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Vibration and power regulation control of a floating wind turbine with hydrostatic transmission
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Tong, Xin and Zhao, Xiaowei (2021) Vibration and power regulation control of a floating wind turbine with hydrostatic transmission. Renewable Energy, 167 . pp. 899-906. doi:10.1016/j.renene.2020.12.009
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Official URL: http://dx.doi.org/10.1016/j.renene.2020.12.009
Abstract
We design a blade pitch controller employing linear parameter-varying (LPV) synthesis techniques for a floating hydrostatic wind turbine (HWT) with a barge platform, which is based on the LIDAR (Light Detection and Ranging) preview on the wind speed. The developed control system can simultaneously reduce barge pitch motions and regulate the power in Region 3. These two functions would normally disturb each other if designed separately. The state space model is not affinely dependent on the wind speed thus the LPV controller is obtained by satisfying multiple LMIs evaluated at a set of gridded points within the wind speed range in Region 3. An anti-windup compensation scheme is then used to improve the LPV controller’s performance when the pitch undergoes saturation around the rated wind speed. The simulations based on a high-fidelity barge HWT model show that our pitch controller significantly reduces barge pitch motions, loads on blade bearings & tower, and generator power fluctuations, compared with a gain-scheduled PI pitch controller.
| Item Type: | Journal Article | ||||||||
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| Subjects: | T Technology > TA Engineering (General). Civil engineering (General) T Technology > TC Hydraulic engineering. Ocean engineering T Technology > TJ Mechanical engineering and machinery T Technology > TK Electrical engineering. Electronics Nuclear engineering |
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| Divisions: | Faculty of Science > Engineering | ||||||||
| Library of Congress Subject Headings (LCSH): | Hydrostatics, Wind turbines , Wind power , Offshore wind power plants, Offshore wind power plants -- Design and construction, Barges , Wind turbines -- Vibration, Vibration , Linear control systems, Optical radar | ||||||||
| Journal or Publication Title: | Renewable Energy | ||||||||
| Publisher: | Elsevier Ltd. | ||||||||
| ISSN: | 0960-1481 | ||||||||
| Official Date: | April 2021 | ||||||||
| Dates: |
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| Volume: | 167 | ||||||||
| Page Range: | pp. 899-906 | ||||||||
| DOI: | 10.1016/j.renene.2020.12.009 | ||||||||
| Status: | Peer Reviewed | ||||||||
| Publication Status: | Published | ||||||||
| Access rights to Published version: | Restricted or Subscription Access | ||||||||
| Copyright Holders: | ELSEVIER | ||||||||
| RIOXX Funder/Project Grant: |
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