一種雙Buck全橋逆變器的研究
郭前崗，趙磊，周西峰
南京郵電大學(xué) 自動(dòng)化學(xué)院，江蘇 南京 210046
摘 要：結(jié)合傳統(tǒng)的全橋逆變和雙Buck半橋逆變器，研究了一種雙Buck全橋逆變器，分析了其工作原理及控制策略。該逆變器采用滯環(huán)電流控制方式，使其處于電流半周期工作，不僅具有雙Buck逆變器無(wú)橋臂直通、無(wú)開關(guān)器件體二極管反向恢復(fù)、可靠性高等特點(diǎn)，也克服了其輸入直流電壓利用率低的缺點(diǎn)，仿真與實(shí)驗(yàn)結(jié)果驗(yàn)證了其正確性與可靠性。
關(guān)鍵詞：雙Buck全橋；逆變器；滯環(huán)電流控制；可靠性 中圖分類號(hào)：TM464 文獻(xiàn)標(biāo)識(shí)碼：A 文章編號(hào)：1007-3175(2013)04-0017-03
Research on a Kind of Double Buck Full-Bridge Inverter
GUO Qian-gang, ZHAO Lei, ZHOU Xi-feng
College of Automation, Nanjing University of Posts and Telecommunications, Nanjing 210046, China
Abstract: Combined with traditional full-bridge inverters and double Buck half-bridge inverters, this paper developed a kind of double Buck full-bridge, analyzing its working principle and control strategy. The inverter adopted hysteretic current control method, making it in current half-cycle working state. The inverter is in possession of double Buck inverter without bridge arm direct through, diode reverse recovering without switching, high reliability etc features, in addition, overcomes its shortages of low utilization rate of input DC voltages. The simulation and experimental results have verified its correctness and reliability.
Key words: double Buck full-bridge; inverter; hysteretic current control; reliability
參考文獻(xiàn)
[1] 洪峰，單任仲，王慧貞，嚴(yán)仰光.三電平雙降壓式全橋逆變器[J].中國(guó)電機(jī)工程學(xué)報(bào)，2008，28(12)：55-59.
[2] 王贊，肖嵐，姚志壘，等.雙Buck電壓源逆變器的半周期電流調(diào)制方法[J].電工技術(shù)學(xué)報(bào)，2007，22(5)：104-110．
[3] 王寶誠(chéng)，郭小強(qiáng)，梅強(qiáng)，等.無(wú)變壓器非隔離型光伏并網(wǎng)逆變器直流注入控制技術(shù)[J].中國(guó)電機(jī)工程學(xué)報(bào)，2009，29(36)：23-28．
[4] YU Wen-song, LAI Jih-sheng, QIAN Hao, et al.High-efficiency inverter with H6-type configuration for photovoltaic non-isolated AC module applications[C]//IEEE Applied Power Electronics Conference and Exposition，2010.
[5] Das Pritam, Moschopoulos Gerry.A comparative study of zero-current-transition PWM converters
[J].IEEE Transactions on Industrial Electronics，2007，54(3)：1319-1328.
