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

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    基于節點電氣耦合連接度的配電網啟發式孤島劃分

    來源:電工電氣發布時間:2017-10-19 13:19 瀏覽次數:9
    基于節點電氣耦合連接度的配電網啟發式孤島劃分
     
    何樺1,李軍2,沈亞楠2,陳凡2,呂干云2,張小蓮2
    (1 南京南瑞繼保電氣有限公司,江蘇 南京 211102;2 南京工程學院 電力工程學院,江蘇 南京 211167)
     
        摘 要:分布式電源(DG) 供電能力和周圍負荷需求需要進行功率匹配,以保證故障后孤島劃分區域供電的穩定性和良好的電能質量。通過采集配電網中的量測終端數據,在研究基于單元融合法的配電網孤島劃分的基礎上,提出利用節點電氣耦合連接度指標篩選重要負荷節點,使得關鍵負荷單元能夠得到優先融合,在較短的時間內,制定出孤島劃分的最優方案。仿真數據表明計及節點電氣耦合連接度的配電網孤島劃分算法能夠較為有效地融合配電網中一些關鍵節點,使配電網故障后,能夠借助分布式電源的供電能力為非故障區域的負荷提供持續的供電服務。
        關鍵詞:配電網;單元融合法;節點電氣耦合連接度;分布式電源
        中圖分類號:TM715     文獻標識碼:A      文章編號: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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