基于模糊控制及复合磁链观测器的感应电机矢量控制系统

Simulation and Research on Induction Motor Vector Control System Base on Fuzzy Control and Composite Rotor Flux Observer

采用基于电压模型及电流模型的复合磁链观测器,避免了矢量控制时异步电机工作温升引起的转子电阻变化所带来的磁链观测不准确问题。该文通过采用双层模糊P I控制器进一步减小了电机工作时定、转子参数变化对系统性能的影响,并在获得较好鲁棒性的同时,提高了整个系统的调速性能。

A composite rotor flux observer is applied to induction motor vector control system,which makes the system avoid to be influenced by the alteration of rotor resistance. Using fuzzy PI controller enhanced the robustness of the system and received more preferable speed-control performance,less influence from the alteration of motor parameters.