永磁同步电机无传感器技术位置角的优化策略  

Position Angle Optimization Strategy of Sensorless Technology for Permanent Magnet Synchronous Motor

作　　者：陈昌泽 冯雅茹 Chen Changze;Feng Yaru(School of Optical-Electrical and Computer Engineering,University of Shanghai for Science and Technology,Shanghai 200093,China)

机构地区：[1]上海理工大学光电信息与计算机工程学院,上海市200093

出　　处：《农业装备与车辆工程》2021年第6期84-87,92,共5页Agricultural Equipment & Vehicle Engineering

摘　　要：为了实现高速情况下永磁同步电机无位置传感器的磁场定向控制策略的进一步优化,以母线电流最小为目标对无位置算法计算所得的电机转子位置进行补偿,针对滑膜观测器的估算位置角误差设计优化策略,通过分析电枢电流与反电动势的关系,推导出母线电流与位置角的关系,实现基于母线电流的位置优化策略,以提高电机控制效率,最后通过仿真对所研究策略的可行性进行验证。In order to further optimize the sensorless field oriented control strategy of permanent magnet synchronous motor(PMSM)at high speed,the rotor position calculated by the position-free algorithm is compensated with the goal of minimizing the bus current.Aiming at the estimated position angle error of the synovial observer,the optimization strategy is designed,and the relationship between the bus current and the position angle is deduced by analyzing the relationship between the armature current and the back EMF.The position optimization strategy based on bus current is realized to improve the motor control efficiency.Finally,the feasibility of the strategy is verified by simulation.

关 键 词：永磁同步电机 母线电流 位置角 滑膜观测器 优化控制策略 

分 类 号：TM351[电气工程—电机]