| 引用本文: | 李振兴,龚旸,翁汉琍,李振华,徐艳春.考虑通信约束的区域保护分区策略及其实现技术[J].电力自动化设备,2019,39(4): |
| LI Zhenxing,GONG Yang,WENG Hanli,LI Zhenhua,XU Yanchun.Regional protection partitioning strategy considering communication constraints and its implementation technology[J].Electric Power Automation Equipment,2019,39(4): |
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| 摘要: |
| 基于区域电网多源信息的区域保护依赖于通信技术和通信基础，实现广域大电网分区域保护必须着眼于考虑通信约束的分区策略与实现。基于此目的，考虑对子站与主站通信影响最大的跳数因素，并结合分区域的均衡性，基于Floyd最短路径算法提出一种排列组合择优法的区域保护主站选取模型；进一步根据区域性保护通信时延的影响因素指标建立子站划分模型。针对分区域形成后发生N-1信道故障的情况，分析其子站通信迂回过程，考虑通信延时的影响对分区域策略进行修正。最后，基于图论技术提出了分区域策略的实现技术与方法。 |
| 关键词: 继电保护 通信 区域保护 通信约束 分区原则 图论技术 |
| DOI：10.16081/j.issn.1006-6047.2019.04.015 |
| 分类号:TM77 |
| 基金项目:国家自然科学基金资助项目(51607106)；湖北省教育厅科学技术研究计划重点项目(Z2017037) |
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| Regional protection partitioning strategy considering communication constraints and its implementation technology |
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LI Zhenxing1, GONG Yang1, WENG Hanli1, LI Zhenhua2, XU Yanchun2
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1.School of Electrical and New Energy, Three Gorges University, Yichang 443002, China;2.Key Laboratory of Operation and Control of Cascade Hydropower Stations in Hubei Province, Three Gorges University, Yichang 443002, China
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| Abstract: |
| The regional protection based on multi-source information of regional power grid depends on the communication technology and communication foundation, the implementation of regional protection of wide area power grid must be focused on the partitioning strategy and implementation considering communication constraints. Therefore, considering the number of hops between slave station and master station that has the greatest impact on the communication between slave station and master station, and combining the balance among regions, a regional protection master selection model adopting permutation and combinatorial optimization method is proposed based on Floyd shortest path algorithm. Furthermore, the slave station division model based on factors affecting the communication delay of regional protection is established. Aiming at the N-1 channel failure in the formed region, the detour process of slave station communication is analyzed, and the partitioning strategy is corrected considering the influence of communication delay. Finally, the implementation technology and method of partitioning strategy are proposed based on graph theory. |
| Key words: relay protection communication regional protection communication constraint partitioning principle graph theory |
