电力系统连锁故障的多层时序运行演化模型与应用

发布时间：2018-07-10 08:28

本文选题：连锁故障 + 大停电　；参考：《中国电机工程学报》2015年S1期

【摘要】：为研究电网大停电事故的宏观安全特征,并揭示连锁故障过程中呈现的微观脆弱环节,提出多层时序运行演化模型对连锁故障进行模拟。该模型由运行内层、时序中层及演化外层构成,较传统仿真模型在负荷时序规则、故障传播方式及电网建设等方面均具有更加合理的设置,能够较为真实地反映电网运行、发展与连锁故障的关系。采用IEEE 300节点系统和某省级实际电网作为连锁故障仿真算例,结合电网自组织临界性与负荷损失时序特性,说明所建模型揭示更加了符合实际的连锁故障宏观安全特征;同时,针对仿真结果所揭示的脆弱线路、重要无功支撑节点及故障线路同步性等电网脆弱环节,与已有方法和指标进行对比,验证了所建模型亦可用于揭示电网微观脆弱环节辨识。
[Abstract]:In order to study the macroscopic safety characteristics of power grid blackouts and reveal the micro-fragile links in the process of cascading faults, a multi-layer sequential operation evolution model is proposed to simulate cascading faults. The model is composed of running inner layer, time sequence middle layer and evolution outer layer. Compared with the traditional simulation model, it has more reasonable setting in load sequence rules, fault propagation mode and power network construction, and can reflect the operation of power grid more truly. The relationship between development and cascading faults. The IEEE 300-bus system and a provincial actual power network are used as simulation examples of cascading faults. Combined with the self-organized criticality and the time-series characteristics of load loss, it is shown that the established model reveals more realistic macroscopic safety characteristics of cascading faults. Compared with the existing methods and indexes, the proposed model can also be used to reveal the micro vulnerable link identification of the power grid, such as the vulnerable lines, the important reactive power supporting nodes and the synchronization of the fault lines, which are revealed by the simulation results.
【作者单位】：四川大学电气信息学院;布鲁内尔大学;
【基金】：国家自然科学基金项目(51207098,51437003)~~
【分类号】：TM711

【参考文献】