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研究生:許文俊
研究生(外文):Wen-Chun Hsu
論文名稱:三相昇壓型主動式整流器之適應性定結構滑模控制
論文名稱(外文):Adaptive Fixed Structure Sliding Mode Control (AFSSMC) of An Active Three-Phase Boost Rectifier
指導教授:潘晴財
指導教授(外文):Prof. Ching-Tsai Pan
學位類別:碩士
校院名稱:國立清華大學
系所名稱:電機工程學系
學門:工程學門
學類:電資工程學類
論文種類:學術論文
論文出版年:2002
畢業學年度:90
語文別:中文
論文頁數:118
中文關鍵詞:三相昇壓型整流器適應性定結構滑模控制滑模控制
外文關鍵詞:Three-PhaseBoostRectifierAdaptive Fixed Structure Sliding Mode ControlAFSSMCSliding Mode Control
相關次數:
  • 被引用被引用:7
  • 點閱點閱:146
  • 評分評分:
  • 下載下載:0
  • 收藏至我的研究室書目清單書目收藏:0
摘 要
三相昇壓型交/直流轉換器可具有高功率因數、低輸入電流總諧波失真等優點,在工業發展中是一種相當廣泛採用的架構,例如捷運系統、直流電弧爐與交/交流轉換器之中間直流鏈等。有關此轉換器元件參數的分析與選擇於國立清華大學電力電子實驗室之研究成果中已有非常詳盡之分析與探討,可確保轉換器之穩態特性能符合國際規範。然而有關迴授控制器的採用與設計以進一步提升轉換器之動態性能則尚未涉及。
因此本論文繼續前述研究成果首先利用三相昇壓型交/直流轉換器的直流模型,由能量守衡的觀念導出一前饋控制,以達到系統之快速動態響應。接著根據轉換器之線性化小訊號模型結合國立清華大學電力電子實驗室首提之定結構滑模控制理論,可以消除傳統滑模控制的切跳現象,並達到轉換器強健控制的效果。然而由於該定結構滑模控制設計與工作點有關,當轉換器操作於該工作點以外之負載時,系統之動態響應便無法保持原設計點之優良性能,因此吾人將該控制修正成為一適應性控制來改善此現象,稱為適應性定結構滑模控制。其特點為可以使系統之極點彈性地隨不同負載而改變,使控制器能保持較佳之強健性。本論文最後實際製作一雛型電路驗證所提控制策略之可行性。其中控制器並以DSP加以數位化實現所提控制理論,不但可以減少硬體電路之體積而且方便維護及修改控制法則。
Abstract
An active three-phase boost rectifier can easily be designed to achieve high power factor and low input current distortion. Hence, it has been widely applied in the industry, such as in rapid transit systems, arc furnaces, and as a dc-link of an ac/ac converter. Analyses and LC parameters design of the boost rectifier to fulfill proper performance requirements have been detailed in a previous thesis of a graduate of this lab. However, how to design a feedback controller to further improve the dynamic performance of the rectifier has not been finished yet.
In view of these, this thesis is aimed at the design of high performance dynamic controller. First, by using the derived DC model of the rectifier, the author proposes a feedforward control by using the concept of conservation of energy to achieve a fast response due to a step load change. Then, by using the derived small signal model, the author adapts the fixed structure sliding mode control (FSSMC) of a previous dissertation of a graduate of this lab to achieve the robust control as well as eliminating the chattering phenomenon. Due to the change of the operating point of the rectifier, the originally designed FSSMC designed may not be able to maintain the nice performance for all loading conditions. Hence, the author further proposes an adaptive FSSMC to achieve better performance. Detailed theoretical basis is given in the context. Finally, a prototype is also constructed to verify the feasibility of the proposed control. The proposed controller is implemented fully digitally with a DSP to reduce hardware components, the volume and to simplify the maintenance problems.
目 錄
中文摘要 I
英文摘要 II
誌 謝 III
目 錄 IV
圖目錄 VI
表目錄 IX
第一章 緒論 1
1.1 研究動機 1
1.2 文獻回顧 2
1.3 本論文之貢獻 3
1.4 本論文之內容概述 4
第二章 數學模式之建立 6
2.1 前言 6
2.2 狀態平均模式之推導 6
2.3 動態模式與等效電路之推導 15
2.4 L、C參數之選擇 18
(A) 輸出電壓Vo之邊界條件[20] 19
(B) 電感L之邊界條件[20] 20
(C) 電容C之邊界條件[20] 21
(D) 參數L、C的設計步驟[20] 23
第三章 適應性定結構滑模控制 28
3.1 前言 28
3.2 定結構滑模控制之理論基礎 28
3.3 定結構滑模控制 35
3.3 適應性定結構滑模控制 58
3.4 模擬結果 69
第四章 實體電路製作與實測結果 74
4.1 前言 74
4.2 實體電路製作 75
4.2.1電力電路 77
4.2.2控制電路 77
4-3 實測結果 86
第五章 結論 96
參考文獻 98
附錄A 閉迴路系統矩陣及特徵方程式之推導 104
附錄B 定結構滑模控制極點加成性定理 106
附錄C.1 定結構滑模控制模擬方塊圖 109
附錄C.2 適應性定結構滑模控制中次系統(Control Block)模
擬方塊圖 111
附錄D DSP程式 112
參考文獻
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