分散式风电接入在不同场景下对配电网的影响

为了探究分散式风电场在不同场景下接入配电网所带来的影响，建立了考虑分散式风电接入的配电网的仿真模型，并进行对比分析。首先，在建立配电网线路基础模型的基础上，分别分析了分散式风电接入对配电网节点电压、潮流分布和网损影响的机理。然后，结合南方电网某配电网案例，研究了在不同场景下，分散式风电以不同的渗透率接入对配电网的影响规律。最后，在实验结果的基础上，分析总结了分散式风电接入对配电网影响的规律。得出了分散式风电场在配电网中不同接入位置、接入容量、接入形式下，配电网中电压和网损分布的一般规律。分散式风电场接在配电网馈线的首端、中端、末端，接入单个或多个风电场，均会对电压和网损分布造成不同的影响。因此，在实际工程中，需要合理设置接入分散式风电场的容量和位置。

Impact of Dispersed Wind Farm Integration on Distributed Network in Different Scenarios

In order to study the impact of dispersed wind farm (DWF) integration on distribution network in different scenarios, a simulation model is established for the distribution network with DWFs, and a comparative analysis is made. Firstly, based on the basic model of distribution network, the paper analyzes the impact mechanism of DWF access on node voltage, power flow distribution and network loss. Then, based on a case of a distribution network in China Southern Power Grid, the paper studies the impacts of DWF access with different penetration rates on the distribution network in different scenarios. Finally, according to the simulation results, the paper summarizes the impact of dispersed wind power access on the distribution network. The general law of voltage and network loss distribution in distribution network is obtained under different access location, access capacity and access form of DWFs. The simulation results show that different access modes of DWFs, including accessing at the head, middle and end terminals of distribution network feeder, or access of single or multiple wind farms, have different impacts on voltage and network loss distributions. It is therefore important in practice to reasonably determine the access capacity and location of DWFs.