臺灣博碩士論文加值系統

準Z源換流器具備體積小、低成本與熱應力和輸入電流為連續之特性，並且能夠以單級式電路實現升壓/降壓功能與直流/交流轉換。準Z源換流器之韌體調變策略方面，空間向量脈波寬度調變(Space-Vector Pulse Width Modulation, SVPWM)技術為變頻器波形調變的主流，相較於正弦脈寬度調變(Sinusoidal Pulse Width Modulation, SPWM)技術，SVPWM有低諧波和高電壓利用率等優點，因此有文獻已將傳統SVPWM概念改良並應用於準Z源換流器上。
相較於典型之SVPWM將導通零態放置於兩臂，本文提出之新型準Z源換流器調變策略，將導通零態依照輸出弦波電壓正負半週期為區間，分別擺放於左臂開關或右臂開關，此交錯式的擺放方式可以改善典型SVPWM所造成之波形失真情形。
為了驗證所提出的方法之正確性，本文實際完成一單相交流輸出110V，頻率60 Hz，額定功率350W之單級式準Z源換流器。根據實驗結果，所提出的調變策略之轉換效率高於93.95%，相較於典型之SVPWM，所提出的方法在平均轉換效率與電壓失真率之改善為0.482%和1.125%。

Quasi-Z-source inverter (qZSI) features high compactness, low component and thermal stresses, continuous input current and the capability of simultaneously carry out both DC voltage boost and DC-AC inversion. For qZSIs, sinusoidal pulse width modulation (SPWM) method is typically applied. Comparing with SPWM, space-vector PWM (SVPWM) has advantages such as low current harmonics and high voltage utilization; hence, the traditional space-vector concept has been modified to be applicable for the qZSI in the literatures.
In this thesis, a novel SVPWM strategy for qZSIs is presented. Instead of placing the shoot-through state in both inverter legs, the proposed method generates the shoot-through state only in left/right inverter leg during the positive/negative cycle, respectively. Using this way, the voltage distortion of the conventional SVPWM qZSI can be reduced. In order to validate the correctness of the proposed methods, a single-phase 110 Vac, 60 Hz, 350 W prototyping circuit is built. According to the experimental results, the measured conversion efficiencies of the designed system are all higher than 93.95 %. Comparing with the conventional qZSI using SVPWM control, the proposed modulation technique can improve the averaged conversion efficiency and voltage distortion by 0.482% and 1.125 %, respectively.

摘要
Abstract
目錄
圖目錄
表目錄
第一章 緒論
1.1研究背景與動機
1.2文獻探討
1.3研究目的
1.4論文大綱
第二章 Z源換流器之原理與控制策略
2.1橋式換流器介紹
2.1.1半橋式換流器介紹
2.1.2 全橋式換流器介紹
2.2單相Z源換流器介紹
2.3三相SVPWM與單相SVPWM
2.3.1 三相SVPWM原理
2.3.2 單相SVPWM原理
2.3.3 盲時區間設置
2.4單相準Z源SVPWM之電壓向量動作時間計算
2.4.1單相準Z源SVPWM之區間判斷
2.4.2單相準Z源SVPWM之開關切換時序比較
第三章 單級式準Z源換流器硬體架構設計
3.1準Z源換流器介紹
3.1.1準Z源換流器電路穩態分析
3.1.2準Z源換流器之準Z阻抗參數設計
3.2緩振電路設計
3.3低通濾波器設計
3.4設計實例
第四章 單級式準Z源換流器韌體架構設計
4.1 dsPIC33FJ16GS502微處理器簡介
4.2程式設計流程介紹
4.3數位濾波器
4.3.1濾波器簡介
4.3.2 FIR與IIR濾波器
4.3.3 FIR濾波器
4.3.4 FIR濾波器設計
4.3.5 FIR數位濾波程式流程
4.3.6 FIR數位濾波器驗證
4.4數位PID控制器
4.4.1數位PID控制器原理
4.4.2數位PID控制器實現
4.5 qZSVPWM控制程式介紹
4.5.1典型之qZSVPWM [19]
4.5.2交錯式導通零態位置之qZSVPWM
4.6 qZSVPWM控制程式設計
4.7規劃導通零態程式設計
第五章 實驗結果及討論
5.1控制訊號實測波形圖
5.1.1典型之單相qZSVPWM之訊號實測波形圖
5.1.2交錯式導通零態qZSVPWM之訊號實測波形圖
5.2實際量測數據
第六章 結論與未來展望
6.1結論
6.2未來展望
參考文獻
誌謝

[1] Renewables 2016 Global Status Report Available at:
http://www.ren21.net/.
[2] Fang Zheng Peng, “Z-Source Inverter” IEEE Trans. Ind. App.,vol. 39, no. 2, pp. 504-510, Mar. 2003.
[3] Fang Z. Peng, Miaosen Shen, and Zhaoming Qian, “Maximum Boost Control of the Z-Source Inverter” IEEE Trans. Power Electron., vol. 20, no. 4, pp.833-838, Jul. 2005.
[4] 許皓鈞，「以FPGA為基礎的交流馬達空間向量脈寬調變IC之研製」國立交通大學控制工程研究所碩士學位論文，民國85年6月。
[5] Yushan Liu, Baoming Ge1 and Haitham Abu-Rub, “Theoretical and experimental evaluation of four space vector modulations applied to quasi-Z-source inverters” IET Power Electron., vol. 6, no. 7, pp. 1257–1269, 2013.
[6] Qin Lei, Dong Cao, Fang Zheng Peng, “Novel loss and harmonic minimized vector modulation for a Current-Fed Quasi-Z-Source Inverter in HEV Motor Drive Application” IEEE Trans. Power Electron., vol. 29, no. 3, pp1344-1357, Mar. 2014.
[7] Yuyao He, Yuhao Xu and Jinping Chen, “New Space Vector Modulation Strategies to Reduce Inductor Current Ripple of Z-Source Inverter” IEEE Trans. Power Electron., Apr. 2017.
[8] Balaji Barathy, Anbukumar Kavitha and Tamilarasu Viswanathan, “Effective space vector modulation switching sequence for three phase Z source inverters” IET Power Electron.,vol. 7,no. 11,pp. 2695-2703, Nov. 2014.
[9] Dong Cao, Shuai Jiang, Xianhao Yu, and Fang Zheng Peng, “Low-Cost Semi-Z-source Inverter for Single-Phase Photovoltaic Systems,” IEEE Trans. Power Electron., vol. 26, no. 12, pp. 3514-3523, Dec. 2011.
[10] Yu Tang, Shaojun Xie, and Chaohua Zhang, “Single-Phase Z-Source Inverter,” IEEE Trans. Power Electron., vol. 26, no. 12, pp. 3869-3873, Dec. 2011.
[11] Long Huang, Ming Zhang, Lijun Hang, Wenxi Yao, and Zhengyu Lu, “A Family of Three-Switch Three-State Single-Phase Z-Source Inverters,” IEEE Trans. Power Electron., vol. 28, no. 5, pp. 2317-2329, May. 2013
[12] C. J. Gajanayake, F.-L. Luo, H. B. Gooi, P. L. So, and L. K. Siow, “Extended-boost Z-source inverters,” IEEE Trans. Power Electron., vol. 25, no. 10, pp. 2642–2652, Oct. 2010.
[13] M. Zhu, K. Yu, and F. L. Luo, “Switched inductor Z-source inverter,” IEEE Trans. Power Electron., vol. 25, no. 8, pp. 2150–2158, Aug. 2010.
[14] N. Minh-Khai, Y.-c. Lim, and G.-B. Cho, “Switched-inductor Quasi-Z-source inverter,” IEEE Trans. Power Electron., vol. 26, no. 11, pp. 3183–3191, Nov. 2011.
[15] W. Qian, F. Z. Peng, and H. Cha, “Trans-Zsource inverters,” IEEE Trans. Power Electron., vol. 26, no. 12, pp. 3453–3463, Dec. 2011.
[16] M. Adamowicz, J. Guzinski, R. Strzelecki, F. Z. Peng, and H. Abu-Rub, “High step-up continuous input current LCCT-Z-source inverters for fuel cells,” IEEE Energy Conversion Congress Exposition (ECCE), pp. 2276–2282, Sep. 2011
[17] M. Adamowicz, R. Strzelecki, F. Z. Peng, J. Guzinski, and H. Abu-Rub, “New type LCCT-Zsource inverters,” in Proc. 14th European Conf. Power Electronics Applications (EPE 2011), pp. 1–10, Sep. 2011.
[18] R. Strzelecki, W. Bury, M. Adamowicz, and N. Strzelecka, “New alternative passive networks to improve the range output voltage regulation of the PWM inverters,” in Proc. 2009 IEEE Applied Power Electronics Conf. Exposition (APEC), vols. 1–4, pp. 857–863.
[19] Yu K, Zhao J, Tseng KJ, Luo FL and Zhu M, “Space vector pulse-width modulation for single-phase full-bridge Z-source inverter,” International Journal of Circuit Theory and Applications 2015, pp. 374–389.
[20] Yi Longqiang and Dai Yuxing, “SVPWM Technique Applied to Single-Phase Inverter Power,” Trans. China Electrotechnical Society, vol. 22, no. 9, pp.112-123, Sep. 2007
[21] Zhen Yu and David Figoli, “AC Induction Motor Control Using Constant V/Hz Principle and Space-Vector PWM Technique With TMS320C240,” Texas Instruments Literature Number SPRA284.
[22] Direct-quadrature-zero transformation Available at: https://en.wikipedia.org/wiki/Direct-quadrature-zero_transformation
[23] Yi Longqiang and Dai Yuxing, “DSP Based Single-Phase SVPWM Technique and Zero-Sequence Signal Analysis,” ACTA Electronica Sinica, vol. 35, no.12, pp.2289-2293, Dec.2007
[24] Uthane Supatti and Fang Zheng Peng, “Z-source inverter with grid connected for wind power system,” IEEE Energy Conversion Congress and Exposition, pp. 398–403, Sep. 2009.
[25] Yan Zhou, Liming Liu, and Hui Li, “A High-Performance Photovoltaic Module-Integrated Converter (MIC) Based on Cascaded Quasi-Z-Source Inverters (qZSI) Using eGaN FETs,” IEEE Trans. Power Electron., vol. 28, no. 6, pp. 2727-2738, Jun. 2013
[26] Abraham I. Pressman, Keith Billimgs, and Taylor Morey, “Switching Power Supply Design,” McGraw-Hill Professional, 3 edition, pp. 547-551, Mar. 2009.
[27] Microchip Technology Inc., “dsPIC33FJ06GS101/X02 and dsPIC33FJ16GSX02/X04,” Available at: http://www.microchip.com
[28] 黃士銘, “高效率雙向直流-直流轉換器研製,＂ 國立台灣科技大學電機工程系碩士學位論文, 民國103 年1 月.
[29] 賴文能、林國祥、高志暐，「數位信號處理」第三版，高立圖書有限公司，2007 年。
[30] 林冠宇,“獨立型太陽能發電系統用準Z源換流器之設計與研製,” 國立台灣科技大學電機工程系碩士學位論文，民國102年7月。
[31] 陳嘉慶, “用於準Z源換流器之新型調變策略開發” 國立台灣科技大學電機工程系碩士學位論文，民國105年7月。