Perturbation Estimation Based Nonlinear Adaptive Power Decoupling Control for DFIG Wind Turbine



Shi, Kai, Yin, Xin, Jiang, Lin ORCID: 0000-0001-6531-2791, Liu, Yang, Hu, Yihua ORCID: 0000-0002-1007-1617 and Wen, Huiqing
(2020) Perturbation Estimation Based Nonlinear Adaptive Power Decoupling Control for DFIG Wind Turbine. IEEE Transactions on Power Electronics, 35 (1). 319 - 333.

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Abstract

This paper proposes a perturbation estimation based nonlinear adaptive power decoupling controller for doubly fed induction generator based wind turbines (DFIG-WTs). Perturbation states are defined to include the nonlinearities, uncertainties of the system model, the cross-coupling between control loops, and external disturbances. Perturbation observers are designed to estimate the fast time-varying perturbation states. With perturbation estimation, the DFIG-WT system is fully decoupled, and an output feedback control can be designed for the control of rotor currents. Rotor current references are calculated based on the steady-state relation between active/reactive power and rotor current, and stator dynamic is ignored. The performance of the proposed controller is evaluated and verified via both simulation and experimental tests.

Item Type: Article
Uncontrolled Keywords: Doubly fed induction generator based wind turbine (DFIG-WT), nonlinear adaptive control, perturbation estimation, power control
Depositing User: Symplectic Admin
Date Deposited: 11 Nov 2019 16:46
Last Modified: 11 May 2021 10:46
DOI: 10.1109/tpel.2019.2911886
Related URLs:
URI: https://livrepository.liverpool.ac.uk/id/eprint/3061340