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DC nanogrid for renewable sources with modular DC/DC LLC converter building block

机译：具有模块化DC / DC LLC转换器构建块的可再生资源DC纳米网格

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摘要

Centralised electricity systems are being integrated by a multitude of small distributed generation clusters, called nanogrids, capable of ensuring full utilisation of renewable energy sources, high flexibility, efficiency and improved reliability of the power grid due to redudancy. In this study, small photovoltaic plants combined with energy storage systems represent a promising solution for full exploitation of renewable energies and for effective development of electromobility. The purpose of this study is two-fold: first it deals with a DC nanogrid suitable for small energetic clusters such as residential or office buildings and consisting of photovoltaic arrays, fuel cells, electric vehicle charger stations, loads, then proposes a multifunctional full-bridge DC/DC LLC resonant converter building block. The latter, while accepting large input/output ranges is suitable for photovoltaic and fuel cells energy conversion, electric vehicle recharging stations and other DC applications available in the nanogrid. Proposed power system can be interconnected with conventional AC grid through voltage source converter. After description of proposed nanogrid, some analyses are performed on its core element, i.e. the DC converter building block.
机译：集中的电力系统由称为纳米电网的许多小型分布式发电集群集成，这些集群能够确保可再生能源的充分利用，冗余度高，灵活性高，效率高以及电网可靠性提高。在这项研究中，小型光伏电站与储能系统相结合，为充分利用可再生能源和有效发展电动汽车提供了一种有前途的解决方案。这项研究的目的有两个方面：首先研究适用于小型高能集群（如住宅或办公楼）的DC纳米电网，其中包括光伏阵列，燃料电池，电动汽车充电站，负载，然后提出多功能的桥式DC / DC LLC谐振转换器构建模块。后者虽然接受较大的输入/输出范围，但适用于光伏和燃料电池的能量转换，电动汽车充电站以及纳米电网中可用的其他DC应用。拟议的电力系统可以通过电压源转换器与常规交流电网互连。在描述拟议的纳米电网之后，对其核心要素（即DC转换器构件）进行了一些分析。

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