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研究生:榮世良
研究生(外文):Jung, Shih-Liang
論文名稱:數位信號處理器控制之脈寬調變換流器輸出電壓正弦合成方法之研究
論文名稱(外文):A Research on the DSP Controlled PWM Inverter for Sinusoidal Output Waveform Synthesis
指導教授:鄒應嶼鄒應嶼引用關係
指導教授(外文):Tzou, Ying-Yu
學位類別:博士
校院名稱:國立交通大學
系所名稱:控制工程系
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:1996
畢業學年度:84
語文別:中文
論文頁數:140
中文關鍵詞:數位信號處理器脈寬調變換流器狀態回授控制順滑模態控制
外文關鍵詞:DSPPWM InverterState Feedback ControlSliding Mode Control
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中文摘要
本論文針對脈寬調變換流器輸出電壓正弦合成方法進行研究,文中提出三
種應用於正弦電壓合成之數位控制架構:具有增益調適機制之最佳狀態回
授控制、具有積分補償之最佳狀態回授控制及具有前饋補償之數位式順滑
模態控制,前二者屬於線性控制技術而後者則屬於非線性控制技術。本文
所提出的數位控制器都是直接在離散領域進行設計與實現,而非以類比方
式設計再經由離散等效(discrete equivalent) 方法轉換實現。本論文由
脈寬調變換流器之離散數學模型出發,以量測數據驗證模型之精確度、建
立電腦輔助設計與模擬環境、研究應用於正弦電壓合成之線性與非線性數
位控制架構、進行穩定性及負載干擾影 響分
析、以電腦模擬驗證理論之可行性、完成以數位信號處理器為基礎之全數
位式脈寬調 變換流器控制系統之研製,本論文詳細說明全數位式脈
寬調變換流器交流穩壓控制系統之分析與設計。本論文所提出的狀態回授
控制器具有架構簡單、設計方法明確的優點,非常適合電腦輔助設計流程
。文中提出增益調適(gain scheduling) 與積分補償機制以改善狀態回授
架構於負載變動下之穩健性。論文中引入量化觀念,使設計者得以依據時
域響應規格進行量化設計。此外,本論文首次將數位式順滑模態控制理論
應用於脈寬調變換流器之正弦輸出電壓合成。文中所提出的數位式順滑模
態控制架構僅須透過輸出電壓回授即可達成閉迴路控制,大幅降低生產成
本。順滑模態控制器之順滑平面(sliding surface) 是透過最佳控制理論
進行設計,在特定狀況下能使系統具有最佳的動態響應。最後,本文以
PC-DSPLab 交談式數位控制器發展系統為基礎,建構一套脈寬調變換流器
之數位控制系統進行實驗測試。實驗結果與電腦模擬互相吻合,證明控制
架構的有效性與理論分析的正確性。
Abstract
The fully digital control of the PWM inverterfor sinusoidal
output waveform synthesis has been examined inthis dissertation.
The discrete model of the PWM inverter concerned has been
derived. The uncertainties and constraints imposedon the
controlled inverter has also been described. Three control
schemes areproposed for the closed-loop regulation of the PWM
inverter: optimal statefeedback scheme with gain scheduling
mechanism, optimal state feedback schemewith integral
compensation, and discrete sliding mode control scheme with
feedforward compensation. The first two are essentially linear
design strategies, while the last one is nonlinear by nature.
The two optimal state feedback schemes proposed in this
dissertation are simple in architecture. The optimal
feedback gains are searched by the method of steepest descent
such that the output response is optimal subject to the
selected cost function. A gain scheduling mechanism is proposed
to deal with the uncertainty caused by load variation. In
addition, we also propose an integral compensation scheme
toimprove the tracking performance of the controlled PWM
inverter. The whole design process including
searching optimal feedback gains, checking stability margin,
examining time response has been computerized. The discrete
sliding mode control scheme proposed in this dissertation is
essentially a state feedback scheme with variable gains. The
gains are designed such that thecontrolled system can match the
reference dynamics which is governed by the
sliding surface. In the proposed control scheme, a feedforward
compensator is added to improve the tracking performance as well
as lessen the burden of thesliding mode controller. In designing
the sliding mode controller, the effectof load disturbance has
been taken into consideration to enhance the robustnessof the
controlled PWM inverter. Moreover, the upper bound of the load
disturbance under which the sliding condition can be maintained
has also been derived. The sliding surface of the sliding mode
controller is designed such that the behavior of the controlled
PWM inverter is optimal subject to the selected cost function.To
verify the proposed control schemes, a PWM inverter system based
on PC-DSPLab,a dual-DSP based interactive digital controller
development system, was constructed for testing. The
mechanization of the control software under dual-DSP
architecture has been described in detail. Simulation
andexperimental results are given to confirm the theoretic
analysis and show the effectiveness of the proposed control
schemes.
Cover
Abstract(Chinese)
Abstract(English)
Acknowledgments(Chinese)
Contents
List of Figures
List of Notations
1 Introduction and Overview
2 Preliminary
2.1 Basic Definitions and Properties
2.2 Variable Structure Cintrol Methods
3 Models of Rigid Methanical Systems amd Problem Statements
3.1 Kinematic Equations
3.2 Dynamic Equations
3.3 Problem Statements
4 Sliding-Mode Control
4.1 Tracking Control of Uncerain Nonlinear System
4.2 Applications
5 Smoothing Model-Reference Sliding Control
5.1 Smoothing araeference Model
5.2 Sliding-Model Control
5.3 Performance Analysis
5.4 Application:Spacecraft Attitude Tracking Control
6 Simplex Sliding-Mode Control
6.1 Systematic Selection of a Simplex
6.2 Simplex Sliding-Model Control
6.3 Application:Robotic Position Tracking Control
7 Conclusions
Bibliography
Vita
Publication List
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