基于邊端協(xié)同的配電網(wǎng)單相接地故障研判方案
秦海波1,湯同峰1,杜東威2,錢彬2,嚴(yán)晗1,于宙宙2
(1 國(guó)網(wǎng)江蘇省電力有限公司淮安供電分公司,江蘇 淮安 223002;
2 江蘇深瑞匯陽能源科技有限公司,江蘇 南京 211100)
摘 要:針對(duì)常規(guī)故障指示器只能采集單相線路電氣參數(shù)而造成單相接地故障判別算法受限的問題,提出了一種基于邊緣計(jì)算 FTU 和故障指示器智能聯(lián)動(dòng)的多樣本波形識(shí)別研判方案。將傳統(tǒng) FTU 升級(jí)為邊緣計(jì)算 FTU,取消故障指示器匯集單元,將故障指示器采集單元通過無線網(wǎng)絡(luò)接入邊緣計(jì)算 FTU,并實(shí)現(xiàn)兩者之間的廣域同步。通過邊緣計(jì)算 FTU 和故障指示器的邊端協(xié)同,實(shí)現(xiàn)兩者之間故障錄波的數(shù)據(jù)融合,并借助于基于多樣本波形的綜合研判算法實(shí)現(xiàn)單相接地故障的準(zhǔn)確檢測(cè),從而實(shí)現(xiàn) 10 kV 配電網(wǎng)架空線路單相接地故障的精準(zhǔn)研判和定位。
關(guān)鍵詞:配電物聯(lián)網(wǎng);邊緣計(jì)算FTU ;故障指示器;邊端協(xié)同;多樣本波形識(shí)別法
中圖分類號(hào):TM711 ;TM727 文獻(xiàn)標(biāo)識(shí)碼:A 文章編號(hào):1007-3175(2021)10-0044-05
Research and Judgment Scheme of Single-Phase Grounding Fault in
Distribution Network Based on Edge Terminal Cooperation
QIN Hai-bo1, TANG Tong-feng1, DU Dong-wei2, QIAN Bin2, YAN Han1, YU Zhou-zhou2
(1 Huai’an Power Supply Branch, State Grid Jiangsu Electric Power Co.,Ltd, Huai’an 223002, China;
2 Jiangsu Sunri Huiyang Energy Technology Co.,Ltd, Nanjing 211100, China)
Abstract: This paper presents a multi-sample waveform recognition scheme based on the intelligent linkage of edge computing FTU and fault indicator. This scheme might solve the problem that the conventional fault indicator can only collect the electrical parameters of the single-phase line, which causes the limitation of the single-phase ground fault discrimination algorithm. This research upgraded the traditional FTU to the edge computing FTU and canceled the fault indicator collection unit. It connected the fault indicator collection unit to the edge computing FTU by using the wireless network. It realized wide-area synchronization between them.This work realized the data fusion of the fault recorder between both of them with the cooperation of edge computing FTU and fault indicator’s edge terminal. This research achieved detection accuracy by using a comprehensive research algorithm. The single-phase ground faults on overhead lines of a 10 kV distribution network could be diagnosed and located.
Key words: Distribution Internet of Things (D-IoT); edge computing FTU; fault indicator; edge terminal cooperation; multiple waveform recognition method
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