交流电机无传感器控制的新进展

无(位置、速度)传感器控制是当前国内外交流电机传动的热点,在20世纪末已经形成了以交流电机的Park方程为基础的基于电机基波模型的无传感器控制和以高频信号注入法为基础的基于电机谐波模型的无传感器控制两大体系.在介绍无传感器控制的基本策略的基础上,以近两年发表在国际重要学术刊物和学术会议的相关学术论文以及其引文为主要调研对象,按照基于基波模型和谐波模型的两大方向,介绍了近年来国际上无传感器控制策略的新进展,并进行了分析比较,进而揭示了无传感器控制发展的新特点和新趋势.

New Advancements in Sensorless Control of AC Motor

(Speed/Position)sensorless control is one of the hotspots in international AC drive field.In the end of 20th century,two main flowings were formed,including the algorithms based on motor's fundamental wave model with Park transformation and the high-frequency injection algorithms with high-frequency injection based on the motor's harmonic model.With the primary introduction of the basic principle of sensorless control at first,the new advancements in sensorless control strategies in the paths of the fundamental wave model and harmonic model was introduced.Most of the strategies are referred from the recent academic journals and academic conferences in the recent two years.The comparisons of these strategies are concluded in order to explore the new characteristics and tendency of the development of sensorless control.