臺灣博碩士論文加值系統

由於汽車每年排放大量的二氧化碳嚴重影響世界氣候，在這樣的條件下發展低污染的電動車便可有效改善此問題，而電動車儲能系統與充電站之間的儲能過程便需要電力轉換器去做電壓的匹配。因此本文採用主動雙橋式隔離型雙向直流轉換器及電池儲能系統來實踐電動車直流充電的概念，且使用LabVIEW圖控軟體以及CAN-bus通訊協定來控制電力轉換器達成雙向的功率傳輸，並搭配本文使用的最小峰值電流法則以提高電力轉換器的整體效率。

Because the CO2 emissions from increasing vehicles worsen the world''s climate and aggravate the global warming, the low-pollution electric vehicles(EV) have been proposed and developed as one of the solutions. The process of the energy storage be-tween the energy storage system and EV charging station will need a power converter to match and coupling the charging voltage. This thesis applies a DAB bi-directional DC converter and battery energy storage system to realize the EV DC charging. The Lab-VIEW graphical software and CAN-bus protocol are used to control the bidirectional power transmission of the power converter with minimum peak current control to im-prove the overall transmission efficiency.

摘要………………………………………………...….i
Abstract……...…………………………………......…ii
目錄……………………………………………….…..iii
圖目錄………………………………......………….….v
表目錄………………………………………………....x
第一章 緒論……………………………………..........1
1.1研究動機…………………………………….........1
第二章 文獻回顧……………………………………………………..4
2.1電動車充範……...…………………………….....4
2.2主動雙橋式隔離型電力轉換器…………..……..5
2.3 各種控制法則介紹…..……….………..………..8
2.3.1 相位移調變…………..…...........……...…9
2.3.2 梯形電流調變…………...…..……….....13
2.3.3 三角形電流調變……...…………….......14
2.3.4 最小有效值電流調變……….……...…..15
2.3.5最小虛功率調變..……….………......…..16
2.3.6 最小峰值電流調變……….………...…..17
2.4 電力轉換器的損失………………………….…19
2.5 充電策略概述……………………….....………20
2.6 總結……………………………………........….23
第三章 電路操作原理…………..…………….....…25
3.1 簡介………………………………….....….25
3.2 動作原理………………………………..…26
3.3 電路分析………………………………......27
3.4 最小峰值電流調變法……………..........…45
3.4.1 功率傳輸方程式…………...…...…...45
3.4.2 決定最小峰值電流的d1與d2.…………...…48
3.5 雙向功率的控制………………………….....…52
第四章 實驗電路的設計………………...................55
4.1 電路架構………………....................……55
4.1.1 設計輔助電感………..………..……56
4.1.2 設計變壓器匝數..………………..…57
4.1.3 鋰鐵電池資料………..…………..…58
4.2 控制訊號配置……………………........…60
4.3 控制方法………...………………….……61
4.4 控制流程圖…….………….…..............…63
4.5 ZVS的限制...…………………..............…64
4.6 高頻變壓器設計…………………..……...……66
4.7 Labview介面設計…........…….....……….....…70
4.7.1 eCAN接收………..…..…..…..........…71
4.7.2 eCAN傳送……….....……...............…73
第五章 實驗結果與分析……….......................…....76
5.1簡介……..………………………................……75
5.2充電模式..……………………….…….......……78
5.2.1 輕、重載的電壓及電流分析…....…78
5.2.2 輕、重載的開關切換狀態…...…….81
5.3放電模式……..…………………....................…88
5.4 CC/CV模式..……...…………….…….......……90
5.5峰值電流比較……..…………………........……91
5.6效率與損失的分析……..……………........……94
5.6.1 峰值電流比較及分析……..................…97
5.6.2 變壓器損失比較…..........................……99
5.6.3 導通損失比較…………………..…..…100
5.6.4 截止損失比較……..….….................…102
5.6.5 放電效率的比較…….…….............…..104
5.6.6 充電效率的比較…….……...................105
5.6.7 虛功率的比較…………………..…......106
5.6.8 功率因數的比較……………….….......108
5.7總結……………………..………………....…..109
第六章 結論與未來研究方向…………………….110
參考文獻……………………………………...…...111

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