A comparison between two proposed boost topologies and conventional topologies for power factor correction

IAS '96. Conference Record of the 1996 IEEE Industry Applications Conference Thirty-First IAS Annual Meeting Pub Date : 1996-10-06 DOI:10.1109/IAS.1996.560232

J. Wang, W. Dunford, K. Mauch

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引用次数: 8

Abstract

A modified boost power converter with an extra LC branch paralleled with the active switch has been proved to have the same "voltage follower" property as the conventional boost power converter operating in discontinuous inductor current mode (DICM) In this paper, a new modified boost power converter which has an extra LC branch paralleled with the passive switch is proposed. It is proved that the new modified boost topology has continuous input inductor current when it operates in the DICM. By using coupled inductor techniques, the input inductor current can be made ripple free when it operates in the DICM. It is proved that the new modified power converter can retain the "voltage follower" property with any coupling coefficient value. A comparison between the new modified boost power converter, the existing modified boost power converter, conventional boost, the Cuk and Sepic power converters used in power factor correction is presented. Several advantages are found in the two proposed boost topologies. The differences between the two proposed boost topologies are also presented. The predicted theory is verified experimentally.

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功率因数校正的两种升压拓扑和传统拓扑的比较

本文提出了一种改进型升压功率变换器，该改进型升压功率变换器具有与有源开关并联的额外LC支路与无源开关并联的“电压跟随器”特性。实验证明，改进后的升压拓扑在DICM中工作时具有连续的电感电流输入。通过使用耦合电感技术，可以使输入电感电流在DICM中工作时无纹波。结果表明，改进后的功率变换器在任意耦合系数下都能保持“电压跟随器”特性。比较了新型改进型升压功率变换器、现有改进型升压功率变换器、传统升压变换器以及用于功率因数校正的Cuk和Sepic功率变换器。在这两种提出的升压拓扑中发现了几个优点。本文还介绍了两种升压拓扑之间的差异。实验验证了预测的理论。

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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IAS '96. Conference Record of the 1996 IEEE Industry Applications Conference Thirty-First IAS Annual Meeting

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