Optimized Control of the Doubly Fed Induction Generator System Based on input-output Linearizing Scheme. Issue 1 (February 2014)

• Record Type: Journal Article
• Authors: Chen, Guodong; Zhang, Luhua; Cai, Xu
• Is Part Of: Wind engineering. Volume 38:Issue 1(2014)
• Page Start: 101
• Page End: 108
• Publication Date: 2014-02
• Subjects: wind power -- DFIG -- decoupling control -- input-output linearizing control; Wind-pressure -- Periodicals; Winds -- Periodicals; Wind power -- Periodicals; Engineering meteorology -- Periodicals; Pression du vent; Vents; Énergie éolienne; Météorologie appliquée; Engineering meteorology; Wind power; Wind-pressure; Winds; Periodicals; 621.4505
• DOI: 10.1260/0309-524X.38.1.101
• Languages: English
• ISSNs: 0309-524X

Abstract

With regard to a nonlinear system, designing the controller with the approximate linearized method is convenient, but it does not match with the nonlinear characteristic of the system, and also it will degrade the dynamic response. Vector control in the doubly fed wind system aims for decoupling control of active power and reactive power with a good dynamic performance. However, the active power and reactive power are only asymptotically decoupled. The control strategy is verified by a 7.5 kW wind power generation test rig under normal and abnormal conditions. Experiment results validate that the input-output linearizing and decoupling control can provide an improved dynamic response and a completely decoupled control of the doubly fed induction generator (DFIG) in both steady and dynamic state.