Suzhou Electric Appliance Research Institute
期刊号: CN32-1800/TM| ISSN1007-3175

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基于节点电气耦合连接度的配电网启发式孤岛划分

来源:电工电气发布时间:2017-10-19 13:19 浏览次数:9
基于节点电气耦合连接度的配电网启发式孤岛划分
 
何桦1,李军2,沈亚楠2,陈凡2,吕干云2,张小莲2
(1 南京南瑞继保电气有限公司,江苏 南京 211102;2 南京工程学院 电力工程学院,江苏 南京 211167)
 
    摘 要:分布式电源(DG) 供电能力和周围负荷需求需要进行功率匹配,以保证故障后孤岛划分区域供电的稳定性和良好的电能质量。通过采集配电网中的量测终端数据,在研究基于单元融合法的配电网孤岛划分的基础上,提出利用节点电气耦合连接度指标筛选重要负荷节点,使得关键负荷单元能够得到优先融合,在较短的时间内,制定出孤岛划分的最优方案。仿真数据表明计及节点电气耦合连接度的配电网孤岛划分算法能够较为有效地融合配电网中一些关键节点,使配电网故障后,能够借助分布式电源的供电能力为非故障区域的负荷提供持续的供电服务。
    关键词:配电网;单元融合法;节点电气耦合连接度;分布式电源
    中图分类号:TM715     文献标识码:A      文章编号:1007-3175(2017)10-0007-05
 
Heuristic Method Island Partition of Distribution Network Based on Node Electrical Coupling Connectivity
 
HE Hua1, LI Jun2, SHEN Ya-nan2, CHEN Fan2, LV Gan-yun2, ZHANG Xiao-lian2
(1 Nari-Relays Electric Co., Ltd, Nanjing 2111 02, China;
2 School of Electric Power Engineering, Nanjing Institute of Technology, Nanjing 21116 7, China)
 
    Abstract: The power supply capacity of distributed generation has to carry out power matching with the periphery load requirements to ensure the stability of power supply in island partition and the good power quality after faults. Via the acquisition of the measurement terminal data in distribution network and on the basis of research on the island partition of distribution network of units merging algorithm, this paper proposed to carry out the important load nodes index selection with the consideration of node electrical coupling connectivity to make the key load units get priority merging, so as to obtain the optimal island partition scheme in a relatively short period of time. The simulation data shows that the island partition algorithm in distribution network based on node electrical coupling connectivity could effectively merge some key nodes in distribution network, which could provide continuous power supply services for the loads in non-fault regions with the help of distributed generation after the power system failures.
    Key words: distribution network; units merging algorithm; node electrical coupling connectivity; distributed generation
 
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