电力建设2024，Vol.45Issue(5)：1-8,8.DOI:10.12204/j.issn.1000-7229.2024.05.001
极端事件下电力-天然气耦合系统故障连锁传播仿真分析
Simulation Analysis of Fault Cascading Propagation in Power-Gas Coupling System During Extreme Events
摘要
Abstract
The continuous advancements in energy transformation has led to a tight coupling between power and natural gas systems,enabled by gas-fired units and electricity-driven gas facilities.In the face of unconventional disasters,bidirectional coupling between these systems may cause faults to propagate across the energy system,thereby exacerbating blackout crises.A notable example occurred in February 2021,when Texas,United States,experienced a chain failure between its power and natural gas systems due to extremely cold weather,resulting in significant losses and adverse social impacts.This study begins by analyzing the root causes of large-scale blackout events in Texas from the perspective of power-gas coupling.Subsequently,a power-gas coupling system is constructed,and an event-triggered information interaction mode is employed to examine the fault propagation process of the power-gas coupling system during extreme events through co-simulation.Finally,a fault-blocking strategy is proposed,with the simulation analysis demonstrating that this approach effectively suppresses fault propagation and enhances system defense.关键词
电力系统/天然气系统/故障传播/故障阻断Key words
power system/natural gas system/fault propagation/fault blocking分类
信息技术与安全科学引用本文复制引用
杜洋,刘家妤,郭灵瑜,张宸赓,许寅,王颖..极端事件下电力-天然气耦合系统故障连锁传播仿真分析[J].电力建设,2024,45(5):1-8,8.基金项目
This work is supported by National Natural Science Foundation of China(No.52277072). 国家自然科学基金项目(52277072) （No.52277072）
国网上海市电力公司科技项目(52094022000B) （52094022000B）
