六相永磁同步电机串联系统控制的两种方法分析研究

摘要

笔者以逆变器驱动两台双Y移30°永磁同步电机(PMSM)的串联系统为例,给出了串联系统的工作原理，采用id=0的矢量控制策略及电流滞环控制和PWM载波控制两种控制串联解耦的方法。在Matlab/simulink环境下，分别用这两种方法对两台电机串联系统的运行特性进行仿真研究。当其中一台电机转速、负载变化时，分析两种方法下另外一台电机独立运行的情况,验证分析这两种方法的可行性及优缺点。%This paper describes a system in which two dual-Y shifted by 30 ° permanent magnet synchronous motors (PMSM) in series are drove by an inverter ,and it explains the scheme of the system,using the way of vector control which make id equal to 0 and decoupling the two control methods of hysteresis current control and PWM carrier control. In Matlab / simulink environment, it studies respectively the operating characteristics of the system under the two control methods. By analyzing how one case of motor works independently while the speed, load of the other motor changes, the feasibility and the advantages and disadvantages of the two methods are validated and analyzed.