Overview on active disturbance rejection control for electro-mechanical actuation servo drive

Permanent magnet synchronous motor based electro-mechanical actuation servo drives have widespread applications in the aviation field, such as unmanned aerial vehicle electric servos, electric cabin doors, and mechanical arms. The performance of the servo drive, which encompasses the response to the torque, efficiency, control bandwidth and the steady-state positioning accuracy, significantly influences the performance of the aviation actuation. Consequently, enhancing the control bandwidth and refining the positioning accuracy of aviation electro-mechanical actuation servo drives have emerged as a focal point of research. This paper investigates the multi-source disturbances present in aviation electro-mechanical actuation servo systems and summarizes recent research on high-performance servo control methods based on active disturbance rejection control (ADRC). We present a comprehensive overview of the research status pertaining to servo control architecture, strategies for suppressing disturbances in the current loop, and ADRC-based strategies for the position loop. We delineate the research challenges and difficulties encountered by aviation electro-mechanical actuation servo drive control technology.