基于电网结构和物理过程的脆弱性评估新模型

本文结合电网稳定运行时的结构脆弱性和受到袭击时的线路容量变化率,建立了电网线路的脆弱性评估模型.该模型综合了电网结构脆弱性的评估方法和电网受到袭击时物理过程的分析方法,克服了传统模型的不足,更加全面地分析了电网故障,得出更加精确的分析结果,为电网脆弱性评估和电网运行维护提供了重要依据.最后,通过算例仿真验证了该模型的正确性和有效性.

A new integrative vulnerability evaluation model for power grid based on the structure and the physical process of power grid

In this paper,a new integrative vulnerability evaluation model for the grid lines is presented based on both the structure vulnerability when the grid runs stably and the change rate of line capacity when the grid is attacked.The model integrates the evaluation methods of the structure and the physical process of power grid when the grid is attacked.And the model supplements the deficiency of the tradi-tional model and analyzes the fault of power grid more comprehensively.Therefore,the more accurate da-ta,providing an important basis for power grid vulnerability evaluation,operation and maintenance,can be obtained.Finally a simulation illustrates the correctness and effectiveness of the model.