移相H桥变换器的一种新型软开关拓扑
|
摘要
针对目前软开关变换器拓扑结构复杂、损耗较大的问题,提出移相H桥变换器的一种新型软开关拓扑,基于原有的逆变变压器和整流、滤波元件,增设一种无源辅助箝位电路,拓扑结构简单易行,无需有源器件和附加控制,通过其换流重叠及续流、箝位作用,实现超前桥臂的零电压通断和滞后桥臂的零电流通断,有效地降低变换器损耗和提高系统效率。对新型软开关拓扑进行原理定性阐述,结合各时段波形进行理论分析,得出有关软开关条件。实验结果证实了本拓扑方案及理论分析方法的有效性。
In view of the current problems in soft-switching converter with complicated topology and greater consumption,a novel soft-switching topology of phase-shift H-bridge converter was presented. Based on the original transformer,rectifier and filtering elements,a passive auxiliary clamp circuit is added. The circuit topology is simple and easy to implement,and requires no active components and additional control. Both ZVS leading-leg and ZCS lagging-leg are realized adaptively. The converter reduces the consumption and improves the system efficiency effectively. The principle of the new soft-switching topology is elaborated qualitatively. Waveforms on every time interval are analyzed theoretically. The soft-switching conditions are derived. The robustness and feasibility of the new topology and the associated theory analyzing method are verified using experimental results.
In view of the current problems in soft-switching converter with complicated topology and greater consumption,a novel soft-switching topology of phase-shift H-bridge converter was presented. Based on the original transformer,rectifier and filtering elements,a passive auxiliary clamp circuit is added. The circuit topology is simple and easy to implement,and requires no active components and additional control. Both ZVS leading-leg and ZCS lagging-leg are realized adaptively. The converter reduces the consumption and improves the system efficiency effectively. The principle of the new soft-switching topology is elaborated qualitatively. Waveforms on every time interval are analyzed theoretically. The soft-switching conditions are derived. The robustness and feasibility of the new topology and the associated theory analyzing method are verified using experimental results.
引文
[1]周林泉,阮新波.二次侧加箝位开关管的ZCS PWM Boost型DC/DC全桥变换器[J].电工技术学报,2006,21(10):81-85.ZHOU Linquan,RUAN Xinbo.A ZCS PWM boost full bridge DC-DC converter with secondary clamping switche[J].Transactions of China Electrotechnical Society,2006,21(10):81-85.
[2]王强,刘岩松,陈祥雪,等.具有对称辅助电路的谐振直流环节三电平软开关逆变器[J].中国电机工程学报,2014,34(27):40-49.WANG Qiang,LIU Yansong,CHEN Xiangxue,et al.Resonant DC link three-level soft-switching inverter with symmetrical auxiliary circuits[J].Proceedings of the CSEE,2014,34(27):40-49.
[3]成庶,陈特放,余明扬.一种新型有源次级箝位全桥零电压零电流软开关PWM变换器[J].中国电机工程学报,2008,28(12):44-49.CHENG Shu,CHEN Tefang,YU Mingyang.A novel FBZVZCS converter using improved secondary active clamping circuit[J].Proceedings of the CSEE,2008,28(12):44-49.
[4]尹培培,洪峰,王成华,等.无源无损软开关双降压式全桥逆变器[J].电工技术学报,2014,29(6):40-46.YIN Peipei,HONG Feng,WANG Chenghua,et al.Passive lossless soft-switching dual buck full bridge inverter[J].Transactions of China Electrotechnical Society,2014,29(6):40-46.
[5]孙铁成,郭建辉,王宏佳,等.改进型具有电压箝位的全桥ZVZCS PWM DC/DC变换器[J].电工技术学报,2007,22(7):47-51.SUN Tiecheng,GUO Jianhui,WANG Hongjia,et al.Improved full-bridge ZVZCS PWM DC/DC converter using voltage clamping[J].Transactions of China Electrotechnical Society,2007,22(7):47-51.
[6]陈仲,刘沙沙,史良辰,等.两种加辅助网络的全桥变换器的损耗对比分析[J].中国电机工程学报,2012,32(18):66-72.CHEN Zhong,LIU Shasha,SHI Liangchen,et a1.Power loss comparison of two full-bridge converters with auxiliary networks[J].Proceedings of the CSEE,2012,32(18):66-72.
[7]孙铁成,王高林,汤平华,等.基于数字信号处理器控制的新型全桥移相式零电压零电流开关PWM DCDC变换器[J].中国电机工程学报,2005,25(18):46-50.SUN Tiecheng,WANG Gaolin,TANG Pinghua,et al.Novel full-bridge phase-shift ZVZCS PWM DC/DC converter based on DSP control[J].Proceeding of the CSEE,2005,25(18):46-50.
[8]贺虎成.谐振极软开关逆变器工作模式分析[J].高电压技术,2013,39(3):213-220.HE Hucheng.Mode analysis of a resonant pole soft-switching inverter[J].High Voltage Engineering,2013,39(3):213-220.
[9]许峰,徐殿国,柳玉秀.一种新型的全桥零电压零电流开关PWM变换器[J].中国电机工程学报,2004,24(1):147-152.XU Feng,XU Dianguo,LIU Yuxiu.A novel zero-voltage and zero-current-switching(ZVZCS)full-bridge PWM converter[J].Proceedings of the CSEE,2004,24(1):147-152.
[10]CHO J G,BAEK J W,JEONG C Y,et al.Novel zerovoltage and zero-current-switching full bridge PWM converter using transformer auxiliary winding[J].IEEE Transactions on Power Electronics,2000,15(2):250-257.
[11]孙铁成,王宏佳,张学广,等.一种采用无源箝位电路的新型零电压零电流开关变换器[J].中国电机工程学报,2006,26(17):72-76.SUN Tiecheng,WANG Hongjia,ZHANG Xueguang,et al.A novel ZVZCS converter using passive clamp circuit[J].Proceedings of the CSEE,2006,26(17):72-76.
[12]SONG T T,HUANG N.A novel zero-voltage and zerocurrent-switching full-bridge PWM converter[J].IEEE Transactions on Power Electronics,2005,20(2):286-291.
[13]陈延明,王娟,武江峰,等.一种改进的零电压零电流倍流整流变换器[J].电工技术学报,2009,24(12):82-87.CHEN Yanming,WANG Juan,WU Jiangfeng,et al.An improved zero-voltage zero-current switching converter with current-doubler-rectifier[J].Transactions of China Electrotechnical Society,2009,24(12):82-87.
[14]石磊,朱忠尼,鞠志忠,等.一种新型能量交换式移相全桥电路[J].中国电机工程学报,2008,28(12):112-118.SHI Lei,ZHU Zhongni,JU Zhizhong,et al.A novel topology of energy exchanging pattern PS-FB circuit[J].Proceedings of the CSEE,2007,28(12):112-118.
[15]陈乾宏,殷兰兰,王健,等.二极管加电流互感器箝位的移相全桥DC/DC变换器[J].中国电机工程学报,2008,28(15):24-31.CHEN Qianhong,YIN Lanlan,WANG Jian,et al.Diodes with current transformer clamped phase-shifted fullbridge converter[J].Proceedings of the CSEE,2008,28(15):23-31.
[16]KIM E S,KIM Y H.A ZVZCS PWM FB DC/DC converter using a modified energy-recovery snubber[J].IEEE Transactions on Industrial Electronics,2002,49(5):1120-1127.
[2]王强,刘岩松,陈祥雪,等.具有对称辅助电路的谐振直流环节三电平软开关逆变器[J].中国电机工程学报,2014,34(27):40-49.WANG Qiang,LIU Yansong,CHEN Xiangxue,et al.Resonant DC link three-level soft-switching inverter with symmetrical auxiliary circuits[J].Proceedings of the CSEE,2014,34(27):40-49.
[3]成庶,陈特放,余明扬.一种新型有源次级箝位全桥零电压零电流软开关PWM变换器[J].中国电机工程学报,2008,28(12):44-49.CHENG Shu,CHEN Tefang,YU Mingyang.A novel FBZVZCS converter using improved secondary active clamping circuit[J].Proceedings of the CSEE,2008,28(12):44-49.
[4]尹培培,洪峰,王成华,等.无源无损软开关双降压式全桥逆变器[J].电工技术学报,2014,29(6):40-46.YIN Peipei,HONG Feng,WANG Chenghua,et al.Passive lossless soft-switching dual buck full bridge inverter[J].Transactions of China Electrotechnical Society,2014,29(6):40-46.
[5]孙铁成,郭建辉,王宏佳,等.改进型具有电压箝位的全桥ZVZCS PWM DC/DC变换器[J].电工技术学报,2007,22(7):47-51.SUN Tiecheng,GUO Jianhui,WANG Hongjia,et al.Improved full-bridge ZVZCS PWM DC/DC converter using voltage clamping[J].Transactions of China Electrotechnical Society,2007,22(7):47-51.
[6]陈仲,刘沙沙,史良辰,等.两种加辅助网络的全桥变换器的损耗对比分析[J].中国电机工程学报,2012,32(18):66-72.CHEN Zhong,LIU Shasha,SHI Liangchen,et a1.Power loss comparison of two full-bridge converters with auxiliary networks[J].Proceedings of the CSEE,2012,32(18):66-72.
[7]孙铁成,王高林,汤平华,等.基于数字信号处理器控制的新型全桥移相式零电压零电流开关PWM DCDC变换器[J].中国电机工程学报,2005,25(18):46-50.SUN Tiecheng,WANG Gaolin,TANG Pinghua,et al.Novel full-bridge phase-shift ZVZCS PWM DC/DC converter based on DSP control[J].Proceeding of the CSEE,2005,25(18):46-50.
[8]贺虎成.谐振极软开关逆变器工作模式分析[J].高电压技术,2013,39(3):213-220.HE Hucheng.Mode analysis of a resonant pole soft-switching inverter[J].High Voltage Engineering,2013,39(3):213-220.
[9]许峰,徐殿国,柳玉秀.一种新型的全桥零电压零电流开关PWM变换器[J].中国电机工程学报,2004,24(1):147-152.XU Feng,XU Dianguo,LIU Yuxiu.A novel zero-voltage and zero-current-switching(ZVZCS)full-bridge PWM converter[J].Proceedings of the CSEE,2004,24(1):147-152.
[10]CHO J G,BAEK J W,JEONG C Y,et al.Novel zerovoltage and zero-current-switching full bridge PWM converter using transformer auxiliary winding[J].IEEE Transactions on Power Electronics,2000,15(2):250-257.
[11]孙铁成,王宏佳,张学广,等.一种采用无源箝位电路的新型零电压零电流开关变换器[J].中国电机工程学报,2006,26(17):72-76.SUN Tiecheng,WANG Hongjia,ZHANG Xueguang,et al.A novel ZVZCS converter using passive clamp circuit[J].Proceedings of the CSEE,2006,26(17):72-76.
[12]SONG T T,HUANG N.A novel zero-voltage and zerocurrent-switching full-bridge PWM converter[J].IEEE Transactions on Power Electronics,2005,20(2):286-291.
[13]陈延明,王娟,武江峰,等.一种改进的零电压零电流倍流整流变换器[J].电工技术学报,2009,24(12):82-87.CHEN Yanming,WANG Juan,WU Jiangfeng,et al.An improved zero-voltage zero-current switching converter with current-doubler-rectifier[J].Transactions of China Electrotechnical Society,2009,24(12):82-87.
[14]石磊,朱忠尼,鞠志忠,等.一种新型能量交换式移相全桥电路[J].中国电机工程学报,2008,28(12):112-118.SHI Lei,ZHU Zhongni,JU Zhizhong,et al.A novel topology of energy exchanging pattern PS-FB circuit[J].Proceedings of the CSEE,2007,28(12):112-118.
[15]陈乾宏,殷兰兰,王健,等.二极管加电流互感器箝位的移相全桥DC/DC变换器[J].中国电机工程学报,2008,28(15):24-31.CHEN Qianhong,YIN Lanlan,WANG Jian,et al.Diodes with current transformer clamped phase-shifted fullbridge converter[J].Proceedings of the CSEE,2008,28(15):23-31.
[16]KIM E S,KIM Y H.A ZVZCS PWM FB DC/DC converter using a modified energy-recovery snubber[J].IEEE Transactions on Industrial Electronics,2002,49(5):1120-1127.