博碩士論文 945901002 詳細資訊




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姓名 周棟國(Tung-Kuo Chou)  查詢紙本館藏   畢業系所 電機工程學系
論文名稱 單級降壓式功因修正轉換器之探索
(On the design of Single Stage Power FactorCorrection Buck Converters)
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摘要(中) 電力電子轉換器為交流與直流電源兩者之間的轉換,最常見有三大類基本轉換器:交流對直流(AC/DC) 轉換器、直流對直流(DC/DC)轉換器、及直流對交流(DC/AC)轉換器。由於電力公司所送出的是交流電源,而電子電路大多使用直流電源,幾乎在家中每個電子產品都用到交流對直流(AC/DC)轉換器,再經由降壓式直流對直流(DC/DC)轉換器將直流電源轉換到另一直流準位, 而單級式AC/DC轉換器結合功因修正與降壓電路為一體, 因此可減少產品成本、尺寸, 改善能源效率。
此論文裏,我們對單級降壓式功因修正轉換器,以Matlab/Simulink 及Saber simulator 軟體進行轉換器電路的特性模擬, 而經由對電路特性的了解, 以及對電路方塊相關的數學式子推導後,說明我們所提出電路架構與一般降壓式功因修正轉換器電路,在輸入電壓變動時,其電路系統總功率維持在一定值,不會因為系統的瞬時功率提升,而引起電器產品的總功率耗損,也因此可以達到節能省碳的目的。最後說明所提出新的輸入電流控制系統, 改善了降壓式功因修正轉換器的諧波失真,並且使得輸入電流與輸入電壓同相位,達到單一功率因數與電路輸出穩壓的目的。
摘要(英) The power electronic converter is an interface between alternating current (AC)and direct current (DC). Generally, it can be classified into three categories: AC/DC converter, DC/DC converter, and DC/AC converter. Since the power is transmitted with AC fashion, most home-electronic products should translate it to DC by two-stage solution, which consists of AC/DC converter and buck converter. In this
thesis, a single-stage solution, which integrates power factor correction (PFC) circuit and buck converter, is proposed to save cost and improve power efficiency in
comparison with two-stage solution. The feature of our proposed circuit can make the total power consumption identical while the input AC voltage is changed.
As a result,the power consumption of home-electronic products can be reduced whether the instantaneous power increases. In addition, the behavior of proposed circuit is presented with mathematical analysis, and its function is verified by the system simulation software, Matlab/Simulink and Saber simulator. Consequently, based on our proposed circuit, the harmonic distortion of power-factor buck converter is greatly
reduced, and zero phase different between input current and voltage is achieved. Furthermore, the power factor is almost approximated to 1, and the regulation of output voltage is also maintained.
關鍵字(中) ★ 功因修正
★ 切換式電源供應器
關鍵字(英) ★ PFC
★ Switching Power Supply
論文目次 第 1 章 緒論............................................... 1
1.1 研究背景................................................1
1.2 研究動機................................................2
1.3 論文架構............................................... 5
第 2 章轉換電路之Simulink 行為模組......................... 6
2.1 Matlab/Simulink 簡介................................... 6
2.2 直流-直流轉換器........................................ 8
2.3 交流-直流轉換器....................................... 20
第 3 章升壓型主動式功率因數修正電路....................... 23
3.1 具有脈寬調變控IC 的Simulink 行為模型.................. 23
3.1.1 Simulink 模組................................... 26
3.1.2 具備斜率補償升壓式電源轉換器-UC3843............. 33
3.1.3 討論............................................ 38
3.2 具有功率因數修正控制IC 的Simulink 行為模型............ 38
3.2.1 功因修正電路.................................... 40
3.2.2 Simulink 模組建立............................... 41
3.3 升壓型主動式功率因數修正電路模擬...................... 48
3.4 功率因數之計算........................................ 50
3.5 直流穩態時間.......................................... 52
3.5.1 本節討論........................................ 53
4 章降壓型主動式功率因數修正電路.......................... 54
4.1 基本降壓式功因修正電路架構............................ 54
4.2 改善後的降壓式功因修正電路架構........................ 56
4.3 降壓型主動式功率因數修正電路模擬...................... 60
第5 章結論與未來方向...................................... 67
5.1 結果.................................................. 67
5.2 未來方向.............................................. 69
參考文獻.................................................. 70
參考文獻 [1] K.-H. Liu and Y.-L. Lin,“Current waveform distortion in power factor correction circuits employing discontinuous-mode boost converters,” IEEE Power Electronics Specialists Conference, vol.2, pp.825-829, Jun. 1989.
[2] 周志敏,周紀海,紀愛華,“切換式電源,功率因數校正用, ”pp.1-5 (2005)。
[3] Texas Instruments Data sheet of UC3854,Texas Instruments, http://focus.ti.com/docs/prod/folders/print/uc3854.html,1999.
[4]“有源功率因數校正電路工作原理與應用(PFC 手冊)﹐”ON semiconductor,pp13-14,Aug.2004,http://www1.onsemi.com/tech-support.
[5] Texas Instruments Data sheet of UC3843 Texas Instrument, http://focus.ti.com/docs/prod/folders/print/uc3843.html
[6] 粱適安,“交換式電源供應器之理論與實務設計”,全華書局,民國 90 年.
[7] V. Tipsuwanporn, C. Tarasantisuk, and S. Phanphairoje,“A Matlab/Simulink tool for Power Converter Teaching – A power Factor Correction Approach,”IEEE Power Electronics and Drive Systems, vol.2, pp.1016-1020, Nov. 2003.
[8] 李宜達,”控制系統分析與設計,使用Matlab,”全華書局,2005.
[9] “視覺化建模環境,Simulink 入門與進階,” 鈦思科技,2001.
[10] R. W. Erickson, Fundamentals of Power Electronics,Kluwer Academic Publishers, 1999.
[11] Texa Instruments Data sheet of UC3843,Texas Instruments, Available at: http://fovus.ti.com/docs/prod/floders/print/UC3843a.html
[12] J.-H. Su, J.-J. Chen, C.-M. Wang, and C.-L.Chien,“Interactive Simulation and verification SIMULINK behavior models for dc-dc switching converter circuits using PWM control ICs,”IEEE PEDS , pp.1259, 2005.
[13] P.-C. Todd, “Application note: U-134 Controlled Power Factor UC3854.
[14] Correction Circuit Design,” Texas Instruments, pp.15, 1999. J.-H. Su, C.-M. Wang, and J.-D. Lee,“Computer Aided Feedback Controller Design Environment for Switching converter Circuits,” IEEE International Symposiums on Computer Aided Control Systems design , pp.208-213, Sept. 2004.
[15] G.-Y. Zhu, H. Wei, C. Iannello, and I. Batarseh,“A study of power Factor and Harmonics in switched-mode power supplies,”IEEE proceedings of the Southeastcon, pp278-283, March 1999.
[16] N. Femia and G. Spagnuolo, “ Steady-state analysis of pwm dc to dc regulators,”IEEE Transcations on Circuits and systems, pp.318-334, Jan. 2003.
[17] D. Lloyd,“Average Current Mode Control of Switching Power Supplies,”Texas Instruments Incorporated, 2001.
[18] H. Endo, T. Yamashita, and T. Sugiura,“A high-power-factor buck converter,”IEEE power Electronics Specialists conference, vol.2, pp.1071-1076, July. 1992.
指導教授 魏慶隆(Chin-Long Wey) 審核日期 2008-7-15
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