應用於三相轉換器之被動元件在線監測與無電流感測三相整流器之系統控制

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姓名

林彥倫(Yen-Lun Lin) 查詢紙本館藏

畢業系所

電機工程學系

論文名稱

應用於三相轉換器之被動元件在線監測與無電流感測三相整流器之系統控制
(Online Monitoring of Passive Components for Three-Phase Converters and Current-Sensorless Control of Three-Phase Rectifiers)

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至系統瀏覽論文 ( 永不開放)

摘要(中)

本論文提出一種改良型大功率三相逆變器直流鏈電容器的減額定評估電路，並對傳統減額定評估電路的概念進行討論。所提改良型減額定逆變器評估電路在負載平衡與負載不平衡時皆能得到與全額定三相逆變器直流鏈電容相同的電流與電壓，並且本論文將被動元件在線監測功能加入減額定評估電路中，使其在進行電容老化測試時能即時得知電容容值。進一步本文提出了新型無電流感測三相整流器之系統控制，將電感感值估測功能加入無電流感測器三相功率因數校正整流器系統中，改善了傳統無電流感測器三相功率因數校正整流器須已知輸入電感感值的需求，使其在輸入電感因為老化或其他因素發生感值變化時亦能有良好的表現，並且加入電容容值估測功能用以監控電容容值的老化現象。
最後，本文以德州儀器生產之數位信號處理器TMS320F28335與賽靈思生產之現場可程式化邏輯閘陣列Cmod A7 35T進行實作，經由模擬與電路實作驗證本論文之改良型減額定逆變器評估電路、三相轉換器之被動元件在線監測功能與新型無電流感測三相整流器之系統控制的有效性。

摘要(英)

In this thesis, an improved down-scale evaluation system for capacitors utilized in high-power three-phase inverters is proposed. Some concepts of the conventional down-scale evaluation systems are discussed. The proposed improved down-scale evaluation system can derive the same DC-link capacitor current and voltage in the full-scale inverter under both balanced and unbalanced load condition. In addition, the online condition monitoring method of passive components is added to the proposed improved down-scale evaluation system, so that the capacitance value of the DC-link capacitor can be immediately known during the capacitor aging test. Furthermore, a new current sensorless control for three-phase power factor correction(PFC) rectifier system is proposed in this thesis. The inductance estimated method is added to the current sensorless three-phase PFC rectifier system, It can improve the conventional current sensorless three-phase PFC rectifier system without the demand of input inductance value. Then the system can be well controlled even if the input inductance value is changed due to aging or other factors. In addition, the capacitance estimated method is added to monitor the aging phenomenon of capacitance value.
Finally, the digital signal processor(DSP) TMS320F28335 and field programmable gate array(FPGA) Cmod A7 35T is utilized in the implementation. The simulation and experimental results can verify the feasibility of the proposed down-scale evaluation system, online condition monitoring method of passive components in the three-phase converters, and novel current sensorless three-phase PFC rectifier system.

關鍵字(中)

★ 直流鏈電容
★ 減額定評估電路
★ 被動元件
★ 在線監測
★ 無電流感測控制

關鍵字(英)

★ DC-Link Capacitors
★ Down-Scale Evaluation System
★ Passive Component
★ Online Condition Monitoring
★ Current Sensorless Control

論文目次

摘要 I
Abstract II
誌謝 III
目錄 IV
圖目錄 VII
表目錄 XIII
第一章緒論 1
1-1研究背景與動機 1
1-2文獻探討 2
1-3本論文之貢獻 6
1-4論文大綱 8
第二章大功率三相六開關逆變器直流鏈電容評估電路 9
2-1前言 9
2-1-1電容器的典型故障模式 10
2-1-2直流鋁質電解電容的建模 10
2-2傳統全額定與減額定逆變器直流鏈電容評估電路 11
2-2-1傳統全額定三相六開關逆變器 11
2-2-2傳統減額定三相六開關逆變器評估電路 12
2-2-3傳統減額定三相六開關逆變器評估電路之電流路徑與問題 13
2-3所提改良型減額定逆變器評估電路 15
2-3-1改良型減額定逆變器評估電路架構 15
2-3-2直流與交流分析 16
第三章三相轉換器之被動元件在線監測 22
3-1前言 22
3-2鎖頻迴路 22
3-2-1二階廣義積分正交訊號產生器 23
3-2-2雙二階廣義積分鎖頻迴路 24
3-2-3比例諧振控制器 26
3-3逆變器之電容電感監測 27
3-3-1具被動元件監測之逆變器控制架構 28
3-3-2逆變器高頻注入與低頻注入比較 30
3-3-3逆變器之電容監測 31
3-3-4逆變器之電感監測 35
3-4整流器之電容電感監測 38
3-4-1全額定整流器與減額定整流器評估電路 38
3-4-2具被動元件監測整流器控制架構 41
3-4-3整流器高頻注入與低頻注入比較 42
3-4-4整流器之電容監測 43
3-4-5整流器之電感監測 44
第四章無電流感測三相PFC整流器 48
4-1前言 48
4-2傳統無電流感測三相PFC整流器之分析 49
4-2-1電路分析 50
4-2-2平均方程式推導與控制架構 53
4-3所提新型無電流感測三相PFC整流器之系統控制 56
4-3-1無電流感測電感感值估測 56
4-3-2無電流感測電容容值估測 59
4-3-3新型無電流感測三相PFC整流器系統控制 61
第五章系統架構與模擬結果 64
5-1 PSIM模擬軟體介紹 64
5-2改良型減額定逆變器評估電路模擬結果 64
5-2-1電感電流漣波之等效 67
5-2-2三相負載不平衡待測電容電流之等效 68
5-2-3低壓直流側諧波流入問題 70
5-3全額定與減額定逆變器被動元件在線監測模擬結果 71
5-3-1三相負載平衡與不平衡之全額定與減額定逆變器電容監測 75
5-3-2三相負載平衡與不平衡之全額定與減額定逆變器電感監測 80
5-4新型無電流感測三相PFC整流器之模擬結果 81
第六章實體電路製作與量測結果 94
6-1實作電路 94
6-2改良型減額定逆變器評估電路實測結果 106
6-2-1電感電流漣波之等效 106
6-2-2三相負載不平衡待測電容電流之等效 109
6-2-3低壓直流側諧波流入問題 110
6-3全額定與減額定逆變器被動元件在線監測實測結果 111
6-3-1三相負載平衡與不平衡之全額定與減額定逆變器電容監測 113
6-3-2三相負載平衡與不平衡之全額定與減額定逆變器電感監測 117
6-4新型無電流感測三相PFC整流器之實測結果 118
第七章結論與未來展望 130
7-1論文內容總結 130
7-2未來研究方向 130
參考文獻 132

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指導教授

廖益弘(Yi-Hung Liao)

審核日期

2022-8-25

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