In view of the problems that traditional vector control of asynchronous motors based on PI control algorithm has such problems as large speed overshoot,slow system response and poor anti-interference ability,a vector control strategy for asynchronous motors based on active disturbance rejection control was proposed.Static control was proposed to make the system output the expected value in time.Linear active disturbance rejection control was introduced into the current loops,and the coupling terms of the current loops were regarded as total disturbances,which was compensated in real time by the linear extended state observer.Finally,the linear active disturbance rejection controller was improved and static control was introduced,a static linear active disturbance rejection control(S-LADRC)strategy was proposed,and applied to the speed loop and flux loop.The simulation results show that compared with the PI vector control strategy,the rotational speed response speed of the proposed control strategy is increased by 66.7％,the corresponding ro-tor flux speed is increased by 64.8％,and the robustness of the system is enhanced.
关键词
异步电机/矢量控制/静态线性自抗扰控制
Key words
asynchronous motors/vector control/static linear active disturbance rejection control
维普
万方数据