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

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    基于神經(jīng)網(wǎng)絡(luò)的并網(wǎng)光伏電站自適應(yīng)距離保護

    來源:電工電氣發(fā)布時間:2020-04-20 13:20 瀏覽次數(shù):1019
    基于神經(jīng)網(wǎng)絡(luò)的并網(wǎng)光伏電站自適應(yīng)距離保護
     
    薛風(fēng)華1,徐微微1,王洪寅1,龐吉年1,祁言嘉2,王寶華2
    (1 國網(wǎng)江蘇省電力有限公司宿遷供電分公司,江蘇 宿遷 223800;2 南京理工大學(xué) 自動化學(xué)院,江蘇 南京 210094)
     
        摘 要:光伏電站并入配電網(wǎng)后,原先配電網(wǎng)的距離保護動作特性發(fā)生變化,其分支系數(shù)隨著光伏電站的出力變化而變化,給含有分布式電源的配電網(wǎng)保護整定計算帶來困難。針對某實際光伏電站結(jié)構(gòu),分析了光伏電站并網(wǎng)后作為分布式電源對配電網(wǎng)距離保護的影響,利用BP神經(jīng)網(wǎng)絡(luò)建立光伏電站的等效阻抗模型,通過BP神經(jīng)網(wǎng)絡(luò)建立其輸出功率與等效阻抗的關(guān)系,并以此得到自適應(yīng)距離保護的整定方法,實例驗證了該方法的正確性與實用性。
        關(guān)鍵詞:光伏發(fā)電;配電網(wǎng);分支系數(shù);距離保護;神經(jīng)網(wǎng)絡(luò)
        中圖分類號:TM615     文獻標(biāo)識碼:A     文章編號:1007-3175(2020)04-0025-05
     
    Adaptive Distance Protection of Grid-Connected Photovoltaic Power Plant Based on Neural Network
     
    XUE Feng-hua1, XU Wei-wei1, WANG Hong-yin1, PANG Ji-nian1, QI Yan-jia2, WANG Bao-hua2
    (1 Suqian Power Supply Branch of State Grid Jiangsu Electric Power Co., Ltd, Suqian 223800, China;
    2 School of Automation, Nanjing University of Science and Technology, Nanjing 210094, China)
     
        Abstract: The distance protection action characteristics of the original distribution network will change after the photovoltaic power station is integrated into the distribution network, and its branching coefficient will change with the output of the photovoltaic power station, which makes it difficult to calculate the distribution protection of distributed power grids. Aiming at the structure of certain actual photovoltaic power station, this paper analyzed the impacts of distributed generation on the distribution network distance protection, used BP neural network to establish the equivalent impedance model in photovoltaic power station and the relationship between the output power and the equivalent impedanceby BP neural network, and obtained the tuning method of adaptive distance protection on this account. The correctness and practicability of this method are verified by an example.
        Key words: photovoltaic power generation; distribution network; branching coefficient; distance protection; neural network
     
    參考文獻
    [1] 王江海,邰能靈,宋凱,等. 考慮繼電保護動作的分布式電源在配電網(wǎng)中的準(zhǔn)入容量研究[J]. 中國電機工程學(xué)報,2010,30(22):37-43.
    [2] 辛培裕. 太陽能發(fā)電技術(shù)的綜合評價及應(yīng)用前景研究[D]. 北京:華北電力大學(xué),2015.
    [3] 李春來,王晶,楊立濱. 典型并網(wǎng)光伏電站的等值建模研究及應(yīng)用[J]. 電力建設(shè),2015,36(8):114-121.
    [4] 閆煒陽. 含分布式電源的配電網(wǎng)保護配置與整定研究[D]. 北京:華北電力大學(xué),2015.
    [5] 馮愛成,王寶華,單馨. 含光伏電源配電網(wǎng)的自適應(yīng)距離保護[J]. 電力系統(tǒng)保護與控制,2018,46(16):141-147.
    [6] 吳昊, 許躍進, 殷德聰, 等. 含分布式電源配電網(wǎng)規(guī)劃的研究現(xiàn)狀及發(fā)展趨勢[J]. 電工電氣,2013(7):1-4.
    [7] 趙月靈,李華忠,孫鳴. 分布式電源接入對變電站距離保護及重合閘的影響[J]. 電力系統(tǒng)保護與控制,2010,38(20):217-219.
    [8] 張堯,晁勤,王厚軍,等. 基于自適應(yīng)分支系數(shù)的并網(wǎng)光伏電站接地距離保護[J]. 電力自動化設(shè)備,2015,35(9):113-117.
    [9] 賀家李,李永麗,董新洲,等. 電力系統(tǒng)繼電保護原理[M]. 北京:中國電力出版社,2010.
    [10] 翟學(xué), 林濤, 吳俊鵬, 等. 含光伏電站的電網(wǎng)自適應(yīng)接地距離保護研究[J]. 中國電力,2016,49(2):78-83.
    [11] 朱延楓,王巍,佟紹成. BP神經(jīng)網(wǎng)絡(luò)在三相橋式全控整流電路故障診斷中的應(yīng)用[J]. 電工電氣,2010(3):42-45.
    [12] 吳雪蓮,都洪基. 基于BP神經(jīng)網(wǎng)絡(luò)-馬爾科夫鏈的光伏發(fā)電預(yù)測[J]. 電工電氣,2014(3):22-27.

     

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