本論文以TMS320F240數位訊號處理器為基礎，修正標準正弦脈波寬度分佈於具有整流性負載之變流器上，達到改善電力品質之目的。對於由標準正弦波寬調變控制的變流器而言，當負載型態為整流性負載時，由於有濾波器儲能不足的問題，會導致變流器輸出電壓波形產生畸變。本文藉由記錄過去的誤差資訊，來適當修正標準正弦脈波寬度分佈，避免濾波器儲能不足之問題，以使變流器輸出電壓波形為一正弦波形，降低總諧波形失真。並有規則性的調整系統輸出電壓波形，以改善整流性負載瞬間對系統汲取大量電流的現象，並以模擬及實驗結果驗證修正型正弦波寬調變控制法則。

The purpose of this thesis is to improve the power quality of the inverter with rectified load. For the inverter, when the control strategy is the original standard SPWM, the output voltage will distort because of filter’s lack of energy. Using the digital signal processor, TMS320F240 to record the past error information, a modified SPWM signal is produced to control the output voltage of the inverter. The modified control strategy can force the output voltage waveform as sinusoidal waveform, and reduce the total harmonic distortion. Furthermore, it can regularly adjust the waveform of output voltage to improve the surge current problem in the rectified load. The proposed control strategy is verified by simulation and experiment.

[1]Y. Y. Tzou, “DSP-based fully digital control of a PWM DC-AC converter for AC voltage regulation,” in Proc. IEEE PESC’95, 1995, vol. 1, pp. 138-144.
[2]T. F. Wu, H. S. Nien, C. L. Shen, and T. M. Chen, “A single-phase inverter system for PV power injection and active power filtering with nonlinear inductor consideration,” IEEE Trans. Ind. Appl., vol. 41, no. 4, pp. 1075-1083, 2005.
[3]J. Hoyo, J. Arau, and C. Aguilar, “Novel approach to design PFC converters for use in AC UPS applications,” in Proc. IEEE PESC’01, 2001, vol. 1, pp. 271-176.
[4]R. Boualaga, B. Amar, M. Ammar, and L. Loron, “Parameters and states estimation with linear quadratic regulator applied to uninterruptible power supplies(UPS),” in Proc. IECON’06, 2006, pp. 2055-2060.
[5]N. A. Rahim, S. Mekhilef, and Z. Islam, “A new approach for harmonic compensation using single-phase hybrid active power filter,” in Proc. IEEE TENCON’05, 2005, pp.1-5.
[6]M. Chen, Z. Qlan, and X. Yuan, “The analysis of the characteristics of the inverter with rectifier load using a nonlinear rectifier model,” in Proc. IEEE PESC’06, 2006, pp.1-6.
[7]梁適安，交換式電源供應器之理論與實務設計，全華科技圖書股份有限公司，2001。
[8]N. Mohan, T. M. Undeland, and W. P. Robbins, “Power Electronics,” in plastics 3rd ed., New York: John Wiley & Sons, Inc., 2003.
[9]A. I. Maswood, “A switching loss study in SPWM IGBT inverter,” in Proc. IEEE PECon’08, 2008, pp. 609-613.
[10]R. Panda and R. K. Tripathi, “A novel sine wave inverter with PWM DC link,” in Proc. IEEE ICIIS’08, 2008, pp. 1-5.
[11]A. S. Sedra, and K. C. Smith, “Microelectronic circuits,” in plastics 4th ed., New York: Oxford, 1998.
[12]M. Izhar, C. M. Hadzer, S. Masri, and S. Idris, “A study of the fundamental principles to power system harmonic,” in Proc. PECon’03, 2003, pp. 225-232
[13]F. Bertling and S. Soter, “Improving grid voltage quality by decentral injection of current harmonics,” in Proc. IEEE IECON’05, 2005, pp. 2535-2537.
[14]M. H. Rashid, “Power electronics: circuits, devices, and applications,” in plastics 3rd ed., New Jersey: Prentice Hall, 2004.
[15]D. Li and J. Tian, “A novel active power filter for the voltage-source type harmonic source,” in Proc. ICEMS’08, 2008, pp. 2077-2080.
[16]Z. Yang and P. C. Sen, “Analysis of a novel bidirectional DC-to-AC inverter,” IEEE Trans. Circuits Syst. I, Fundam. Theory Appl., vol. 47, no. 5, pp.747-757.
[17]TMS320C24x DSP Controllers CPU, System,and Instruction Set, vol. 1, Texas Instruments Inc., 1997.
[18]TMS320C24x DSP Controllers peripheral Library and Specific Devices, vol. 2, Texas Instruments Inc., 1997.
[19]TMS320C1x/C2x/C2xx/C5x Assembly Language Tools User’s Guide, Texas Instruments Inc., 1995.
[20]L. Mihalache, “DSP control method of single-phase inverters for UPS applications,” in Proc. IEEE APEC’02, 2002, vol. 1, pp. 590-596.
[21]W. Yao, C. Zheng, M. Chen, and Z. Qian, “Analysis and Research of a Multiple-loop control strategy for single-phase UPS inverters,” in Proc. PEDS’05, 2005, vol. 1, pp. 628-632.
[22]黃澄儀，應用DSP於變流器非線性負載特性之鑑別，國立成功大學電機工程研究所碩士論文，1999。
[23]許書豪，應用數位信號處理器之數位式波寬調變變流器，國立成功大學電機工程研究所碩士論文，1997。
[24]陳榮泰，單相三線式數位化光伏能量轉換系統，國立成功大學大學電機工程研究所碩士論文，2001。
[25]W. Pan, D. Pommerenke, S. Xu, and J. Jia, “PCB ground fill design guidelines for radiated EMI,” in Proc. IEEE EMC’08, 2008, pp. 1-6.
[26]岡村迪夫著，陳連春譯，運算放大器設計應用鐵則，建興出版社，1995。
[27]李世興，詳解EMC觀念與對策，全華科技圖書股份有限公司，2000。
[28]楊克俊，電磁相容原理與設計技術，全華科技圖書股份有限公司，2006。
[29]S. A. Saleh and M. A. Rahman, “Discrete time-based model of the sinusoidal pulse width modulation technique,” in Proc. IEEE IECON’05, 2005, pp. 1082-1087.
[30]龔應時、陳建武、徐永松，TMS320F/C24x DSP控制器原理與應用，滄海書局，2001。
[31]W. Wei, S. K. Panda, and J. X. Xu, “Control of high performance DC-AC inverters using iterative learning control,” in Proc. IEEE TENCON’04, 2004, vol. 4, pp. 132-135.
[32]K. Zhang, Y. Kang, J. Xiong, H. Zhang, and J. Chen, “Repetitive waveform correction technique for CVCF-SPWM inverters,” in Proc. IEEE PESC’00, 2000, vol. 1, pp. 153-158.