摘要
介绍了三电平空间矢量脉宽调制技术,并采用坐标变换、转子磁场定向控制、三电平空间矢量调制及直接转矩控制策略设计了一套永磁同步电动机控制系统。仿真结果表明,应用三电平空间矢量脉宽调制技术的永磁同步电动机直接转矩控制系统具有优异的性能。
This paper presents space-vector PWM(SVPWM)and modulation algorithm for three-level inverter in detail. Then a permanent magnet synchronous motor(PMSM) speed control System is designed using strategy of coordinate transformation, rotor flux-oriented control、three-level vector control and direct torque control(DTC).The distinguishing features of the system are that the three-level inverter has the less harmonic of output line voltage and output line current, the output torque can smoothly follow the track of input torque and output torque has the less fluctuation. The results of simulation show that the performance of the control system is excellent.
出处
《电工技术学报》
EI
CSCD
北大核心
2004年第4期28-32,共5页
Transactions of China Electrotechnical Society
