基于扰动估计器的永磁同步电机滑模控制  

Sliding Mode Approach of PMSM Using Disturbance Estimator

作　　者：王乐园 王树波 WANG Le-yuan;WANG Shu-bo(School of Automation,Qingdao University,Qingdao 266071,China;Shandong Key Laboratory of Industrial Control Technology,Qingdao 266071,China)

机构地区：[1]青岛大学自动化学院,青岛266071 [2]山东省工业控制技术重点实验室,青岛266071

出　　处：《自动化与仪表》2022年第8期30-35,共6页Automation & Instrumentation

摘　　要：为优化永磁同步电机调速系统的控制性能,该文设计了一种基于不确定干扰观测器的新型滑模控制策略。在滑模控制策略对永磁同步电机双闭环系统控制的基础上,引入一种变速趋近律,使得控制系统具备优异的瞬态与稳定特性。针对未知扰动,设计了一种不确定扰动估计器来观察集总扰动,在此基础上设计控制器,并将观察到的未知干扰进行前馈补偿。通过仿真对比,证明了所提策略在削弱电流波纹、降低调节时间上的有效性。For the sake of optimizing the control function of permanent magnet synchronous motor speed regulation system,a new sliding mode control strategy based on uncertain disturbance observer is designed.Based on the sliding mode control strategy for the double closed-loop system of permanent magnet synchronous motor,a variable speed reaching law is introduced to make the control system have excellent transient and stability characteristics.For the unknown disturbance,an uncertain disturbance estimator is designed to observe the total disturbance.On this basis,the controller is designed,and the observed unknown disturbance is feedforward compensated.Simulation results show that the proposed strategy is effective in weakening current ripple and reducing regulation time.

关 键 词：永磁同步电机 滑模控制 不确定性和扰动估计器 抗干扰能力 

分 类 号：TP242[自动化与计算机技术—检测技术与自动化装置]