Dual active disturbance rejection control of permanent magnet synchronous wind generators

In this paper, a linear active disturbance rejection controller (LADRC) is introduced to control the speed loop and current loop of a permanent magnet synchronous generator (PMSG). The speed loop uses a first-order LADRC (FLADRC) to avoid overshoot and to speed up the dynamic response of speed tracking. In the current loop, considering the influence of the converter, a second-order LADRC (SLADRC) is designed. In addition, the convergence of the proposed strategy is verified, and the tuning method of the control parameters is given. The proposed control strategy has strong anti-interference capability in a wide frequency band, and its effectiveness and practicability are verified by simulation and experimental results.