永磁同步电机全速域无传感器控制  

Sensorless Control of Permanent Magnet Synchronous Motor in Full Speed Domain

作　　者：桂永麟 于新红 GUI Yonglin;YU Xinhong(Modern Motor Control and Power Electronics Laboratory,Quanzhou Institute of Equipment Manufacturing,Haixi Institutes,Chinese Academy of Sciences,Quanzhou 362200,China)

机构地区：[1]中国科学院海西研究院泉州装备制造研究中心,现代电机控制与电力电子实验室,泉州362200

出　　处：《微特电机》2022年第8期37-41,共5页Small & Special Electrical Machines

基　　金：福建省科技计划项目(2021I0039,2021T3064,2021T3035)。

摘　　要：针对有效提升永磁同步电机全速域无传感器控制中系统鲁棒性及控制精度等问题,提出一种在宽调速范围内准确获取位置信息及转子速度的高性能混合控制策略。低速域采用新型高频正交方波注入法,利用反正切函数提取转子位置信息;中高速域则利用基波数学模型,采取高阶滑模观测器估计转子速度。为在宽速域中实现平滑切换,采用滞环算法控制切换策略。通过仿真和实验论证了永磁同步电机高性能全速域混合控制策略的可行性。Aiming at the problems of control accuracy and response speed in sensorless control of embedded permanent magnet synchronous motor(PMSM)in full speed range,a high-performance hybrid control strategy was proposed to accurately obtain position information and rotor speed within a wide speed range.High frequency orthogonal-square wave injection was used to extract rotor position information through arctangent function in low speed domain,and high order sliding mode observer was used to estimate rotor velocity in medium and high speed domain.In order to realize smooth switching in wide speed domain,hysteresis algorithm was used to control the switching strategy.The simulation and experiment results prove the feasibility and effectiveness of the hybrid control strategy.

关 键 词：永磁同步电机 无传感器控制 高频方波注入 滑模观测器 

分 类 号：TM351[电气工程—电机]