| 引用本文: | 宣晓华,周野,宋晓芳,等.基于系统与元件动态交互量化分析的电力系统连锁故障事故链识别方法[J].电力系统保护与控制,2018,46(2):101-109.[点击复制] |
| XUAN Xiaohua,ZHOU Ye,SONG Xiaofang,et al.A novel searching method of fault chains for power system cascading outages based on quantitative analysis of dynamic interaction between system and components[J].Power System Protection and Control,2018,46(2):101-109[点击复制] |
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| 摘要: |
| 针对现有的连锁故障事故链搜索方法一般只考虑线路的过负荷保护或确定性模拟保护控制的动作等不足，提出了基于系统与元件动态交互量化分析的电力系统连锁故障事故链识别方法。该方法基于事故链模型，提出关键元件保护控制动作评估指标，用于量化关键元件保护控制的动作情况。进一步根据该指标计算临界情况下关键元件保护控制的动作概率，确定连锁故障事故链的后续事件。最后，基于风险指标筛选高风险连锁故障事故链。对2017夏高峰负荷情况下的某实际电网进行仿真，结果验证了所提方法的可靠性和有效性。 |
| 关键词: 连锁故障 事故链 关键元件 保护控制 评估指标 |
| DOI：10.7667/PSPC162104 |
| 投稿时间：2016-12-26修订日期：2017-02-27 |
| 基金项目:浙江省电力公司科技项目“特高压交直流电网安全稳定特性和严重故障抵御能力研究” |
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| A novel searching method of fault chains for power system cascading outages based on quantitative analysis of dynamic interaction between system and components |
| XUAN Xiaohua,ZHOU Ye,SONG Xiaofang,WU Hongxuan,XUE Feng,DENG Hui,HUA Wen |
| (State Grid Zhejiang Electric Power Research Institute, Hangzhou 310014, China;NARI Group Corporation State Grid Electric Power Research Institute, Nanjing 211006, China;NARI Technology Co., Ltd., Nanjing 211006, China) |
| Abstract: |
| Because the traditional searching method of fault chains for cascading outages usually only consider the over-load protection or simulate the action of protection and control deterministically, a novel searching method of fault chains for power system cascading outages which is based on quantitative analysis of dynamic interaction between system and components is proposed. Based on fault chain model, an evaluating index is established. This index is used to quantize the action situation of protection and control of key elements. Furthermore, according to the index, the action probability of protection and control of key elements under critical condition is figured out to confirm subsequent events of fault chains for cascading outages. Finally, high risk fault chains are screened out based on the risk index. Taken some actual power system under the summer peak load condition in 2017 as an example, the simulation result proves reliability and effectiveness of the proposed method. This work is supported by Science and Techonology Project of Zhejiang Electric Power Company “Research on UHV AC/DC Power Grid Security and Stability Characteristics and Defense Capability for Severe Fault”. |
| Key words: cascading outages fault chains key elements protection and control evaluating index |
