Research on a PMSM Control Strategy Based on Improved SM-ADRC
In the control of permanent magnet synchronous motors(PMSM),traditional sliding mode active disturbance rejection control(SM-ADRC)can reduce the influence of external load variation and parameter variation on the control system performance degradation,but there are still too many controller parameters and the setting is too complicated.Therefore,an improved SM-ADRC method is proposed.A new control function is designed and introduced into ESO and NLSEF to obtain a new sliding mode state observer(SM-ESO)and a new sliding mode state error feedback control law(SM-NLSEF),which reduces the number of parameters to be adjusted and simplifies the parameter setting of the SM-ADRC.A Simulink simulation model and a Links-RT semi-physical simulation experimental platform are established.The simulation and experimental results show that the improved SM-ADRC simplifies parameter setting and improves the response speed and the immunity performance of the sys-tem compared with the traditional SM-ADRC.In addition,it also deceases current impulses.
sliding mode active disturbance rejection controllaw of approachnew control functionparameter setting
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