[关键词]
[摘要]
开绕组直线游标永磁（LVPM）电机具有直流电压利用率高和推力密度大等优点，并且其建设和维护成本低，适用于城市轨道交通的建设。但采用传统直接推力控制时，电机的推力和磁链脉动大，功率单元开关频率不稳定。针对以上问题，分析了LVPM电机的数学模型，研究了基于空间矢量脉宽调制（SVPWM）的直接推力控制策略，提出了一种目标矢量解耦控制策略，并搭建仿真平台。仿真的结果验证了所提出方法的正确性。
[Key word]
[Abstract]
Open winding linear vernier permanent magnet (LVPM) motor has the advantages of high DC voltage utilization, high thrust density and low cost of construction and maintenance. It is very suitable for the construction of urban rail transit. However, when the traditional direct thrust control is adopted, the thrust and flux ripples of the motor are large, and the switching frequency of the power unit is unstable. Aiming at the above problems, the mathematical model of LVPM motor is analyzed, the direct thrust control strategy based on space vector pulse width modulation (SVPWM) is studied, and a target vector decoupling control strategy is proposed. The simulation results verify the correctness of the proposed method.
[中图分类号]
[基金项目]
江苏省自然科学基金项目（BK20191225）；镇江市工业控制网络重点实验室项目（GX2017005）；镇江市高等专科学校2019年青年专项课题项目（GZQNZX2019020）;镇江市第五期“169工程”科研项目
