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| DC 欄位 | 值 | 語言 |
|---|---|---|
| dc.contributor.advisor | 陳耀銘 | |
| dc.contributor.author | Ming-Hsueh Lee | en |
| dc.contributor.author | 李明學 | zh_TW |
| dc.date.accessioned | 2021-06-16T02:35:26Z | - |
| dc.date.available | 2020-08-03 | |
| dc.date.copyright | 2015-08-03 | |
| dc.date.issued | 2015 | |
| dc.date.submitted | 2015-07-27 | |
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| dc.identifier.uri | http://tdr.lib.ntu.edu.tw/jspui/handle/123456789/53981 | - |
| dc.description.abstract | 本論文旨在研製一組具磁滯電流控制之三相四線式換流器以應用於太陽能發電系統。三相四線式換流器輸入端具有兩顆串聯的直流鏈電容，當兩顆電容電壓出現不平衡時，將導致電路操作不穩定。因此本論文根據直流鏈電容電壓與中性線電流之關係，提出控制方法，藉由偵測直流鏈電容電壓之變化產生中性線電流訊號，以調節磁滯電流區間的偏移量，避免電容電壓偏移，達成電容電壓平衡之目的。此外，由於三相四線式換流器具有較多開關，功率開關切換時造成的功率損失，將造成轉換效率降低。因此為了降低功率開關的切換損失，本論文將控制電感電流使其在每個切換週期皆能雙向流動，達成開關零電壓切換，以提升轉換效率。最後，以電腦模擬及硬體電路實驗結果驗證本論文所研製具磁滯電流控制之三相四線式換流器可行性與電路性能。 | zh_TW |
| dc.description.abstract | A three-phase four-wire inverter with hysteresis current control for the photovoltaic (PV) system application is proposed in this thesis. There are usually two series-connected dc-link capacitors in the input side of a three-phase four-wire inverter. Unstable operation may result if the two capacitor voltages are different. In this thesis, a control method is developed according to the relationship between the dc-link capacitor voltage and the neutral wire current. By detecting the dc-link capacitor voltage, the neutral wire reference current signal can be generated to adjust the offset of hysteresis current band, so the capacitor voltage shifting and unstable operation can be avoided. On the other hand, there are many switches in the three-phase four-wire inverter and their switching losses dominate the inverter’s efficiency. In this thesis, the zero voltage switching operation is achieved by producing the bi-directional inductor current so that the switching loss can be reduced. Finally, simulation and hardware implementation results verify the feasibility and performance of the proposed three-phase four-wire inverter with hysteresis current control. | en |
| dc.description.provenance | Made available in DSpace on 2021-06-16T02:35:26Z (GMT). No. of bitstreams: 1 ntu-104-R02921023-1.pdf: 2586595 bytes, checksum: 9489eccd558ab0375090c08bf69a4ae5 (MD5) Previous issue date: 2015 | en |
| dc.description.tableofcontents | 口試委員會審定書 i
誌謝 ii 摘要 iii ABSTRACT iv 目錄 v 圖目錄 viii 表目錄 xi 第一章 緒論 1 1.1 研究背景與動機 1 1.2 文獻回顧 4 1.3 論文大綱 5 第二章 三相換流器系統簡介 7 2.1 三相換流器電力級架構 8 2.1.1 三相三線式換流器 9 2.1.2 三相四線式換流器 9 2.1.3 三相四臂式換流器 10 2.2 三相換流器之電流控制法則 10 2.2.1 磁滯電流控制 11 2.2.2 正弦脈寬調變電流控制 12 2.2.3 預測式電流控制 13 2.2.4 空間向量調變電流控制 14 第三章 三相換流器之軟切換設計介紹 17 3.1 負載諧振型 18 3.1.1 串聯式諧振換流器 18 3.1.2 並聯式諧振換流器 19 3.2 暫態諧振型 21 3.2.1 準諧振型換流器 21 3.2.2 具緩衝器型換流器 24 3.2.3 軟性暫態調變型換流器 25 3.3 鏈區諧振型 28 3.3.1 交流鏈諧振型換流器 28 3.3.2 直流鏈諧振型換流器 29 第四章 軟硬體電路設計 31 4.1 電路操作模式 32 4.2 電流控制策略 37 4.2.1 磁滯電流區間設計 37 4.2.2 直流鏈電容電壓調節 40 4.3 功率級元件設計 42 4.3.1 LCL濾波器Lr 42 4.3.2 LCL濾波器Crf、Lrf 44 4.4 控制級硬體電路 45 4.4.1 隔離型功率開關驅動電路 46 4.4.2 電感電流偵測電路 47 4.4.3 磁滯電流比較電路 47 4.4.4 直流鏈電容電壓偵測電路 49 4.4.5 微控制器程式流程 49 第五章 電腦模擬與實作驗證 54 5.1 電腦模擬結果 54 5.1.1 直流鏈電容電壓控制 55 5.1.2 開關之零電壓導通 58 5.2 硬體電路實測 62 第六章 結論與未來發展 69 6.1 結論 69 6.2 未來研究方向 70 參考文獻 71 | |
| dc.language.iso | zh-TW | |
| dc.title | 具磁滯電流控制之三相換流器研製 | zh_TW |
| dc.title | Design and Implementation of a Three-Phase Inverter with Hysteresis Current Control | en |
| dc.type | Thesis | |
| dc.date.schoolyear | 103-2 | |
| dc.description.degree | 碩士 | |
| dc.contributor.oralexamcommittee | 陳德玉,邱煌仁,陳景然 | |
| dc.subject.keyword | 三相換流器,磁滯電流控制,電容電壓不平衡,零電壓切換, | zh_TW |
| dc.subject.keyword | three phase inverter,hysteresis current control,capacitor voltage unbalance,zero voltage switching, | en |
| dc.relation.page | 75 | |
| dc.rights.note | 有償授權 | |
| dc.date.accepted | 2015-07-27 | |
| dc.contributor.author-college | 電機資訊學院 | zh_TW |
| dc.contributor.author-dept | 電機工程學研究所 | zh_TW |
| 顯示於系所單位： | 電機工程學系 | |
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| ntu-104-1.pdf 目前未授權公開取用 | 2.53 MB | Adobe PDF |
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