Regenerative Drive for D.C. Traction

J. Richardson, J.A. Cook, Brunel University, UK

294

 

Full-State Digital Control of DC-DC Regulators with Multi-Rate Sampling

D. Garabandic, A. Jelic, University of Novi Sad, Yugoslavia

300

 

Tracking Control of AC Drives Using Sliding Surfaces

L. Sztylinski, Technical Univ. of Wroclaw, Poland

304

 

A Simple Algorithm for Predictive Control of a Servo System

O. Kaynak, Bosphorus University, Turkey, M.H. Rashid, Purdue University, USA

310

 

Computer-Aided Selection of Optimal Drives for Motion Control Applications

R.E. Colyer, RMCS (Cranfield), UK, A.M. Trzynadlowski,

University of Nevada,

USA

315

 

A New Braking Algorithm for Brushless Direct Current Machines to

Reduce Thermal Problems

S. Hosagasi, A. Orhan, E. Akin, Firat University, Turkey

321

 

A Digital Power Transducer

C.P. Lewis, T.G. Hesketh, C. Roebuck Coventry Polytechnic, UK

325

 

Session 4B: INDUCTION MOTORS: VARIOUS PROBLEMS

 

 

Thursday, May 28

 

 

10:45 - 12:30

 

 

Chair: Prof.Dr. L. Serrano-Iribarnegaray

 

 

Some Effects due to Rotor Eccentricity in Induction Motor

K. Weinreb, Univ. of Mining and Metall., P. Drozdowski, T.J. Sobczyk, Cracow Univ. of Technology, Poland

329

 

A Comparison Between Induction and Permanent Magnet D.C. Brushless Tubular Machines

R. Akmese, J.F. Eastham, University of Bath, UK

335

 

A Microcomputer Based Semi-Automated Synthetic Loading Heat Run Test System for Three-Phase Induction Motors

I.A. Mohammed, S.A. Hussain, University of Baghdad, Iraq

340

 

Performance of a Model Linear Induction Motor with Double Sided Steel Secondary

H. Kurum, M. Cebeci, Firat University, A.S. Akpinar, Karadeniz Technical University, Turkey

348

 

 

Modeling of a Three Phase Induction Generator Connected to Electric Power System

J. Faiz, K. B. Abbasi, A. R. Milani, University of Tabriz, Iran

353

 

Computer-Aided Teaching of Electric Machines Using "MATLAB"

M. Riaz, University of Minnesota, USA

360

 

Session 4C: PERMANENT MAGNET MOTORS

 

 

Thursday, May 28

 

 

10:45- 12:30

 

 

Chair: Prof.Dr. B.J. Chalmers

 

 

Adaptive Position Control of Permanent Magnet Synchronous Motors and Torque Ripple Suppression

O.S. Bogosyan, M. Gokasan, T. Kutman, Istanbul Technical University, Turkey

366

 

Numerical Calculation of Torques in the Electronically Operated Permanent Magnet Synchronous Motor with Quantities Obtained

L. Petkovska, M. Cundev, University of Skopje, Macedonia

372

 

 

Specific Characteristics of the Interior Type Permanent Magnet Synchronous Motors. Application to a Siemosyn IFU3134".

M.A.F. Ferro, M.P. Donsion, Universidad de Vigo, Spain

378

 

 

Effects'of Current and Airgap Flux Density Waveforms on the

Torque per Ampere of a Current-Fed PM Synchronous Motor

G. Onbilgin, A. Sezgin, Karadeniz Technical University, Turkey

383

 

 

Digital Simulation Study of Nd-Fe-B DC Motor's Dynamic Performance for Undersea Robot

C. Sun, Y. An, Y. Wu, Shenyang Polytechnic Univ., P.R. China

389

 

 

Micromotor for Cataract Surgery

S.J. Yang, V.M. Galloway, Heriot-Watt University, R.S. Bartholomew,

University of Edinburgh, UK

394

 

VOLUME II

 

 

PLENARY SESSION

 

 

Thursday, May 28

 

 

14:00 - 15:30

 

 

Chair: Prof.Dr. B.K. Bose

 

 

Saliency Effects in Permanent-Magnet Motor Drives

B.J. Chalmers, UMIST, UK

399

 

Brushless PM and SR Motors for Servo Drive Applications-Selection of Motor Type and New Designs

R.K. Apostolov, Inst. of Electrical Industry, Bulgaria

409

 

Permanent Magnets in Motors and Actuators

R. Hanitsch, Technische Univ. Berlin, Germany

415

 

Electromagnetic Field Problems in Small Electronic Controlled Motors

J. Turowski, K. Komeza, A. Pelikant, S. Wiak, Ins. of Elec. Mach. and

Trans., Poland, M. Rizzo, University of Palermo, A. Savini, University of

Pavia, Italy

430

 

Session 5A: INDUCTION MOTORS: DRIVE SIMULATION

 

 

Thursday, May 28

 

 

15:45- 17:30

 

 

Chair: Prof.Dr. A.G. Jack

 

 

Microprocessor Controlled CSI-Fed Induction Motor Drive with Field Oriented Control

K. Veszpremi, M. Hunyar, T. Molnar, Budapest Technical University, Hungary

438

 

 

Modeling and Implementing of a Microprocessor-Based Vector Controller for Induction Motor Drive Considering Optimal Flux

R. Yazici, A.S. Akpinar, I. Kaya, Karadeniz Technical University, Turkey

444

 

 

Direct Line-to-Line Voltage Control in Converter Supplied AC Drives

V.I. Oleschuk, Moldova Academy of Science, Moldova

450

 

Dynamic Characteristics of a Current Source Inverter-Induction Motor Drive System in the Mode of Switching from the Frequency

N.Y. Ovcharenko, P. G. Bilinkis, Moldova Academy of Sciences, Moldova

456

 

Session 5B: POWER ELECTRONICS: HARMONICS

 

 

Thursday, May 28

 

 

Chair: R.G.W. Zingel

 

 

15:45- 17:30

 

 

The Effects of "Polluted" Network on AC/DC Converter Characteristics V.A. Katic, University of Novi Sad, V.S. Vuckovic, University of Belgrade, Yugoslavia

462

 

Evaluation of EMI Problems in Power Electronic Circuits

F.S. Galbraith, C.L. Halsall, Paisley College, Scotland-UK

467

 

Harmonic Sum for Parallel-Connected AC/DC Converters

M. Cacciari, A. Cavallini, M. Loggini, R. Miglio, G.C. Montanari, University of Bologna, Italy

473

 

 

Digital Computer Studies of Non-Characteristic Harmonics of AC/DC Converters

G.B. Gharehpetian, S.H. Hosseinian, Amir-Kabir University, Iran

479

 

Measurement of Harmonic Distortion Caused by Electrical Machines and Their Control Devices

M.P. Donsion, M.A. Prieto Alonso, B. Novo Ramos, M.A. Fernandez

Ferro, Universidad de Vigo, Spain

483

 

The Analysis and Measurement of A.C. Harmonics of the Rectifiers of Light-Railway System in Istanbul

P.J. Brown, General Electric Company, USA, R.N. Tuncay, Istanbul Technical University, Turkey

489

 

Session 5C: SYNCHRONOUS MACHINES

 

 

Thursday, May 28

 

 

15:45 - 17:30

 

 

Chair: Prof.Dr. T. Kutman

 

 

On the Transient of a Round Rotor Synchronous Machine after a Symmetrical Three-Phase Short-Circuit

O. Bruno, G. Mariotti, University of Pisa, Italy

495

 

A General Approach to SLG Fault Analysis in Synchronous Generator Using Phase Coordinate Model

M. Abedi, A.M. Mousavi, Amir-Kabir University, Iran

498

 

The Transient Working Condition of the Synchronous Machine when Connecting the Field Winding

V. Maier, Politechnic Institute of Cluj, Romania

503

 

On the Three-Phase Salient Pole Synchronous Machine at Constant Active or Reactive Power

O. Bruno, G. Mariotti, University of Pisa, Italy

507

 

PLENARY SESSION

 

 

Friday, May 29

 

 

09:00- 10:30

 

 

Chair: Prof.Dr. B.J. Chalmers

 

 

Impact of Control Strategy on Component Ratings of Series Resonant DC Link Current Converter

G. Ledwich, M.T. Aydemir, E. Da Silva, T.A. Lipo, University of Wisconsin, USA

511

 

Synchronous Motor Design

M. Jufer, Ecole Poly. Feder. de Lausanne, Switzerland

517

 

Drive Technology Simplification

M. Ehsani, Texas A&M University, USA

524

 

Converters as Harmonic Sources

R.G.W. Zingel, AEG, Germany

542

 

Session 6A: SYNCHRONOUS MOTORS: DRIVES

 

 

Friday, May 29

 

 

10:45 - 12:30

 

 

Chair: Prof.Dr. N. Tuncay

 

 

Converter-Fed Synchronous Machine with Fully Digitalized Control System Using DSP

T. Molnar, K. Veszpremi, Technical Univ. of Budapest, Hungary

550

 

Excitation Controller Design of a Synchronous Generator Using Output Feedback

D. Papadopoulos, D.V. Bandekas, J.R. Smith, Democritus Univ. of

Thrace,

Greece

556

 

Variable Structure Control of Permanent Magnet Brushless and Synchronous Motors

E. Bilge, Free Univ. of Brussels, Belgium

562

 

A Fully Digital Controller for AC Motor Drives

C. Guarino Lo Bianco, C. Rossi, A. Tonielli, University of Bologna, Italy

568

 

Session 6B: SYNCHRONOUS MACHINES

 

 

10:45- 12:30

 

 

Chair: Prof.Dr. R. Hanitsch

 

 

Identification of the Parameters of a Synchronous Machine Fed by Converter

T. Molnar, I. Schmidt, Technical Univ. of Budapest, Hungary

574

 

General Expressions for Forces Acting in EDS-MAGLEV Systems

Driven by Linear Synchronous Motors

M. Andriollo, G. Martinelli, A. Morini, University of Padova, Italy

580

 

The Performance, with Constant Active or Reactive Power, of the Three-Phase Round Rotor Synchronous Machine

O. Bruno, G. Mariotti, University of Pisa, Italy

588

 

A State Space Model of a Synchronous Machine with Convertor

M.J. Hoeijmakers, Delft University of Technology, Netherlands

592

 

The Mathematical Model of the Synchronous Machine and the

Experimental Identification of Parameters

N. Galan, C. Ofrim, Polytechnic Inst. of Bucharest, Romania

598

 

Data Acquisition and Automated Measuring System, Application to Synchronous Machine Analysis

M.D. Bah, S. Traore, Interafrican Elec. Eng. College, Ivory Coast

603

 

Session 6C: MACHINE THEORY

 

 

Friday, May 29

 

 

10:45- 12:30

 

 

Chair: Dr. M. Ermis

 

 

Generalized Representative Magnitudes

N. Galan, S. Bucurenciu, G. Ciumbulea, Polytechnic Inst. of Bucharest, Romania

608

 

 

Comparison of Performances of Brushless Electronically Controlled Small DC Motors with Various Magnetic Circuits

M. Rizzo, University of Palermo, A. Savini, University of Pavia, Italy, J.

Turowski, Technical University of Lodz, Poland

614

 

Electrical Machines Computer Package BaSed on Generalized Theory of Electrical Machines

J. Faiz, M.A. Khodadadi, University of Tabriz, Iran

618

 

Session 7A: POWER ELECTRONICS: DEVICES

 

 

Friday, May 29

 

 

14:00- 15:30

 

 

Chair: Prof.Dr. M. Ehsani

 

 

Novel Simple Lossless Snubber Circuit for an IGBT-Inverter

M.A.E. Andersen, Technical Univ. of Denmark, Denmark

624

 

 

On the Optimal Design of the DC Side L-C Filter in Three-Phase Controlled Bridge

A. Ometto, N. Rotondale, Universita di L'Aquila, Italy

632

 

 

PWM and the Magnetization of the 12-pulse Self-Commutated Converter

A. Lasson, P. Lundberg, Chalmers Univ. of Technology, Sweden

638

 

 

Commutation Failure Analysis Of Choppers Used in Railway Traction

A. Brambilla, E. Dallago, Universita di Pavia, R. Romano, Ercole

Marelli Trazione, Italy

644

 

 

High Voltage Static Resonant Supplies. Utilization of the Transformer Parasitic Capacitances: Possibilities and Limits

B. Tala-Ighil, J.M. Nyobe-Yome, C. Glaize, P. Merle, Universite Montpellier II, France

649

 

 

Performance of GTO Chopper Fed DC Motors

A.A. El-Sattar, Ain Shams University, S. Wahsh, I. Edwar, Electronics

Research Institute, Egypt

655

 

 

Design of a 6.3 kV Thyristorized Switch for Direct On Starting of Induction Motors Under Minimized Transients

M. Rahman, TUBITAK, I. Cadirci, M. Ermis, E. Nalcaci, H.B. Ertan,

Middle East Technical Univ., Turkey

784

 

Session 7B: DESIGN

 

 

Friday, May 29

 

 

14:00- 15:30

 

 

Chair: Dr. R.E. Colyer

 

 

Computation of Skin Effect Factors in Cage Induction Motors

H. Oraee, A. Hashemi, Ministry of Heavy Industry, Iran

680

 

Salient Pole Asynchronous Micro-Motors with New Solution of Magnetic Core and Stator Winding

I.G. Zabora, V.A. Ignatov, Vzisi-Moskva, Russia, B. Weglinski, Technical Univ. of Wroclaw, Poland

666

 

 

Electromagnetic Acoustic Noise and Vibrations of Rotating Electrical Machines; the Problems, Causes and Reduction

S.P. Verma, A. Balan, University of Saskatchewan, Canada

671

 

The Modern Technology in Production of Insulated Magnetic Core Assemblies

L. Dlugiewicz, K. Poch, PSMEMM "MIKROMA", B. Weglinski, Technical

Univ. of Wroclaw, Poland

679

 

Session 7C: INDUCTION MOTORS: SIMULATION

 

 

Friday, May 29

 

 

14:00 - 15:30

 

 

Chair: Dr. M.Y. Uctug

 

 

Simulation of Three Phase Voltage Inverter with Optimal Pattern for Induction Motor Drive

M. Rostami, J. Nazarzadeh, M. Mahmoudi, Amirkabir University, Iran

683

 

Optimum PWM Pattern for Torque Distortion Minimization in the Induction Motors

J. Nazarzadeh, M. Rostami, K.Y. Nikravesh, Amirkabir University, Iran

688

 

Feeding Strategies for Two Windings Asynchronous Motors

C. Attaianese, G. Gentile, University of Naples, N. Rotondale, University of L'Aquila, M. Scarano, University of Naples, Italy

693

 

 

The Analysis of the Performances of the Asynchronous Machine Fed by a PWM Inverter

I. F. Soran, Polytechnic Ins. of Bucharest, Romania

698

 

A New Digital Simulation Technique for an Inverter-Fed Induction Machine

L. Tezduyar, Arcelik A.S., E. Tacer, Istanbul Technical University, Turkey

703

 

Session 8A: POWER ELECTRONICS: COMPONENTS

 

 

Friday, May 29

 

 

15:45 - 17:30

 

 

Chair: Prof.Dr. M.H. Rashid

 

 

New Technics in Induction Heating Towards More Power and

Frequency

S. El Baroudi, Institut de Genie Energetique, F. Bernot, ENIBe, A. Berthon, Institut de Genie Energetique, France

709

 

 

HOW to Model LDMOS Devices for High Voltage, Low Current Applications

M. Fracchia, P. Pozzobon, L. Puglisi, University of Genova, Italy

714

 

A Method of Unilateral Identification of Power Transistor Working Point

S. Kapka, Lublin Technical University, Poland

722

 

Automatic Testing of Power Thyristors Prior to High Voltage Energizing of Converter

A. Pawlaczyk, Instytut Elektrotechniki, Poland

728

 

Reverse Recovery Characteristics of High Power Diodes in GTO Circuits

P.T. Hoban, N.Y.A. Shammas, Staffordshire Polytechnic, UK

734

 

The Experimental Results of Reverse Recovery Effects in Power Fast Recovery Diodes Analyzed by Numerical Model

G. Vaher, M. Tarma, Tallinn Electrotechnical Inst., E. Velmre, A. Udal, Tallinn Technical University, Estonia

738

 

 

Analysis of a Three-Phase PWM AC Chopper for Variable-Voltage Control of Induction Motors

D. Casadei, G. Grandi, G. Serra, University of Bologna, Italy

744

 

Session 8B: DESIGN

 

 

Friday, May 29

 

 

15:45- 17:30

 

 

Chair: Dr. G. Onbilgin

 

 

Influence of Winding Location on the Design and Optimization of a Brushless Motor

A. Miraoui, D. Chamagne, J.M. Kauffmann, Institut de Genie Energetique, France

750

 

 

Design and Optimization of a Small Brushless DC Permanent Magnet Motor

A. Miraoui, Institut de Genie Energetique, France, L. De Fang, Academia Sinica, China, K. Li, S. Charbonnier, Institut de Genie Energetique, France

754

 

 

Optimization of the Asynchronous Motor Design

G. Cannistra, M. Sylos Labini, Polytechnic of Bari, Italy

758

 

Optimal Design of Induction Motors

O.W. Andersen, Norwegian Inst. of Technology, Norway

763

 

Superconducting Synchronous Motor

I. Muta, T. Hoshino, K. Hayashi, Saga University, Japan

769