| 一种新型三电平ZCT DC/DC变流器 |
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| 引用本文： | 缪磊,张军明,钱照明.一种新型三电平ZCT DC/DC变流器[J].电力电子技术,2007,41(12):79-81. |
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| 作者姓名： | 缪磊 张军明 钱照明 |
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| 作者单位： | 浙江大学,浙江,杭州,310027 |
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| 摘 要： | 提出了一种新型PWM三电平零电流开关(ZCT)DC/DC变流器拓扑.通过在变压器的次级引入一个辅助网络,不仅在全负载范围内实现了初级主管与次级辅管的ZCS,同时也实现了次级输出整流二极管的软变换.另外,由于该电路拓扑采用了三电平结构,使初级主管的电压应力仅为输入电压的50%,这正好满足了高电压场合的应用.经仿真分析和制成的1.5kW,100kHz样机实验,验证了所提理论分析的正确性.
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| 关 键 词： | 变流器 脉宽调制 软启动 |
| 文章编号： | 1000-100X（2007）12-0079-03 |
| 收稿时间： | 2007-07-31 |
| 修稿时间： | 2007年7月31日 |
A Novel Zero-Current-Transition Three-Level DC/DC Converter |
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| MIAO Lei,ZHANG Jun-ming,QIAN Zhao-ming.A Novel Zero-Current-Transition Three-Level DC/DC Converter[J].Power Electronics,2007,41(12):79-81. |
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| Authors: | MIAO Lei ZHANG Jun-ming QIAN Zhao-ming |
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| Abstract: | A novel Zero Current Transition(ZCT) PWM Three Level(TL) DC/DC converter is presented.By adding an auxiliary circuit at the secondary side,not only all the main switches and the auxiliary switch can achieve ZCS in the entire load ranges,but also realizes soft communication for the output rectifier diodes.Furthermore,the voltage stress of the main switches at the primary side is just half of the input voltage due to its three-level topology.It is suitable for high volt-age applications.Simulation analysis and a 1.5kW,100kHz prototype are performed to verify the theoretical analysis. |
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| Keywords: | eonverter pulse width modulation soft switching |
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