摘要
针对传统无位置传感器控制算法中存在信号复杂程度高计算复杂以及基频与高频信号之间分离困难等问题,提出了一种基于定子电流微分的同步磁阻电机无传感器控制算法。该算法通过对定子电流微分及主电感表达式进行推导得出新的转子位置角检测公式,并通过主电感值进一步确定转子位置角所在的区间,以达到对电机转子位置的估算。利用定子电流微分参数对电机转子位置估算,简化了计算的复杂程度,有效的减少了谐波以及频率对电机无传感器控制的影响,实现了电机的宽速域范围稳定运行。同时这里设计了一种由异步电机改制而成的同步磁阻电机,改制后电机的性能可等效于同步磁阻电机使用。仿真结果表明:提出的无传感器控制算法能相对精确的估算转子位置,具有良好的抗干扰性和精确性。
In view of the problems of high signal complexity and computational complexity and difficulty in separating fundamental frequency and high frequency signals in the traditional position sensorless control algorithm,a sensorless control algorithm for synchronous reluctance motor based on the stator current differential is proposed.The algorithm derives a new rotor position angle detection formula by deriving the stator current differential and the main inductance expression,and further determines the interval of the rotor position angle through the main inductance value to estimate the rotor position of the motor.The use of the stator current differential parameter to estimate the rotor position of the motor simplifies the complexity of the calculation,effectively reduces the influence of harmonics and frequency on the sensorless control of the motor,the stable operation of the motor in a wide speed range is realized.At the same time,it designs a synchronous reluctance motor which is modified from asynchronous motor.The performance of the reformed motor can be equivalent to that of synchronous reluctance motor.The simulation results show that the proposed sensorless control algorithm can estimate the rotor position relatively accurately,and has good anti-interference and accuracy.
作者
郝成
张天齐
张瑞成
张执超
HAO Cheng;ZHANG Tianqi;ZHANG Ruicheng;ZHANG Zhichao(School of Electrical Engineering,North China University of Science and Technology,Hebei Tangshan 063210,China)
出处
《机械设计与制造》
北大核心
2026年第2期165-170,共6页
Machinery Design & Manufacture
基金
河北省自然科学基金资助项目(F20180209201)。
关键词
同步磁阻电机
定子电流微分
改制电机
无位置传感器控制
Synchronous Reluctance Motor
Stator Current Differential
Remodeled Motor
Position Sensorless Control
