基于负载转矩观测器的PMSM抗负载扰动控制策略  

Anti-load disturbance control strategy of PMSM based on load torque observer

作　　者：荀倩 王培良[1] 蔡志端[1] 李祖欣[1] 吕帅帅[2] 

机构地区：[1]湖州师范学院工学院,浙江湖州313000 [2]西北工业大学自动化学院,陕西西安710072

出　　处：《电工电能新技术》2016年第5期36-41,54,共7页Advanced Technology of Electrical Engineering and Energy

基　　金：国家自然科学基金(61573137);湖州市自然科学基金(2013YZ05);湖州市公益性技术应用研究计划(2015GZ05)资助项目

摘　　要：为提高永磁同步电机转速环的抗扰特性,本文提出一种基于转矩电流前馈补偿的永磁同步电机抗负载扰动控制策略,在转矩电流中加入负载转矩的补偿。为此,在降阶负载转矩观测器的基础上,提出一种改进型的观测器,在原有积分环节中加入比例环节对负载转矩进行实时观测,能有效提高负载转矩观测的收敛速度。仿真和实验结果表明负载转矩的观测具有一定的实时性,引入转矩电流的前馈补偿可以提高永磁同步电机转速环的鲁棒性。In order to improve the anti-disturbance characteristics of the PMSM speed loop,a new method based on the feedforward compensation of the torque current was presented in the paper. To this end,based on the reduced order load torque observer,an improved observer is proposed,which can effectively improve the convergence rate of the load torque observation in the original integral part of the load torque. Simulations and experiments show that the observation of the load torque has a certain real-time performance,and the feedforward compensation of the torque current can improve the robustness of PMSM.

关 键 词：转矩电流前馈补偿 负载扰动 改进型的观测器 鲁棒性 

分 类 号：TM315[电气工程—电机]