引用本文: | 茅逸斐,韩蓓,李国杰,等.基于网络等效的配电网快速供电恢复策略并行化实现[J].电力系统保护与控制,2018,46(11):99-108.[点击复制] |
MAO Yifei,HAN Bei,LI Guojie,et al.Parallel realization of fast restoration strategy for distribution system based on network equivalence[J].Power System Protection and Control,2018,46(11):99-108[点击复制] |
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摘要: |
现代智能配电网在故障后可以调度需求侧的“灵活源”实现快速供电恢复。针对智能配电网的特点,提出了一种基于网络等效和并行化实现的快速供电恢复策略,能够灵活地利用电网资源以应对不同的失电情况。算法将支援线路等效为电源节点(称为等效源点),采用离线等效源点预存储与实时等效源点并行计算相结合的模式:保存并优先使用离线数据;在失电负荷较大时,调取实时数据对不同的调度可能进行并行计算。为进一步提升算法的时效性,利用改进邻接矩阵记录和维护电网拓扑结构,实现网络的高效重构。通过若干个算例,验证了该供电恢复策略在面对不同程度失电时均能合理高效地运用电网的各类支援资源,实现快速供电恢复。 |
关键词: 供电恢复 智能配电网 网络等效 并行化 邻接矩阵 |
DOI:10.7667/PSPC170710 |
投稿时间:2017-05-11修订日期:2017-08-07 |
基金项目:国网浙江省电力公司科技项目(5211JY16000X) |
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Parallel realization of fast restoration strategy for distribution system based on network equivalence |
MAO Yifei,HAN Bei,LI Guojie,ZHANG Lijun,XU Chenbo,SUN Yikai |
(School of Electric Information and Electrical Engineering, Shanghai Jiao Tong University, Shanghai 200240, China;State Grid Jiangsu Economic Research Institute, Hangzhou 310000, China) |
Abstract: |
Modern intelligent distribution network can achieve rapid power recovery by dispatching its “flexible sources” of the demand side. This paper proposes a fast power restoration strategy based on network equivalence and parallelization aiming at the characteristics of intelligent distribution network which can use power network resources flexibly to cope with different electrical energy loss. The algorithm uses special power supply nodes (called equivalent sources) to replace surrounding feeders, adopts parallel computation mode of combining off-line equivalent sources pre-storage with real-time ones. The off-line data is pre-stored and preferred to use. While facing larger electrical energy loss, the algorithm calculates in parallel the real-time equivalent sources corresponding to different dispatching possibilities. In order to further improve the efficiency, the algorithm uses improved adjacency matrix to maintain the radial topology and reconstruct the network efficiently. Several cases of different electrical energy loss are studied to show that this strategy can achieve rapid power recovery by using different support sources reasonably and efficiently. This work is supported by a Science and Technology Project of State Grid Zhejiang Electric Power Company (No. 5211JY16000X). |
Key words: power restoration intelligent distribution network network equivalence parallelization adjacency matrix |