期刊
WIND ENERGY
卷 20, 期 10, 页码 1771-1786出版社
WILEY
DOI: 10.1002/we.2121
关键词
wind turbine control; load reduction; robust control
资金
- Xcel Energy Renewable Energy Fund [RD4-13]
- National Science Foundation [NSF-CMMI-1254129]
The increasing size of modern wind turbines also increases the structural loads caused by effects such as turbulence or asymmetries in the inflowing wind field. Consequently, the use of advanced control algorithms for active load reduction has become a relevant part of current wind turbine control systems. In this paper, an individual blade pitch control law is designed using multivariable linear parameter-varying control techniques. It reduces the structural loads both on the rotating and non-rotating parts of the turbine. Classical individual blade pitch control strategies rely on single-control loops with low bandwidth. The proposed approach makes it possible to use a higher bandwidth since it accounts for coupling at higher frequencies. A controller is designed for the utility-scale 2.5MW Liberty research turbine operated by the University of Minnesota. Stability and performance are verified using the high-fidelity nonlinear simulation and baseline controllers that were directly obtained from the manufacturer. Copyright (c) 2017 John Wiley & Sons, Ltd.
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