| 引用本文: | 陆治国,刘捷丰,郑路遥,秦煜森.新型双输入Boost变换器[J].电力自动化设备,2010,(9): |
| LU Zhiguo,LIU Jiefeng,ZHENG Luyao,QIN Yusen.Double-input Boost converter[J].Electric Power Automation Equipment,2010,(9): |
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| 摘要: |
| 针对传统的多输入变换器（MIC）具有电路结构复杂、电压增益低或开关器件电压应力高的问题，提出了一种新型双输入Boost变换器拓扑结构，该拓扑由2个完全一致的基本Boost变换器子拓扑构成，每个基本Boost变换器的功率开关管分别并联一个功率二极管，在单输入状态时一个始终导通，另一个始终关断；在双输入状态时，2个功率二极管全部关断。分析了2种输入状态下的工作原理及各个阶段的工作模态，结果表明该变换器适合工作在双输入状态，且在此状态时可以实现2种不同性质的电源输入，具有电压增益高、开关器件电压应力低等优点。研制了一台输出功率为240 W的双输入Boost变换器原理样机，通过实验验证了理论分析的正确性。 |
| 关键词: 多输入变换器 双输入Boost变换器 电压增益 电压应力 工作模态 |
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| Double-input Boost converter |
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LU Zhiguo, LIU Jiefeng, ZHENG Luyao, QIN Yusen
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State Key Laboratory of Power Transmission Equipment & System Security and New Technology，Chongqing University，Chongqing 400044，China
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| Abstract: |
| As the traditional MIC（Multi-Input Converter） has complex structure，low voltage gain and high switch voltage stress，a double-input Boost converter is proposed，which consists of two identical basic Boost converters. A power diode is added in parallel to the power switch of each Boost converter. In single-input state，one diode is always on and the other always off，while in double-input state，both are off. The operating principle and modes of both states are analyzed and the results show that the double-input Boost converter has high voltage gain and low switch voltage stress when it operates in double-input state with different power supplies. A 240W prototype is developed to verify the correctness of theoretical analysis. |
| Key words: MIC double-input Boost converter voltage gain voltage stress operating mode |
