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This paper presents a novel sensorless maximum power point tracking (MPPT) algorithm for the new dual power flow (DPF) wind energy conversion system (WECS) which is based on electrical variable transmission (EVT) machine. The optimum current given (OCG) MPPT strategy is proposed for the outer rotor of the EVT machine. The algorithm works in two stages: In the first stage, the relationship between...
In the widely applied non-direct-driven wind power generation system, a gearbox is connected between the wind turbine and high-speed doubly fed induction generator so that the system can supply power with constant voltage and constant frequency as the wind turbine speed varies. However, the multilevel mechanical gearbox is rather vulnerable and poses many difficulties to maintain. Electrical variable...
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