研究生: |
余文隆 Wun-Long Yu |
---|---|
論文名稱: |
DSP為基礎單級太陽能最大功率追蹤換流器之研製 Design and Implementation of a DSP-Based Single-Stage Maximum Power Point Tracking Inverter for PV System |
指導教授: |
羅有綱
Yu-Kang Lo 邱煌仁 Huang-Jen Chiu |
口試委員: |
劉益華
Yi-Hua Liu |
學位類別: |
碩士 Master |
系所名稱: |
電資學院 - 電子工程系 Department of Electronic and Computer Engineering |
論文出版年: | 2009 |
畢業學年度: | 97 |
語文別: | 英文 |
論文頁數: | 74 |
中文關鍵詞: | 最大功率追蹤換流器 、擾動觀察法 、正弦脈寬調變 |
外文關鍵詞: | maximum power point tracking inverter, perturbation and observation method, sinusoidal pulse width modulation |
相關次數: | 點閱:565 下載:9 |
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本論文研製一個以數位訊號處理器為基礎兼具最大功率追蹤單相單級太陽能換流器系統,其主要控制策略包含:廣受業界所採用的擾動觀察法被選擇為太陽能最大功率追蹤演算法,搭配數位正弦脈寬調變單極性電壓切換技術達到輸出頻率可控效果。
對於市場開發相較於傳統雙級架構,單級太陽能轉換系統具備低成本、開發容易,且能提升整體系統效率等優點。此外,本論文並提出一新式電流取樣技術,進而增加太陽能轉換系統的彈性度,且兼具提升最大功率追蹤準確度效果。最後,太陽能換流系統控制器核心建構使用德州儀器TMS320F2808數位訊號處理器,並以軟硬體搭配實作驗證。
This thesis presents the design and implementation of a DSP-Based single-phase single-stage photovoltaic (PV) energy inverter system which can extract maximum power from solar array. The main control scheme of the photovoltaic inverter system is: a perturbation and observation (P&O) method commonly employed for industrial applications as the maximum power point tracking algorithm cooperate with a digital sinusoidal pulse width modulation with unipolar voltage switching scheme to control the output frequency.
For a market development issue, single-stage topology provides the benefits of low cost, easy implementation and improved overall system efficiency compared with conventional two-stage structure. Besides, this thesis proposes a new current sampling technique to enhance the system flexibility and the MPPT accuracy of maximum power point tracker (MPPT). Finally, the control of the photovoltaic inverter system established by a digital signal processor Texas Instruments TMS320F2808 is applied together with the software algorithm for the experiments to certify the proposed scheme.
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