摘要
针对永磁同步电动机直接转矩控制系统如何实现id=0,单位功率因数和最大转矩/电流三种控制策略的问题,通过分析dq轴给定电流,探讨研究了对应控制策略下的直接转矩控制系统给定磁链计算方法,通过改变给定磁链实现三种控制策略。利用MATLAB搭建了不同控制策略下的直接转矩控制和矢量控制系统仿真模型,仿真结果表明,直接转矩控制系统能够实现矢量控制的三种控制策略,验证了三种控制策略下直接转矩控制系统给定磁链计算方法的正确性。
In direct torque control (DTC) system of permanent magnet synchronous motor (PMSM), to realize thecontrol strategies of id =0, cos φ=1 and max(Te / is) was an important issue. After analyzing the given currents of dq-axisunder different control strategies, the corresponding calculations of given flux in PMSM DTC system were derived. The control strategies can be achieved simply by changing the given flux. Simulation models of PMSM DTC and vector control(VC) system under different control strategies were built in MATLAB. The simulation results show that PMSM DTC systems can achieve the three control strategies of vector control system and verify correctness of the given flux calculations under three control strategies in PMSM DTC system.
出处
《微特电机》
北大核心
2016年第4期47-51,共5页
Small & Special Electrical Machines
基金
国家自然科学基金项目(51077007)
关键词
永磁同步电动机
直接转矩控制
控制策略
磁链给定
permanent magnet synchronous motor (PMSM)
direct torque control (DTC)
control strategies
givenflux