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

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    兩級(jí)電磁環(huán)網(wǎng)的系統(tǒng)阻抗實(shí)用計(jì)算方法

    來源:電工電氣發(fā)布時(shí)間:2016-08-01 14:01 瀏覽次數(shù):12
    兩級(jí)電磁環(huán)網(wǎng)的系統(tǒng)阻抗實(shí)用計(jì)算方法
     
    韓志錕,許文超,王震泉,俞豪君
    (中國(guó)能源建設(shè)集團(tuán)江蘇省電力設(shè)計(jì)院有限公司,江蘇 南京 211102)
     
        摘 要:研究了兩級(jí)電磁環(huán)網(wǎng)中變電站母線短路電流與系統(tǒng)阻抗的關(guān)系,提出一種實(shí)用計(jì)算方法,利用短路電流數(shù)據(jù)計(jì)算變電站的系統(tǒng)阻抗和聯(lián)系阻抗。該方法無需利用軟件進(jìn)行電網(wǎng)建模仿真,即可計(jì)算得到系統(tǒng)阻抗和聯(lián)系阻抗。研究結(jié)果表明,該計(jì)算方法快速有效,簡(jiǎn)潔實(shí)用,對(duì)解決實(shí)際工程設(shè)計(jì)問題有較好的效果。
        關(guān)鍵詞:電磁環(huán)網(wǎng);變電站;系統(tǒng)阻抗;聯(lián)系阻抗
        中圖分類號(hào):TM632     文獻(xiàn)標(biāo)識(shí)碼:B     文章編號(hào):1007-3175(2016)07-0030-04
     
    Calculation of System Impedance in Two-Level
    Electromagnetic Looped Network
     
    HAN Zhi-kun, XU Wen-chao, WANG Zhen-quan, YU Hao-jun
    (Jiangsu Power Design Institute Co., Ltd, China Energy Engineering Group, Nanjing 2111 02, China)
     
        Abstract: This paper tackled the correlation between short circuit current and system impedance of transformer substation busbar in a twolevel electromagnetic looped network. A practical method was proposed to calculate system impedance and interconnection impedance by analyzing short-circuit current data. This method was particularly targeting this problem without power network simulation by calculation software. The calculation results indicate that this method is fast, efficient, concise and practical, which has better effect for solving practical engineering design problems.
        Key words: electromagnetic looped network; transformer substation; system impedance; interconnection impedance
     
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