摘要
针对只对系统中某些关键负荷节点进行弱节点排序的需要,提出了衡量节点雅可比矩阵奇异的若干指标,将这些指标应用于弱节点排序并对其有效性进行了评价.算例表明除行列式指标外其他各种指标均适合于弱节点排序,而节点灵敏度指标由于其鲜明的物理意义而被推荐用于弱节点排序.
In order to meet the need of ranking some key load buses for a large-scale power system, some indices for evaluating the singularity of bus Jacobian matrix were proposed. Then the indices were applied to weak buses ranking and their validity was evaluated. The simulation shows that all the indices except the determinant index, are suitable for the weak buses ranking, and the bus sensitivity index is recommended for its strong physical meaning.
出处
《天津大学学报》
EI
CAS
CSCD
北大核心
2008年第8期889-894,共6页
Journal of Tianjin University(Science and Technology)
基金
国家自然科学基金重大项目(50595413)
关键词
节点雅可比矩阵
弱节点排序
灵敏度
最小奇异值
最小绝对特征值
QR分解
LDU分解
行列式
bus Jacobian matrix
weak buses ranking
sensitivity
minimum singular value
absolute minimum eigenvalue
QR factorization
LDU factorization
determinant
