含分布式风力发电的配电网电压稳定性研究  

Study on Distribution Network Voltage Stability with Distributed Wind Power Integration

作　　者：黄宁[1] 段建东[1] 杨杉[1] 刘一朋[1] 

机构地区：[1]西安理工大学电气工程系,陕西西安710048

出　　处：《陕西电力》2012年第6期6-10,共5页Shanxi Electric Power

基　　金：国家自然科学基金项目(50707026);陕西省自然科学基础研究计划项目(SJ08E220);陕西省重点学科建设专项资金资助项目;陕西省教育厅自然科学项目(2010JK747)

摘　　要：针对风电场接入配电网后,对配电网的电压稳定性带来的影响进行了研究。首先通过对两节点线路电压的理论分析,建立用于评价电压稳定性能的指标VSI(Voltage Stability Index)。然后,考虑在风电功率波动和负荷波动的运行情况下,通过计算配电网各节点的VSI指标,分析配电网各节点的电压稳定性能。最后,在电力仿真软件DIgSILENT上搭建了IEEEl3配电网络和风电场的模型,仿真研究结果显示出VSI不仅能够正确地指示配电网各节点的电压稳定水平,而且能够判断风电功率波动、负荷波动对配网节点电压造成的影响程度。The effect of wind farm introduction upon static voltage stability of distribution network is studied. Firstly, through the theoretical analysis of transmission line voltage, a voltage stability index （VSI） is established to evaluate the wlltage stability. Then, considering the operation status with the wind power or load fluctuations, the paper analyzes the voltage stability level of each node in the distribution network through each nodes＇VSI calculation. Finally, IEEE13 distribution network and wind farm models are built in the internationally famous electric power simulation software DIgSILENT. The simulation results show that the VSI can indicate the node voltage stability level correctly. At the same time, VSI is able to judge the extent of the impact on the distribution network node voltage by the wind power or load fluctuations.

关 键 词：风力发电 配电网 静态电压稳定性 电压稳定性指标 

分 类 号：TM712[电气工程—电力系统及自动化]