永磁直线同步电机ADRC控制系统  

PMLSM Active Disturbance Rejection Control

作　　者：闫光亚[1] 艾武[1] 陈冰[1] 肖鹏[1] 

机构地区：[1]华中科技大学数字制造装备与技术国家重点实验室,武汉430074

出　　处：《电工技术学报》2011年第9期60-66,共7页Transactions of China Electrotechnical Society

基　　金：数字制造装备与技术国家重点实验室自主课题项目(2009-7)

摘　　要：纹波推力扰动、负载扰动、摩擦力扰动和其他不确定性扰动严重影响永磁直线同步电机(PMLSM)控制系统的性能,对控制系统的抗干扰能力提出了更高的要求。本文采用自抗扰控制(ADRC)方法,利用扩张状态观测器估计所有未知扰动作用量并给予实时动态补偿,从而抑制未知扰动实现"自抗扰"控制,同时估计出速度及其微分;跟踪微分器给出了一种计算微分的有效方法,并根据PMLSM的承受能力安排速度指令过渡过程;采用更合适的非线性PD误差反馈率计算控制量。利用基于Matlab/Simulink的xPC Target构建控制系统实验平台,实验结果表明,采用ADRC的PMLSM控制系统具有很强的抗扰性和静动态特性。Ripple thrust disturbances,load disturbances,friction disturbance and other uncertainty disturbances severely deteriorate performance of permanent magnet linear synchronous motor（PMLSM） control system,and the control system put forward higher requirements on disturbance rejection.In this paper,active disturbance rejection control（ADRC） is applied,using the extended state observer（ESO） to observe and compensate the action of the entire unknown disturbance,and thus inhibit the unknown disturbances to achieve ＂self-resistance interference＂ control,while giving estimated speed and its differential.The tracking differentiator（TD） offers an effective method of calculating differential,and arranges transition of speed command according to the capacity of PMLSM.Control variable is obtained by more suitable non-linear PD feedback control law.The test bench is build using xPC Target tool of Matlab/Simulink,and experiment results show that the PMLSM ADRC control system has good performance of disturbance rejection and dynamics.

关 键 词：永磁直线同步电机 自抗扰控制 扩张状态观测器 跟踪微分器 非线性PD 

分 类 号：TM359[电气工程—电机]