瞬時(shí)無(wú)功理論在SVC無(wú)功功率檢測(cè)中的應(yīng)用
作者:練志峰 陳穎 黃振華 上傳時(shí)間:2007/8/14 14:41:13
摘要:傳統(tǒng)的根據(jù)無(wú)功功率的定義來(lái)計(jì)算SVC系統(tǒng)中的無(wú)功功率的方法難以滿足快速響應(yīng)要求,因此本文采用瞬時(shí)無(wú)功理論來(lái)實(shí)現(xiàn)SVC系統(tǒng)中無(wú)功功率的計(jì)算和檢測(cè)。分析了瞬時(shí)無(wú)功理論的原理,在此基礎(chǔ)上推導(dǎo)出SVC系統(tǒng)中瞬時(shí)無(wú)功功率的計(jì)算,然后采用滑動(dòng)平均窗的方法實(shí)現(xiàn)對(duì)無(wú)功功率的檢測(cè)。通過(guò)仿真實(shí)驗(yàn)實(shí)現(xiàn)SVC系統(tǒng)無(wú)功功率的計(jì)算和檢測(cè),仿真結(jié)果表明算法能快速有效地檢測(cè)SVC系統(tǒng)中無(wú)功功率,為設(shè)計(jì)SVC中無(wú)功功率的監(jiān)測(cè)和控制系統(tǒng)提供理論依據(jù)和實(shí)現(xiàn)方法。
敘詞:瞬時(shí)無(wú)功理論,靜止無(wú)功補(bǔ)償器(SVC),無(wú)功功率檢測(cè)
Abstract:The traditional methods based on definitions of reactive power can not fulfill the demand, so the paper employs the instantaneous reactive power theory to detect the reactive power in SVC system. The paper analyses the principle of instantaneous reactive power theory, and deduces the formula to calculate the instantaneous reactive power in SVC system, and employs a sliding window to calculate the average reactive power. The paper applies the new method by simulation, the results of which show that the method is efficient in detecting reactive power in SVC system and thus provides application in designing the monitor and control system of SVC.
Keyword:instantaneous reactive power, Static Var Compensator, reactive power detection
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