永磁同步电机的双闭环调速系统设计

永磁同步电机因其优越的性能近年来得到了广泛应用。针对双闭环控制器参数整定困难所导致的控制效果不佳的问题,文中提出了基于极点配置和Ramp函数的改进型双闭环PI控制器。从永磁同步电机矢量控制算法的角度出发,建立了速度、电流双闭环解耦控制的系统模型,并在此模型下论述了速度环、电流环控制器的设计方法,给出改进后双闭环控制器参数的计算结果。对所研究方法分别进行了计算机仿真和实际试验,结果表明优化后的系统减小了系统过冲,缩短了稳定时间,提高了系统动态响应,具有良好的工程意义。

Design of Double Closed-loop Speed Regulating System for Permanent Magnet Synchronous Motor

Permanent magnet synchronous motor has been widely used for its excellent performance. Aiming at the problem of unsatisfactory control results caused by the difficulty in parameter setting of dual closed-loop controllers, an improved double closed-loop PI controller based on pole configuration and Ramp function was proposed. From the perspective of the vector control algorithm of the permanent magnet synchronous motor, the system model of decoupling control with double closed-loop speed and current was established. In this model, the design methods of speed loop and current loop controller were discussed, and the calculation results of the parameters of the improved double loop controller were given. Computer simulations and practical tests were conducted on the research methods. The results showed that the optimized system reduced system overshoot, shortened the settling time, improved the dynamic response of the system, which indicated good engineering significance.