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博碩士論文 etd-0726110-170609 詳細資訊
Title page for etd-0726110-170609
論文名稱
Title
適用於LCL主動前端轉換器之全靜止框諧振電流控制器設計
Design of Resonant Current Controller in Full stationary-frame for LCL-based Active Front-end Converter
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
122
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
2010-07-05
繳交日期
Date of Submission
2010-07-26
關鍵字
Keywords
振電流控制器、主動前端轉換器、靜止框
resonant current controller, Active front-end converter, stationary frame
統計
Statistics
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The thesis/dissertation has been browsed 5718 times, has been downloaded 5516 times.
中文摘要
由於功率半導體與電力電子技術的發展進步,擁有雙向功\\率傳輸能力之主動前端轉換器越來越受到工業上的用戶所喜愛。本論文針對使用LCL filter之主動前端轉換器提出在全靜止框架下之電流控制架構,使用諧振控制器做電流之控制。其電流控制器由基頻帶通濾波器與各次諧波頻率之帶斥濾波器所組成,提供基頻電流追隨能力與增進諧波電流的抑制能力。基於此電流控制架構,擷取轉換器輸出端電流、LCL filter電容之電壓與直流端電壓三種訊號,達到穩定直流端電壓之目的,並控制轉換器對LCL filter電容虛功做出補償,不從市電端引入此虛功\\成份。本文提出之方法在全靜止框架下控制,不需要鎖相迴路也可對於市電端之諧波電壓造成之干擾達到抑制;不需要同步框轉換之運算,減少延遲及DSP運算時間,其電流控制架構對諧波抑制能力與改善功率因數兩點將以電腦模擬以及實際電路之實驗結果驗證。
Abstract
Thanks to development of power semiconductor devices and integrated circuits, active front-end converters with controllability of bidirectional power flow have become popular and viable in industrial applications. This thesis proposes an improved resonant current control for the active front-end converter with LCL filter. The proposed control consists of a band-pass filter tuned at fundamental frequency and various band-rejected filters resonant at harmonic frequencies to provide fundamental current tracking capability as well as enhance harmonic current rejection. Based on this algorithm, the active front-end converter can control dc voltage with unity power factor by sensing converter output current, LCL filter voltage and dc voltage. This approach also conducts harmonic current rejection under distorted line voltage with no phase-locked-loop used, which is the significant advantage in terms of phase lag of frame transformation and computing effort of digital signal processing. Current tracking performance and harmonic rejection capability of the proposed method are verified based on frequency-domain analysis. Computer simulations and experimental results are also implemented to validate effectiveness.
目次 Table of Contents
摘要 二
Abstract 三
目錄 四
圖目錄 六
表目錄 一一
第一章 緒論 1
1.1 簡介 1
1.2 研究動機與目的 2
第二章 文獻回顧 3
2.1 簡介 3
2.2 主動式前端整流電路架構與控制策略 3
2.2.1. 靜止框轉換與同步框轉換 4
2.2.2. 鎖相迴路 6
2.2.3. LC filter and LCL filter 7
2.3 電流控制器 11
2.3.1. PI 控制器 11
2.3.2. PR控制器 15
2.4 諧波補償器 23
2.4.1. 標準電流諧波補償器架構 24
2.4.2. 改良之電流諧波補償器架構 27
2.5 總結 29
第三章 操作原理 30
3.1 簡介 30
3.2 電路控制架構與動作原理 31
3.2.1. 直流端電壓控制 32
3.2.2. 電流控制方法之動作原理 37
3.3 總結 42
第四章 模擬結果 43
4.1 簡介 43
4.2 本文提出之電流控制架構 43
4.2.1. 無LCL filter之電容電流補償 44
4.2.2. 含LCL filter之電容電流補償 50
4.3 傳統PR電流控制架構 62
4.3.1. 無LCL filter之電容電流補償 62
4.3.2. 含LCL filter之電容電流補償 67
4.4 總結 73
第五章 實驗結果 75
5.1 簡介 75
5.2 本文提出之電流控制架構 76
5.2.1. 無LCL filter之電容電流補償 77
5.2.1. 含LCL filter之電容電流補償 82
5.3 傳統PR電流控制架構 93
5.3.1. 無LCL filter之電容電流補償 93
5.3.2. 含LCL filter之電容電流補償 98
5.4 總結 104
第六章 結論與未來展望 106
參考文獻 107
附錄 109
A 實驗機台照片 109
B 實驗使用之DSP晶片介紹 111

參考文獻 References
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