1.长沙理工大学 防灾减灾全国重点实验室,长沙 410114
2.国网;湖南省电力有限公司经济技术研究院, 长沙 410004
黄子书(2001),男,硕士生,从事电力系统安全稳定分析与韧性提升方面的研究,643783077@qq.com;
蔡晔*(1988),女,副教授,博士,从事电力系统运行与控制、电力市场方面的研究,caiye1988427@126.com;
孙溶佐(1998),男,博士生,从事电力系统安全稳定分析与韧性提升方面的研究,1574259113@qq.com。
收稿:2024-12-05,
修回:2025-01-15,
网络出版:2025-03-27,
纸质出版:2025-09-25
移动端阅览
黄子书,蔡晔,孙溶佐等.电力系统高危N-k故障的高危断面辨识与保护配置[J].综合智慧能源,2025,47(09):1-9.
HUANG Zishu,CAI Ye,SUN Rongzuo,et al.Critical section identification and protection configuration for high-risk N-k faults in power systems[J].BLASTING,2025,47(09):1-9.
黄子书,蔡晔,孙溶佐等.电力系统高危N-k故障的高危断面辨识与保护配置[J].综合智慧能源,2025,47(09):1-9. DOI: 10.3969/j.issn.2097-0706.2025.09.001.
HUANG Zishu,CAI Ye,SUN Rongzuo,et al.Critical section identification and protection configuration for high-risk N-k faults in power systems[J].BLASTING,2025,47(09):1-9. DOI: 10.3969/j.issn.2097-0706.2025.09.001.
针对电力系统
N-k
连锁故障源发场景多样、故障传播路径复杂、保护策略实施对象难以界定等问题,提出一种结合极限梯度提升(XGBoost)与贝叶斯超参数优化的高危断面辨识与保护配置模型。通过搭建高危
N-k
故障集,随机模拟0.1~10.0负载率下的连锁故障,构建以线路负载率为输入、剩余负荷为输出目标的连锁故障数据集;使用贝叶斯优化算法调整XGBoost模型超参数,选择最优参数组合;辨识高危
N-k
故障场景下的保护资源配置策略。在IEEE 39节点系统上的仿真结果表明,对高危
N-k
故障集中88%的场景,通过调整高危断面3条线路的潮流承载能力,系统剩余负荷可维持在80%以上。
To address issues such as diverse
N-k
cascading fault scenarios, complex fault propagation paths, and difficulties in determining protection strategy implementation targets, a critical section identification and protection configuration model that integrates XGBoost with Bayesian hyperparam
eter optimization is proposed in power systems. By constructing a high-risk
N-k
fault set and randomly simulating cascading faults under load rates ranging from 0.1~10.0, a cascading fault dataset was developed using line load rates as inputs and residual load as the target. The Bayesian optimization algorithm was used to fine-tune the hyperparameters of the XGBoost model, selecting the optimal parameter combination. The protection resource allocation strategies for high-risk
N-k
fault scenarios were then identified. Simulation results on the IEEE 39-bus system showed that for 88% of high-risk
N-k
fault scenarios, adjusting the power flow carrying capacity of three critical section lines enabled the system's residual load to remain above 80%.
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