| 引用本文: | 和敬涵,王紫琪,张大海.基于图论及模糊评价的广域后备保护分区方法[J].电力自动化设备,2017,37(2): |
| HE Jinghan,WANG Ziqi,ZHANG Dahai.Wide-area backup protection partitioning based on graph theory and fuzzy evaluation[J].Electric Power Automation Equipment,2017,37(2): |
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| 摘要: |
| 针对广域后备保护分区原则进行论述，并综合各项指标要求进行区域划分。基于电网拓扑结构建立邻接矩阵，并根据建立的邻接矩阵最短路径搜索方法确定区域边界。以边界子站为起点，搜索确定下一中心站备选集合。结合图论搜索路径数据，采用模糊综合评价法确定中心站选址，并重复区域边界搜索过程直至区域划分完毕。该分区方法在满足故障可靠切除的前提下，有效降低了广域电网分区数目。实际系统算例验证了该分区方法的有效性。 |
| 关键词: 广域网 分区方法 继电保护 后备保护 图论 模糊综合评价法 区域集中决策 |
| DOI：10.16081/j.issn.1006-6047.2017.02.012 |
| 分类号:TM761 |
| 基金项目:国家自然科学基金资助项目(51277009) |
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| Wide-area backup protection partitioning based on graph theory and fuzzy evaluation |
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HE Jinghan, WANG Ziqi, ZHANG Dahai
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Power System Protection and Control Research Laboratory, School of Electrical Engineering, Beijing Jiaotong University, Beijing 100044, China
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| Abstract: |
| The partitioning principle of wide-area backup protection is discussed and the requirements of different indicators are comprehensively considered during the regional partitioning. The adjacency matrix is established based on the network topology and the shortest path searching is applied to determine the regional boundaries according to the adjacency matrix. With the boundary substation as the start point, the next candidate set of central station is searched and determined. Combined with the graph search path data, a fuzzy comprehensive evaluation method is used to locate the central station, which is repeated until the regional partitioning is completed. The proposed method may effectively reduce the quantity of partitioned regions while the fault can be reliably removed. Its effectiveness is demonstrated by a case study for an actual system. |
| Key words: wide-area network partitioning method relay protection backup protection graph theory fuzzy comprehensive evaluation method regional centralized decision |
