本文關鍵詞： Buck-Boost LLC Phase-Shift 寬輸入電壓范圍　出處：《中國電機工程學報》2016年06期 　論文類型：期刊論文

【摘要】：研究一種集成Buck-Boost LLC(integrated Buck-Boost LLC,IBBLLC)變換器。該變換器適用于寬輸入電壓范圍場合的應用,通過開關管的共用變換器減少了開關管數(shù)量。通過采用PWM+Phase-Shift控制,使得原邊各個開關管在全輸入電壓和全負載范圍內(nèi)均能夠?qū)崿F(xiàn)零電壓開通(zero voltage switching,ZVS)。文中首先介紹變換器的拓撲結(jié)構(gòu)及直流增益。其次詳細分析變換器的工作模式及前級電感Lb對變換器性能的影響,為變換器參數(shù)的選取提供了理論依據(jù)。此外,研究變換器的ZVS特性,給出變換器能夠?qū)崿F(xiàn)ZVS的工作區(qū)域。最后搭建一臺200~450 V輸入、14 V/80 A輸出的實驗樣機,實驗結(jié)果驗證了理論分析的正確性及方案的可行性。
[Abstract]:An integrated Buck-Boost LLC(integrated Buck-Boost LLC converter is studied. The converter is suitable for wide input voltage range applications. It reduces the number of switch transistors by means of common converters with switch transistors. PWM Phase-Shift control is used to control the converters. In this paper, the topology structure and DC gain of the converter are introduced firstly, and the operation mode of the converter is analyzed in detail. The influence of the former inductor Lb on the performance of the converter, It provides a theoretical basis for the selection of converter parameters. In addition, the ZVS characteristics of the converter are studied, and the working area of the ZVS is given. Finally, an experimental prototype of the output of the 200V 450V input / 14V / 80A converter is built. The experimental results verify the correctness of the theoretical analysis and the feasibility of the scheme.
【作者單位】： 電力電子節(jié)能與傳動控制河北省重點實驗室(燕山大學電氣工程學院);北京航天發(fā)射技術(shù)研究所;
【基金】：國家自然科學基金項目(51407155,51077112) 河北省自然科學基金項目(E2015203407,13211907D-2)~~
【分類號】：TM46
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本文編號：1501903