具高功因特性三相輸入直流電源供應系統之實現

Implementation of Three-Phase Fed DC Power Supply System with High Power Factor

張村叮(Tsuen-Ding Chang)

指導教授 ： 邱煌仁

中原大學/工學院/電機工程研究所/碩士(2005年)

https://doi.org/10.6840/cycu200500136

摘要

本論文研究一種適用於高功率應用場合之高效率高功因電源供應系統，其係由三相三開關功因修正器和具有倍流整流器之相移式零電壓全橋直/直流轉換器所組成。高功因可藉由所採用具有簡單架構之功因修正電路所達成；而全橋直/直流轉換器之相移式操作可提供橋式功率開關具有零電壓切換特性，以有效降低其切換損耗；倍流整流器之使用則可顯著降低二次側整流損耗，因此高效率得以實現。此電源供應系統之詳細工作原理和設計準則將完整地被分析及討論。一部1.1kW 55V/20A的雛型電路已被實現和測試，其實現結果驗證了所提出設計的可行性。實現之電源供應系統具有如高功因、高效率、簡單架構和高可靠度的優異特性。

關鍵字

相移式零電壓切換全橋直/直流轉換器 ； 功因修正器 ； 倍流整流

並列摘要

In this thesis, a high efficiency power supply system with high power factor is proposed for high power applications. The studied power supply system consists with a three-phase three-switch power factor corrector (PFC) and a phase-shifted zero-voltage-transition full-bridge DC/DC converter with current doubler rectification. High power factor input can be achieved by the adopted PFC circuit with a simple configuration. The phase-shifted operation of the full-bridge DC/DC converter provides the zero-voltage-switching (ZVS) features for the bridge switches to reduce the switching losses effectively. The current doubler rectification reduces significantly the secondary rectification losses. Therefore, high efficiency can be also accomplished. The detailed operating principle and design consideration of this power supply system are analyzed and described. A 1.1kW 55V/20A laboratory prototype was implemented and tested. The experimental waveforms verify the feasibility of the proposed design. The implemented power supply system exhibits optimum performances such as high power factor, high efficiency, simple configuration and high reliability.

並列關鍵字

Phase-Shifted Zero-Voltage-Transition Full-Bridge DC/DC ； Power Factor Corrector ； Current-Doubler Rectification

參考文獻

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