| 一种新型的全桥零电压零电流开关PWM变换器 |
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| 引用本文： | 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. |
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| 作者姓名： | 许峰 徐殿国 柳玉秀 |
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| 作者单位： | 哈尔滨工业大学电气工程系,黑龙江,哈尔滨,150001 |
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| 摘 要： | 提出一种新型的FB-ZVZCS—PWM变换器拓扑，采用耦合电感构成辅助电路，结构简单、没有耗能元件或有源开关，不增加原边电流应力。新拓扑具有良好的通用性，对采用不同箝位方式如阻容吸收、次级无源箝位或有源箝位的全桥变换器均适用。变换器主开关管全部采用IGBT，开关频率大幅提高，功率密度、轻载效率及软开关负载范围显著改善，而变换器成本降低。给出了变换器拓扑结构、关键参数设计及实测波形，新拓扑已应用在3kW，350VDC变换器中。
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| 关 键 词： | 全桥零电压零电流开关PWM变换器 功率密度 辅助电路 耦合电感 |
| 文章编号： | 0258-8013(2004)01-0147-06 |
| 修稿时间： | 2003年7月23日 |
A NOVEL ZERO-VOLTAGE AND ZERO-CURRENT-SWITCHING (ZVZCS) FULL-BRIDGE PWM CONVERTER |
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| XU Feng,XU Dian-Guo,LIU Yu-Xiu.A NOVEL ZERO-VOLTAGE AND ZERO-CURRENT-SWITCHING (ZVZCS) FULL-BRIDGE PWM CONVERTER[J].Proceedings of the CSEE,2004,24(1):147-152. |
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| Authors: | XU Feng XU Dian-Guo LIU Yu-Xiu |
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| Abstract: | A novel zero voltage and zero current switching (ZVZCS)full bridge(FB)pulse width modu lation (PWM) converter is proposed and analyzed.An auxiliary circuit which consists of a coupled output inductor and a diode,is adapted to provide zero- current switching (ZCS) conditions to the primary lagging-leg switches.Many advantages including simple circuit topology,high efficiency,and low cost make the new converter attractive for high power appficati- ons.The operation,analysis,features and design considerations are illustrated and verified on a 3 kW,100kHz insulated gate bipolar transistor(IGBT) based experimental circuit. |
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| Keywords: | DC-DC converter full-bridge zero-current- switching zero-voltage-switching |
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