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:2020,29(2):151-156
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基于聚类的电网暂态稳定裕度估算方法
(南瑞集团有限公司, 南京 211106)
Estimating Method for Transient Stability Margin of Power Grid Based on Clustering
(NARI Group Corporation, Nanjing 211106, China)
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Received:June 18, 2019    Revised:July 16, 2019
中文摘要: 本文融合了传统的因果分析方法和数据核心思维方法,提出一种基于因果分析结果构建样本库,基于聚类进行稳定裕度快速估算的方法.首先从海量的历史量化分析或模拟仿真计算结果中,按故障提取暂态稳定模式,将所有故障的稳定模式取并集作为关键特征量.其次对各故障按特征量进行方式聚类,生成电网安全运行知识库.最后基于知识库对当前方式下多重故障进行自动匹配和稳定裕度快速估算.该方法提升分析计算的速度,为电网安全稳定快速决策提供依据,为电力系统暂态稳定分析评估提供了新思路.
Abstract:In this study, a method of fast estimation of stability margin based on clustering is proposed integrating the traditional causal analysis method and data core thinking method. Firstly, from the massive historical quantitative analysis or simulation calculation results, the transient stable mode is extracted according to faults, and the stable mode of all faults is taken as the key characteristic quantity. Secondly, each fault is clustered according to characteristic quantity to generate safe operation knowledge base. Finally, based on the knowledge base, each fault in the current mode is automatically matched and the stability margin is quickly estimated. This method improves the speed of analysis and calculation, provides a basis for the rapid decision-making of power network security and stability, and provides a new idea for the analysis and evaluation of power system transient stability.
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基金项目:国家电网公司总部科技项目(524608180067)
引用文本:
邵伟,徐泰山,王胜明,郭剑.基于聚类的电网暂态稳定裕度估算方法.计算机系统应用,2020,29(2):151-156
SHAO Wei,XU Tai-Shan,WANG Sheng-Ming,GUO Jian.Estimating Method for Transient Stability Margin of Power Grid Based on Clustering.COMPUTER SYSTEMS APPLICATIONS,2020,29(2):151-156