浮体式洋上風車のブレードにかかる荷重を考慮したブレードピッチ角制御器の設計および性能評価

—個別ピッチ角制御と共通ピッチ角制御の性能比較—

抄録

In this paper, we design both an individual blade pitch controller (IBP) and a collective blade pitch controller for a floating offshore wind turbine. To design IBP, we obtain a linear time-invariant system from a linear periodic system by using the Multi-Blade Coordinate transformation. We evaluate the performance of two controllers and compare them using the high-fidelity wind turbine simulator, FAST. Nonlinear simulations with a vertical windshear condition show that the individual blade pitch control has a good blade fatigue loads reduction performance with regulating generator power by reflecting each blade position.