基于PMSMDTC的单位功率因数控制方法的研究  

Research on Unity Power Factor Control Based on PMSM-DTC

作　　者：申斌[1] 张晓宇[1] SHEN Bin ZHANG Xiao-yu(North China Institute of Science and Technology, Yanjiao, 101601, China)

机构地区：[1]华北科技学院电子信息工程学院,北京东燕郊101601

出　　处：《华北科技学院学报》2017年第2期97-101,共5页Journal of North China Institute of Science and Technology

基　　金：国家自然科学基金(61304024);河北省科技计划项目(15272118);中央高校基本科研业务费资助项目(3142015143;3142016022)

摘　　要：针对内置式永磁同步电机(IPMSM,Interior Permanent Magnet Synchronous Motor),为充分利用逆变器的容量,提出了一种新型单位功率因数(cosφ=1)控制方法,无需进行复杂的坐标变换,实现起来更简单。在转子同步旋转坐标系下,对永磁同步电机的数学模型进行分析,推导得出单位功率因数控制的电磁转矩、定子电流以及电机转矩角的表达式,并详细阐明具体实现方法。同时采用SVPWM算法以减小转矩脉动,最后用MATLAB/Simulink软件搭建单位功率因数控制系统的仿真模型,仿真结果验证了该方法的有效性。Based on the interior permanent magnet synchronous motor, a new unity power control method is proposed in order to make full use of the inverter capacity, which is easier to implement without complex coor- dinate transformation. In the rotor coordinate system which rotates synchronously, the mathematical model of permanent magnet synchronous motor is analyzed. The electromagnetic torque, stator current and the torque angle of the unity power factor control are derived and realized. And the algorithm of SVPWM is used to re- duce the torque ripple. Finally, the simulation model of the unity power factor control is built in the Simulink of Matlab and the simulation results show the feasibility of the method.

关 键 词：永磁同步电机 直接转矩控制 单位功率因数 SVPWM 

分 类 号：TM351[电气工程—电机]