中国电机工程学报Issue(28)：101-105,5.
不需雅可比左特征向量的负荷裕度灵敏度新算法
A Novel Algorithm for System Load Margin Sensitivity Without the Left Eigenvector
吴政球 1钟浩 2陈辉华3
作者信息
- 1. 湖南大学电气与信息工程学院，湖南省 长沙市 410082
- 2. 三峡大学电气与新能源学院，湖北省 宜昌市 443002
- 3. 湖南电力公司，湖南省 长沙市 410007
- 折叠
摘要
Abstract
The system load margin sensitivity with respect to any control parameter is very important to the system security analysis and control. Currently, the load margin sensitivity calculation is mainly based on the left vector of the zero eigenvalue of the Jacobean matrix at the saddle node bifurcation (SNB). However the method requires the solution of 2(n−1) linear equations. If the control variables are not too many, the calculation efficiency is very low. A method to calculate the load margin sensitivity without the left vector was proposed in this paper. At the last step of searching SNB by sensitivity guidance approach, using the local curve fitting technique and the related higher order sensitivity of the weak bus voltage, the system load margin sensitivity was obtained. Case studies for IEEE systems and Hunan system indicate that the proposed method is effective and feasible.关键词
电力系统/电压稳定/鞍结分岔/局部曲线拟合/负荷裕度灵敏度Key words
power systems/voltage stability/saddle node bifurcation/local curve fitting/load margin sensitivity分类
信息技术与安全科学引用本文复制引用
吴政球,钟浩,陈辉华..不需雅可比左特征向量的负荷裕度灵敏度新算法[J].中国电机工程学报,2013,(28):101-105,5.
