臺灣博碩士論文加值系統

本論文主要在研製一輸出功率750瓦、交流側電壓230 V、直流側電壓750 V之雙向高效率、高功率密度再生能源系統應用之電源轉換器。為使工作應用範圍更廣，本論文採用同步整流方式使其能夠雙向功率傳遞。本論文採用無橋架構使整流模式之效率提高、換流模式則為T 型換流器架構，控制方面採用數位控制方法取代傳統以類比IC控制。傳統類比IC雖然控制成本較低，但相較於數位控制則有許多缺點，例如無法應用進階控制技術等等。因此，本論文使用數位控制器發展出，整流模式以平均電流法控制、換流模式使用單電壓極性切換控制之雙向轉換器。最後實現整流模式滿載效率98.11%、換流模式效率96.2%之高功率密度雙向轉換器。

This thesis aims to study and design an output power 750 W, AC-side 230 V, DC-side 750 V bi-directional high efficiency and high power density for power converter of green energy system. For wider range of applications, this thesis implements synchronous rectification to achieve bi-directional power transference and the bridgeless topology for higher rectification-model efficiency, the inverter-model applied is a T-type inverter topology. On other the hand, the digital control used to replace analog control, the analog control is economical and simple but compared with digital control, it are some disadvantages such as not able to be using advance control technology and so on. Therefore, this thesis realize average current mode control for rectification-model and unipolar PWM control for invert-model base on digital signal processor. Finally, a high power density bi-directional converter has been achieved, the rectification-model efficiency about 98.11% and inverter-model efficiency around 96.2% in full-load.

頁數
摘要 i
Abstract ii
致謝 iii
目錄 iv
圖目錄 vii
表目錄 x
第一章 緒論 1
1.1 研究目的 1
1.2 章節大綱 1
第二章 雙向無橋交流開關交直流轉換器分析 3
2.1 整流模式 3
2.2 換流操作模式 6
2.3 各區間動作狀態分析 12
2.4 濾波器設計 21
2.4.1 濾波電路 22
第三章 控制韌體規劃 24
3.1 數位微控制器規格簡介 24
3.2 系統控制流程 26
3.2.1 雙向無橋交流開關整流模式程式流程 26
3.2.2 A/D中斷副程式 28
3.2.3 雙向無橋交流開關換流模式程式流程圖 30
第四章 電路設計與實現 31
4.1電路設計與開關元件選擇 31
4.1.1同步整流開關選擇 32
4.2磁性元件設計 32
4.2.1鐵芯選擇 33
4.2.2繞線線徑選擇 34
4.2.3電感匝數計算 34
4.3輸出電容設計 34
4.4感測電路設計 35
4.4.1直流電壓感測電路 35
4.4.2交流電壓感測電路 36
4.4.3電感電流感測電路 37
第五章 電路模擬及實測驗證 39
5.1雙向無橋交流開關交直流轉換器模擬 39
5.2雙向無橋交流開關交直流轉換器量測數據 43
5.2.1量測及儀器 44
5.3實測波形 44
5.4實測數據 49
5.5元件損耗分析 51
第六章 結論與未來展望 57
6.1結論 57
6.2未來展望 57
參考文獻 59

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