Coordinated power dispatch of a PMSG based wind farm for output power maximizing considering the wake effect and losses

The energy loss in a wind farm (WF) caused by wake interaction between wind turbines (WTs) is quite high, which can be reduced by proper active power dispatch. The electrical loss inside a WF by improper active power and reactive power dispatch is also considerable. In this paper, a coordinated active power and reactive power dispatch strategy is proposed for a Permanent magnet synchronous generator (PMSG) based WF, in order to maximize the total output power by reducing the wake effect and losses inside the devices of the WF, including the copper loss and iron loss of PMSGs, losses inside converters and transformers of WTs and the losses along the transmission cables. The active power reference and reactive power reference of each WT are chosen as the optimization variables and a partial swarm optimizing (PSO) algorithm is used for solving the problem. The proposed strategy is compared with traditional strategies in a designed WF. Simulation results show the effectiveness of the proposed strategy.

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