基于滑模变结构的内置式永磁同步电机弱磁矢量控制

Flux-weakening Vector Control of Interior Permanent Magnet Synchronous Motor Based on Sliding Mode Variable Structure Controller

设计了一种弱磁控制方法和一种滑模变结构的控制器来提升内置式永磁同步电机弱磁性能,并结合最大转矩电流比和矢量控制方法对内置式永磁同步电机低速和高速控制策略进行研究.同时,在电流环引入抗饱和积分器来防止高速弱磁控制时电流调节器进入饱和状态.仿真结果表明,所设计的弱磁控制方法可以有效的实现弱磁控制;同时,所设计的滑模控制器和引入的抗饱和积分器可以增强系统控制性能.

We design a flux-weakening control method and sliding mode variable structure controller to improve the flux-weakening properties of the interior permanent magnet synchronous motor. We also investigate the lowand high-speed control strategy of the interior permanent magnet synchronous motor by combining maximum torque per ampere and vector control method. At the same time,during the flux-weakening control phase at high speed,the anti-windup integral controller is introduced into the current loop to prevent the current regulator from entering the saturated state. Simulation results show that the designed flux-weakening control method can effectively achieve flux-weakening control. The designed sliding mode controller and the introduced anti-windup integral controller can enhance system control performance.