Dual Loop Sliding Mode Control for Permanent Magnet Synchronous Motor
Based on the advantages of high efficiency and fast response of permanent magnet synchro-nous motors,they are widely used in the manufacturing industry,and their control methods are also ex-tensively studied by scholars.However,parameter mismatch in traditional control methods of permanent magnet synchronous motors can lead to a decrease in motor control performance.To address this issue,a dual-loop sliding mode control strategy for permanent magnet synchronous motors is proposed.Firstly,the mathematical model of the motor during parameter mismatch is analyzed and derived.Secondly,a sliding mode speed controller is designed for the speed loop,and a super-local model is introduced for the current loop.A sliding mode disturbance observer is designed to accurately observe the unknown part,and the stability of the sliding mode disturbance observer is proven using Lyapunov theory.Final-ly,compared with the simulation results of traditional finite set model predictive control,the proposed control strategy can further improve the disturbance rejection performance of permanent magnet synchro-nous motors under parameter mismatch,thereby enhancing system robustness.
万方数据
维普
