計(jì)及試驗(yàn)與運(yùn)行信息的變壓器抗短路能力校核方法研究
杜瑋,文正其,方超
(國(guó)網(wǎng)電力科學(xué)研究院,湖北 武漢 430074)
摘 要: 介紹了變壓器傳統(tǒng)抗短路能力校核方法的不足,提出了一種計(jì)及試驗(yàn)與運(yùn)行信息的變壓器抗短路能力校核新方法。該方法以傳統(tǒng)的設(shè)計(jì)計(jì)算校核為基礎(chǔ),增加試驗(yàn)信息與運(yùn)行信息對(duì)設(shè)計(jì)校核結(jié)果進(jìn)行修正,實(shí)現(xiàn)變壓器抗短路能力的動(dòng)態(tài)校核。經(jīng)實(shí)際算例驗(yàn)證表明,新方法更容易發(fā)現(xiàn)系統(tǒng)薄弱環(huán)節(jié)。
關(guān)鍵詞: 抗短路能力;設(shè)計(jì)校核;短路阻抗;頻率響應(yīng);運(yùn)行參數(shù)
中圖分類號(hào):TM406 文獻(xiàn)標(biāo)識(shí)碼:B 文章編號(hào):1007-3175(2014)07-0041-04
New Method Study on Transformer Anti-Short-Circuit Capacity Checking in Consideration of Test and Operation Information
DU Wei, WEN Zheng-qi, FANG Chao
(State Grid Electric Power Research Institute, Wuhan 430074, China)
Abstract: Introduction was made to the insufficiency of traditional transformer anti-short-circuit capacity checking method. This paper raised a new method of transformer anti-short-circuit in consideration of test and operation information, which took the traditional design calculation checking as the basis, adding test and operation information to carry out amendment for design checking result, to realize dynamic checking of transformer anti-short-circuit capacity. The actual calculation examples verify that the method is easier to find system weak links.
Key words: anti-short-circuit capacities; design checking; short-circuit impedance; frequency response; operating parameter
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