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Speed servo system of permanent magnet synchronous motors based on the inverse method

LIU Gang,LI Hua-de,CAO Yong School of Information Engineering,University of Science and Technology of Beijing,Beijing 100083,China  
A decoupling control approach based on inverse systems was developed for permanent magnet synchronous motors(PMSM).A novel inverse control scheme was proposed to decouple the performance of PMSM.On the base of the reversibility analysis of the PMSM's mathematical model,the PMSM system is decoupled into a second-order linear speed subsystem and a first-order linear stator current subsystem.Simulation results show that the proposed control scheme possesses excellent control performance and good robustness against load disturbance.
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