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                         International Conference on Electrical Machines  

                                                                                                  2-4 September 1998 

                                                                                                 ISTANBUL, TURKEY

Review of ICEM'98 by Prof. T. J. Hammons

TABLE OF CONTENTS

 

 

WEDNESDAY, SEPTEMBER 2, 1998

 
   

PLENARY SESSION

 
   

Wednesday, September 2   09:30 - 10:15

 

Chair: Prof. Dr. J. TEGOPOULOS

 
   

The Variable Speed Drives Market - Past, Present and a View on the Future

1

Dr. W. Drury, Control Techniques PLC, UK

 

SESSION PO1: POSTER SESSION

 
   

Wednesday, September 2   10:00 - 12:15

 
   

SYNCHRONOUS MACHINES

 
   

Analysis and Calculation on End Structure and Magnetic Field of Salient-Pole Rotor Electric Generator for Impulse Test

9

T. Min, F. Ziqing, China

 
   

Circulating Currents within Small Synchronous Generators

14

D.G. Dorrell, UK

 
   

High Speed Machines on Magnetic Bearings - Design Concepts and Power Limits

20

W.-R. Canders, Germany

 
   

The Saturation of Leakage Reactances in a Salient-Pole Synchronous Machine

26

S. Salvador, Portugal, L. Pierrat, France, J. Esteves, M.S. Garrido,                J. Santana, Portugal

 

Modal Analysis and Damping of Subsynchronous Oscillations

30

J.V. Milanovic, UK, M.C.A. Koh, Singapore

 
   

Variation in Damping and Frequency of Torsional Modes Caused by Uncertainty in Shaft Mechanical Parameters

36

J.V. Milanovic, UK, C.P.N. Fu, Australia

 
   

Analysis of Synchronous Machines Connected to Unbalanced Network

42

J. Tamura, M. Kubo, Y. Tomaki, T. Nagano, Japan

 
   

Saturation Effect on the Simulation of the Synchronous Machine-Power Electronic Converter Set

48

M.F. Benkhoris, S. Lasquellec, M. Feliachi, R. Le Doeuff, France

 
   

A Method of Searching for the Best Model of a Synchronous Machine, Allowing for Unequal Mutual Inductances

54

W. Jazdzynski, Poland

 
   

Effects of Generator Shaft Torsionals on Control of Large Units with Non-linear Valve Stroking Following Severe Supply System Disturbances

59

T.J. Hammons, UK

 
   

A Fuzzy Logic Controlled Static Phase Shifter for Bus Voltage Regulation of Interconnected Power Systems

66

Ý.H. Altaþ, Turkey

 
   

Effects of Synchronous Machine Circuit Parameters on Steady State Stability

72

N.C. Kar, J. Tamura, Japan

 
   

Improvements in Automatic Control of Synchronous Machine with Machine Commutated Current Inverter

78

A.N. Novakovsky, P.A. Tikotsky, Yu.D. Vinitski, A.M. Weinger, Russia

 
   

Salient Pole Synchronous Motor Excitation and Stability Control in Direct Torque Control Drives

83

O. Pyrhönen, J. Kaukonen, M. Niemela, J. Pyrhönen, J. Luukko, Finland

 

Voltage Source Converter-Fed Synchronous Motor Drive

89

I. Schmidt, K. Veszpremi, Hungary

 
   

Performance of Small and Medium Power Flux Barrier Rotor Reluctance Synchronous Machine Drives

95

 X.B. Bomela, S.K. Jackson, M.J. Kamper, South Africa

 

 

 

Forced Excitation of Pulse Generators with Sequential Switching of the Windings

100

A.V. Loos, G.A. Sipailov, A.I. Chuchalin, Russia

 
   

Straight Flow Microhydro Power Station and Its Experimental Investigation

103

J. Danilevich, Russia

 
   

The Gas Penetration into the Water Cooling Circuit of a Generator

106

Z. Jelinek, Czech Republic

 

SWITCHED RELUCTANCE MACHINES

 
   

Field Analysis and Dynamic Model of a Doubly-Salient Permanent-Magnet Motor

110

C. Martis, M.M. Radulescu, K. Biro, Romania

 
   

Reduction of Switched Reluctance Machine Vibrations. Control Actuation

114

M. Gabsi, F. Camus, B. Humeau, M. Besbes, France

 
   

Analysis and Control of a Reluctance Motor Having a Toroïdal Magnetic Circuit

119

J.-C. Vannier, P. Vidal, C. Poirson, France

 
   

A Fuzzy Tracking Current Controller for Torque Ripple Optimization of Switched Reluctance Motors

125

E. Bassily, M. Hallouda, Egypt

 

A Fuzzy Logic Approach to Current Control of Switched Reluctance Motors

131

H. Henao, G.A. Capolino, M. Poloujadoff, France

 
   

Sensorless SRM Drives Using ANN-Based Estimators

137

A. Bellini, G. Filippetti, F. Franceschini, C. Tassoni, Italy, P. Vas, UK

 
   

Sensorless 12/8 Switched Reluctance Drives for Low Power and Low Voltage Applications

143

P. Andrada, F. Castellana, E. Martinez, J.I. Perat, Spain

 

LOSSES

 
   

Losses in Non-Linear Moving Bodies

147

G. Preda, F.I. Hantila, M. Vasiliu, E. Demeter, Romania

 
   

Power Losses in Dynamo Sheet During Axial Magnetization with Flux Evoked by PWM Voltage Supply

153

K. Zakrzewski, Poland

 
   

Indirect Method of Measuring Additional Load Losses in Induction Motors

159

M.M. Kostic, Yugoslavia

 
   

Evaluation of the Iron-Loss in Highly Saturated Electrical Machines

165

B. Amin, France

 
   

Iron Loss in Vector Controlled Induction Machine

169

S. Moulahoum, O. Touhami, M. Benhaddadi, Algeria

 
   

Losses in PWM Converter-Fed Three Phase Induction Motors and Their Percentages

175

H. Röhrdanz, Germany

 
   

Loss Reduction in Synchronous Machines by Appropriate Feeding Patterns

181

H. May, W.-R. Canders, R. Palka, Germany

 
   

Magnetic and Thermal Analysis of a Wound-Field Cylindrical Rotor Synchronous Motor in Optimal Efficiency Operation

187

C. Mademlis, J. Xypteras, N. Margaris, Greece

 

SESSION IM1: INDUCTION MACHINES

 
   

Wednesday, September 2   10:45 - 12:15

 

Chair: Prof. Dr. B. J. Chalmers

 
   

High Harmonic Fundamental Current Modulation Caused by Zig-Zag Leakage Flux Pulsation

193

W. Deleroi, The Netherlands

 
   

Thermal Evaluation of New Housing of Electrical Machine

200

B. Hribernik, M. Trlep, A. Hamler, Slovenia, E.C. Protas, Austria,

 
   

Optimised Design of a Double Cage Induction Motor by Fuzzy Artificial Experience and Finite Element Analysis

203

N. Bianchi, S. Bolognani, M. Zigliotto, Italy

 
   

Estimation of Rotor Slot Harmonic Amplitudes and Frequencies in the Line Current of Induction Motors

209

H. Güldemir, K.J. Bradley, UK

 
   

Simulation Study of a Double Three Phase Electric Machine

215

Z. Chen, A.C. Williamson, UK

 
   

A Dynamic Performance Booster for Current Regulated Induction Machines at High Speed Utilizing Trapped Rotor Flux

221

R.S. Wieser, Austria

 

SESSION TS: TESTING

 
   

Wednesday, September 2   10:45 - 12:15

 

Chair: Prof. Dr. A. Krawczyk

 
   

Testing of Inverter Fed Electrical Machines: Instrumentation and Procedure Problems

227

A. Boglietti, M. Pastorelli, A. Carullo, M. Parvis, Italy

 
   

Some New Aspects of the Digital Two-Speed Method for Assessing Transient Torques of AC Motors and Choice of an Optimal Algorithm for Filtering the Measured Data

233

R. Radosavljevic, D. Kalic, Z. Lazarevic, Z. Radakovic, Yugoslavia

 
   

Ratings and Parameters of Induction Motor Equivalent Schemes

239

N. Galan, G. Ciumbulea, S. Deleanu, Romania

 
   

Numerical and Experimental Determination of an Induction Machine Parameters Depending on the Magnetising Current

243

G. Garcia Soto, A. Yahiaoui, E. Mendes, F. Bouillault, France

 
   

Thermal Testing for Inverter-Fed Induction Machines Using Mixed Frequency Method

248

L. Tutelea, I. Boldea, Romania, E. Ritchie, P. Sandholdt, F. Blaabjerg,  Denmark

 
   

Standstill Frequency Response Testing and Simulation of Large Hydrogenerators at the Macagua II Project

254

S. Salon, USA, C.J. Azuaje, Venezuela

 

SESSION AC: ACTUATORS

 
   

Wednesday, September 2   10:45 - 12:15

 

Chair: Prof. Dr. J. L. Kirtley Jr.

 
   

A DSP Controlled Single Phase Linear Actuator for Positioning Application

260

Z.W. Shi, C.B. Rajanathan, A.T. Sapeluk, UK

 
   

Propulsion-and-Levitation Dynamics in a Land Travelling Marine-Express Model Train ME03 with Three Unbalanced-Mass Vehicles

264

K. Yoshida, H. Takami, D. Nakata, Japan

 
   

Study on Electromagnetic Damper Systems for the Superconducting Maglev Vehicle

270

H. Ohsaki, N. Tanahashi, N. Imai, E. Masada, Japan

 
   

Multi-Airgap Permanent Magnet Linear Actuator

276

L. Prevond, A. Ben Ahmed, J. Lucidarme, A. Lesobre, France

 
   

A Novel Planar Actuator

282

A.A. Suzim, A.F. Flores Filho, M.A. da Silveria, Brazil

 

SESSION IM2: INDUCTION MACHINES

 
   

Wednesday, September 2   13:45 - 15:15

 

Chair: Prof. Dr. G.-A. Capolino

 
   

Analysis of Electromagnetic Field in a Disk Induction Motor with Double-Sided Stator and Twin Rotors Using a 3-D Reluctance Network Method

286

K. Ciosk, E. Gierczak, E. Mendrela, Poland

 
   

Induction Motor Design Optimization

290

U. Sinha, J.L. Kirtley Jr., USA

 
   

Choosing the Main Dimensions of a Medium Speed (<30000 rpm) Solid-Rotor Induction Motor

296

J. Huppunen, J. Pyrhönen, Finland

 
   

Design of Energy Efficient Induction Motors Rotor End Using FEM

302

J. Haataja, J. Pyrhönen, Finland

 
   

Comparison of Induction Machine Park's Models Using Parameters Issue from FEM and from Experimental Tests

308

S. Brule, A. Tounzi, F. Piriou, France

 
   

Torque-Speed Characteristic of Elevator Deep Rotor Bar and Double Stator Winding Asynchronous Machines. Modelling and Measurement

314

J. Martinez-Roman, L. Serrano-Iribarnegaray, Spain

 

SESSION PM1: PERMANENT MAGNET MACHINES

 
   

Wednesday, September 2   13:45 - 15:15

 

Chair: Prof. Dr. M. A. Rahman

 
   

Validation of Procedure for Prediction of Field-Weakening Performance of Brushless Synchronous Machines

320

B.J. Chalmers, R. Akmeþe, L. Musaba, UK

 

 

 

The Performance of Brushless DC Motor with one Air-Gap Winding and Special Form of PM-Rotor

324

A.K. Daud, Palestine

 
   

Computation of Optimal Current Waveshape to Minimize Torque Ripple

329

S. Salon, T. Pham, USA, P. Lombard, France

 
   

Examinations of Torque Interruptions and Circulating Currents in PM Synchronous Motors with Switched Stator Windings

334

E. Nipp, Sweden

 
   

Claw Pole Geometries for High Performance Transverse Flux Machines

340

C.P. Maddison, B.C. Mecrow, A.G. Jack, UK

 
   

Permanent Magnet Machines with Soft Magnetic Composite Stators

346

B.C. Mecrow, A.G. Jack, S.A. Evans, UK

 
   

Comparison of Two Methods to Determine the d/q-axis Lumped Parameters of Permanent Magnet Machines with respect to Numerical Optimisation

352

U. Pahner, S. Van Haute, R. Belmans, K. Hameyer, Belgium

 

SESSION MI: MISCELLANEOUS TOPICS

 
   

Wednesday, September 2   13:45 - 15:15

 

Chair: Prof. Dr. S. P. Verma

 
   

International Standardization of Insulating Materials and Insulation Systems for Rotating Machines

358

H. Teichmann, Switzerland

 
   

Magnetic Shielding Effects Using Plural Bulk of High-Tc YBCO Superconductor

363

M. Gyoda, S. Torii, D. Ebihara, Japan

 
   

Modelling of an Electrically Actuated Vibratory System

369

D.J. Musgrave, D.A. Stone, C.M. Bingham, D. Howe, UK

 
   

Trial Manufacture and Fundamental Characteristics of a Model for Superconducting Rotary Transformer

375

Y. Hirane, S. Ohashi, S. Yokote, Japan

 
   

Distributed Variable Reluctance Sensors

381

A.M. Pawlak, USA

 
   

Single Phase Drive of Ultrasonic Motor for Reciprocating Motion

385

Y. Yamamoto, M. Nirei, Y. Kikuchi, I. Onozawa, Japan

 
   

A Comparison Between a Classical and an Optimised Variable Structure Control of a Shunt Active Filter

391

K. Sahnouni, O. Lapierre, A. Berthon, J.M. Kaufmann, France

 

SESSION PO2: POSTER SESSION

 
   

Wednesday, September 2   15:15 - 17:30

 
   

Diagnostics

 
   

Shaft Voltage Analysis: A New Generator Diagnostic Tool

396

M.J.E. Torlay, C. Corenwinder, J. Herigault, A. Audoli, A. Foggia, France

 
   

Increasing Bearing Elasticity and Damping Reduces the Rejection Rate of Electrical Motors on the Production Line

402

C. Öztürk, A. Bahadýr, Turkey, M.J. Brennan, UK

 
   

Recognition of Rotor Eccentricity of Induction Motors Based on the Fourier Spectra of Phase Currents

408

T.J. Sobczyk, K. Weinreb, A. Izworski,  Poland

 
   

Unbalanced Induction Machine Simulation Dedicated to Condition Monitoring

414

E. Schaeffer, E. Lecarpentier, M.E. Zaim, France

 
   

Experimental Application of Axial Leakage Flux to the Detection of Rotor Asymmetries, Mechanical Anomalies and Interturn Shortcircuits in Working Induction Motors

420

M.F. Cabanas, M.G. Melero, G.A. Orcajo, F. Rodriguez Faya,                     J. Solares Sariego, Spain

 
   

A System for Global Protection Control and Diagnosis of Industrial Plants Including Electric Motors and Drives

426

G.A. Orcajo, M.G. Melero, M.F. Cabanas, J.M. Alvarez, L.A.R. Villalba, Spain

   

High Sensitive Rotor Cage Monitoring During Dynamic Load Operation the Vienna Monitoring Method

432

R.S. Wieser, C. Kral, F. Pirker, M. Schagginger,  Austria

 
   

Useful Life of H.V. Induction Motors in Thermal Plants

438

C. Izquierdo, M. Burgos, M. Casal, P. Cruz, Spain

 

Modeling of the Three Phase Asynchronous Motor. Application to Magnetic Faults Diagnostic.

443

A. Ah-Jaco, A. Makki, H. Yahoui, G. Grellet, France

 
   

Current Pattern Analysis to Detect Induction Machine Non Rotational Anomalies

448

F.Filipetti, G. Franceschini, G. Gentile, S. Meo, A. Ometto, N. Rotondale, C Tassoni,  Italy

 
   

Modelling of Induction Motor Rotor Faults with Finite Element Method

454

R. Fiser, D. Makuc, Slovenia

 
   

The Fault Detection of Asynchronous Motors Using Artificial Neural Network (ANN)

460

A. Onduk, C. Öz, Y. Uyaroðlu,  N. Yumuþak,  Turkey

 
   

Detection of Turn to Turn Short-Circuits in the Field Winding of Turbogenerators by the Measurement of the Air-Gap Flux Density

465

O. Drubel, M. Rist, K. Sedlazeck, Germany

 
   

Recent Developments in On-Line Motor Diagnostics

471

G.B. Kliman, W.J. Premerlani, B. Yazýcý, R.A. Koegl, USA

 

Noise and Vibration

 
   

A Digital Current Control Reducing Common Mode Emissions

476

M. Cacciato, A. Consoli, G. Scarcella, A. Testa, Italy

 
   

A Simple Solution on the Acoustic Noise Problems with the Frequency Spectrum Analyzing Method

482

O. Gergöz, O. Beydað, Turkey

 
   

A Contribution to the Study of Induction Machine Stator Resonance Frequencies

485

C. Couturier, B. Cassoret, France, P. Witczak, Poland, J.F. Brudny, France

 

Considerations for the Reduction of Vibrations and Noise in the Design of Induction Motors for Variable Frequency Operation

490

A. Balan, S.P. Verma, Canada

 
   

Electromechanical Analysis of Vibrations and Noise of Squirrel-Cage Induction Motors

496

L. Vandevelde, J.J.C. Gyselinck, J.A.A. Melkebeek, Belgium

 
   

Static Eccentricity as a Cause for Audible Noise of Induction Motors

502

K. Delaere, K. Hameyer, R. Belmans, Belgium

 
   

Air Gap and Vibration Monitoring of Synchronous Machines

507

G. Biechl, T. Oettli, K. Reichert, M.W. Marke, Switzerland

 

Transformers

 
   

Modal Oscillations of the Transformer Disk Coils

513

A. Moraru, F. Anghel, A. Marinescu, Romania

 
   

Monitoring of Two HV/MV Transformers and Extensive Tests on Two Distribution Transformers for the Determination of Their Overload Capability

516

A.N. Kartas, D.K. Tsanakas, Greece

 
   

Modelling and Simulation of a Welding Transformer for Parameters Evaluation

524

S.S. Cundeva, L.B. Petkovska, M.D. Cundev, Macedonia

 
   

Quasi-3D Method to Compute Magnetic Field and Losses in Anisotropic 3-phase Converter Transformer During Faults

529

E. Napieralska, France, R. Grzybowski, Poland

 
   

Design Issues of Integrated Transformers for Resistance Welding Robot Guns

535

S.Y. Guenov, G.N. Nachev, S.N. Guenov, Bulgaria

 

Artificial Intelligence Approaches to Distribution Transformer Core Quality Improvement

541

P.S. Georgilakis, N.D. Hatziargyriou, A.T. Souflaris, Greece

 
   

Very Fast Transient Overvoltages due to Discontinuity of Transformer Windings

547

G.B. Gharehpetian, H. Mohseni, Iran, K. Möller, Germany

 
   

Prediction of Po, Pk and Uk by Using Artificial Neural Network in the Manufacturing of Cast Resin Transformers

552

F. Temurtaþ, N. Yumuþak, O. Çerezci, Turkey

 
   

Interconnected Star Neutral Grounding Transformer with Mainly Ohmic Resistance

556

K. Lenasi, M. Berlec, Slovenia

 
   

Thermal Performance of a Current Transformer Using the Finite Element Approach

561

J.A. Dias Pinto, A.P. Coimbra, P.G. Pereirinha, C.F. Lemos Antunes, Portugal

   

The Accuracy of Transformer Thermal Time Constant and Final Temperature Rise Determination

565

M.J. Resende, Portugal, L. Pierrat, France, J. Santana, Portugal

 
   

Measurement and Computation of Mechanical Stress in the Windings of Power Transformer

571

D. Hristovski, K. Najdenkoski, Macedonia

 
   

Design and Test of 500 J Superconducting Pulsed Power Transformer

575

E. Floch, Y. Laumond, A. Lacaze, J.M. Kauffmann, P. Hiebel, France