ABSTRACT
This chapter introduces the structure and working principles of the Active Disturbance Rejection Controller (ADRC). It describes the active disturbance rejection controller is applied to the system of distributed power control and the simulation is carried out. The chapter discusses a new tuning method to use ADRC in the distributed power supply; the ADRC is applied to the tracking control of current, and Extended-State Observer is used to observe the unknown load disturbance. It explores the use of an active disturbance rejection controller in distributed power supply, which can effectively control the harmonics and convergence of the distributed power supply. The control strategy of active disturbance rejection control which is used in the automatic control system is practical and effective. The control strategy of active disturbance rejection control is based on the classical control theory and the modern control theory proposed by Han Jingqing in the 1990s.
