研究生: |
陳志瑋 CHIH-WEI CHEN |
---|---|
論文名稱: |
兩級式三階層轉換器結合被動式漣波消除電路應用於太陽能發電系統 Two-Stage Three-Level Converter with Passive Ripple Cancelling Circuit for Photovoltaic Generation System |
指導教授: |
楊宗銘
Chung-Ming Young |
口試委員: |
連國龍
Kuo-Lung Lian 江茂欽 Maoh-Chin Jiang 陳良瑞 Liang-Rui Chen |
學位類別: |
碩士 Master |
系所名稱: |
電資學院 - 電機工程系 Department of Electrical Engineering |
論文出版年: | 2014 |
畢業學年度: | 102 |
語文別: | 中文 |
論文頁數: | 133 |
中文關鍵詞: | 最大功率追蹤 、被動式漣波消除電路 、空間向量脈波寬度調變 、數位鎖相迴路 、數位信號處理器 、三階層NPC變流器 、三階層直流/直流轉換器 、太陽能發電系統 |
外文關鍵詞: | Maximum Power Point Tracking (MPPT), Three-Level DC/DC Boost Converter (TLBC), Passive Ripple Cancelling Circuit (PRCC), Phase-Locked Loop (PLL), Digital Control, Three-Level NPC Inverter, Space Vector Pulse Width Modulation (SVPWM), Photovoltaic (PV) |
相關次數: | 點閱:612 下載:5 |
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本論文主旨在設計及製作兩級式三階層太陽能發電系統轉換器並結合被動式漣波消除電路(Passive Ripple Cancelling Circuit, PRCC),系統前級為三階層直流/直流轉換器而系統後級為三階層NPC三相變流器。系統前級三階層直流/直流升壓式轉換器選用擾動觀察法使太陽能系統在變動的環境下能有最佳的輸出功率,而後級三階層NPC變流器控制策略使用空間向量調變法,可提高直流鏈電壓的利用率,並作為與市電併網用且與市電同步策略使用數位式鎖相迴路。且於前級電路三階層直流/直流轉換器結合被動式漣波消除電路,抑制轉換器之輸入電流之電流漣波。本論文建立1.2 kW系統,並使用德州儀器生產的數位訊號處理器(TMS320F28069)作為數位控制核心,進行實作與量測來驗證此架構之可行性,並針對所結合之被動式漣波消除電路模擬分析與實作驗證其效果。
The photovoltaic (PV) generation system investigated in this paper is a two-stage topology which consists of a DC/DC three-level boost converter with passive ripple cancelling circuit (PRCC) and a grid-connected three-level NPC inverter. The DC/DC three-level boost converter applies perturb-and-observe algorithm for maximum power point tracking according to changing environment, which combines passive ripple cancelling circuit in order to eliminate current ripple of converter input current. The three-level NPC inverter is proposed to reduce the output voltage harmonics. The three-phase three-level NPC inverter uses space-vector-pulse-width modulation (SVPWM) technology to increase the usage of the DC-link voltage. Moreover, a digital phase lock loop (DPLL) is applied to synchronize to utility. In order to demonstrating the performance of the proposed converter, a 1.2 kW prototype is established and a digital signal processor (DPS TMS320F28069) is used as the digital controller. Finally, the experimental results show the validity of the proposed photovoltaic generation system.
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