本文旨在分析及製作風力發電系統之功率轉換器。三相永磁式同步發電機經由交流-直流-交流功率轉換器將風力發電所產生之變動電壓及頻率轉換為固定電壓及頻率之三相電源。本文採用成本低且容易實現之半控型交流-直流功率轉換器做為發電機側之功率轉換器。當風速較低時，採用三臂型半控型交流-直流功率轉換器，提高輸出電壓；當風速較高時，採用六臂型半控型交流-直流功率轉換器，維持直流鏈電壓。市電側採用三相直流-交流功率轉換器，將發電機之功率轉換為電能，與市電併網。
本系統使用套裝軟體Matlab-Simulink/Simpower作整體的模擬，其中三臂或六臂型半控型交流-直流功率轉換器、三相直流-交流功率轉換器及其控制策略，以作為整體系統實作之依據。本系統採用德州儀器公司之數位信號處理器(TMS320F2812)為控制核心，系統控制策略皆由軟體程式完成，不但減少硬體電路成本，並增加系統運作可靠度。本文已完成三臂及六臂型半控型交流-直流功轉換器的實體製作，容量約280W的市電併網實測結果，其效率為84%。

The thesis presents the analysis and design of power converters for wind generators. The system consists of three-phase permanent–magnet synchronous generator, rectifier and inverter, which can transfer the generator power from varying-voltage and varying-frequency to 60 Hz three-phase grid. The proposed system uses Matlab-Simulink/Simpower to simulate maximum power-point tracking, three-leg and six-leg half-controlled rectifier and inverter. The simulated results obtained serve as the basis for system implementation and performance evaluation.
The system uses half-controlled ac-dc power converter which is low-cost and realized easily to become the generator side power converter. When the wind speed is low, the ac-dc power converter uses three-leg half-controlled structure that can raise the dc-link voltage. Whereas, when the wind speed is high, the ac-dc power converter uses three-phase, six-leg half-controlled converter to keep dc-link voltage lying within the constant range. The three-phase inverter is used on load side that can provide the generator power to grid.
A high-performance and low-cost digital signal processor TMS320F2812 is used to control the power converters. An experimental system is built. The power converter supplies 280W with the corresponding efficiency of 84 % using six-leg half-controlled topology.

[1] E. H. Ismail and R. Erickson, “Single-Switch 3φ PWM Low Harmonic Rectifiers,” IEEE Transactions on Power Electronics, vol. 11, no. 2, pp. 338-346, (1996).
[2] 曾兆利，以數位信號處理器為基礎之永磁式同步發電機功率控制系統之研製，國立台灣科技大學電機工程技術研究所碩士論文，民國九十年。
[3] Y. Jang and M. M. Jovanovic, “A Comparative Study of Single-Switch, Three-Phase, High-Power-Factor Rectifiers,” IEEE Transactions on Industry Applications, vol. 34, no. 6, pp. 1327-1334, (1998).
[4] 蘇家瑋，三相昇壓型整流器之永磁式同步電動機驅動器之研製，國立台灣科技大學電機研究所碩士論文，民國九十二年。
[5] 何昆哲，以數位信號處理器為基礎之小型風力發電系統研製，國立台灣科技大學電機研究所碩士論文，民國九十六年。
[6] J. A. M. Bleijs, “Continuous Conduction Mode Operation of Three-Phase Diode Bridge Rectifier With Constant Load Voltage,” IEEE-PESC Conference Record, vol. 152, issue. 2, pp. 359-368, (2005).
[7] 蘇長成，風力發電系統之功率轉換器研製，國立台灣科技大學電機工程技術研究所碩士論文，民國九十七年。
[8] J. Kikuchi and M. D. Manjrekar and T. A. Lipo, “Complementary Half Controlled Three Phase PWM Boost Rectifier for Multi-DC-Link Applications,” IEEE-APEC Conference Record, vol. 1, pp. 494-500, (2000).
[9] J. Kikuchi and M. D. Manjrekar and T. A. Lipo, “Performance Improvement of Half Controlled Three Phase PWM Boost Rectifier,” IEEE-PESC Conference Record, vol. 1, pp. 319-324, (1999).
[10] 陳達賢，直驅式無刷直流電動機驅動系統之研製，國立台灣科技大學電機工程研究所碩士論文，民國九十四年。
[11] 陳明宏，交流-直流-交流功率控制器於三相雙繞組永磁式同步風力發電機系統之應用，國立台灣科技大學電機工程研究所博士論文，民國九十六年。
[12] D. Panda and T. A. Lipo, “A Half-Power Rating Improved 3-Phase Six-Switch Boost Rectifier Using Two Half Controlled Configurations with a Common DC Bus,” IEEE Power Electronics Specialist Conference, vol. 3, pp. 1069-1074, (2003).
[13] 高永昌，全橋半控型功率轉換器於風力發電系統之應用，國立台灣科技大學電機工程研究所碩士論文，民國九十八年。
[14] A. B. Raju, K. Chatterjee and B. G. Fernandes, “A Simple Maximum Power Point Tracker for Grid Connceted Variable Speed Wind Energy Conversion System with Reduced Switch Count Power Converter,” IEEE-PESC Conference Record, vol. 2, no. 1, pp. 748-753, (2003).
[15] R. Datta, V. T. Ranganathan, “A Method of Tracking The Peak Power Points for a Variable Speed Wind Energy Conversion System,” IEEE Transactions on Energy Conversion, vol. 18, issue. 1, pp. 163-168, (2003).
[16] 于俊傑，風力發電最大功率追蹤技術之研究，中原大學電機工程研究所碩士論文，民國九十二年。
[17] E. Koutroulis and K. Kalaitzakis, “Design of a Maximum Power Tracking System for Wind-Energy-Conversion Applications,” IEEE Transactions on Industry Electronics, vol. 53, issue. 2, pp. 486-494, (2006).
[18] 王建斌，風力發電系統最大功率追蹤方法之研究，中原大學電機工程研究所碩士論文，民國九十三年。
[19] 劉文斌，以數位信號處理器為基礎之風力驅動永磁式同步發電機最大功率追蹤控制策略研究，聖約翰技術學院電機工程研究所碩士論文，民國九十二年。
[20] 王健宇，風力發電系統之分析及模擬，國立台灣科技大學電機工程研究所碩士論文，民國九十七年。
[21] C. Hua, J. Lin and C. Shen, “Implementation of a DSP-Controlled Photovoltaic System with Peak Power Tracking,” IEEE Transactions on Industrial Electronics, vol. 45, issue. 1, pp. 99-107, (1998).
[22] A. I. Bratcu, I. Munteanu, E. Ceanga and S. Epure, “Energetic Optimization of Variable Speed Wind Energy Conversion Systems by Extemum Seeking Control”, The International Conference on Computer as a tool , pp. 2536-2541, (2007).
[23] J. H. R. Enslin, “Maximum Power Point Tracking: a Cost Saving Necessity in Solar Energy Systems,” Conference of IEEE IECON, vol. 2, pp. 1073-1077, (1990).
[24] 陳家宏，太陽能電池最大功率點追蹤之設計與製作，淡江大學電機工程研究所碩士論文，民國九十年。
[25] H. Li, K. L. Shi and P. G. McLaren, “Neural-Network-Based Sensorrless Maximum Wind Energy Capture with Compensated Power Coefficient” , IEEE Transactions on Industry Applications, vol. 41, issue. 6, pp. 1548-1556, (2005).
[26] H. Li, M. Steurer, K. L. Shi, S. Woodruff and D. Zhang, “Development of a Unified Design, Test, and Research Platform for Wind Energy Systems Based on Hardware-In-The-Loop Real-Time Simulation,” IEEE Transactions on Industrial Electronics, vol. 53, issue. 4, pp. 1144-1151, (2006).
[27] 盧彥良，應用徑向基底類神經網路於風力發電系統之最大功率追蹤，中山大學電機工程研究所碩士論文，民國九十七年。
[28] 溫宗修，風力發電機之混合式最大功率追蹤法，大同大學電機工程研究所碩士論文，民國九十八年。
[29] 錢世昌，小型永磁式同步風力發電機市電併聯系統之研製，清雲科技大學電機工程研究所碩士論文，民國九十六年。
[30] 林君達，低噪音風能轉換系統用永磁式同步發電機之設計及控制，國立台灣科技大學電機工程研究所碩士論文，民國九十八年。
[31] 康宗仁，永磁式同步發電機之風力發電功率控制系統之研製，國立台灣科技大學電機工程研究所碩士論文，民國九十四年。
[32] A. Timbus, R. Teodorescu, F. Blaabjerg and M. Liserre, “Synchronization Methods for Three Phase Distributed Power Generation Systems. An Overview and Evaluation” IEEE-PESC Conference Record, pp. 2474-2481, (2005).
[33] M. Karimi-Ghartemani and M. R. Iravani, “A Method for Synchronization of Power Electronic Converters in Polluted and Variable-Frequency Environments,” IEEE Transactions on Power Systems, vol. 19, issue. 3, pp. 1263-1270, (2004).
[34] A. B. Raju, B. G. Fernandes, K. Chatterjee, “A UPF Power Conditioner with Maximum Power Point Tracker for Grid Connected Variable Speed Wind Energy Conversion System” IEEE International Conference on Power Electronics Systems and Applications, pp. 107-112, (2004).
[35] TMS320x281x System Control and Interrupts Reference Guide, Texas Instruments Co., (2006).
[36] TMS320x281x Event Manager Reference Guide, Texas Instruments Co., (2006).
[37] TMS320F28xx DSP Controllers CUP, System, and Instruction Set vol. 1 & vol. 2, Texas Instruments (2004).
[38] 黃煥巽，並聯型全橋式直流-直流功率轉換器之研製，國立台灣科技大學電機工程研究所碩士論文，民國九十七年。