An Optimal Reactive Power Dispatch Strategy for Interior-point Method Based Wind Farms

A new reactive power dispatch strategy of doubly fed induction generator(DFIG)based wind farms in order to minimize the total loss of wind farms was proposed. And the influence of reactive power dispatch methods inside a wind turbine to the loss of the energy conversion system, and proposes a new wind turbine reactive power control method were also considered. The optimization problems are constrained by reactive power limit of wind turbines, voltage and angle limit of buses, and the balance of power flows. Interior-point method is used to solve these optimization problems. Based on the explicitly designed study cases, the proposed method is simulated. The results showed the effectiveness of the method. After the analysis of the results, the pattern of the optimal reactive power dispatch for loss minimization is discovered. © 2017, Editorial Board of Acta Energiae Solaris Sinica. All right reserved.