电机分数阶PI控制及DSP实现  

Fractional Order PI Control of PMSM and Implementation of DSP

作　　者：胡凯 黄家才[1] 季希宁 吴旭清 HU Kai;HUANG Jia-cai;JI Xi-ning;WU Xu-qing(School of Mechanical Engineering,Nanjing Institute of Technology,Nanjing 211167,China)

机构地区：[1]南京工程学院自动化工程学院,江苏南京211167

出　　处：《南京工程学院学报（自然科学版）》2018年第4期13-17,共5页Journal of Nanjing Institute of Technology(Natural Science Edition)

基　　金：国家自然科学基金项目(61104085);江苏省自然科学基金项目(BK20151463)

摘　　要：为了提高永磁同步电机的转速控制性能,引入分数阶控制器.针对永磁同步电机电流和速度的双闭环系统,建立电机模型并推导其传递函数;根据Flat Phase原则,在电机速度环中设计分数阶PI~λ控制器,对分数阶控制器和整数阶控制器分别进行多种转速试验对比.试验结果表明,分数阶PI~λ控制器的控制效果要优于整数阶PI控制器,降低了电机转速的均方根误差,提高了电机的转速控制精度.A fractional order controller is introduced to improve the speed performance of PMSM.Aiming at the double closed loop system of current and speed of PMSM,a motor model is established and its transfer function is derived.The fractional order PIλcontroller is designed according to the Flat Phase principle and applied to the speed loop of the motor,and then the fractional order PIλcontroller and the integer order controller are compared by experiments.The experimental results show that the behavior of fractional order controller is better than the integer order PI controller,the root mean square error of motor speed is reduced and the speed precision of the motor is higher.

关 键 词：分数阶控制 永磁同步电机 PIλ控制器 均方根误差 

分 类 号：TM341[电气工程—电机]