本文旨在研究諧波注入(Harmonic Injection)技術應用於功率因數修正器，而諧波注入修正電路目前以主動式諧波注入作為主流；本文使用之基本架構為三相全波整流器，在電路上則使用單開關昇壓式電路，因單開關三相昇壓式整流器以元件數少、控制電路簡單、相對的低電流失真獲得工業上廣泛的應用；在此電路上加入產生諧波注入電路設計，經由注入六次諧波訊號改善電流波形失真。本文藉由電腦輔助電子電路模擬軟體針對各項電路架構進行建模，並分析其電路架構對輸入電流之總諧波失真的影響，藉以改良電路架構將總諧波失真降低，並佐以實驗證明其可能性；而後考慮電路可能產生之問題，如開關元件之電流限制，嘗試改進方法，增加此功率因數修正電路的可靠性。

The objective of this study is to employ harmonic injection technique in the power factor corrector (PFC) for AC/DC power supplies. Since active harmonic injection technique is still the primary method among the power factor corrector methods when harmonic injection is adopted, this thesis would mainly focus on the active methodology. The basic structure of the power circuit is based upon a three-phase rectifier with a single-switch boost topology. The single-switch three-phase boost rectifier has been widely applied in the industry because of its structure simplicity, low total cost, and reasonably low total harmonic distortion. In the rectifier design, harmonic injection circuits are employed for reduction of ac current distortion by injecting the sixth order harmonic feed-forward signals. In this study, the PFC circuits are designed and analyzed by making use of a simulation package for power electronics; and, the rectifier circuit parameters influencing the total harmonic distortion are investigated for retuning the circuit parameters. Moreover, experimental results are employed for verification of simulated parameter analysis. In conclusions, with consideration in possible operation problems such as rated current capacity of the switches, the reliability of the PFC circuit is improved throughout the study.

[1]Z. Yang, P. C. Sen, “Recent Developments in High Power Factor Switch-Mode Converters”, IEEE Canadian Conference on Electrical and Computer Engineering, vol.2 , pp. 477-480, May 1998.
[2]J. Zhang, M. M. Jovanovic, F. C. Lee, “Comparison between CCM Single-Stage and Two-Stage Boost PFC Converters”, APEC Fourteenth Annual, vol.1, March 1999.
[3]Qihong Huang, F. C. Lee, “Harmonic Reduction in A Single-Switch, Three-Phase Boost Rectifier with High Order Harmonic Injected PWM”, IEEE PESC, Vol. 2, pp 1266-1271, June 1996.
[4]Predrag Pejovic, “Two Three-Phase High Power Factor Rectifiers that Apply The Third Harmonic Current Injection and Passive Resistance Emulation”, IEEE Transactions on Power Electronics, vol. 15, pp. 1228-1240, November 2000.
[5]H. S. Athab, S. M. Bashi, N. Mariun, S. B. M. Noor, “Harmonic Reduction in A Boost-Star Three-Phase Single Switch Power Factor Correction Circuit Operating in Discontinuous Conduction Mode”, SCOReD, pp. 218-223, August 2003.
[6]Zhanlong Li, Yupeng Tang, “Simulated Study of Three-Phase Single-Switch PFC Converter with Harmonic Injected PWM by Matlab”, IPEMC, Vol. 2, pp. 1-5, August 2006.
[7]I. Ashida, J. Itoh, “A Novel Three-Phase PFC Rectifier Using a Harmonic Current Injection Method”, Power Conversion Conference, pp. 1302-1307, April 2007.
[8]Predrag Pejovic, Yasuyuki Nishida, “A Current Injection Based Twelve-Pulse Rectifier”, PESC, pp. 3603-3609, June 2008.
[9]J. Sebastian, M. Jaureguizar, J. Uceda, “An Overview of Power Factor Correction in Single-Phase Off-Line Power Supply Systems” 20th International Conference on Industrial Electronics, Control and Instrumentation, vol.3, pp1688–1693 , Sept. 1994.
[10]L. Wuidart, “Understanding Power Factor”, STMicroelectronics Application Note AN824.
[11]A. R. Parsad, P. D. Ziogas, S. Manlas, “An Active Power Factor Correction Technique for Three-Phase Diode Rectifiers”, Power Electronics Specialists Conference, 20th Annual IEEE, vol.1, pp 58-66, June 1989.
[12]Richard Zhang, Fred C. Lee, “Optimum PWM Pattern for A Three-phase Boost DCM PFC Rectifier”, Applied Power Electronics Conference and Exposition, Twelfth Annual, vol.2, pp 895-901, February 1997.
[13]Yungtaek Jang, Milan M. Jovanovic, “A Comparative Study of Single-Switch, Three-Phase, High-Power-Factor Rectifier”, Applied Power Electronics Conference and Exposition, Thirteenth Annual, vol.2, pp 1093-1099, February 1998.
[14]D. Weng, S. Yuvarajan, ”Constant-Switching-Frequency AC-DC Converter Using Second-Harmonic-Injected PWM,” IEEE Power Electronics Specialists Conf.(PESC) Record, pp 1001-1006, 1995.
[15]蘇子龍, “諧波注入法應用於單開關三相昇壓式整流器”, 國立成功大學碩士論文,2003.
[16]H. Mao, D. Boroyevich, F. C. Lee, “Novel Reduced-Order Small-Signal Model of Three-Phase PWM Rectifiers and Its Application in Control Design and System Analysis”, PESC., Vol 1,pp 556–562, June 1996.
[17]V. Vorperian,”Simplified Analysis of PWM Converter Using Model of PWM Switch, part I and part II,” IEEE Transactions on Aerospace and Electronic System, vol.26, pp.490-505, 1990.
[18]Mohan, Tore M. Undeland, William P. Robbins, Power Electronics, John Wiley & Sons, Inc., United States, 2003.
[19]Y. Jang, M. M. Jovanovic, “A Novel, Robust, Harmonic Injection Method for Single-Switch, Three-Phase, Discontinuous-Conduction-Mode Boost Rectifiers,” PESC, Vol 1, pp 469-475, June 1997.