摘要
本文通过建立电稳态模型观测器,实现永磁同步电机低速转子位置和转速估算,完成电机的起动过程。在中高速运行时,本文构造全阶状态观测器,通过反电动势的观测及坐标系跟踪控制,实现转子位置和转速估算;本文提出的方法具有算法简单、起动电流小、切换平滑、可靠性高等优点,最后,实验结果证明了本方法的正确性和有效性。
This paper presents a strategy for rotor position and speed estimation at low-speed by establishment of electrical steady-state observer for PMSM. Consequently, starting process of PMSM is accomplished successfully. The baek-EMF state observer is designed under high-speed condition, and the rotor speed and position can be estimated by error-tracking controller. This method can achieve effective and stable starting, simple algorithm, small starting current and high reliability. Finally experimental results proved the correctness and validity of the method.
出处
《电工电能新技术》
CSCD
北大核心
2011年第1期12-15,共4页
Advanced Technology of Electrical Engineering and Energy
基金
上海自然科学基金资助项目(08zr1408600)
