电力系统保护与控制2011，Vol.39Issue(8)：18-22,5.
一种基于支路量测的电压稳定评估指标
A voltage stability assessment index based on branch measurement
乔媛媛 1郑飞平 2杨若松 3张萌4
作者信息
- 1. 陕西榆林市供电公司,陕西,榆林,719000
- 2. 华北电力大学电气与电子工程学院,北京,102206
- 3. 湖北超高压办理变电公司,湖北宜昌443000
- 4. 湖北宜昌供电公司,湖北,宜昌,443000
- 折叠
摘要
Abstract
On the basis of PMU branch measurement, the electrical relationship among branch parameters, branch power and the voltage on two nodes of the branch is used to establish a new voltage stability index of LPQIby rational deduction. The LPQI ranges from 0 to 1, after calculation, the transmission line with maximum LPQI is considered as the weakest line and used to assess the voltage stability of the present system. The simulation values of IEEE 9-bus system and IEEE 30-bus system show the validity and accuracy on assessment of weakest line and determination of the distance between the current state and critical state, and the obtaining of the index of LPQI considers the influence of branch earth capacitance on the assessment of static voltage stability, and it needs only a simple calculation.关键词
支路量测/LPQI指标/PV曲线/电压稳定评估Key words
branch measurement/ LPQI index/ PV curve/ voltage stability assessment分类
信息技术与安全科学引用本文复制引用
乔媛媛,郑飞平,杨若松,张萌..一种基于支路量测的电压稳定评估指标[J].电力系统保护与控制,2011,39(8):18-22,5.
