無(wú)橋Boost PFC在UPS中的應(yīng)用研究
作者：李賀龍，俞雁飛，陳小龍 上傳時(shí)間：2012/1/3 11:45:18
摘要：不間斷電源(UPS)在生活和工業(yè)中應(yīng)用十分廣泛。傳統(tǒng)UPS電源輸入側(cè)直接接在電網(wǎng)上，輸入電流諧波含量高，網(wǎng)側(cè)輸入功率因數(shù)很低，對(duì)電網(wǎng)造成污染。該文提出在UPS的輸入側(cè)加入功率因數(shù)校正環(huán)節(jié)，通過(guò)無(wú)橋Boost PFC對(duì)網(wǎng)側(cè)電流進(jìn)行控制，使網(wǎng)側(cè)電流跟蹤電壓相位，大大提高網(wǎng)側(cè)輸入的功率因數(shù)，幾乎消除了對(duì)電網(wǎng)的諧波污染，達(dá)到清潔使用電能的目的。本文詳細(xì)分析了無(wú)橋Boost PFC電路的工作原理，通過(guò)Matlab/Simulink進(jìn)行了系統(tǒng)的仿真，并進(jìn)行了硬件實(shí)驗(yàn)，仿真和實(shí)驗(yàn)結(jié)果驗(yàn)證了提出方法的正確性和可行性。
敘詞：升壓 功率因數(shù)校正 雙閉環(huán) 不間斷電源
Abstract： Uninterrupted Power Supply(UPS) is widely used in industry and life. Traditional UPS is directly connected to the grid. The harmonic content of in-current is very high. The power factor of the grid side is quit low. So it is an pollution to the grid. This article proposes an idea that increasing the power factor correction part to the input side of the UPS. Make the grid current phase following the voltage phase through the Boost PFC of free bridge. Greatly increase the PF of the grid side and almost dismiss the harmonic pollution to the grid. Realize the purpose of clean using power. This paper detailed analyzes the principle of the PFC circuit. Make simulation of the system. The simulation and experiment results verify the correction and feasibility of the proposed method.
Keyword：Boost, PFC, Double loop, UPS
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－－本文摘自《電源世界》，已被閱讀50277次
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