考虑机组功率因数的分布式风机选址定容研究

Research on Locating and sizing of Distributed Wind Generators Considering Unit Power Factor

随着以风机为主的分布式电源越来越多地并网发电,风电机组选址定容对网络网损的影响也日益凸显。本文考虑机组的最优功率因数,对分布式风机进行选址定容的优化。首先建立了网损的数学模型,得出了网络有功网损和无功网损的公式;随后分析了功率因数对机组选址定容的影响;然后说明了本文所提机组选址定容的具体方法,从确定机组位置、容量到功率因数。最后结合IEEE30节点系统进行了算例分析,说明了本文所提方法的有效性。

As more and more distributed power sources, mainly wind turbines, are connected to the grid for power generation, the impact of location and capacity of wind turbines on network losses become increasingly prominent. This paper considers the optimal power factor of the unit and optimizes the location and capacity of the distributed wind turbine. Firstly, the mathematical model of the network loss is established, and the formulas of the network active and reactive network losses are obtained. Then the influence of the power factor on the location and capacity of the unit is analyzed;then the unit location and capacity of the unit mentioned in this paper are proposed, from determining the unit location, capacity to power factor.Finally, a numerical example analysis is carried out in IEEE 30-node system, which illustrates the effectiveness of the proposed method.