臺灣博碩士論文加值系統

為了使切換式直流電源轉換器擁有良好之性能，故迴授控制器與電路元件參數的設計是一個重要的課題。本論文主要應用Matlab/Simulink 動態行為模型來輔助設計降壓型電力轉換器、返馳式電力轉換器與升壓型電力轉換器的性能、穩定度。除了建立三種轉換器模型，還分析其所使用的脈波寬度調變(PWM)控制IC，UC3525、UC3842與功率因數修正(PFC) IC L6561，根據IC內部電路操作功能於Simulink環境建立出對應的行為模型。模擬過程可快速即時的於參數設定視窗調整不同的元件參數，並使用Scope模塊取得模型中任意位置的模擬結果，節省實際電路驗證的時間。本論文也分別製作此三種實際電路以驗證Simulink模型的可行性，實驗結果證明，由Matlab/Simulink軟體設計推估出的參數，應用於實作電路時，均接近欲設計之目標，並可獲得良好之操控性能。

Switching-mode power converters are widely applied in the consumer electronic devices. In order to control the timing of product to market and curtail the schedule of research and development, a computer-aided simulation and design integrated platform of switching power converter based on the Matlab/Simulink behavior model is proposed in this thesis. The proposed system can speed up the controller design procedure and forecast the output response of converter accurately based on the consideration of system nonlinearity and uncertainty.
The Simulink behavior models are constructed according to the commercially available PWM control ICs with the consideration of error amplifier output saturation and bandwidth limit and practical switching power converter circuits. The system design guideline, including power circuit modeling, control algorithm and feedback compensator topologies, small-signal model derivation of power converter with controller, Simulink behavior models creation, control parameters determination, tuning, and performance validation, are involved in this thesis.
Three power converters with various controllers which are composed of three available commercial PWM ICs (UC3525, UC3842, L6561) is taken as design and simulation examples to build the Simulink behavior models by using the proposed computer-aided integrated development environment. The measure performances of simulation time, convergence issue, and dynamic response will be discussed to verify the feasibility, effectiveness and performance of the proposed system.

中文摘要 i
英文摘要 ii
誌謝 iv
目錄 v
表目錄 vii
圖目錄 viii
第一章 緒論 1
1.1 研究背景及動機 1
1.2 文獻回顧 2
1.3 論文大綱 4
第二章 UC3525脈波寬度調變控制降壓型電力轉換 5
2.1 降壓型電力轉換器小信號模型推導 6
2.2 使用MATALB分析直流穩態工作點 11
2.3 建立降壓型電力轉換器電路Simulink模型 16
2.4 建立控制電路Simulink模型 20
2.5 模擬與實作結果 28
第三章 UC3842脈波寬度調變控制返馳式電力轉換器 36
3.1 返馳式電力轉換器小信號模型推導 36
3.2 使用MATALB分析直流穩態工作點 42
3.3 建立返馳式電力轉換器電路Simulink模型 45
3.4 建立控制電路Simulink模型 51
3.5 模擬與實作結果 60
第四章 功率因數修正器 67
4.1 小信號模型推導 67
4.2 使用MATALB模擬分析 72
4.3建立臨界導通模式功因修正電路模型 75
4.4 建立控制電路Simulink模型 79
4.5 模擬與實作結果 87
第五章 結論與未來研究方向 98
參考文獻 99
符號說明 103

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