1kW LLC半橋諧振轉換器設計與研製

Analysis and Design for 1-kW half-bridge LLC Resonant Converter

張志寬(Zhi-kuan Zhang)

指導教授 ： 謝冠群 ； 謝宏毅

中原大學/電機資訊學院/電機工程研究所/碩士(2019年)

https://doi.org/10.6840/cycu201900537

摘要

本文介紹了在Ⅱ區工作的交錯式LLC諧振變換器的設計和實現。詳細描述了用於實現交錯LLC諧振轉換器的分析和設計考慮因素。自從在Ⅱ區工作以來，輸出電流的相鄰波形（例如全波整流）沒有間隙，這肯定會減小輸出電流諧波。由於來自交錯的輸出電流並聯組合，因此高峰值漣波電流可能導致需要高性能電容器。所幸，交錯式LLC諧振轉換器的高效率和穩定性優勢可以克服這些缺點。最後，本研究提出了1 kW交錯LLC轉換器的設計實例，以驗證分析，結果接近預測。

關鍵字

交錯式LLC轉換器 ； 零電壓開關

並列摘要

This thesis introduces the design and implementation of an interleaved LLC resonant converter operating in Zone II. The analysis and design considerations for implementing an interleaved LLC resonant converter are described in detail. Since working in Zone II, adjacent waveforms of the output current, such as full.wave rectification, have no gaps, which will definitely reduce the output current harmonics. Since the output currents from the interleaving are combined in parallel, high peak ripple currents may result in the need for high performance capacitors. Fortunately, the high efficiency and stability advantages of the interleaved LLC resonant converter can overcome these shortcomings. Finally, this study proposes a design example of a 1 kW interleaved LLC converter to verify the analysis, and the results are close to prediction.

並列關鍵字

interleaved LLC converter, ； ripple current

參考文獻

[1]. Mazliza Abdul Halim , Mohammad Nawawi Seroji ,Muhamad Nabil Bin Hidayat,” Analysis characteristics and optimal design procedure of half-bridge LLC loaded resonant converter,” Posted on 2-5 Dec. 2012,IEEE International Conference on Power and Energy.

[2]. T. S. Chan, and C. L. Chen, “LLC Resonant Converter for Wireless Energy Transmission System with PLL Control,” in Proc. Sustainable Energy Technologies., pp. 136-139 ICSET, 2008.

[3]. R. L. Steigerwald, “A comparision of half-bridge resonant converter topologies,” IEEE Trans. Power Electron, vol. 3, no. 2, pp. 174 - 182, 1988.

[4]. Hangseok Choi, “Analysis and Design of LLC Resonant Converter with Integrated Transformer,”IEEE APEC, 25 Feb.-1 March 2007.

[5]. R. Liu and F. C. Lee, “Analysis and design of LLC-type series resonant convertor,” IEE Electron. Letter, vol. 24, no. 24, pp. 1517-1519, 1988.