研究生: |
游景賀 Ching-Ho Yu |
---|---|
論文名稱: |
全橋相移轉換器同步整流開關之壓降式緩振電路設計 Design of Buck Type Snubber Synchronous Rectification of Full-Bridge Phase-Shift Converter |
指導教授: |
邱煌仁
Huang-Jen Chiu 黃仁宏 Jen-Hung Huang |
口試委員: |
邱煌仁
Huang-Jen Chiu 黃仁宏 Ren-Hong Huang 謝耀慶 Yao-Ching Hsieh 林景源 Jing-Yuan Lin 劉宇晨 Yu-Chen Liu |
學位類別: |
碩士 Master |
系所名稱: |
電資學院 - 電子工程系 Department of Electronic and Computer Engineering |
論文出版年: | 2019 |
畢業學年度: | 107 |
語文別: | 中文 |
論文頁數: | 112 |
中文關鍵詞: | 全橋相移轉換器 、緩振電路 、箝位二極體 |
外文關鍵詞: | full-bridge phase-shift, clamping diode |
相關次數: | 點閱:367 下載:0 |
分享至: |
查詢本校圖書館目錄 查詢臺灣博碩士論文知識加值系統 勘誤回報 |
在全橋的應用中,全橋相移是最為普遍被使用的架構,其具有柔切的特性,在效率上可以達到很好的表現,特別是在高功率的應用上。但不論二次側使用同步整流還是非同步整流,二次側的整流開關都具有電壓突波現象,因此需提升二次側整流元件的耐壓。本文提出一個新型壓降式緩振電路不只是為了抑制二次側電壓突波,同時也可以取代一次側的箝位二極體,因為其於輕載時溫度容易上升,使得損耗增加。文中提出的壓降式緩振電路將電壓突波的能量儲存至緩振電路的儲能電容上,再利壓降式轉換器的原理,把能量傳送至輸出端,達到能量回收的效果,讓整流開關的電壓應力得以降低,因此可以選用耐壓較低的同步整流開關降低開關導通電阻上的損耗,提升整體電路的效率。
另外本論文將探討緩振電路在不同箝位點上的差異並進行比較,最後再利用模擬軟體和實測波形,來證明壓降式緩振電路箝位在整流開關上的可行性,與效率上的改善。
In the applications of full bridge, phase shift is a most popular architecture. It has an excellent performance on efficiency thanks to soft-switching, especially in high power high voltage applications. However, whether the secondary side uses synchronous rectification or non-synchronous rectification, it will produce the voltage spike on secondary rectifier switches. The voltage spike increases the voltage stress of rectifier switches.
This thesis proposes a new type of buck snubber circuit not only to clamp the voltage spike but also to replace the of clamping diode on the primary side because its temperature will be high in light load and increase the power loss.
The buck snubber stores the energy of voltage spike into the capacitor and transfers the energy to output which makes the spike energy recovery. By the way, the voltage stress on rectifier switches was reduced, the rectifier switches can be changed as lower voltage stress with lower turn-on resistance. The efficiency of the system will also be increased.
In addition, the thesis will compare the difference of clamping point between the rectifier switch and secondary transformer. Finally, the simulation waveform and measure waveform will be used to prove the feasibility of buck snubber and its improvement of efficiency.
[1] W. Kwon and H. Kim, "Efficient Server Power Supply Configuration for Cloud Computing Data Center," 2014 International Conference on Computational Science and Computational Intelligence, Las Vegas, NV, 2014, pp. 299-300.
[2] I. Cho, K. Cho, J. Kim and G. Moon, "A New Phase-Shifted Full-Bridge Converter With Maximum Duty Operation for Server Power System," in IEEE Transactions on Power Electronics, vol. 26, no. 12, pp. 3491-3500, Dec. 2011.
[3] L. Zhou, Y. Wu, J. Honea and Z. Wang, "High-efficiency True Bridgeless Totem Pole PFC based on GaN HEMT: Design Challenges and Cost-effective Solution," Proceedings of PCIM Europe 2015; International Exhibition and Conference for Power Electronics, Intelligent Motion, Renewable Energy and Energy Management, Nuremberg, Germany, 2015, pp. 1-8.
[4] W. Yang, P. Geng, Y. Wang, P. Zhang and Z. Xu, "The affect of dead-time to ZVS phase-shifted full-bridge converter," 2015 18th International Conference on Electrical Machines and Systems (ICEMS), Pattaya, 2015, pp. 578-580.
[5] C. Kim, J. Lee, J. Baek, H. Youn and G. Moon, "Improved three switch-active clamp forward converter with low switching loss," 2017 IEEE 3rd International Future Energy Electronics Conference and ECCE Asia (IFEEC 2017 - ECCE Asia), Kaohsiung, 2017, pp. 275-279.
[6] Bor-Ren Lin, Kevin Huang and David Wang, "Analysis, design, and implementation of an active clamp forward converter with synchronous rectifier," in IEEE Transactions on Circuits and Systems I: Regular Papers, vol. 53, no. 6, pp. 1310-1319, June 2006.
[7] C. Gillmor, Comparison of PSFB and FB-LLC for high power DC/DC conversion. Texas Instrusment, 2018.
[8] B. Chen and Y. Lai, "Switching Control Technique of Phase-Shift-Controlled Full-Bridge Converter to Improve Efficiency Under Light-Load and Standby Conditions Without Additional Auxiliary Components," in IEEE Transactions on Power Electronics, vol. 25, no. 4, pp. 1001-1012, April 2010.
[9] H. Wang, M. Shang and A. Khaligh, "A PSFB-Based Integrated PEV Onboard Charger With Extended ZVS Range and Zero Duty Cycle Loss," in IEEE Transactions on Industry Applications, vol. 53, no. 1, pp. 585-595, Jan.-Feb. 2017.
[10] P. C. Todd,”Snubber Circuits:Theory,Design, and Application,” Texas Instruments,1993.p.
[11] S. Kim, H. Cha, D. Kim, S. Lee, H. G. Kim and B. Choi, "A novel phase-shift full-bridge DC-DC converter using Magneto-rheological fluid gap inductor," 2013 IEEE ECCE Asia Downunder, Melbourne, VIC, 2013, pp. 753-75.
[12] G. Hua, F. C. Lee and M. M. Jovanovic, "An improved full-bridge zero-voltage-switched PWM converter using a saturable inductor," in IEEE Transactions on Power Electronics, vol. 8, no. 4, pp. 530-534, Oct. 1993.
[13] T. -. Wu, C. -. Tsai, W. -. Lin and Y. -. Chen, "An Improved Current-Doubler with Coupled Inductors," 2006 CES/IEEE 5th International Power Electronics and Motion Control Conference, Shanghai, 2006, pp. 1-5.
[14] A. Abramovitz, T. Cheng and K. Smedley, "Analysis and Design of Forward Converter With Energy Regenerative Snubber," in IEEE Transactions on Power Electronics, vol. 25, no. 3, pp. 667-676, March 2010.
[15] X. Zhang, C. Li, H. Yang and Y. Guan, "Control strategy analysis and loop design of full-bridge phase-shift soft-switching DC-DC converter," 2016 IEEE 8th International Power Electronics and Motion Control Conference (IPEMC-ECCE Asia), Hefei, 2016, pp. 1139-1145.
[16] G. R. Zhu, D. H. Zhang, W. Chen and F. Luo, "Modeling and analysis of a rectifier voltage stress mechanism in PSFB converter," 2012 Twenty-Seventh Annual IEEE Applied Power Electronics Conference and Exposition (APEC), Orlando, FL, 2012, pp. 857-862.
[17] Song-Yi Lin and Chern-Lin Chen, "Analysis and design for RCD clamped snubber used in output rectifier of phase-shift full-bridge ZVS converters," in IEEE Transactions on Industrial Electronics, vol. 45, no. 2, pp. 358-359, April 1998.
[18] L. Yin, Q. Chen, B. Peng, J. Wang and X. Ruan, "Key Issues of Clamping Diodes in DCM Phase-Shift Full-Bridge Converter," 2007 IEEE Power Electronics Specialists Conference, Orlando, FL, 2007, pp. 1721-1725.
[19] M. Cacciato and A. Consoli, "New regenerative active snubber circuit for ZVS phase shift Full Bridge converter," 2011 Twenty-Sixth Annual IEEE Applied Power Electronics Conference and Exposition (APEC), Fort Worth, TX, 2011, pp. 1507-1511.
[20] Alan Martin, Hysteretic buck regulator. Texas Instrusment, 2013.
[21] PMP6712, Dual-channel Full-Bridge Converter (54V @ 30A) for POE Power Sourcing (PSE), Texas Instrument, 2013.
[22] Abraham l. Pressman, Switching Power Supply Design (3nd Ed), The McCraw-Hill Companies, Inc., 2009, pp111-112.
[23] L. H. Mweene, C. A. Wright and M. F. Schlecht, "A 1 kW, 500 kHz front-end converter for a distributed power supply system," Proceedings, Fourth Annual IEEE Applied Power Electronics Conference and Exposition, Baltimore, MD, USA, 1989, pp. 423-432.
[24] 吳義利,切換式電源轉換器原理與實用設計(實例設計導向),文笙書局股份有限公司,2012 年。