| 引用本文: | 刁 塑,刘俊勇,刘友波,刘挺坚,丁理杰,BAZARGAN Masoud.考虑电网承载结构的连锁故障模拟与防御策略[J].电力自动化设备,2015,35(11): |
| DIAO Su,LIU Junyong,LIU Youbo,LIU Tingjian,DING Lijie,BAZARGAN Masoud.Cascading failure simulation and defense strategy considering grid carrying structure[J].Electric Power Automation Equipment,2015,35(11): |
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| 摘要: |
| 提出基于复杂网络和信息熵理论的电网承载结构模型，定义线路承载能力、承载系数及全网电气结构承载熵等指标，研究其与电网自组织临界性的定性关系。通过IEEE 118节点算例仿真揭示了承载结构能够实时反映电网结构与运行状态的变化情况，承载熵变化与负荷损失变化之间具有宏观关联性。在此基础上，提出同时在故障过程中优化控制和电网发展过程中规划建设的双层连锁故障防御策略，并建立加入防御策略的连锁故障仿真模型。采用某省实际电网进行连锁故障仿真，验证了所提指标的合理性，并通过对比加入防御策略前后大停电累积概率分布曲线验证了防御策略的有效性。 |
| 关键词: 复杂网络 连锁故障 承载熵 自组织临界性 防御 |
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| 基金项目:国家自然科学基金资助项目（51261130472，51207098）；四川省产业发展重大关键技术项目（2011GZ0225） |
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| Cascading failure simulation and defense strategy considering grid carrying structure |
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DIAO Su1, LIU Junyong1, LIU Youbo1, LIU Tingjian1, DING Lijie2, BAZARGAN Masoud3
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1.School of Electrical Engineering and Information，Sichuan University，Chengdu 610065，China;2.Sichuan Electric Power Research Institute，Chengdu 610072，China;3.ALSTOM Grid Research & Technology Centre，Stafford ST17 4LX，UK
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| Abstract: |
| A power grid carrying structure model based on complex network and information entropy is proposed，the indexes，such as transmission line carrying capacity，carrying coefficient and whole-grid electrical structure carrying entropy，etc.，are defined，and the qualitative relationship between it and the self-organized criticality of power grid is researched. The simulation of IEEE 118-bus system reveals that，the carrying structure can reflect the variation of grid structure and operating state，and there is macroscopic relevance between the carrying entropy variation and the load loss variation，based on which，a bi-level defense strategy against cascading failure is proposed to optimize the fault control and plan the grid development，and a cascading failure simulation model applying the defense strategy is built. A cascading failure simulation for a practical power grid verifies the rationality of the proposed indexes and the comparison of outage cumulative probabilistic distribution curve between with and without defense strategy verifies its effectiveness. |
| Key words: complex network cascading failure carrying entropy self-organized criticality defense |
