Accurate analytical calculation of losses and efficiency in full - bridge DC - DC Converter

2022 IEEE International Autumn Meeting on Power, Electronics and Computing (ROPEC) Pub Date : 2022-11-09 DOI:10.1109/ROPEC55836.2022.10018777

D. Gallo-Reyes, I. Álvarez-Marín, J. Ortíz-Marín, D. Ruiz-Robles, V. Venegas-Rebollar, E. Moreno-Goytia

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Abstract

Low - loss, high - efficiency DC - DC converters are key components for applications such as interconnection of photovoltaic (PV) systems, wind power systems, energy storage systems (ESS), electric vehicles (EV), power electronic transformer (PET), and DC microgrids. Prior to laboratory implementation, it is essential to obtain an accurate calculation of power losses in the converter. In this work, an accurate analytical calculation of losses in a Full - Bridge DC-DC Converter (FBDC) is presented and validated with simulation results. The analytical calculation presented shows the analysis both in the rectification section and in the inverter section, in addition to the Medium Frequency Transformer (MFT) analysis. The results obtained are validated by simulation (Matlab - Simulink). The obtained efficiency and losses in the FBDC converter are 96.6% and 31.56W, respectively. The results obtained provide a contribution to the designers of DC - DC converters.

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全桥DC - DC变换器的损耗和效率的精确解析计算

低损耗、高效率的DC - DC变换器是光伏(PV)系统、风力发电系统、储能系统(ESS)、电动汽车(EV)、电力电子变压器(PET)和直流微电网互连等应用的关键部件。在实验室实施之前，必须获得转换器功率损耗的准确计算。本文给出了全桥DC-DC变换器(FBDC)损耗的精确解析计算方法，并通过仿真结果进行了验证。文中的分析计算除了对中频变压器进行分析外，还对整流部分和逆变部分进行了分析。通过Matlab - Simulink仿真验证了所得结果。FBDC变换器的效率和损耗分别为96.6%和31.56W。所得结果对DC - DC变换器的设计有一定的参考价值。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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2022 IEEE International Autumn Meeting on Power, Electronics and Computing (ROPEC)

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