本論文旨在研製一燃料電池發電系統之直流－直流功率轉換器，係將燃料電池之低壓輸出昇壓為高壓直流輸出電壓。此系統需具備功率補償的能力，故使用蓄電池作為燃料電池發電系統之功率調節使用。若負載變動時，燃料電池發電系統須具備快速響應的能力。本系統使用全橋式直流－直流功率轉換器作為燃料電池的功率轉換器，並使用昇壓/降壓直流截波器作為蓄電池充放電的轉換器。本論文使用滑動模式控制器作為燃料電池發電系統之定電壓控制器，並使用數位信號處理器DSP TMS320F2812作為控制核心，其控制策略皆由C語言之程式完成之。
實驗結果顯示，本論文之全橋式功率轉換器與昇壓/降壓直流截波器並聯供電時，輸出電壓可達340V以上，輸出功率約為800W，同時，當燃料電池之輸出電壓因負載而改變時，本論文所提出之滑動模式控制器能使直流鏈電壓具有較快速的響應及強健性。

The purpose of the thesis is to present a method of producing a DC/DC power converter of fuel cell generation systems, with boosting fuel cells low DC voltage to high DC output voltage. The systems must have the capacity of power compensating. Thus, we use a battery bank as an adjusting use of the fuel cell generation systems. Once the loading varies, the systems must have the capacity of robust responses.
The systems use a full-bridge DC/DC converter for the fuel cells, and boost/buck DC chopper as the converter of the battery’s charging and discharging. In the thesis, we use a sliding-mode controller as the voltage controller of the DC bus, and the digital signal processor (DSP TMS320F2812) as the control unit, which controlling strategy is accomplished by the C programming.
The result shows that, when the full-bridge power converter is joined with boost/buck DC chopper in parallel, it can serve a DC voltage of over 340V and a power of 800W, meanwhile, as output voltage of the fuel cells changes due to loadings, the sliding-mode controller can cause more rapid responses and robustness to the DC bus voltage source.

[1] J. M. Correa, F. A. Farret, L. N. Canha, and M. G. Simoes, “An Electrochemical-Based Fuel-Cell Model Suitable for Electrical Engineering Automation Approach,” IEEE Transactions on Industrial Electronics, Vol. 51, No. 5, pp. 1103–1112, 2004.
[2] J. M. Correa, F. A. Farret, V. A. Popov, and M. G. Simoes, “Sensitivity Analysis of the Modeling Parameters Used in Simulation of Proton Exchange Membrane Fuel Cells,” IEEE Transactions on Energy Conversion, Vol. 20, No. 1, pp. 211 – 218, 2005.
[3] C. Wang, M. H. Nehrir, and S. R. Shaw, “Dynamic Models and Model Validation for PEM Fuel Cells Using Electrical Circuits,” IEEE Transactions on Energy Conversion, Vol. 20, No. 2, pp. 442–451, 2005.
[4] V. Garcia, M. Rico, J. Sebastian, M. M. Hernando, and J. Uceda, “An Optimized DC-to-DC Converter Topology for High-Voltage Pulse-Load Applications,” Power Electronics Specialists Conference, Vol. 2, pp. 1413 – 1421, 1994.
[5] S. Sato, S. Moisseev, and M. Nakaoka, “Reversed-output current -assisted ZVS phase-shift PWM DC-DC power converter using synchronous rectifier,” IEE Proceedings on Electric Power Applications, Vol. 152, No. 2, pp. 423 – 428, 2005.
[6] Y. Song and P. N. Enjeti, “A New Soft Switching Technique for Bi-directional Power Flow, Full-Bridge DC-DC Converter,” Industry Applications Conference, Vol. 4, pp. 2314–2319, 2002.
[7] L. G. Shiau and J. L. Lin, “Direct and indirect SMC Control Schemes for DC-DC Switching Converters,” Proceedings of the 36th SICE Annual Conference, pp. 1289–1294, 1997.
[8] M. J. Schutten and D. A. Torrey, “Improved Small-Signal Analysis for the Phase-Shifted PWM Power Converter,” IEEE Transactions on Power Electronics, Vol.18, No. 2, pp. 659–669, 2003.
[9] H. Y. Lu, J. G. Zhu, and S. Y. R. Hui, “Experimental Determination of Stray Capacitances in High Frequency Transformers,” IEEE Transactions on Power Electronics, Vol. 18, No. 5, pp. 1105–1112, 2003.
[10] W. Friede, S. Rael, and B. Davat, “Mathematical Model and Characterization of the Transient Behavior of a PEM Fuel Cell,” IEEE Transactions on Power Electronics, Vol. 19, No. 5, pp. 1234–1241, 2004.
[11] Z. Azzouz, A. Foggia, L. Pierrat, and G. Meunier, “3D Finite Element Computation of the High Frequency Parameters of Power Transformer Windings,” IEEE Transactions on Magnetics, Vol. 29, No. 2, pp. 1407– 1410, 1993.
[12] C. Denver and M. Norman, “ Model of High Temperature PEM Fuel Cells Using FELAB,” COMSOL Multiphysics Conference 2005.
[13] F. Alexnadru, F. Hirohito, Y. Yukihiro, and K. Yoshitsugu, “Fuel-Cell Parameter Estimation and Diagnostics,” IEEE Transactions on Energy Conversion, Vol. 20, No. 3, pp. 668–675, 2005.
[14] E. Santi, D. Franzoni, A. Monti, D. Patterson, F. Ponci, and N. Barry, “A Fuel Cell Based Domestic Uninterruptible Power Supply,” Applied Power Electronics Conference and Exposition, Vol. 1, pp. 605–613, 2002.
[15] A. J. Forsyth, I. K. Ellis, and M. Moller, “Adaptive control of a high -frequency DC-DC converter by parameter scheduling,” Electric Power Applications, Vol. 146, No. 4, pp. 447–454, 1999.
[16] W. Chen, F. C. Lee, M. M. Jovanovic, and J. A. Sabate, “A Comparative Study of a Class of Full Bridge Zero-Voltage-Switched PWM Converters,” Applied Power Electronics Conference and Exposition, Vol. 2, No. 0, Part 2, pp. 893–899, 1995.
[17] Y. Jang and M. M. Jovanovic, “A New Family of Full-Bridge ZVS Converters,” IEEE Transactions on Power Electronics, Vol. 19, No. 3, pp. 701 – 708, 2004.
[18] M. C. Caponet, F. Profumo, and A. Tenconi, “Cost Effective Saturable Inductor for Zero Voltage Switching–Zero Current Switching DC/DC Power Conditioning Converter for Fuel Cells,” Industry Applications Conference, Vol. 3, pp. 1576 – 1581, 2003.
[19] 林峰源，“燃料電池發電系統之直流轉換器研製”，國立台灣科技大學電機工程研究所碩士論文，民國九十五年。
[20] 余景洲，“數位控制之多臂式直流-直流功率轉換器於燃料電池供電系統之應用” ，國立台灣科技大學電機工程研究所碩士論文，民國九十五年。
[21] 劉志岷，“高電壓輸出相移式全橋轉換器之分析與設計” ，國立台灣科技大學電子工程研究所碩士論文，民國九十五年。
[22] C. Liu, A. Johnson and J.-S. Lai, “A novel three-phase high-power soft switched DC/DC converter for low voltage fuel cell applications ,” APEC, Vol. 3, pp.1365-1371, 2004.
[23] “ADS8364 250kHz, 16-Bits, 6-channel simultaneous sampling analog-to-digital converter ,” TI Company, 2002.
[24] 盧明智、黃敏祥，“OP AMP 應用 實驗模擬”，全華出版社，1995。
[25] 黃鎮江，“燃料電池（修訂版）”，全華出版社，2005。
[26] T. L. Chern, J. Chang, C. H. Chen, and H. T. Su, “Microprocessor-based modified discrete integral variable-structure control for UPS,” IEEE Transactions on Industrial Electronics, Vol. 46, No. 2, pp. 340-348, 1999.
[27] “Application Note HV Floating MOS-Gate Driver ICs,” International Rectifier Company, 2007.