摘要
针对传统比例积分(PI)控制器在负载突变时存在响应速度慢、调节能力不足、鲁棒性差等问题,在直驱永磁同步电机(DPMSM)控制中采用自抗扰控制器取代传统PI控制器。其中采用了一个在原点周围具有良好连续性和平滑性的新型非线性控制函数,为了提高DPMSM无位置传感器的控制性能,滑模观测器中采用双曲正切函数取代符号函数,减小系统抖振。仿真结果表明:改进后的控制系统在突加负载时转速最大跌落量减小了40 r/min,且恢复时间相较于传统控制系统加快了0.01 s,有效提高了控制系统的响应速度和抗负载扰动的能力。
Aiming at the problems of traditional proportional integral(PI) controller, such as slow response speed, insufficient regulation ability and poor robustness, active disturbance rejection controller is used in direct drive permanent magnet synchronous motor(DPMSM) control.A new nonlinear control function with good continuity and smoothness around the origin is adopted in the active disturbance rejection controller to optimize the traditional nonlinear function.In addition, in order to improve the sensorless control performance of direct drive permanent magnet synchronous motor, the sliding mode observer is improved and the hyperbolic tangent function is used instead of the traditional symbol function to reduce system chattering.The simulation results show that when the motor starts without load, the maximum speed drop of the improved control system is reduced by 40 r/min, when sudden loading, and the recovery time is accelerated by 0.01 s compared with the traditional control system, which effectively improves the response speed of the control system and the ability of resisting load disturbance.
作者
刘宇佳
孟克其劳
海日罕
王腾
马剑龙
LIU Yujia;MENG Keqilao;HAI Rihan;WANG Teng;MA Jianlong(College of Energy and Power Engineering,Inner Mongolia University of Technology,Hohhot 010051,China;Key Laboratory of Wind Energy and Solar Energy Utilization Technology of Ministry of Education,Hohhot 010051,China;Inner Mongolia Wind Power Technology and Detection Engineering Technology Research Center,Hohhot 010051,China)
出处
《传感器与微系统》
CSCD
北大核心
2021年第12期35-39,共5页
Transducer and Microsystem Technologies
基金
内蒙古自治区科技重大专项项目(2020ZD0016)。
关键词
直驱永磁同步电机
自抗扰控制器
滑模观测器
非线性函数
direct drive permanent magnet synchronous motor(DPMSM)
active disturbance rejection controller(ADRC)
sliding mode observer(SMO)
nonlinear function
