Optimal multivariable control of a wind turbine with variable speed

摘要: The control system design for a 310 kW horizontal axis wind energy conversion with synchronous generator and DC link is investigated. Because the turbine has multiple inputs (pitch angle, field vollage alld delay angle), outputs, (speed power), because requirements conflict, linear quadratic optimal method/or mullivariable systems used. Two proportional-integral controllers are applied to delailed non-linear dynamic model. With simulations it shown that, even when large gust occurs, speed power fluctuations very small. an eigenvalue analysis that torsional oscillations in shaft well damped.