永磁同步电机控制参数设计方法

Design strategy of control parameters for permanent magnet synchronous motor

磁场定向控制(FOC)由于其良好的解耦性、较小的转矩脉动和容易实现等优点,成为最广泛使用的永磁同步电机控制方法。电流环参数设计是磁场定向控制的关键。本文通过对电流环进行分析,采用传递函数分析的方法,在考虑交叉耦合的条件下推导控制参数与电流控制性能的关系,给出控制参数的优化选取原则。

Field oriented control（ FOC） has become the most widely used method of permanent magnet synchronous motor because of its good decoupling,small torque ripple and easy realization. Current loop parameter design is the key of field oriented control. In this paper,the relationship between the control parameters and the performance of current control is deduced with the method of transfer function analysis. The optimal selection principle of control parameters is given.