摘要
该文结合基频电流注入新策略与磁链估计方法对感应电动机提出了一种无速度传感器控制策略。在电机低速区域,通过在d轴注入基频定子电流以及使用信号处理方法实现转子磁链位置估计。在高速区域,基于定子电压和电流信息通过转子磁链估计方法推算出转子磁链位置。基于转子磁场定向控制的系统实验结果验证了该方案的正确性。
This paper presents a speed sensorless control scheme of an induction machine combining a novel fundamental-frequency current injection method in the low-speed region and the flux estimation method based on the stator voltages and currents in the high-speed region. The rotor flux position can be estimated from d-axis stator fundamental-frequency current injection and the signal processing in a low-speed region. In the high-speed region, the rotor flux position can be estimated by the rotor flux from the voltage and currents information. Experimental results based on rotor field-oriented control are given to verify the proposed scheme.
出处
《中国电机工程学报》
EI
CSCD
北大核心
2005年第22期163-167,共5页
Proceedings of the CSEE
关键词
电机
无速度传感器控制
感应电动机
基频电流注入
Electric machinery
Speed sensorless control
Induction machine
Fundamental-frequency current injection
