Disturbance Tracking and Blade Load Control of Wind Turbines in Variable-Speed Operation
Keyword(s):
A composite state-space controller was developed for a multi-objective problem in the variable-speed operation of wind turbines. Disturbance Tracking Control theory was applied to the design of a torque controller to optimize energy capture under the influence of persistent wind disturbances. A limitation in the theory for common multi-state models is described, which led to the design of a complementary pitch controller. The goal of the independent blade pitch design was to minimize blade root fatigue loads. Simulation results indicate an 11% reduction in fatigue damage using the proposed controllers, compared to a conventional torque-only design. Meanwhile, energy capture is almost identical, partly because of nonlinear effects.
2003 ◽
Vol 125
(4)
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pp. 396-401
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2006 ◽
Vol 26
(3)
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pp. 70-81
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2017 ◽
Vol 4
(3)
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pp. 569-576
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