| 引用本文: | 邾玢鑫,黄煜,佘小莉,刘光辉,胡施施.一种适用于SEPIC变换器的可拓展电压增益单元电路[J].电力自动化设备,2021,41(4): |
| ZHU Binxin,HUANG Yu,SHE Xiaoli,LIU Guanghui,HU Shishi.Extendable voltage multiplier cell circuit applied to SEPIC converter[J].Electric Power Automation Equipment,2021,41(4): |
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| 摘要: |
| 因寄生参数的影响，基本DC/DC变换器的升压能力受到了限制。针对单端初级电感转换器(SEPIC)变换器提出了一种可拓展电压增益单元电路，通过在基本SEPIC变换器外围接入所提电压增益单元可有效提升变换器输入-输出电压增益，并降低开关器件的电压应力，该变换电路还具备基本SEPIC变换器输入电流连续、低纹波的优点。同时所提电压增益单元中不含有有源开关，使得基本SEPIC变换器的驱动及控制电路都相适应，无需变化。对所提变换器的工作原理和性能特点进行了详细的阐述，并构建了一台300 W的实验样机，对理论分析进行了验证。 |
| 关键词: SEPIC变换器 可拓展电压增益单元 高电压增益 输入电流连续 |
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| 基金项目:国家自然科学基金资助项目(51707103)；智慧能源技术湖北省工程研究中心开放基金资助项目(2020ZHLY03) |
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| Extendable voltage multiplier cell circuit applied to SEPIC converter |
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ZHU Binxin, HUANG Yu, SHE Xiaoli, LIU Guanghui, HU Shishi
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Hubei Provincial Engineering Research Center of Intelligent Energy Technology, China Three Gorges University, Yichang 443002, China
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| Abstract: |
| Affected by the parasitic parameters, the boosting capacity of basic DC/DC converter is limited. An extendable voltage multiplier cell circuit applied to SEPIC(Single Ended Primary Inductor Converter) converter is proposed. The proposed extendable voltage multiplier cells are connected to the basic SEPIC converter, which can increase the input-output voltage gain of the converter and reduce the voltage stress of the power switches. Besides, the proposed converter inherits the traditional SEPIC converter’s advantage of continuous and low ripple input current. Meanwhile, the proposed voltage multiplier cell contains no active switch, so that the gate driver and control circuits of traditional SEPIC converter can be adapted without changing. The operating principle and performance of the proposed converter are developed in detail, and a 300 W experimental prototype is implemented to verify the theoretical analysis. |
| Key words: SEPIC converter extendable voltage multiplier cell high voltage gain continuous input current |
