摘要
有效辨识电网中关键线路对优化电网结构、减少电网连锁故障具有重大意义。为此,考虑电网线路隐性故障,建立了基于元胞自动机理论的电网隐性故障模型,并在此基础上提出了一种综合考虑线路两端负荷量、线路故障频率和线路邻居数量的电网关键线路辨识方法。以IEEE39节点系统为算例,识别了该节点系统的关键线路,并通过与别的方法对比验证了该模型的合理性及其电网关键线路辨识方法的有效性。该模型和方法能为电网连锁故障模型和脆弱性评估提供新的参考。
Effective identification of the key lines in a power grid plays a significant role in optimizing the structure and reducing the chain failures of power grid. Therefore, a hidden failure model based on the cellular automata theory considering line hidden failures of power grid is proposed. On this basis, a critical line identification method for power grid is proposed which comprehensively considers load capacity of double terminals, line fault frequency and neighbors of line. Taking IEEE39 node system as a numerical example, this paper identifies its critical lines and verifies the rationality and validity of the proposed model of the method by comparison with other methods. The proposed model and method can provide a new reference for power grid cascading failure model and vulnerability assessment.
出处
《电力系统保护与控制》
EI
CSCD
北大核心
2018年第6期16-23,共8页
Power System Protection and Control
基金
国家自然科学基金(51307148)
湖南省教育厅项目(16C1543)~~
关键词
电力系统
元胞自动机
隐性故障模型
复杂网络
连锁故障
power system
cellular automata
hidden failure model
complex network
cascading failure
