一种新型软开关半桥变换器的设计与研究
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摘要
提高直流能馈电子负载的直流升压电路的电压增益,对提高能馈电子负载的工作特性具有理论意义和实用价值。提出了一种零电压开关有源箝位电流馈电半桥隔离倍压整流升压变换器。该变换器初级侧箝位开关共用一个箝位电容器,减少了电路元件;次级侧采用倍压二极管整流器,进一步提升了电压增益。该变换器通过DSP TMS320F28035控制开关管的占空比,使整个负载范围内所有开关管实现了零电压开通并实现了恒流输入。运行实验样机,得到的输出电压为79.5 V,电压增益为16,验证了变换器具有提高电压增益的功能。
Increasing the voltage gain of the Direct Current(DC) boost circuit of the DC energy-fed electronic load has theoretical and practical value for improving the working characteristics of the energy-feeding electronic load. This paper presents a zero-voltage switching active clamp current-fed half-bridge isolated voltage doubling step-up converter. The primary side clamp switch of the converter shares a clamp capacitor, which reduces the circuit components; the secondary side uses a voltage doubling diode rectifier to further increase the voltage gain. The converter controls the duty cycle of the switching tube through the DSP TMS320 F28035, so that all switching tubes in the entire load range realize zero voltage turn-on and realize constant current input. Running the experimental prototype, the output voltage is 79.5 V and the voltage gain is 16, which verifies that the converter has the function of increasing the voltage gain.
Increasing the voltage gain of the Direct Current(DC) boost circuit of the DC energy-fed electronic load has theoretical and practical value for improving the working characteristics of the energy-feeding electronic load. This paper presents a zero-voltage switching active clamp current-fed half-bridge isolated voltage doubling step-up converter. The primary side clamp switch of the converter shares a clamp capacitor, which reduces the circuit components; the secondary side uses a voltage doubling diode rectifier to further increase the voltage gain. The converter controls the duty cycle of the switching tube through the DSP TMS320 F28035, so that all switching tubes in the entire load range realize zero voltage turn-on and realize constant current input. Running the experimental prototype, the output voltage is 79.5 V and the voltage gain is 16, which verifies that the converter has the function of increasing the voltage gain.
引文
[1] 李波,张文涛,张大为.基于dsp和labview的能量回馈电子负载的研究[J].国外电子测量技术,2013,32(11):41-44,48.
[2] 庞莉.大功率高频开关电镀电源的研究[J].科技创新与应用,2017(31):185-187.
[3] 杜贵平,高频开关电镀电源及其关键问题探讨[J].电气应用,2005,24(9):1-6.
[4] 胡彩莉,黄姣娜.直流电子负载的系统快速校准[J].中国测试,2010,36 (3):47-48,80.
[5] 刘帅,韦莉,张逸成,等.耦合电感式新型交错Boost软开关变换器研究[J].电子测量与仪器学报,2014,28(12):1340-1347.
[6] 鲍志云,付明,王明彦,等.高效高功率密度非隔离升压变换器[J].电源学报,2012,10(3):56-60.
[7] 肖文英,戴日光.宽输入高增益隔离升压型DC/DC变换器[J].电源技术,2012,36(8):1147-1151.
[8] YILMAZ M,KREIN P T.Review of batte-ry charge topologies,charging power levels,an-d infrastructure for plug-in electric and hybrid vehicles[J].IEEE Transactions on Power Electr-onics,2013,28(5):2151-2169.
[9] SONG W,LEHMAN B.Current-fed dual-bridge dc-dc converter[J].IEEE Transactions on Power Electronics,2007,22 (2):461-469.
[10] YUAN Y S,WU Q F.One zero-voltage-switching three-transistor push-pull converter[J].IET Power Electron,2013,6(7):1270-1278.
[11] WOLFS P J.A current-sourced dc-dc converter derived via the duality principle from the half-bridge converter[J].IEEE Transactions on Industrial Electronics,1993,40(1):139-144.
[12] RATHORE A K,LI X D.Comparison of zero-voltage-switching current-fed full-bridge and half-bridge isolated dc/dc converters with active-clamp[C].2011 IEEE Ninth International Conference on Power Electronics and Drive Systems,2011:133-138.
[13] RATHORE A K,PRASANNA U R.Novel snubberless bidirectional zcs/zvs current-fed half-bridge isolated dc/dc converter for fuel cell vehicles[C].Annual Conference of the IEEE Industrial Electronics Society,2011:3033-3038.
[14] HAN S K,YOON H K,MOON G W,et al.A new active clamping zero-voltage switching PWM current-fed half-bridge converter[J].IEEE Transactions on Power Electronics,2005,20(6):1271-1279.
[15] TESTON S A,CARATI E G,COSTA J P D,et al.Comparison of two connection possibilities of the clamp capacitor in the Active-Clamped ZVS current-fed half-bridge converter[C].2015 IEEE 13th Brazilian Power Electronics Conference and 1st Southern Power Electronics Conference,2015:1-6.
[2] 庞莉.大功率高频开关电镀电源的研究[J].科技创新与应用,2017(31):185-187.
[3] 杜贵平,高频开关电镀电源及其关键问题探讨[J].电气应用,2005,24(9):1-6.
[4] 胡彩莉,黄姣娜.直流电子负载的系统快速校准[J].中国测试,2010,36 (3):47-48,80.
[5] 刘帅,韦莉,张逸成,等.耦合电感式新型交错Boost软开关变换器研究[J].电子测量与仪器学报,2014,28(12):1340-1347.
[6] 鲍志云,付明,王明彦,等.高效高功率密度非隔离升压变换器[J].电源学报,2012,10(3):56-60.
[7] 肖文英,戴日光.宽输入高增益隔离升压型DC/DC变换器[J].电源技术,2012,36(8):1147-1151.
[8] YILMAZ M,KREIN P T.Review of batte-ry charge topologies,charging power levels,an-d infrastructure for plug-in electric and hybrid vehicles[J].IEEE Transactions on Power Electr-onics,2013,28(5):2151-2169.
[9] SONG W,LEHMAN B.Current-fed dual-bridge dc-dc converter[J].IEEE Transactions on Power Electronics,2007,22 (2):461-469.
[10] YUAN Y S,WU Q F.One zero-voltage-switching three-transistor push-pull converter[J].IET Power Electron,2013,6(7):1270-1278.
[11] WOLFS P J.A current-sourced dc-dc converter derived via the duality principle from the half-bridge converter[J].IEEE Transactions on Industrial Electronics,1993,40(1):139-144.
[12] RATHORE A K,LI X D.Comparison of zero-voltage-switching current-fed full-bridge and half-bridge isolated dc/dc converters with active-clamp[C].2011 IEEE Ninth International Conference on Power Electronics and Drive Systems,2011:133-138.
[13] RATHORE A K,PRASANNA U R.Novel snubberless bidirectional zcs/zvs current-fed half-bridge isolated dc/dc converter for fuel cell vehicles[C].Annual Conference of the IEEE Industrial Electronics Society,2011:3033-3038.
[14] HAN S K,YOON H K,MOON G W,et al.A new active clamping zero-voltage switching PWM current-fed half-bridge converter[J].IEEE Transactions on Power Electronics,2005,20(6):1271-1279.
[15] TESTON S A,CARATI E G,COSTA J P D,et al.Comparison of two connection possibilities of the clamp capacitor in the Active-Clamped ZVS current-fed half-bridge converter[C].2015 IEEE 13th Brazilian Power Electronics Conference and 1st Southern Power Electronics Conference,2015:1-6.