基于转矩补偿的动车永磁电机电磁优化设计  

Electromagnetic optimization design of permanent magnet motor for high-speed train based on torque compensation

作　　者：姜琛 薛秀慧 张磊 Jiang Chen;Xue Xiuhui;Zhang Lei(CRRC Yongji Electric Co.,Ltd.,Shanxi Yongji,044502,China)

机构地区：[1]中车永济电机有限公司,山西永济044502

出　　处：《机械设计与制造工程》2022年第4期74-78,共5页Machine Design and Manufacturing Engineering

基　　金：山西省科技重大专项资助(20181102007)。

摘　　要：为改善转矩扰动对动车永磁电机的影响,提出基于转矩补偿的动车永磁电机电磁优化方法。依据动车永磁电机结构,构建基于三相静止坐标系下的复合结构电机状态方程,分析动车永磁电机电磁转矩特性。通过转矩补偿结合永磁电机电磁增益PI控制策略,控制永磁电机速度,采用基于卡尔曼滤波器的转矩观测器与卡尔曼滤波算法,实现转矩的观测与补偿,结合PI变增益策略与转矩补偿共同实现对动车永磁电机电磁优化。仿真验证结果表明:优化后转矩增加或减少不会使电机转速产生大幅度变化,电机转速能够保持稳定;优化后转矩波动幅度较优化前有所降低。In order to improve the influence of torque disturbance on motor car permanent magnet motor,an electromagnetic optimization method of motor car permanent magnet motor based on torque compensation is proposed.According to the structure of motor car permanent magnet motor,the state equation of composite structure motor based on three-phase static coordinate system is constructed,and the electromagnetic torque characteristics of motor car permanent magnet motor are analyzed.The speed of permanent magnet motor is controlled by torque compensation combined with permanent magnet motor electromagnetic gain PI control strategy.The torque observer and Kalman filter algorithm based on Kalman filter are used to realize torque observation and compensation.The electromagnetic optimization of motor car permanent magnet motor is realized by combining PI variable gain strategy and torque compensation.The experimental results show that the increase or decrease of torque after optimization will not cause a significant change in speed,and the motor speed can maintain stable operation;The torque fluctuation amplitude after optimization is lower than that before optimization.

关 键 词：转矩补偿 动车永磁电机 电磁优化 卡尔曼滤波算法 PI变增益 转矩扰动 

分 类 号：TM359.9[电气工程—电机]