Design and Optimal Control of a Two-Stage Efficient and High PF AC-DC Converter for High-Power Density Industrial Applications

2022 14th International Conference on Software, Knowledge, Information Management and Applications (SKIMA) Pub Date : 2022-12-02 DOI:10.1109/SKIMA57145.2022.10029495

Ahmed H. Okilly, Jonghyuk Lee, Namhun Kim, S. Kwak, J. Baek

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Abstract

power quality is an essential consideration in design of the power supply in high power industrial applications. Thus, this paper covers the design of the different magnetic components, switching element selection considerations, and the voltage current controllers optimal design on the basis of small-signal stability modeling and an adequate stability criterion to enhance the high-power factor (PF), high efficiency and lower current distortions. The proposed converter contains two stages, the power factor correction (PFC) stage and the isolated phase-shift PWM zero-voltage switching (ZVS) DC-DC converter stage. The proposed two-stage converter's total harmonic distortions (THDs), voltage and current ripples, conversion efficiency, and PF performance are investigated using PSIM simulations under various operating conditions. This study designs an industrial 2000 W, 54 V telecom AC-DC supply with a PF of more than 99%, a THD of about 5 %, and conversion efficiency of around 93% at full load.

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高功率密度工业用两级高效高PF交直流变换器的设计与最优控制

在大功率工业应用的电源设计中，电能质量是一个重要的考虑因素。因此，本文涵盖了不同磁性元件的设计，开关元件的选择注意事项，以及基于小信号稳定性建模和适当的稳定性准则的电压电流控制器的优化设计，以提高高功率因数(PF)，高效率和低电流畸变。该变换器包括功率因数校正(PFC)级和隔离移相PWM零电压开关(ZVS) DC-DC变换器级。利用PSIM仿真研究了两级变换器在不同工作条件下的总谐波畸变(THDs)、电压和电流波纹、转换效率和PF性能。本研究设计了一种工业用2000w, 54v的通信交直流电源，其全负荷时PF大于99%，THD约5%，转换效率约93%。

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 14th International Conference on Software, Knowledge, Information Management and Applications (SKIMA)

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