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Civil-Comp Proceedings
ISSN 1759-3433
CCP: 104
Edited by: J. Pombo
Paper 12

Adhesion Control for a High Speed Train with Multiple Induction Motors Fed by a Single Inverter

S. Wang1, X. Tu1, Z.P. Yang1, F. Lin1 and Y. Xu2

1School of Electrical Engineering, Beijing Jiaotong University, China
2National Engineering Laboratory of System Integration for High-speed Train, China South Locomotive and Rolling Stock Corporation Ltd., Qingdao, China

Full Bibliographic Reference for this paper
S. Wang, X. Tu, Z.P. Yang, F. Lin, Y. Xu, "Adhesion Control for a High Speed Train with Multiple Induction Motors Fed by a Single Inverter", in J. Pombo, (Editor), "Proceedings of the Second International Conference on Railway Technology: Research, Development and Maintenance", Civil-Comp Press, Stirlingshire, UK, Paper 12, 2014. doi:10.4203/ccp.104.12
Keywords: multiple induction motors, single inverter, weighted vector control, slip/skid, fuzzy adhesion control, HIL simulation.

To improve the control performance of parallel connected induction motors fed by a single inverter in high speed train under different wheels radius and various adhesion, a novel control strategy based on the weighted vector control is proposed. In this paper, a weighted flux linkage vector model of dual induction motors is developed, and then the control expressions of weighted rotor flux linkage and summation torque are derived. And then a adhesion control method combined optimum adhesion control and weighted vector control is proposed. The weighted value of vector control is distributed automatically according to the wheels radius and adhesion condition of each motor. The simulation results prove that the proposed method can decrease the torque difference of each motor caused by different wheels radius and increase the summation torque under the slip/skid situation.

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