含双馈风电场的电网节点脆弱性评估

王兰; 李华强; 陈卓; 许海青

王兰,李华强,陈卓,许海青.含双馈风电场的电网节点脆弱性评估[J].电测与仪表,2015,52(18):.
WANG Lan,LI Hua-qiang,CHEN Zhuo,XU Hai-qing.Vulnerable Node Assessment of Power System With Double-fed Wind Farms[J].Electrical Measurement & Instrumentation,2015,52(18):.

含双馈风电场的电网节点脆弱性评估

Vulnerable Node Assessment of Power System With Double-fed Wind Farms

DOI：

中文关键词: 风电并网双馈发电机连续脆弱性脆弱节点综合脆弱性评估

英文关键词:wind power doubly-fed generator continuous vulnerability assessment fragile node integrated vulnerability assessment

基金项目:

作者中文名	作者英文名	单位
王兰	WANG Lan	四川大学电气信息学院
李华强	LI Hua-qiang	四川大学电气信息学院
陈卓	CHEN Zhuo	四川大学电气信息学院
许海青	XU Hai-qing	四川大学电气信息学院

摘要点击次数: 1550

中文摘要:

随着风力发电的大力发展,风电出力的随机性、波动性以及其吸收无功的特点,使得风电并网后成为电网的一个扰动源,进一步对系统的脆弱性产生影响。文中结合静态能量函数模型和电气介数,提出一种能够反映节点的状态脆性和结构脆弱性的综合评估指标,同时将离散指标连续化,得到随时间变化而变化的综合评估指标。通过搭建含双馈风电场的电网模型进行仿真计算,得到随综合风速变化的节点综合评估指标的连续变化曲线,比较了不同接入点情况下的系统节点脆弱性的变化,并对结果进行分析。

英文摘要:

With the development of wind power, it has the characteristics of stochastic volatility and absorbing reactive power on grid, so the wind power become a disturbances source of power grid, and further impact on the vulnerability of the system. This paper combined static energy function model with electrical betweenness and proposed a new set of comprehensive assessment indicators which reflect both the state of a node of vulnerability and fragility of the structure. At the same time, made discrete indicators serialization; got a set of comprehensive assessment indicator that changes with time. By building grid model with double-fed wind farm and simulating, this paper got a continuous curve that comprehensive assessment indicators changes with integrated wind, and compared different access points the changes in the vulnerability of the system nodes, and the results were analyzed.

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