基于非注入法PMSM无位置传感器控制策略研究  

Research on Sensorless Control Strategy of PMSM Based on Non-Injection Method

作　　者：谢曼莎 XIE Man-sha(Academy of Automation,Beijing Information Science&Technology University,Beijing 100192,China)

机构地区：[1]北京信息科技大学自动化学院,北京100192

出　　处：《微特电机》2021年第5期34-36,共3页Small & Special Electrical Machines

摘　　要：针对永磁同步电机无位置传感器控制在低速起动阶段电机转子位置难以精确获得等问题,提出了利用电流导数在零电压矢量区间对电机转子位置进行估计的方案。对零电压矢量区间d轴电流导数及电机运行状态的研究,估计出电机转子的位置信息,仿真验证表明,该方案能较精确估计出电机转子位置。Aiming at the problem that the rotor position of permanent magnet synchronous motor(PMSM)at low-speed in startingstage is difficult to obtainedbysensorless control,a scheme to estimate the rotor position by using the current derivative in the zero voltage vector interval was put forward.By studying the d-axis current derivative in the zero voltage vector interval and the motor running state,the rotor position was estimated.The simulation results show that this scheme can estimate the rotor position accurately.

关 键 词：永磁同步电机 无位置传感器控制 电流导数 零电压矢量 

分 类 号：TM351[电气工程—电机]