LLC諧振轉換器設計與實現

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姓名

温雅婷(Ya-Ting Wen) 查詢紙本館藏

畢業系所

電機工程學系

論文名稱

LLC諧振轉換器設計與實現
(Design and Implementation of High-Performance LLC Resonant)

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摘要(中)

本論文主要為研製一高效率LLC諧振轉換，電路拓樸中包含半橋功率級、諧振槽、變壓器與輸出整流的部份，使用兩個電感與一個電容做為諧振槽元件。LLC諧振式轉換器具有許多優點，它充分利用寄生電容及諧振槽使其達成零電壓切換，降低開關切換損失同時也減少寄生元件引起的不良效應，當輸入電壓下降時亦可透過變頻方式提高電壓增益，維持輸出端穩定。電路分析使用一階諧波近似方法，設計出最佳化得元件參數，搭配MATLAB模擬出電壓增益值對頻率響應圖，了解品質因數(Qe)與電感比值(K)對電路影響。本論文研製出一台150W之轉換器，其輸入電壓為375~405 VDC，輸出電壓53VDC，額定輸出電流2.83A，以實驗結果驗證理論分析，並藉由實驗結果顯示LLC諧振轉換器可提供高效率電源給網通設備、LED照明設備及未來節能應用等使用。

摘要(英)

This thesis presents a high efficiency LLC converter including a half bridge stage, a resonant tank, a transformer, and a rectifier. The resonant tank includes two inductors and a capacitor. LLC resonant converter uses parasitic capacitances and the resonant tank to achieve ZVS, which can reduce the switching loss and also can eliminate bad influences from parasitic elements. The voltage drop of an electrical circuit can increase voltage gain by adjusting the switching frequency to let the output voltage stable. The thesis uses first harmonic approximation (FHA) as analysis method. FHA method can optimize element parameters. This thesis uses MATLAB to simulate circuit the relation between gain and frequency, and also shows that quality factor and the rated inductors are how important for the circuit. This thesis implies on 150W LLC resonant converter, output voltage and rated current are 53V and 2.83A respectively. Also experiment results are given to verify theoretical design. The proposed design can be used in Power of Ethernet (POE), power supply of LED and green energy equipment in the future.

關鍵字(中)

★ 半橋式LLC諧振直流/直流轉換
★ 一階諧波近似方法

關鍵字(英)

★ the half bridge LLC resonant converter
★ irst harmonic approximation

論文目次

摘要 ..................................................i
Abstract..............................................ii
誌謝..................................................iii
目錄 ..................................................iv
圖目錄.................................................vi
表目錄.................................................ix
符號說明 ...............................................x
第一章緒論.............................................1
1-1 前言................................................1
1-2 研究目的與架構.......................................2
第二章 LLC 諧振轉換器原理與介紹...........................7
2-1 LLC 諧振式轉換器介紹.................................7
2-2 LLC 工作原理分析 ...................................10
2-3 LLC 諧振轉換器模式分析...............................25
2-3-1 參數關係..........................................26
2-3-2 電壓增益函數 .....................................28
第三章LLC 諧振式轉換器參數設計............................30
3-1 LLC 諧振轉換器規格設計...............................30
3-2 諧振元件參數設計.....................................30
3-3 開迴路模擬..........................................45
第四章實驗結果與討論....................................49
4-1 一次測量測波形......................................50
4-2 二次測量測波形 .....................................53
4-3 損耗分析 ...........................................57
4-4 實驗數據討論 .......................................58
第五章未來展望 ........................................60
5-1 結論...............................................60
5-2 未來展望............................................61
參考文獻 ...............................................62

參考文獻

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[3] A. K. S. Bhat, “Analysis, optimization and design of a series-parallel resonant converter,” in Proc. IEEE APEC, pp. 155-164, 1990.
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[6] R. Liu, and C. Q. Lee, “Analysis and design of LLC-type series resonant convertor,” IEE Proc, vol. 24, no.24 , pp.1517 -1519,1988
[7] I.Batarseh, and K. Siri, “LLC-type series resonant convertor with PWM control,” IEE Proceedings, Vol. 141, pp.73-81, 1994
[8] Bin Wang, Xiaoni Xin, “Analysis and Implementation of LLC Burst Mode for Light Load Efficiency Improvement, ” Applied Power Electronics Conference and Exposition. APEC, 2009. Twenty-Fourth Annual IEEE
[9] Weiyi Feng ,Fred C. Lee, “LLC resonant converter burst mode control with constant burst time and optimal switching pattern” Applied Power Electronics Conference and Exposition (APEC), 2011. Twenty-Sixth Annual IEEE
[10] Reza Beiranvand, “Optimizing the LLC–LC Resonant Converter Topology for Wide-Output-Voltage and Wide-Output-Load Applications”, IEEE Trans. on Power Electronics, Vol. 26, pp.3192-3204, 2011
[11] Choi Hangseok, “Analysis and Design of LLC Resonant Converter with Integrated Transformer” IEEE APEC, 2007.
[12] Designing an LLC Resonant Half-Bridge Power Converter。2010, 2011，
http://tech.ebv.com/TI-DESIGNS/include/TIDM-RESLLC-DCDC/slup263.pdf
[13] “8-Pin High-Performance Resonant Mode Controller,” UCC25600 Data Sheet, TI Literature No. SLUS846
[14] “Using the UCC25600EVM,” User’s Guide, TI Literature No. SLUU361
[15] Bob Mammano, “Resonant Mode Converter Topologies,” Unitrode Design Seminar, 1985, TI Literature No. SLUP085
[16] Bing Lu et al., “Optimal design methodology for LLC resonant converter,” Applied Power Electronics Conference and Exposition (APEC) 2006, pp. 533–538.
[17] S. De Simone, et al., “Design-oriented steadystate analysis of LLC resonant converters based on first-harmonic approximation,” Texas Instruments 27 SLUP263 3-27 Topic 3 International Symposium on Power Elec tronics, Electrical Drives, Automation and Motion (SPEEDAM) 2006, pp. S41-16 to S41-23.
[18] Hangseok Choi, “Analysis and design of LLC resonant converter with integrated transformer,”Applied Power Electronics Con ference and Exposition (APEC) 2007, pp. 1630–1635.
[19] Thomas Duerbaum, “First harmonic approx imation including design constraints,” Twentieth International Telecommunications Energy Conference (INTELEC) 1998, pp. 321–328.
[20] R.L. Steigerwald, “A comparison of half bridge resonant converter topologies,” IEEE Transactions on Power Electronics, Vol. 3, No. 2, pp. 174–182, April 1988.

指導教授

徐國鎧(Kuo-Kai Shyu)

審核日期

2016-7-28

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