Weighted torque current control for high speed train with dual induction motors fed by a single inverter

Lei Guo, Zhongping Yang, F. Lin, Xi Tu
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引用次数: 9

Abstract

In this paper, the circuit model of the parallel connected induction motors driven by single inverter is established. According to the circuit model, the problem of unbalanced electromagnetic torque caused by the wheel diameter difference of the parallel connected motors is analyzed. The weighted vector equation of the parallel connected motors is established. To improve the control performance with unbalanced torque, the paper proposes a new torque control strategy based on weighted torque current for high speed train parallel connected induction motors. At the same time, the simulation model of the traction system of the China Railways High-speed train (CRH2A) is established. The simulation and experiment prove the feasibility and correctness of the control strategy.
单逆变器双感应电机高速列车的加权转矩电流控制
本文建立了单逆变器驱动并联异步电动机的电路模型。根据该电路模型,分析了并联电机轮径差引起的电磁转矩不平衡问题。建立了并联电机的加权矢量方程。为了改善转矩不平衡时的控制性能,提出了一种基于加权转矩电流的高速列车并联异步电动机转矩控制策略。同时,建立了中铁高速列车(CRH2A)牵引系统仿真模型。仿真和实验验证了该控制策略的可行性和正确性。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
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