摘要
本文采用一阶线性自抗扰控制(LADRC)作为永磁同步电机(PMSM)矢量控制系统的调速算法,针对传统LADRC固定的扰动观测增益难以同时实现抗噪与抗扰双优化的问题,本文提出了根据扰动进行自适应调整的线性扩张状态观测器(LESO)变增益策略,设计出实用简单的变增益线性扩张状态观测器(VLESO),并分析了其收敛性和参数特性。最后通过Simulink搭建控制系统模型并进行仿真,得出结论,基于变增益策略的线性自抗扰控制(VLADRC)兼具出色的噪声抑制和抗干扰能力,将其运用于PMSM的矢量控制调速系统,有效提高了调速系统的抗负载与抗噪性能,验证了该方法的可行性。
In this paper,the first-order linear auto disturbance rejection control(LADRC)was used as the speed regulation algorithm of PMSM vector control system.Aiming at the problem that the fixed disturbance observation gain of traditional LADRC was difficult to realize the dual optimization of anti noise and anti disturbance at the same time,a variable gain strategy of linear extended state observer(LESO)was proposed,which adjusted by the disturbance adaptively.And a practical and simple Variable Gain Linear Extended State Observer(VLESO)was designed and its convergence and parameter characteristics was analyzed.Finally,the control system model was built and simulated by Simulink.It was concluded that the linear active disturbance rejection control based on variable gain strategy(VLADRC)has excellent noise suppression and anti-interference ability.It was applied to vector control speed regulation system of PMSM,which effectively improved the anti-load and anti-noise performance of speed regulation system,and verified the feasibility of this method.
作者
李寅生
陈永军
LI Yinsheng;CHEN Yongjun(Yangtze University, Jingzhou Hubei 434023, China)
出处
《微电机》
北大核心
2020年第4期77-82,共6页
Micromotors
基金
湖北省荆楚卓越工程师协同育人计划项目(2017-29)。
关键词
永磁同步电机
矢量控制
线性自抗扰控制
线性扩张状态观测器
变增益策略
permanent magnet synchronous motor(PMSM)
vector control
linear auto disturbance rejection control(VLADRC)
linear extended state observer(LESO)
variable gain strategy
