开绕组永磁同步电机最小铜耗控制策略研究  

Research on Minimum Copper Loss Control Strategy for Open Winding Permanent Magnet Synchronous Motor

作　　者：周旋 汪小娜[1] 沈昊旻 ZHOU Xuan;WANG Xiaona;SHEN Haomin(School of Electrical Engineering,Naval University of Engineering,Wuhan 430033,China)

机构地区：[1]海军工程大学,武汉430033

出　　处：《微电机》2024年第3期59-64,共6页Micromotors

摘　　要：开绕组永磁同步电机由两组逆变器驱动,具有大功率、大扭矩的特点,应用于电动汽车。由于能耗对电动汽车极其重要,因此对降低开绕组永磁同步电机铜耗进行了研究,提出基于该系统的变解耦角度调制策略。该策略以两组逆变器输出电压矢量之间的夹角(解耦角)为控制变量,利用树种优化算法根据电机不同负载状态选择最佳解耦角,以减少开绕组永磁同步电机铜耗。通过仿真验证,在轻载工况下,可减少25%的铜耗,证明了该策略的优越性,为控制电动汽车运行损耗提供了理论支撑。The open winding permanent magnet synchronous motor is driven by two sets of inverters and has the characteristics of high power and torque,which is applied to electric vehicles.Due to the extremely important energy consumption for electric vehicles,research has been conducted on reducing the copper consumption of open-winding permanent magnet synchronous motors,and a changeable decoupling angle modulation strategy based on this system has been proposed.It took the angle(decoupling angle)between the output voltage vectors of two sets of inverters as the control variable,and used tree-seed optimization algorithm to select the optimal decoupling angle based on different load states of the motor,so as to reduce the copper loss of the open winding permanent magnet synchronous motor.Through simulation verification,under light load conditions,the copper consumption can be reduced by 25%,proving the superiority of this strategy and providing theoretical support for controlling the operating losses of electric vehicles.

关 键 词：开绕组永磁同步电机 解耦角 树种优化算法 铜耗 

分 类 号：TM351[电气工程—电机] TM341[自动化与计算机技术—检测技术与自动化装置] TP273[自动化与计算机技术—控制科学与工程]