Paper Info
Title
Nonlinear Dual-Mode Control of Variable-Speed Wind Turbines With Doubly Fed Induction Generators
Abstract
This paper presents a feedback/feedforward nonlinear controller for variable-speed wind turbines with doubly fed induction generators. By appropriately adjusting the rotor voltages and the blade pitch angle, the controller simultaneously enables: 1) control of the active power in both the maximum power tracking and power regulation modes; 2) seamless switching between the two modes; and 3) control of the reactive power so that a desirable power factor is maintained. Unlike many existing designs, the controller is developed based on original, nonlinear, electromechanically-coupled models of wind turbines, without attempting approximate linearization. Its development consists of three steps: 1) employ feedback linearization to exactly cancel some of the nonlinearities and perform arbitrary pole placement; 2) design a speed controller that makes the rotor angular velocity track a desired reference whenever possible; and 3) introduce a Lyapunov-like function and present a gradient-based approach for minimizing this function. The effectiveness of the controller is demonstrated through simulation of a wind turbine operating under several scenarios.
Year
DOI
Venue
2011
10.1109/TCST.2010.2053931
IEEE Trans. Contr. Sys. Techn.
Keywords
Field
DocType
Wind turbines,Induction generators,Voltage control,Rotors,Blades,Reactive power control,Reactive power,Linear approximation,State feedback,Linear feedback control systems
Electric generator,Control theory,Nonlinear control,Control theory,Feedback linearization,Blade pitch,AC power,Control engineering,Wind power,Mathematics,Induction generator
Journal
Volume
Issue
ISSN
19
4
1063-6536
Citations 
PageRank 
References 
15
1.71
5
Authors
3
Name
Order
Citations
PageRank
Choon Yik Tang18512.90
Yi Guo2558.79
John N. Jiang3183.26