近年來，電動汽車的發展受到重視，而電池充電器為電動車發展之核心，因此雙向電力轉換器之需求增加。本文研製「三相主動雙橋式雙向直流轉換器」搭配48V/20AH之磷酸鋰鐵電池，實現電動車電池充/放電系統。為了提升轉換器之效率，本文提出一種混合調變法來改善輕載運轉之效率。針對調變之分析而研擬出電池充/放電策略，並由實驗結果驗證其可行性。最後，使用LabVIEW圖控軟體和CAN-bus通訊協定產生電流命令，並傳至數位訊號處理器(DSP)實現轉換器之控制。

Recently, the development of electric vehicles (EVs) is valued, and the battery charger is the core of the development of EVs. Therefore, a requirement of the bidirectional power converter is increased. In the thesis, a three-phase dual-active-bridge bidirectional DC converter with a pack of 48V/20AH LiFePO4 batteries is developed to implement a charging/discharging EV battery system. To improve efficiency of the converter, a hybrid modulation is proposed and used to boost efficiency under the light-load condition. A charging/discharging strategy of battery is planned by analysis of the modulation, and validate effectiveness of the strategy was verified from experimeantal results. Finally, the LabVIEW graphical software and CAN-bus protocol are used to produce the current command, which is sent into a digital signal process (DSP) to realize the control of the converter.

摘要 iii
Abstract iv
目錄 v
圖次 vii
表次 xii
第一章 緒論 1
1.1 簡介 1
1.2 研究動機與目的 2
第二章 文獻回顧 3
2.1 簡介 3
2.2 雙向直流轉換器之分類 5
2.3 單相隔離型之雙向直流轉換器 6
2.4 多相隔離型之雙向直流轉換器 11
2.5 總結 13
第三章 電路架構及原理分析 14
3.1 簡介 14
3.2 動作原理 14
3.3 電路分析 19
3.3.1 相移調變之電路分析 19
3.3.2 梯形調變之電路分析 30
3.4 轉換器傳輸功率推導 50
3.4.1 相移調變 50
3.4.2 梯形調變 55
3.5 損失分析 57
3.5.1 開關傳導損失 60
3.5.2 開關切換損失 62
3.5.3 變壓器損失 65
 
第四章 實驗電路設計 66
4.1 電路參數之設計 66
4.2 實驗平台 69
4.3 混合調變策略設計 70
4.4 定電流/定電壓控制之流程 76
4.5 高頻變壓器設計 77
4.6 案例討論 77
4.6.1 案例分析 82
4.6.2 結論 92
第五章 實驗結果與分析 93
5.1 簡介 93
5.2 充電模式之實驗分析 94
5.2.1 穩態波形分析 94
5.2.2 開關切換分析 98
5.3 定電流/定電壓充電之實驗分析 107
5.4 放電模式之實驗分析 108
5.5 效率與損失分析 111
第六章 結論與未來研究方向 113
參考文獻 114
附錄 119

[1] 經濟部能源局http://web3.moeaboe.gov.tw/ECW/populace/home/Home.aspx
[2] 經濟部工業局http://www.moeaidb.gov.tw/external/view/tw/index.html
[3] F. Caricchi, F. Crescimbini, and A. Di Napoli, “20kW Water-cooled Prototype of a Buck-Boost Bidirectional DC-DC Converter Topology for Electrical Vehicle Motor Drives,” IEEE APEC’95, pp. 887-892, 1995.
[4] Jih-Sheng Lai, Seung-Ryul Moon, Raeyoung Kim, Feng-Yuan Lin, Yu-Hsuan Liu, and Ming-Hsien Lin, ” A General-Purpose Three-Phase DC-DC Converter Building Block for Fuel Cell Applications,” IECON Nov. 5-8, 2007, Taipei, Taiwan.
[5] Junhong Zhang, Jih-Sheng Lai, Rae-Young Kim, and Wensong Yu, ”High-Power Density Design of a Soft-Switching High-Power Bidirectional dc–dc Converter,” IEEE Trans. Power Electronics, vol. 22,no 4, Jul 2007.
[6] 鄭明憲，”具即時監測雙向並聯直流轉換器之研製”，國立成功大學，碩士論文，中華民國94年6月。
[7] Nadia M. L. Tan, Takahiro Abe, and Hirofumi Akagi, “Topology and Application
of Bidirectional Isolated DC-DC Converters,” 8th International Conference on Power Electronics- ECCE Asia May 30-June 3, 2011, The Shilla Jeju, Korea.
[8] Fang Z. Peng, Hui Li, Gui-Jia Su, and ack S. Lawler, “A New ZVS Bidirectional
DC-DC Converter for Fuel Cell and Battery Application,”IEEE Trans. Power Electronics, vol. 19, no 1, Jan. 2004.
[9] R. W. De Doncker, D. M. Divan, and M.H. Kheraluwala, “A Three-phase Soft-switched High Power Density DC-DC Converter for High Power Applications,” Industry Applications, IEEE Trans. on, vol. 27, issue 1, pp. 63–73, Jan/Feb 1991.
[10] Yu Du, S. Lukic, B. Jacobson, and A. Huang, “Review of High Power Isolated Bi-directional DC-DC Converter for PHEV/EV DC Charging Infrastructure,” Energy Conversion Congress and Exposition (ECCE), 2011 IEEE, pp. 553-560, 17-22 Sept. 2011.
[11] L. Zhu, “A Novel Soft-Commutating Isolated Boost Full-bridge ZVS-PWM DC-DC Converter for Bi-directional High Power Applications,” Power Electronics Specialists Conference, IEEE 35th Annual, vol. 3, pp. 2141–2146, 20-25 June 2004.
[12] E. S. Kim, K. Y. Joe, H. Y. Choi, Y. H. Kim, and Y. H. Cho, “An Improved Soft Switching Bi-directional PSPWM FB DC-DC Converter,” Industrial Electronics Society, 1998. IECON '98. Proceedings of the 24th Annual Conference of the IEEE, vol. 2, pp. 740–743, 31 Aug. – 4 Sep. 1998.
[13] K. Wang, C. Y. Lin, L. Zhu, D. Qu, F. C. Lee, and J. S. Lai, “Bi-directional DC to DC Converters for Fuel Cell Systems,” Power Electronics in Transportation, 1998, pp. 47–51, 22-23 Oct 1998.
[14] E. S. Park, S. J. Choi, J. M. Lee, and B. H. Cho, “A Soft-switching Active-clamp Scheme for Isolated Full-bridge Boost Converter,” Applied Power Electronics Conference and Exposition, APEC '04, Nineteenth Annual IEEE, vol. 2, pp. 1067–1070, 2004.
[15] J. G. Cho, G. H. Rim, and F. C. Lee, “Zero Voltage and Zero Current Switching Full Bridge PWM Converter using Secondary Active Clamp,” PESC '96 Record., 27th Annual IEEE, vol. 1, pp. 657–663, 23-27 Jun 1996.
[16] Hua Bai, and Chris Mi, “Eliminate Reactive Power and Increase System
Efficiency of Isolated Bidirectional Dual-Active-Bridge DC-DC Converters Using Novel Dual-Phase-Shift Control,” IEEE Trans. Power Electronics, vol. 23, no 6, Nov. 2008.
[17] Germ´an G. Oggier, Guillermo O. Garc´ıa, and Alejandro R. Oliva, “
Modulation Strategy to Operate the Dual Active Bridge DC-DC Converter Under Soft Switching in the Whole Operating Range,” IEEE Trans. Power Electronics, vol. 26,no 4, Nov. 2011.
[18] Myoungho Kim, Martin Rosekeit, Seung-Ki Sul, and Rik W. A. A. De
Doncker, “A Dual-Phase-Shift Control Strategy for Dual-Active-Bridge
DC-DC Converter in Wide Voltage Range,” 8th International Conference on Power Electronics- ECCE Asia May 30-June 3, 2011, The Shilla Jeju, Korea.
[19] Demercil de Souza Oliveira, and Ivo Barbi, “A Three-Phase ZVS PWM DC/DC
Converter with Asymmetrical Duty Cycle for High Power Applications,” IEEE
Trans. Power Electronics, vol. 20, no 2, Nov. 2005.
[20] Hyungjoon Kim, Changwoo Yoon, and Sewan Choi, “A Three-Phase
Zero-Voltage and Zero-Current Switching DC-DC Converter for Fuel Cell
Appl. IEEE Trans. Power Electronics, vol. 25, no 2, Nov. 2010.
[21] Zhan Wang, and Hui Li, “A Soft Switching Three-phase Current-fed
Bidirectional DC-DC Converter with High Efficiency over a Wide Input
Voltage Range,“ IEEE Trans. Power Electronics, vol. 27, no 2, Jul. 2012.
[22] Changrong Liu, Amy Johnson, and Jih-Sheng Lai, “A Novel Three-Phase High-
Power Soft-Switched DC/DC Converter for Low-Voltage Fuel Cell
Applications,” Industry Applications, IEEE Trans. on, vol. 41, no 6, Nov./Dec. 2005.
[23] Liang Jia, and Sudip K. Mazumder, “A Compact Bi-Directional Power-
Conversion System Scheme with Extended Soft-Switching Range, “Electric
Ship Technologies System (ESTS), 20-22 April 2009.
 
[24] Herminio M. de Oliveira Filho, Demercil S. Oliveira, and Fernando L. Tofoli,
“ZVS Bidirectional Isolated Three-Phase DC-DC Converter with Dual Phase-Shift and Variable Duty Cycle,” Industry Applications (INDUSCON), 2012 10th IEEE/IAS International Conference on 5-7 Nov. 2012.
[25] Amit Kumar Jain, and Rajapandian Ayyanar, “PWM Control of Dual Active
Bridge: Comprehensive Analysis and Experimental Verification,” IEEE Trans. Power Electronics, vol. 26, no 4, Jul. 2011.
[26] Haihua Zhou, and Ashwin M. Khambadkone, “Hybrid Modulation for Dual-Active-Bridge Bidirectional Converter with Extended Power Range for Ultracapacitor Application,” Industry Applications, IEEE Trans. on, vol. 45, no 4, July/August 2009.
[27] Hauke van Hoek, Markus Neubert, and Rik W. De Doncker, ”Enhanced Modulation Strategy for a Three-Phase Dual Active Bridge—Boosting Efficiency of an Electric Vehicle Converter,” IEEE Trans. Power Electronics, vol. 28, no 12, Jul. 2013.
[28] N. Schibli, “Symmetrical multilevel converters with two quadrant DC–DC feeding,” Ph.D. dissertation, Ecole Polytechnique Federale de Lausanne, Ind. Electron. Lab., Lausanne, Switzerland, 2000.
[29] F. Krismer, and J. W. Kolar, “Closed Form Soluation for minimum Conduction Loss Modulation of DAB Converters,” IEEE Trans. Power Electronics, vol. 27, no 1, Jul. 2012.
[30] F. Krismer, and J. W. Kolar, “Efficiency-Optimized High-Current Dual Active Bridge Converter for Automorive Applications,” IEEE Trans. Industrial Electronics, vol. 59, no 7, Jul. 2012.
[31] Mohan, Undeland, and Robbins, “Power Electronics-Third Edition.”

[32] Ferrite cores for power supply datasheet, JFE-EE.
[33] 王信雄，”訓練課程-切換式電源的磁性元件:原理、設計與應用”，國立清華大學電機系先進電源科技中心，中華民國93年12月6日。
[34] F. Krismer, and J. W. Kolar, “Accurate Power Loss Model Derivation of a High-Current Dual-Active-Bridge Converter for an Automorive Application,” IEEE Trans. Industrial Electronics, vol. 57, no 3, Jul. 2010.
[35] Patel, Hasmukh S., Hoft, and Richard G. “Generalized Techniques of Harmonic Elimination and Voltage Control in Thyristor Inverters: Part I: Harmonic Elimination,” Industry Applications, IEEE Trans. on, vol. IA-9, Issue 3, May 1973 page 310-317.