| 电力系统连锁故障的关联模型 |
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| 引用本文： | 王英英,罗毅,涂光瑜,刘沛.电力系统连锁故障的关联模型[J].电工技术学报,2012(2):204-209. |
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| 作者姓名： | 王英英 罗毅 涂光瑜 刘沛 |
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| 作者单位： | 华中科技大学电力安全与高效湖北省重点实验室 |
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| 基金项目： | 国家电网公司科研项目(SGKJJSKF[2008]469) |
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| 摘 要： | 分析了目前电力系统连锁故障模型的不足,并根据连锁故障的特征,提出了连锁故障的关联模型。该模型通过定义连锁故障环节和环节之间的关联度函数,来描述连锁故障过程中各故障元件之间的相关性,并通过分析关联度函数的影响因素,确定不同因素组合下,关联度函数的具体形式。电力系统连锁故障关联模型不仅能实时反映连锁故障环节之间的相关性,而且能快速预测连锁故障的发展方向,并提供故障过程中的影响因素分析,为连锁故障的预防和控制决策提供参考依据。最后,以IEEE 39节点系统和实际电网为例,验证了该模型对电力系统连锁故障分析的正确性和有效性。
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| 关 键 词： | 电力系统 连锁故障 关联度函数 隐性故障 潮流转移 |
Correlation Model of Cascading Failures in Power System |
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| Wang Yingying Luo Yi Tu Guangyu Liu Pei.Correlation Model of Cascading Failures in Power System[J].Transactions of China Electrotechnical Society,2012(2):204-209. |
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| Authors: | Wang Yingying Luo Yi Tu Guangyu Liu Pei |
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| Affiliation: | Wang Yingying Luo Yi Tu Guangyu Liu Pei(Electric Power Security and High Efficiency Key Lab Huazhong University of Science and Technology Wuhan 430074 China) |
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| Abstract: | The defects of present analysis models for power system cascading failures are summarized,and a correlation model is proposed according to the characteristics of cascading failures.The link of cascading failures is defined and the correlation function is constructed to describe the relationship between the links,moreover,by analyzing the various influencing factors of cascading failures,the correlation function is quantified.The proposed model is not only useful to reflect the relationship between the links of cascading failures timely,but also quick to predict the trend of cascading failures and determine the main factors and minor factors,which provide a basis for prevention and control of cascading failures.Finally,IEEE 39-bus test system and actual power system are shown that the developed correlation model is correct and efficient for cascading failures in power system. |
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| Keywords: | Power system cascading failures correlation function hidden failures flow transfer |
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