Fractional-Order PID Controller for Active Power Filter Using Active Disturbance Rejection Control

Abstract EN

This paper proposed a fractional-order PID controller and active disturbance rejection control (ADRC) method for the current compensation of active power filter (APF).

The control method consists of two closed loops.

One is a reference current tracking loop based on the ADRC controller, which can treat the internal and external uncertainties of the system as a whole.

The other is the voltage control loop with the fractional-order PID controller for more flexibility.

Simulation results demonstrate that the proposed control method has a stronger robustness and higher compensating precision comparing with the double-loop PID control method.