交错控制双输入Boost变换器的能量传输模式及输出纹波电压分析

doi:10.19595/j.cnki.1000-6753.tces.200923

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摘要多输入Boost变换器较传统并联方式工作的Boost变换器而言,具有体积小、成本低、增益高、控制方式灵活等优点,因此在新能源联合分布式发电系统中具有广阔的应用前景。但由于多输入Boost变换器存在多个输入电压及功率开关管,导致其供能模式及输出纹波电压较传统Boost变换器要复杂得多。为给多输入Boost变换器的分析和设计提供正确的理论指导,该文对采用交错控制的双输入Boost变换器供能模式及输出纹波电压进行深入研究。研究结果发现,电感L₁存在完全电感供能模式（CISM）、不完全电感供能模式（IISM）和断续导电模式（DCM）三种供能模式;电感L₂存在连续导电模式（CCM）和DCM两种供能模式。推导出各供能模式的临界电感,得到各供能模式的输出纹波电压解析式,据此给出双输入Boost变换器参数设计方法。实验结果验证了该理论分析的正确性。

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	皇金锋
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关键词 ：双输入Boost变换器, 能量传输模式, 临界电感, 输出纹波电压, 参数设计

Abstract：Multi-input Boost converters have the advantages of small size, low cost, high gain, and flexible control methods compared with Boost converters operating in a traditional parallel mode. Therefore, they have broad application prospects in new energy joint distributed power generation systems. However, due to the existence of multi-input voltage and power switches, the power supply mode and output ripple voltage of the multi-input Boost converter are more complicated than those of traditional Boost converters. In order to provide correct theoretical guidance for the analysis and design of the multi-input Boost converter, this paper studies the power supply mode and output ripple voltage of dual-input Boost converter with interleaved control. It is found that there are three energy supply modes for inductor L₁: complete inductor energy supply mode (CISM), incomplete inductor energy supply mode (IISM) and discontinuous conduction mode (DCM), and two energy supply modes for inductor L₂: continuous conduction mode (CCM) and DCM. The critical inductance of each energy supply mode is derived, and the analytical expression of output ripple voltage of each energy supply mode is obtained. Accordingly, the parameter design method of dual-input Boost converter is given. The experimental results verify the correctness of the theoretical analysis.

Key words： Dual-input Boost converter energy transfer mode the critical inductance output ripple voltage parameter design

收稿日期: 2020-07-24

PACS:

TM46

基金资助:陕西省教育厅科研计划（20JS022）和陕西理工大学人才启动基金（SLGQD1808）资助项目

通讯作者: 皇金锋男,1978年生,博士,副教授,硕士生导师,研究方向为开关变换器的分析与设计。E-mail: jfhuang2000 @163.com

作者简介: 韩梦祺男,1994年生,硕士研究生,研究方向为开关变换器的分析与设计。E-mail: mqhan411@163.com

引用本文:

皇金锋, 韩梦祺. 交错控制双输入Boost变换器的能量传输模式及输出纹波电压分析[J]. 电工技术学报, 2021, 36(14): 3022-3033. Huang Jinfeng, Han Mengqi. Analysis of Energy Transmission Mode and Output Ripple Voltage of Interleaved Dual-Input Boost Converter. Transactions of China Electrotechnical Society, 2021, 36(14): 3022-3033.

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