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首页> 外文期刊>Power Electronics, IET >Design and analysis of a novel SEPIC-based multi-input DC/DC converter
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Design and analysis of a novel SEPIC-based multi-input DC/DC converter

机译：基于SEPIC的新型多输入DC / DC转换器的设计与分析

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摘要

A novel single-ended primary-inductor converter (SEPIC)-based multi-input DC/DC converter is presented. The structure inherits all the advantages of the SEPIC converter such as step-up/down capability without inverting the polarity of the regulated output voltage and using a series capacitor to couple energy from the input to the output. The presented converter has a bidirectional input port, in which the energy storage system (ESS) can be connected, and several unidirectional input ports. Hybridising several alternative energy sources is achievable by the proposed converter. In addition, the load power can be flexibly divided among various power sources. Due to the buck-boost characteristic of the presented converter, it is suitable to charge-discharge the ESS and to extract maximum power from the photovoltaic panels. Based on the charging state of the ESS, two operation modes are defined. Steady-state and dynamic behaviour of the proposed converter is analysed thoroughly. Experimental results are also provided to verify the analysis and feasibility of the proposed converter.
机译：提出了一种新颖的基于单端初级电感转换器（SEPIC）的多输入DC / DC转换器。该结构继承了SEPIC转换器的所有优点，例如具有升压/降压功能，而无需反转稳压输出电压的极性，并且使用串联电容器将能量从输入耦合到输出。提出的转换器具有一个双向输入端口和几个单向输入端口，可在其中连接能量存储系统（ESS）。通过提出的转换器可以实现几种替代能源的混合。另外，可以在各种电源之间灵活地分配负载功率。由于所提出的转换器的降压-升压特性，它适合对ESS进行充放电并从光伏板中提取最大功率。根据ESS的充电状态，定义了两种操作模式。对该转换器的稳态和动态行为进行了详尽的分析。还提供了实验结果，以验证所提出的转换器的分析和可行性。

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