摘要
针对零低速下内置式永磁同步电机的无位置传感器控制方法存在精度低、稳定性差等问题,提出了一种滑膜控制下的基于脉振高频注入法的无位置传感器控制方法。基于电机的固有或人为的凸极效应,脉振高频注入法对电机的基波方程和参数没有依赖性,可有效估算出包括零速在内的电机转子位置和速度,实现永磁同步电机的无速度传感器控制。仿真结果表明,内置式永磁同步电机在滑模控制下能在低转速突变、负载转矩扰动的情况下,快速、准确估算转速和转子位置,动态性能好,鲁棒性强。
The sensorless control method of built-in permanent magnet synchronous motor(PMSM)at zero-low speed has some problems such as low accuracy and poor stability.Aiming at these problems,a position sensorless control method of high frequency pulse injection based on sliding film control is proposed.Based on the inherent or artificial salient pole effect of the motor,the pulse high frequency injection method has no dependence on the fundamental equations and parameters of the motor,and can effectively estimate the rotor position and speed including the zero speed,speed sensorless control of permanent magnet synchronous motor.The simulation results show that the built-in permanent magnet synchronous motor can estimate the speed and rotor position quickly and accurately under the condition of low speed mutation and load torque disturbance under the sliding mode control,with good dynamic performance and strong robustness.
作者
王清清
胡继胜
WANG Qingqing;HU Jisheng(School of Locomotive and Rolling Stock Engineering,Dalian Jiaotong University,Dalian 116028,China)
出处
《电工技术》
2022年第17期197-199,203,共4页
Electric Engineering
