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首页> 外文会议>2015 5th International Conference on Electric Utility Deregulation and Restructuring and Power Technologies >Power losses analysis and efficiency evaluation of high boost converters for PV and fuel cell applications
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Power losses analysis and efficiency evaluation of high boost converters for PV and fuel cell applications

机译：用于光伏和燃料电池应用的高升压转换器的功率损耗分析和效率评估

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摘要

In renewable energy power conditioning system (PCS), like photovoltaic (PV) and fuel cell sources, the low input current ripple represents a very important issue to improve the source efficiency. This paper presents an analysis of the power losses and efficiency of two high boosting converters for PV and fuel cell applications, designed by the authors. The two converters are characterized by a single switching device and, the first topology, by a reduced input current ripple and, the second one, by a zero input ripple condition. In particular, the free ripple condition of the second topology is obtained by coupling the two inductors that are uncoupled in the first topology. A detailed mathematical analysis of the power losses and efficiency is presented together with an evaluation of the effects on the efficiency caused by coupling the inductors. The proposed concepts are demonstrated by simulation.
机译：在可再生能源电力调节系统（PCS）中，例如光伏（PV）和燃料电池电源，低输入电流纹波是提高电源效率的一个非常重要的问题。本文介绍了作者设计的两种用于光伏和燃料电池应用的高升压转换器的功率损耗和效率分析。这两个转换器的特征在于单个开关器件，第一个拓扑的特点是输入电流纹波减小，第二个拓扑的特征是零输入纹波条件。特别地，通过耦合在第一拓扑中未耦合的两个电感器来获得第二拓扑的自由纹波条件。给出了功率损耗和效率的详细数学分析，以及对电感耦合造成的效率影响的评估。通过仿真演示了提出的概念。

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