DocumentCode :
3098507
Title :
Inverse-System Control Approach for Variable-Speed Variable-Pitch Wind Generator
Author :
Geng, Hua ; Zhou, Weisong ; Yang, Geng
Author_Institution :
Tsinghua Univ., Beijing
fYear :
2007
fDate :
5-8 Nov. 2007
Firstpage :
1627
Lastpage :
1632
Abstract :
This paper presents an inverse-system control approach for Variable-Speed Variable-Pitch Wind Generator Systems (VSVP-WGS) in order to optimize the wind energy conversion in a high wind speed region. The controller synthesizes the ideas of two-time-scale approach and inverse-system method. Based on two-time-scale analysis, the model of VSVP-WGS can be reduced to a first-order one with non-affine and nonlinear characteristics. With inverse-system method, the nonlinear model is converted into a pseudo-linear one and then can be stabilized simply by linear system approach. The performance of the inverse-system controller (ISC), which is confirmed through theory analyses and simulations, show that, compared with a proportional-integral controller (PIC), it makes VSVP-WGS provide a wider operating region and generate smoother output power. Compared with other nonlinear controllers, ISC is simpler and can be more easily transplanted to other kinds of WGS.
Keywords :
electric generators; wind power plants; VSVP-WGS; energy conversion; inverse-system control; inverse-system method; two-time-scale approach; variable-speed variable-pitch wind generator; Control system synthesis; Control systems; Linear systems; Performance analysis; Pi control; Power generation; Proportional control; Wind energy; Wind energy generation; Wind speed;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
Industrial Electronics Society, 2007. IECON 2007. 33rd Annual Conference of the IEEE
Conference_Location :
Taipei
ISSN :
1553-572X
Print_ISBN :
1-4244-0783-4
Type :
conf
DOI :
10.1109/IECON.2007.4460174
Filename :
4460174
Link To Document :
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