ABSTRACT In stand-alone power supply including a fuel cell (FC) and photovoltaic panels, DC/DC converters must meet several requirements from compactness, high voltage ratio, input current ripples reduction, high energy efficiency and reliability regarding keeping its function in case of power switch failures point of view. In this paper, a floating interleaved DC/DC boost converter has been chosen in order to meet the requirements for FC and photovoltaic applications. Despite the presence of a natural redundancy, a power switch failure may drastically reduce the reliability of the converter due to the additional stress on the electrical components. The purpose of this paper is to propose a power switch fault detection method based on Park’s vector and a management of operating degraded mode. Obtained simulation and experimental results allow demonstrating the performance of the developed fault detection method to enhance the overall reliability of the converter.

中文翻译：

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光伏/燃料电池独立电源中浮动交错式DC/DC升压转换器的可靠性改进

摘要 在包括燃料电池 (FC) 和光伏电池板的独立电源中，DC/DC 转换器必须满足紧凑性、高电压比、减少输入电流纹波、高能效和在保持其功能的可靠性方面的几个要求，以防万一。电源开关故障的观点。在本文中，选择浮动交错式 DC/DC 升压转换器以满足 FC 和光伏应用的要求。尽管存在自然冗余，但由于电气组件上的额外应力，电源开关故障可能会大大降低转换器的可靠性。本文的目的是提出一种基于Park向量和运行降级模式管理的电源开关故障检测方法。