永磁同步電機(jī)調(diào)速系統(tǒng)的快速冪次趨近律控制
[Abstract]:A sliding mode variable structure controller based on fast power approach law is proposed to solve the problem that the Pi controller can not meet the requirements of high precision control and is prone to integral saturation in the permanent magnet synchronous motor (permanent magnet synchronous motor,PMSM) speed control system with PI controller. The approach law is based on the power approach law and adds the exponential term and the system state variable. Among them, the exponential term has a faster convergence rate, which can solve the problem of the power law moving slowly away from the sliding mode surface, and the system state variable can suppress the buffeting caused by the introduction of the exponential term. Based on the improved approach law, the sliding mode speed regulator of permanent magnet synchronous motor is designed, and its stability is analyzed by Lyapunov function. Compared with the PI speed controller, the simulation results show that the system with this controller can achieve no overshoot tracking, and has the advantages of high stability and strong anti-load disturbance.
【作者單位】: 中國礦業(yè)大學(xué)電氣與動(dòng)力工程學(xué)院;
【基金】:江蘇省煤礦電氣與自動(dòng)化工程實(shí)驗(yàn)室建設(shè)項(xiàng)目(2014KJZX05)
【分類號】:TM341
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