An aerodynamics-based novel optimal power extraction strategy for offshore wind farms with central VSCs

Chen, Si-Zhe, Xiong, Guozhuan, Zhang, Guidong, Yu, Samson Shenglong, Iu, Herbert Ho-Ching, Fernando, Tyrone and Zhang, Yun 2018, An aerodynamics-based novel optimal power extraction strategy for offshore wind farms with central VSCs, IEEE Access, vol. 6, pp. 44351-44361, doi: 10.1109/ACCESS.2018.2864600.

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Title An aerodynamics-based novel optimal power extraction strategy for offshore wind farms with central VSCs
Author(s) Chen, Si-Zhe
Xiong, Guozhuan
Zhang, Guidong
Yu, Samson ShenglongORCID iD for Yu, Samson Shenglong
Iu, Herbert Ho-Ching
Fernando, Tyrone
Zhang, Yun
Journal name IEEE Access
Volume number 6
Start page 44351
End page 44361
Total pages 11
Publisher IEEE
Place of publication Piscataway, N.J.
Publication date 2018
ISSN 2169-3536
Keyword(s) Science & Technology
Computer Science, Information Systems
Engineering, Electrical & Electronic
Computer Science
Centralized voltage source converters
optimal power extraction
particle swarm optimization
wind energy
Summary  Costly distributed converters are used in traditional offshore wind turbine generators (WTGs); recently, centralized voltage source converters (CVSC) have been utilized to replace the distributed ones for cost reduction. This method, however, reduces the wind energy that can be harvested from the environment, since all WTGs' synchronous rotational speeds depend on the frequency of the same CVSC but their wind speeds are generally different. To solve this problem, in this paper, a novel power optimization model is developed based on the aerodynamic characteristics of the wind in contact with the turbines. It is followed with the proposal of a novel maximum power generation strategy, using the particle swarm optimization algorithm. The proposed optimal power extraction (OPE) strategy can achieve the maximum power generation, and at the same time limit the excess power output to enhance operational safety. Simulation studies are conducted in this paper to validate the proposed OPE strategy for WTGs, which demonstrate the superiority of the proposed OPE strategy in harnessing the maximum energy from wind, in comparison to the existing method.
Language eng
DOI 10.1109/ACCESS.2018.2864600
Indigenous content off
HERDC Research category C1.1 Refereed article in a scholarly journal
ERA Research output type C Journal article
Copyright notice ©2018, IEEE
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