The study of adaptive independence electrical drive blade pitch control technology

In this paper, the structure of the MW level wind turbine electric drive regulating pitch-system and its working principle are analyzed in-deeply, and the mathematical model of PMSM based on the rotor magnetic field orientation control is set up, according to the model reference adaptive control (MRAC) principle, the high-performance electric drive regulating pitch control servo system is put up, and the design rules of the model reference adaptive control based on the Lyapunov stability theory are discussed , then the model reference adaptive servo system performance is simulating and analyzed, the simulation results show the model reference adaptive control strategy has good anti-jamming performance and accurate positioning of the servo performance.