Proceedings of ICEMS2008 The 11th International Conference on Electrical Machines and Systems October 17-20, 2008 Wuhan, China Sponsored by China Electrotechnical Society National Natural Science Foundation of China Co-Sponsored by The Korean Institute of Electrical Engineers The Institute of Electrical Engineers of Japan Technical Co-Sponsored by IEEE Industry Application Society IEEE Industrial Electronics Society The Institution of Engineering and Technology Organized by Huazhong University of Science and Technology Published by World Publishing Corporation ISBN: 978-1-4244-3946-1 IEEE Catalog Number: CFP08801-PRT TABLE OF CONTENTS Multiphase Machine Theory and Its Applications ...........................................................................................1 J. Huang, M. Kang, J. Q. Yang, H. B. Jiang, D. Liu Estimation of Parameters for Induction Motor’s Analytical Model by Direct Search .................................8 M. R. Rao A Speed Sensorless Vector Control System of Induction Motors Using Current Observer and Taking into Account Iron Loss .................................................................................................................11 S. Chen, M. Tsuji, F. Xu, L. Wang Transient DC Side Short Circuit Currents of 12-phase Generator-Rectifier System.................................16 M. Fang, L. Fu, Z. Ye Synchronous Generator Model Identification Using Half-Complex Wavelet Nonlinear ARX Network ....................................................................................................................................................20 X. Wu, Y. Fan Analysis of Rotor Equivalent Parameters of Solid-Rotor Synchronous Motors .........................................26 C. Liang, W. Shamming Investigation for the Flashover Phenomenon in DC Machines.....................................................................30 Y. Nakanishi, K. Sugimoto, N. Morita Flashover and Transformer Voltage ...............................................................................................................36 K. Sugimoto, Y. Nakanishi, N. Morita Basic Studies For Accurate Commutation Analysis Which Enables Commutation Spark Energy Estimation.............................................................................................................................................42 Q. Zhang, T. Ueno, N. Morita Passivity-Based Control of Induction Motor Based on Euler-Lagrange (EL) Model with Flexible Damping ..............................................................................................................................................48 Z. Xu, J. Wang, P. Wang Load Characteristics of Induction Motor Made of Soft Magnetic Composite (SMC) ................................53 T. Fukuda, M. Morimoto Experimental Transient Characteristics of a Three-Phase Squirrel-Cage Induction Motor Under Unbalanced Voltage Condition ............................................................................................................57 I. Hirotsuka, K. Tsuboi, F. Ueda Optimal Design of Rotor Slot of Three Phase Induction Motor with Die-Cast Copper Rotor Cage....................................................................................................................................................................61 K. J. Park, K. Kim, S. H. Lee, D. H. Koo, K. C. Ko, J. Lee Experimental Study of Radial Distributions of Electromagnetic Vibration and Noise in Three-Phase Squirrel-Cage Induction Motor at No-load ..............................................................................64 I. Hirotsuka, Y. Niwa, K. Tsuboi, M. Kawakami A Dynamic Decoupling Method for Speed-Sensorless Vector Control of Induction Motor.......................69 Z. Zhang, Q. Ge Practical Speed Estimation Method for Induction Motor Vector Control System using Digital Signal Processor(DSP)..........................................................................................................................74 Z. Jian, W. X. Hui, H. Yang Rotor Resistance and Inductance Calculation of Single-Phase Induction Motors with Skin Effect Consideration .........................................................................................................................................79 D. Shan, X. Wu A Novel V/F Control System Based on Stator Voltage Oriented Method....................................................83 R. Yang, W. Chen, Y. Yu, D. Xu Stability Improvement of V/F Controlled Induction Motor Driver Systems Based on Reactive Current Compensation......................................................................................................................88 R. Yang, W. Chen, Y. Yu, D. Xu Research on Voltage-Reduce Energy Saving Strategy for Three-Phase Induction Motor.........................91 J. Du, T. Du A Modified Voltage Model Flux Estimation of Induction Motors................................................................94 K. Zhao, F. Lin, X. You Time-Stepping Finite Element Analysis of Wye and Delta Connection Influence on Induction Motor Copper Losses under Over-Voltage Condition .................................................................98 H. Zhao, X. Liu, Y. Luo, J. Hu Single-Phase Self-regulated Self-Excited Induction Generator with Series Capacitance.........................102 Y. P. Sun Determination of the High Frequency Inductance Profile of Surface Mounted Permanent Magnet Synchronous Motors .........................................................................................................................105 K. Lu, M. Vetuschi, P. O. Rasmussen, E. Ritchie A Novel Direct Torque Control for Permanent Magnet Synchronous Motor Drive.................................110 J. Wang, H. Wang, T. Lu, D. Teng Simulation of Three-Phase Short-Circuit at the Terminals of Synchronous Machine .............................115 X. Liu, D. Liu, Y. Huang Analysis of The No-Load Harmonic Electromagnetic Field of Synchronous Generator Using Tooth Flux Method...............................................................................................................................118 X. Yonghong, H. Shaogang, G. Aigang, J. Rengmou, Z. Ping Design of PID Excitation Controllers for Synchronous Generators Based on Fuzzy RBF Neural Network ...............................................................................................................................................122 R. Gong, Y. Huang, H. Wei, X. Meng, L. Xie Design and Simulation of a Traction Motor for Variable Speed Drive......................................................128 H. Liu, Y. Zhang, W. Kang, Z. Xia Simulation for Researching Stator Insulation Structure of 135MW Evaporative Cooling Turbo-Generator By Marinating...................................................................................................................132 L. R. J. Zhi-jian, L. Ying-zi The Design of an Electrical Fault-Waveform Regenerator .........................................................................136 X. Sun, D. Liu, H. Long, L. Yun Applied Engineering Design of Three Gorges’ 840MVA Hydro-Generator with Close Loop Self Circulating Evaporative Cooling System...............................................................................................142 J. Yuan, G. Gu, L. Ruan, X. Tian, L. Duo, T. Zhang Research of Power System Stabilizer Based on Prony On-line Identification and Neural Network Control..............................................................................................................................................146 Z. Qiaoe, S. Xiaolin, Z. Shuangxi Coupling and Decoupling Network for Surge Immunity Test on Power Lines .........................................151 M. Zhou, J. Wang, Y. Liu, F. Liu Experimental Study on Magnetizing and Loss Characteristics of Electrical Strip for Different Frequencies......................................................................................................................................156 Y. Xu, F. Wang A Rapid Method for Load Testing and Efficiency Measurement of Three-Phase Induction Motors ..............................................................................................................................................................160 C. Grantham, D. J. McKinnon Development of Exposed Environment of Overhead Transmission Lines on Mice ..................................166 D. Geng, G. Xu, H. Yu, C. Li, Q. Yang, W. Yan Optimization Design of Linear Halbach Array ............................................................................................170 J. Wang, C. Li, Y. Li, L. Yan Cylindrical Linear Halbach Arrays for Permanent Magnet Tubular Linear Machines..........................175 L. Zhao, Y. Peng, C. Sha, R. Li, Y. Xu Design of Three-Stage Screw-Type Labyrinth Seal Using on Main Drainage Motor in Mine and Research of Its Experiment.....................................................................................................................179 C. Du, G. Meng Design of Cooperative Manufacturing System Based on Multi-Agent.......................................................183 L. Xue On Study of Visualization in Electrical Machinery CAD ............................................................................186 Y. Boa, X. Xu Cyclic Shift Genetic Algorithm Applied to Design Optimization of Electromagnetic Devices.................189 C. Tanggong, W. Youhua, L. Zibin, S. Qunfang, Z. Zhizhong Shield-shape Design for Vacuum Circuit Breakers......................................................................................193