Research on modeling of wind power system in all condition and predictive control based on MLD

Wind power generation unit is an electro-hydraulic integration complex equipment, which consists of the mechanical, electrical and hydraulic servo mechanism, with nonlinear, strong coupling characteristic; Random wind makes the wind power unit show some characters such as randomness, hybrid and so on. This paper proposed that using mixed logical dynamic (MLD) modeling method, make WECS system maintaining stop in the cut-on, cut-out situation, optimization power capture when partial load, and full load condition of variable pitch and variable speed constant frequency power and torque control all condition mixed logical dynamic system modeling; By using multi-parameter predictive controller (MPT) to realize the predictive control of whole condition. The experimental results show that based on MLD of wind power system model can correctly reflect the dynamic of whole condition system, at the same time MPT controller can control the system effectively.