基于MRAS永磁同步电机无速度传感器的改进控制策略  

Improved Speed Sensorless Control of PMSM Based on Model Reference Adaptive System

作　　者：吴新兵 章玮[2] 谈方成 WU Xinbing;ZHANG Wei;TAN Fangcheng(Suzhou Higec Co.,Ltd.,Suzhou 215122,China;College of Electrical Engineering,Zhejiang University,Hangzhou 310027,China)

机构地区：[1]苏州海格电控股份有限公司,苏州215122 [2]浙江大学电气工程学院,杭州310027

出　　处：《微特电机》2023年第7期34-39,共6页Small & Special Electrical Machines

摘　　要：为了优化永磁同步电机无速度传感器的控制策略,对模型参考自适应永磁同步电机控制算法进行了改进。设计了基于同步旋转坐标系下的定子磁链状态方程模型参考自适应的修正补偿,改善了可调模型的可控性,转速抖动小,收敛速度快;理论验证和仿真结果表明,改进后的控制策略对电机实际参数的依赖性低,适用于参数可发生变化的实际工况,提高了永磁同步电机矢量控制的鲁棒性以及系统稳定性。In order to optimize the control strategy of permanent magnet synchronous motor(PMSM)and improve the speed sensorless algorithm for PMSM based on model reference adaptive system(MRAS),a feedback section for integral compensation based on MRAS stator flux state equation under synchronous frame was designed to increase the controllability of the controlled model,reduce the vibration and settling time of the rotation speed.Theoretical analysis and simulation results show that implementing the improved control technique could bring low dependence on the actual motor parameters and is applicable to parameters fluctuated working conditions,which enhances the robustness and system stability of PMSM field-oriented control.

关 键 词：永磁同步电机 无速度传感器 自适应控制 模型参考自适应 矢量控制 

分 类 号：TM351[电气工程—电机]