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| 电力系统电压安全灵敏度的分析方法研究 | |
| 引用本文： | 张爽,沈晓宇,刘楠楠.电力系统电压安全灵敏度的分析方法研究[J].广东电力,2012,25(3):36-39. |
| 作者姓名： | 张爽 沈晓宇 刘楠楠 |
| 作者单位： | 1. 广东省电力设计研究院,广东广州,510663 2. 东北电力大学自动化工程学院,吉林吉林,132012 3. 内蒙古大塘国际托克托,内蒙古呼和浩特,010206 |
| 摘 要： | 针对目前的电力系统薄弱节点识别方法普遍存在难以适应互联大电网电压稳定计算和分析的问题,提出一种基于当前状态下的电压安全灵敏度分析方法。利用雅可比矩阵数学模型建立了评价节点薄弱程度的指标,对补偿前后的节点系统电压偏移量进行比较分析,依据薄弱节点的排序来确定系统的无功补偿方案。以IEEE14节点系统为例进行电压安全灵敏度计算分析,结果表明,所提出的薄弱节点指标能有效提取系统的薄弱节点,在薄弱节点进行无功补偿时系统电压幅值提高最大。 |
| 关 键 词： | 电压稳定 无功补偿 薄弱节点排序 电压偏移 |
Study on Analysis Approach for Sensitivity of Voltage Security in Power System |
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| ZHANG Shuang , SHEN Xiaoyu , LIU Nannan.Study on Analysis Approach for Sensitivity of Voltage Security in Power System[J].Guangdong Electric Power,2012,25(3):36-39. | |
| Authors: | ZHANG Shuang SHEN Xiaoyu LIU Nannan |
| Affiliation: | 1.Guangdong Electric Power Design Institute,Guangzhou,Guangdong 510663,China;2.School of Automation Engineering,Northeast Dianli University,Jilin,Jilin 132012,China;3.China Inner Mongolia Datang International Tuoketuo Power Generation Co.,Hohehot,Inner Mongolia 010206,China) |
| Abstract: | Aiming at recognition method for weak buses in power system can scarcely be used for calculation and analysis of voltage stability,the paper proposes an analysis approach for sensitivity of voltage security on the basis of current status.Mathematic model of Jacobian matrix is employed to establish index for assessment of bus weakness,voltage offsets before and after the compensation are comparatively analyzed and reactive compensation scheme in accordance to sequence of weak buses is made.IEEE 14 node system is taken as an example for calculation analysis and the result shows that the index of weak bus can pick up the weak buses and system voltage amplitude is unprecedentedly raised during reactive compensation at weak buses. |
| Keywords: | voltage stability reactive compensation sequence of weak buses voltage offset |
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