本文提出一種應用於深海探勘船之電源供應系統，包括：一組350 V/300 V之直流/直流轉換器、一組350 V/24 V之直流/直流轉換器及一組四極式導電度計驅動系統。所提之直流/直流電源轉換器採用全橋LLC之主電路架構，並使用兩模組並聯以增加其輸出功率，其所使用之數位控制器，除了讀取電壓回授、電流回授之取樣值，並計算其變動量，除了藉由調變操作頻率使輸出電壓達到預定規格，並可藉由調變責任週期使兩電源模組之輸出電流達到平衡。其次，本文利用諧振電感、諧振電容及變壓器之寄生元件形成諧振電路，在預設的負載條件下皆可以達到零電壓切換，以減少功率開關之切換損失。最後，在實際的測試結果當中，系統之整體效率均達80 %以上，最高效率可達95.7 %。
再者，導電度計驅動系統提供一組1.2 VDC之電源給四極式導電度計，經由類比/數位轉換器讀取由電流電極流出之對應電流值，並透過電壓電極讀取電壓回授取樣值以進行轉換，將轉換後之導電度數值透過串列通信介面(serial communication interface, SCI)，經由RS-232介面傳送至探勘船以供讀取及儲存海水之導電度資料。

This thesis is about a power supply system applied in deep sea exploration ship, including a 350V/300V DC/DC converter, a 350V/24V DC/DC converter and a driver system of 4-polar conductivity meter. The DC/DC converter is structured by Full-Bridge LLC circuit with two paralleled module to increase the output power up to 2 kW. The digital controller captures the voltage, current feedback and calculates the variations. In order to stabilize the output voltage, the frequency modulation technique is used to reach the required level, and duty control is employed to balance the output current of two power module. Also, the thesis uses the resonant inductor, resonant capacitor and parasitic components in transformer to form a resonant tank. It can achieve the zero-voltage switching to decrease the power loss of switching under desired load conditions. Finally, the testing result shows that the efficiency of the whole system is above 80 %, and the maximum is up to 95.7 %.
Moreover, a 24V/1.2V DC/DC converter is implemented to drive the four-polar conductivity meter. We can sense the current of the current electrode, and the voltage of the voltage electrode and convert these signals to digital codes by ADC. After that, these converted information will be delivered throughout SCI (serial communication interface) and be sent to the ship for reading and storing the conductivity of seawater.

[1]T. Xu, J. Dunbar, A. Gunnell, C. Lutken, P. Higley, and M. Lagmanson, “Seafloor direct-current resistivity techniques for deep-marine, near-bottom gas-hydrate investigation,” Symposium on the Application of Geophysics to Engineering and Environmental Problems, 2015, pp. 405-431.
[2]T. Goto, J. Takekawa, H. Mikada, T. Kasaya, H. Machiyama, K. Iijima, and K. Sayanagi, “Resistivity survey of seafloor massive sulfide areas in the Iheya north area, off Okinawa, Japan,” Proceedings of the 11th SEGJ International Symposium, Yokohama, Japan, 18-21 November 2013, pp. 298-301.
[3]張簡士琨，粘孝先，黃川桂，陳頌謙，劉佳豪，田佑仁，詹智皓，“具低輸出電流漣波之LLC諧振式直流-直流電源轉換器的研製”，建國科技大學電機系，彰化師範大學工教系，聯德電子公司。
[4]林錦宏，張家瑞，黃正斌，“LLC電源轉換器之功率電晶體選用”，台灣英飛凌科技(Infineon)，電子工程專輯網站，2014年。
[5]W. J. Cha, J. M. Kwon and B. H. Kwon, “Highly Efficient Asymmetrical PWM Full-Bridge Converter for Renewable Energy Sources,” in IEEE Transactions on Industrial Electronics, vol. 63, no. 5, pp. 2945-2953, May 2016.
[6]李菊，阮新波，“全橋LLC諧振變換器的混合式控制策略”，南京航空航天大學航空電源重點實驗室，電工技術學報，第28卷第4期，2013年4月。
[7]S. Abdel-Rahman, “Resonant LLC Converter : Operation and Design 250W 33Vin 400Vout Design Example,” Infineon Technologies North America (IFNA) Corp, 2012.
[8]G. C. Hsieh, C. Y. Tsai and S. H. Hsieh, “Design Considerations for LLC Series-Resonant Converter in Two-Resonant Regions,” 2007 IEEE Power Electronics Specialists Conference, Orlando, FL, 2007, pp. 731-736.
[9]B. Yang, “Topology Investigation for Front End DC/DC Power Conversion for Distributed Power System,” Ph. D. Dissertation, Virginia Tech, 12 September 2003.
[10]葉為忠，張建智，黃然，洪啟哲，游云辰，“既有RC結構物鋼筋腐蝕量測技術及評估準則之研究”，國立台灣海洋大學，內政部建築研究所委託研究報告，民國九十九年十二月。
[11]M. A. Anderson, A. L. Cudero and J. Palma, “Capacitive Deionization as an Electrochemical Means of Saving Energy and Delivering Clean Water. Comparison to Present Desalination Practices: Will It Compete?” Electrochim Acta, Vol. 55, 2010, pp. 3845-3856.
[12]S. Porada, R. Zhao, A. van der Wal, V. Presser, P.M. Biesheuvel, “Review on the science and technology of water desalination by capacitive deionization,” In Progress in Materials Science, Volume 58, Issue 8, 2013, pp. 1388-1442, ISSN 0079-6425.
[13]綜合企劃組，“水再生利用技術開發－談「低耗能電容去離子技術」”，水利署電子報第0197期，2016年10月21日。
[14]Infineon, “CoolMOS™ benefits in both hard and soft switching SMPS topologies,” June 2016.
[15]簡聰富，“數位控制系統 VS 類比控制系統”，南台科技大學電機工程系。
[16]Texas Instruments, “C2000 Microcontrollers Development Tools User Guide (Rev. C),” 2015.
[17]林哲宇，陳松智，邱煌仁，羅有綱，“450 W多組輸出備援式交流/直流轉換器研製”，國立台灣科技大學電子工程系，中華民國第三十一屆電力工程研討會，2010年12月3 - 4日。
[18]黃振國，曾瑋辰，江炫樟，“具備援及熱插拔功能之多模組並聯均流LLC諧振轉換器之研製”，建國科技大學電機工程系，國立聯合大學電機工程系，中華民國第三十一屆電力工程研討會，2010年12月3 - 4日。
[19]J. Shi, T. Liu, J. Cheng and X. He, “Automatic Current Sharing of an Input-Parallel Output-Parallel (IPOP)-Connected DC–DC Converter System With Chain-Connected Rectifiers,” IEEE Transactions on Power Electronics, vol. 30, no. 6, pp. 2997-3016, June 2015.
[20]Texas Instruments, TMS320F28035 datasheet, “TMS320F28030/28031/28032/ 28033/28034/28035 Piccolo Microcontrollers datasheet (Rev. K),” June 2016.
[21]趙修科，“開關電源中磁性元器件”，南京航空航天大學自動化學院，2004年8月。
[22]美台磁材有限公司，ETD-5922，“ETD, EER, EC, EI, EEF (EFD) EFC CORES A&T”。
[23]Core-ETD5922 datasheet“Product Data Approval Sheet,” 16 January 2013.
[24]Texas Instruments, μA741, “GENERAL-PURPOSE OPERATIONAL AMPLIFIERS,” 1970-2000.
[25]Allegro MicroSystems, ACS713, “Fully Integrated, Hall Effect-Based Linear Current Sensor IC with 2.1 kVRMS Isolation and a Low-Resistance Current Conductor,” 2006-2017
[26]SILICON LABS, Si8233, “0.5 AND 4.0 AMP ISO DRIVERS (2.5 AND 5 KVRMS),” 2015.
[27]Texas Instruments, “TMS320x2802x, 2803x Piccolo Analog-to-Digital Converter (ADC) and Comparator,” 2008-2009.
[28]Chroma, PROGRAMMABLE AC SOURCE MODEL 61605, “可編程交流電源供應器 61505 使用手冊”, January 2010.
[29]Chroma, PROGRAMMABLE DC ELECTRONIC LOAD MODEL 63204A, “Chroma 63200A series Data Sheet,” April 2016.
[30]Tektronix TDS3014B, “Tektronix TDS3000 Series Digital Phosphor Oscilloscopes”.
[31]YOKOGAWA WT1800, “WT1800 Precision Power Analyzer USER’S MANUAL,” February 2011.
[32]O. Kirshenboim and M. M. Peretz, “Combined Multi-Level and Two-phase Interleaved LLC Converter with Enhanced Power Processing Characteristics and Natural Current Sharing," IEEE Transactions on Power Electronics, vol. PP, no. 99, pp. 1-1.