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| 研究生： |
王嘉紋 Chia-wen Wang |
|---|---|
| 論文名稱： |
具浮點運算數位信號處理器之三相交流-直流-交流功率轉換器研製 Developmetn of AC-DC-AC Power Converters with Floating-Point Digital Signal Processor |
| 指導教授： |
黃仲欽
Jonq-chin Hwang |
| 口試委員: |
葉勝年
Sheng-nian Yeh 呂錦山 Ching-shan Leu 王順源 Shun-yuan Wang |
| 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： | 2010 |
| 畢業學年度： | 98 |
| 語文別： | 中文 |
| 論文頁數： | 86 |
| 中文關鍵詞： | 浮點式運算核心 |
| 外文關鍵詞： | Floating-Point Digital Signal Processor |
| 相關次數： | 點閱：183 下載：14 |
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本文旨在分析及製作具有用浮點數運算數位信號處理器之交流-直流-交流功率轉換器。本中採用高效能浮點數運算核心晶片，其運算相較於傳統定點式，具效能提升及軟體開發簡化的優點。本文系統之電壓及電流閉迴路控制策略採軟體程式完成，不僅可以簡化程式及縮短程式執行時間，亦可減少硬體電路成本。本文在發電側之交流-直流功率轉換器方面可改善電流諧波含量及提高功率因數，並採直流鏈電壓閉迴路控制，以維持直流鏈電壓固定而不受電源及負載變動的影響；本文之系統於市電側之直流-交流功率轉換器則具有同步旋轉座標交-直軸電流閉迴路控制，減少電流諧波含量，以提高整體系統響應速度。
本文建立交流-直流-交流功率轉換器之整體系統，以Matlab/Simulink應用軟體模擬，實體製作採浮點運算之數位訊號處理器(TMS320F28335)作為整體系統之控制核心。本文已完成800W之整體系統測試，發電側輸入電壓為110V，50Hz，直流鏈電壓為250V，電流諧波失真率為9.08%；市電側的交流電壓110V，60Hz，電流諧波失真率為16.64 %；系統整體效率為80%。
This thesis is concerned with the analysis and implementation of AC-DC-AC power converter with floating-point Digital Signal Processor. It provides better performance than traditional fix-point computation with simplified softwave development. The system voltage and current closed-loop control as well as overall system control strategies are conducted by softwave to reduce circuit component and improve system reliability. The input current harmonics and power factor of the AC-DC power converter are also improved. DC-link fixed-voltage control is adopted to maintain the dc-link voltage stable under load variation. In addition, under grid-connected operation, q-d current control in synchronous frame is used for DC-AC power converter to reduce current harmonic and improve the system response speed.
In this thesis, the AC-DC-AC power converter is built and simulated by Matlab/Simulink. The high-performance digital signal processor TMS320F28335 is use to control the power converter. A prototype of 800W power conversion system is developed. The Input voltage of AC-DC power converter is 110V, 50Hz. The dc-link voltage is 250V, the current harmonic distortion is 9.26%. Under grid-connected operation, the output voltage is 110V, 60Hz, the current harmonic distortion is 17.21%. The system efficiency is 80%.
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