Abstract
In this paper, the PMSM is taken as the research object, and the active disturbance rejection controller (ADRC) is used to construct the speed closed-loop to improve the system immunity. For nonlinear active disturbance rejection controller (NLADRC), it has high tracking accuracy and strong anti-interference ability under small disturbance, but linear active disturbance rejection controller (LADRC) has the characteristics of strong anti-interference ability under large disturbance and fast recovery time. Combining the advantages of NLADRC and LADRC and avoiding the shortcomings of both, a linear / nonlinear active disturbance rejection switching control strategy (SADRC) is proposed and verified on a permanent magnet synchronous motor platform with a DC generator as the load.
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