一种城轨用永磁辅助同步磁阻电机控制策略研究

Research on Control Strategy of a Permanent Magnet Assisted Synchronous Reluctance Motor for Urban Rail Transit

永磁辅助同步磁阻电机是近年来世界各国顶尖新能源企业的研究方向,其在轨道交通领域有广阔的应用前景;分析了永磁辅助同步磁阻电机的数学模型与工作点,结合城轨电传动系统运行的特点,对适用城轨领域的永磁辅助同步磁阻电机提出了一种控制策略及实现方法,主要包括MTPA控制策略,多模式调制策略,最后在180 kW城轨永磁辅助同步磁阻电传动实验平台验证了所提出控制策略的可行性。

Permanent magnet assisted synchronous reluctance motor(PMaSynRM)is the research direction of the world's top new energy enterprises in recent years.It has a broad application prospect in the field of rail transit.The mathematical model and working point of the PMaSynRM were analyzed.Based on the characteristics of urban rail electric drive system,a control strategy and implementation method of PMaSynRM for urban rail field were proposed,including maximum torque per ampere(MTPA)control strategy and multi-mode modulation strategy.Finally,the feasibility of the control strategy was verified on the 180 kW urban rail permanent magnet assisted synchronous reluctance drive experimental platform.