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博碩士論文 etd-0703118-000021 詳細資訊
Title page for etd-0703118-000021
論文名稱
Title
基於三步驟電流換相的交流/交流降壓型逆變器之串聯式電壓調節器
An AC/AC Buck Inverter with Three-Step Current Commutation for Series Dynamic Voltage Regulator
系所名稱
Department
畢業學年期
Year, semester
語文別
Language
學位類別
Degree
頁數
Number of pages
60
研究生
Author
指導教授
Advisor
召集委員
Convenor
口試委員
Advisory Committee
口試日期
Date of Exam
2018-06-15
繳交日期
Date of Submission
2018-08-03
關鍵字
Keywords
降壓型轉換器、動態電壓調節器、交流/交流降壓型逆變器、三步驟電流換相、電壓驟降
AC/AC step-down inverter, Buck converter, dynamic voltage regulator, voltage sag, three-step current commutation
統計
Statistics
本論文已被瀏覽 5684 次,被下載 132
The thesis/dissertation has been browsed 5684 times, has been downloaded 132 times.
中文摘要
本論文由傳統降壓型轉換器為原型,推導出交流/交流降壓型逆變器之輸入及輸出的關係,詳細分析電感電流之路徑,使用三步驟電流換相策略,以避免電感電流於換相過程中發生斷流現象,有效地抑制電感及開關上的電壓突波,提升電路的穩定度。使用交流/交流降壓型逆變器為動態電壓調節器,於系統發生電壓變動時進行電壓補償。
本論文以實驗室等級之硬體電路驗證實驗,利用可程式交流電壓供應器模擬系統發生電壓驟降的情形。由實驗結果看出,當系統電壓發生驟降時,動態電壓調節器可於不同的負載特性及功率因數下,調節負載電壓且穩定於標稱電壓。此外,有效抑制開關及電感上電壓突波。
Abstract
This thesis derives the relationship between input and output of the AC/AC step-down inverter from the traditional Buck converter as the prototype. To suppress the surge voltage on inductor and IGBTs during the commutation of inductor current, this thesis analyzes the current loop of inductor and uses the three-step current commutation. While voltage fluctuation of system is happened, the controller compensates voltage by ac/ac inverter as the dynamic voltage regulator.
Experiment tests are carried out by the laboratory prototype with ac/ac inverter. Using the programmable ac source to simulate voltage sag of system. Experimental results show that the dynamic voltage regulator can compensate load voltage and fix it to the nominal voltage in different load characteristics and power factors. Besides, it can suppress the surge voltage on inductor and IGBTs effectively.
目次 Table of Contents
摘要 i
Abstract ii
目錄 iii
圖次 v
表次 vii
第一章 緒論 1
1.1 前言 1
1.2 研究目的與動機 1
1.3 論文大綱 1
第二章 文獻回顧 3
2.1 電力品質概述 3
2.1.1 電壓變動 3
2.1.2 電壓驟降[2] 4
2.1.3 電壓諧波規範[6] 5
2.2 電壓調節方式 5
2.2.1 分接頭變壓器 5
2.2.2 動態電壓調節器[9,10] 5
2.3 開關換相策略[18,19] 9
2.4 總結 10
第三章 電路架構及動作原理 11
3.1 簡介 11
3.2 系統架構 11
3.3 電路動作原理 17
3.4 電路動作方式 21
3.4.1 三步驟電路換相 21
3.4.2 電感非連續導通模式 27
3.5 總結 30
第四章 元件參數設計 31
4.1 變壓器匝數比設計 31
4.2 儲能電感設計 32
4.3 濾波電容設計 33
第五章 實驗結果驗證 34
5.1 簡介 34
5.2 實驗架構與參數 34
5.3 實驗結果與分析 37
5.3.1 電阻性負載實驗 37
5.3.2 電感性負載實驗 41
5.3.3 換相策略驗證 45
5.4 實驗問題分析 45
5.5 總結 46
第六章 結論及未來方向 48
6.1 結論 48
6.2 未來研究方向 48
參考文獻 49
參考文獻 References
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[2] IEEE Recommended Practice for Monitoring Electric Power Quality, in IEEE Std 1159-2009 (Revision of IEEE Std 1159-1995), pp.c1-81, June 2009.
[3] IEEE Guide for Identifying and Improving Voltage Quality in Power Systems, in IEEE Std 1250-2011 (Revision of IEEE Std 1250-1995), pp.1-70, March 2011.
[4] ANSI C84.1-2006, American National Standard for Electric Power Systems and Equipment-Voltage Ratings (60 Hertz).
[5] 台灣電力公司,“台灣電力公司輸電系統規劃準則”。
[6] IEEE Recommended Practice and Requirements for Harmonic Control in Electric Power Systems, in IEEE Std 519-2014 (Revision of IEEE Std 519-1992), pp.1-29, June 2014.
[7] V. Verma and R. Gour, “Step-less Voltage Regulation on Radial Feeder with OLTC Transformer-DVR Hybrid,” Proceeding in 6th International Conference on Power Electronics Systems and Applications (PESA), pp. 1-6, 2015.
[8] C. Gao and M. A. Redfern, “Advanced Voltage Control Strategy for On-Load Tap-Changer Transformers with Distributed Generations,” Proceeding in 46th International Universities Power Engineering Conference (UPEC), pp. 1-6, 2011.
[9] A. V. Sidorov, “AC Voltage Regulators Review,” Proceeding in 17th International Conference of Young Specialists on Micro/Nanotechnologies and Electron Devices (EDM), pp. 563-572, 2016.
[10] M. İnci, M. Büyük, A. Tan, K. Ç. Bayındır, and M. Tümay, “Survey of Inverter Topologies Implemented in Dynamic Voltage Restorers,” Proceeding in 4th International Conference on Control, Decision and Information Technologies (CoDIT), pp. 1141-1146, 2017.
[11] C. N. M. Ho, H. S. H. Chung, and K. T. K. Au, “Design and Implementation of a Fast Dynamic Control Scheme for Capacitor-Supported Dynamic Voltage Restorers,” IEEE Transactions on Power Electronics, vol. 23, no. 1, pp. 237-251, January 2008.
[12] Z. Shuai, P. Yao, Z. J. Shen, C. Tu, F. Jiang, and Y. Cheng, “Design Considerations of a Fault Current Limiting Dynamic Voltage Restorer (FCL-DVR),” IEEE Transactions on Smart Grid, vol. 6, no. 1, pp. 14-25, January 2015.
[13] C. A. Petry, J. C. Fagundes, and I. Barbi, “New Direct Ac-Ac Converters Using Switching Modules Solving the Commutation Problem,” Proceeding in IEEE International Symposium on Industrial Electronics, pp. 864-869, 2006.
[14] M. R. Hajimoradi, E. Karimi, H. Mokhtari, and A. Yazdian, “Performance Improvement of a Double Stage Switch Mode AC Voltage Regulator,” Proceeding in 3rd Power Electronics and Drive Systems Technology (PEDSTC), pp. 181-186, 2012.
[15] B. H. Kwon, J. H. Youm, and J. H. Choi, “Automatic Voltage Regulator with Fast Dynamic Speed,” Proceeding in IEE Electric Power Applications, vol. 146, no. 2, pp. 201-207, March 1999.
[16] 李權旻,“基於雙模式全橋逆變器之串聯電壓調節器”,國立中山大學電機工程研究所碩士論文,2017年3月。
[17] H. F. Ahmed, H. Cha, A. A. Khan, and H. G. Kim, “A Novel Buck–Boost AC–AC Converter With Both Inverting and Noninverting Operations and Without Commutation Problem,” IEEE Transactions on Power Electronics, vol. 31, no. 6, pp. 4241-4251, June 2016.
[18] Paweł Szczes´niak, “Three-Phase AC–AC Power Converters Based on Matrix Converter Topology,” Springer Verlag Inc, February 2013.
[19] P. W. Wheeler, J. Clare, and L. Empringham, “Enhancement of Matrix Converter Output Waveform Quality Using Minimized Commutation Times,” IEEE Transactions on Industrial Electronics, vol. 51, no. 1, pp. 240-244, February 2004.
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