Adaptive and robust design for PID controller based on ant system algorithm
ICNC'05 Proceedings of the First international conference on Advances in Natural Computation - Volume Part III
Ripple-free control response by using a fractional order hold device
WSEAS TRANSACTIONS on SYSTEMS
The study of multimode power control system for MW variable-speed wind turbine
WSEAS TRANSACTIONS on SYSTEMS
Systems dynamics of future urbanization and energy-related CO2 emissions in china
WSEAS TRANSACTIONS on SYSTEMS
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Recently, an increasing number of multi-MW (1MW and up) wind generation systems are being developed and variable speed-variable pitch (VS-VP) control technology is usually adopted to improve the fast response speed and obtain the optimal energy, which means to obtain the maximum power at low wind speed and the rated power at high wind speed. However, the power generated by wind turbine changes rapidly for the continuous fluctuation of wind speed and direction, and wind energy conversion systems are of strong nonlinear characteristics for many uncertain factors and external disturbances. Based on modeling and analyzing of the doubly-fed induction generator (DFIG) and the hydraulic variable pitch mechanism (HVPM), this paper presents an adaptive fuzzy proportional integral derivative (AFPID) control strategy to capture optimal power. Simulation results show that the controller can improve the wind turbine performance than conventional PID controller.