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研究生:尤元甫
研究生(外文):Yuan-Fu Yu
論文名稱:多功能微型變流器之研製
論文名稱(外文):Design and Implementation of Multi-functional Micro PV Inverter
指導教授:江炫樟江炫樟引用關係
指導教授(外文):S. J. Chiang
口試委員:蔡明村馬肇聰
口試委員(外文):Ming-Tsung TsaiTsao-Tsung Ma
口試日期:2014-07-22
學位類別:碩士
校院名稱:國立聯合大學
系所名稱:電機工程學系碩士班
學門:工程學門
學類:電資工程學類
論文種類:學術論文
論文出版年:2014
畢業學年度:102
語文別:中文
論文頁數:149
中文關鍵詞:市電並聯模式、在線互動模式、獨立模式、多組並聯、無控制信號連結
外文關鍵詞:Grid-connected Mode, Line-interactive Mode, Stand-alone Mode, Multi-module Parallel, No Control Interconnection
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有別於傳統採用較大容量光伏模組陣列發電方式,本論文研製一單相微型多功能光伏變流器系統,其兼具市電併聯、在線互動與獨立模式變流器功能,在市電並聯模式下可將單一光伏模組產生之電能經由此微型變流器以單位功因方式饋入市電;在線互動模式下,微型變流器雖與市電並聯,然而其僅分擔負載功率,不會將電力饋入市電;在市電中斷時,其轉換成一獨立式變流器維持負載電壓,以提供負載較穩定之電力。電路採用雙級式電路架構,前級使用電壓鉗位電流源推挽式直流至直流轉換器,後級使用全橋式直流至交流變流器。本論文除提出達到這些工作模式之控制器設計外,亦提出其多模組並聯之控制方法,可在無儲能設備及通訊下亦能達成上述三工作模式,擴充系統之容量。本論文所設計之電路均藉由PSIM軟體來加以驗證,控制電路乃以德州儀器(TI)的TMS320F28335來實現並採用PSIM之SimCoder Tool Box協助韌體之撰寫,再透過TI的CodeComposer Studio直接燒錄F28335晶片。本論文最終完成3部250W微型變流器之並聯,並由一些模擬與實驗結果來驗證所提電路即控制方法之有效性。
Unlike the conventional large capacity PV string inverter, this thesis develops a multi-functional micro inverter (MI) of one module scale. It can operate in grid-connected mode to feed power to the grid with unity power factor. It also can be operated in line-interactive mode to only share the load power without feeding power to the grid. As the grid power is failed the MI will be operated in the stand alone mode to supply uninterruptible power to the load as the PV power is sufficient. The MI employs a two-stage topology. The front stage is an active clamped current-fed push-pull DC-DC converter. The rear stage is a full-bridge DC-AC inverter. The thesis presents the detailed circuit analysis and controller design. The multi-module parallel control technology is also proposed to maintain the operation modes and enlarge system capacity without requiring any energy storage and control interconnection. The designed circuits and controllers are confirmed with PSIM simulation. The control circuit is implemented with The Texas Instruments (TI) DSP F28335. The control program is generated with the aid of SimCoder toolbox of PSIM and then the Code can be loaded directly into the DSP chip through the TI Composer. Three 250W modules are implemented and paralleled. The effectiveness of the proposed circuits and control methods are confirmed with some simulation and experimental results.
誌謝 I
中文摘要 II
英文摘要 III
目錄 IV
圖目錄 VII
表目錄 XIV
第一章 緒論 1
1.1 研究背景 1
1.2 研究動機及目的 2
1.3 本論文之章節安排 20
第二章 多功能光伏微型變流器之系統架構 22
2.1 多功能光伏微型變流器之工作模式與應用 22
2.2 電路及控制架構 27
2.3 電路規畫 29
2.4 SimCoder韌體撰寫 31
第三章 主動鉗位電流源推挽式直流至直流轉換器之分析與設計 40
3.1 轉換器工作原理 41
3.2 電路設計 49
3.3 模擬與實驗結果 51
第四章 獨立模式變流器之分析與設計 60
4.1 變流器之分析與設計 61
4.1.1 電路工作原理與模型推導 61
4.1.2 控制器設計 63
4.2 變流器之量化設計 69
4.3 SimCoder程式說明 75
4.4 實驗結果 77
第五章 市電並聯模式及在線互動式變流器之分析與設計 80
5.1 市電模式及在線互動式變流器之控制架構設計 80
5.2 MPPT控制迴路設計 82
5.3 鎖相迴路與孤島偵測電路設計 96
5.3.1 鎖相迴路設計 96
5.3.2 孤島偵測電路設計 97
5.4 系統設計及模擬驗證 102
5.5 實驗驗證 114
第六章 所提多功能光伏微型變流器之多組並聯 117
6.1 多組並聯系統設計 117
6.1.1 在線互動模式下之並聯控制 118
6.1.2 在獨立模式下之並聯控制 123
6.2 模擬驗證 127
6.3 實驗驗證 132
第七章 結論與未來研究方向 142
7.1 結論 142
7.2 未來研究方向 143
參考文獻 145

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