| 基于节点雅可比矩阵确定弱节点排序的指标比较 |
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| 引用本文： | 徐志友,余贻鑫,曾沅. 基于节点雅可比矩阵确定弱节点排序的指标比较[J]. 天津大学学报(自然科学与工程技术版), 2008, 41(8): 889-894 |
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| 作者姓名： | 徐志友 余贻鑫 曾沅 |
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| 作者单位： | 天津大学电力系统仿真控制教育部重点实验室,天津300072 |
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| 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．
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| 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 |
Comparison of Several Indices Determining Weak Buses Ranking Based on Bus Jacobian Matrix |
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| XU Zhi-you,YU Yi-xin,ZENG Yuan. Comparison of Several Indices Determining Weak Buses Ranking Based on Bus Jacobian Matrix[J]. Journal of Tianjin University(Science and Technology), 2008, 41(8): 889-894 |
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| Authors: | XU Zhi-you YU Yi-xin ZENG Yuan |
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| Affiliation: | ( Key Laboratory of Power System Simulation and Control of Ministry of Education, Tianjin University, Tianjin 300072, China ) |
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| Abstract: | 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. |
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| Keywords: | bus Jacobian matrix weak buses ranking sensitivity minimum singular value absolute minimum eigenvalue QR factorization LDU factorization determinant |
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