表贴式永磁同步电机的无位置传感器矢量控制  

Position sensorless vector control of surface-mounted permanent magnet synchronous motor

作　　者：方遒[1,2,3] 魏才柱 洪剑锋 刘华 胡翔 陈文芗 FANG Qiu;WEI Caizhu;HONG Jianfeng;LIU Hua;HU Xiang;CHEN Wenxiang(Fujian Collaborative Innovation Center for R&D of Coach and Special Vehicle,Xiamen University of Technology,Xiamen 361024,China;School of Aerospace Engineering,Xiamen University,Xiamen 361102,China;Fujian Key Laboratory of Bus Advanced Design and Manufacture,Xiamen 361024,China)

机构地区：[1]厦门理工学院福建省客车及特种车辆研发协同创新中心,福建厦门361024 [2]厦门大学航空航天学院,福建厦门361102 [3]福建省客车先进设计与制造重点实验室,福建厦门361024

出　　处：《厦门大学学报（自然科学版）》2021年第6期1048-1056,共9页Journal of Xiamen University：Natural Science

基　　金：国家自然科学基金(51777177);福建省科技厅高校产学研项目(2019H6024);厦门市科技计划项目(3502Z20183048)。

摘　　要：为降低成本并获得永磁同步电动机的精确转子位置,提出了一种基于改进型滑模观测器和速度外环滑模控制器的永磁同步电机无位置传感器矢量控制策略.基于基波数学模型构建闭环控制系统,引入饱和函数和锁相环对传统滑模观测器进行优化,提高转子位置及转速的检测精度.针对实际系统中速度外环采用比例积分(PI)控制器易受系统参数变化、负载扰动以及外界干扰影响的问题,设计了滑模控制器增强系统的鲁棒性.仿真和实验结果表明:改进后的系统有效地提升了系统检测精度,且速度外环的滑模控制相比于PI控制具有更好的动态性能.For the purpose of reducing the cost and obtaining the precise rotor position of a permanent magnet synchronous motor(PMSM),a position sensorless vector control strategy based on an improved sliding mode observer and speed outer loop sliding mode controller is proposed.A closed-loop control system is constructed based on the fundamental wave mathematical model.The saturation function and phase-locked loop are introduced to optimize the traditional sliding mode observer to improve the detection accuracy of the rotor position and speed.Aiming at the problem that the proportional integral(PI)controller in the outer loop of the actual system is susceptible to change in system parameters,load disturbance and external interference,we have designed a sliding mode controller to enhance the robustness of the system.Results of simulations and experiments show that the improved system effectively improves the detection accuracy of the system,and the sliding mode control of the speed outer loop exhibits better dynamic performances than the PI control does.

关 键 词：改进滑模观测器 滑模速度控制器 无传感器矢量控制 

分 类 号：U463.3[机械工程—车辆工程]