研究生: |
Phung Van Hiep Phung - Van Hiep |
---|---|
論文名稱: |
Theoretical Control and Experimental Verification of a Calender Roller System Theoretical Control and Experimental Verification of a Calender Roller System |
指導教授: |
郭中豐
Chung-Feng Jeffrey Kuo |
口試委員: |
張嘉德
Chia-Der Chang 黃昌群 Chang Chiun Huang |
學位類別: |
碩士 Master |
系所名稱: |
工程學院 - 自動化及控制研究所 Graduate Institute of Automation and Control |
論文出版年: | 2009 |
畢業學年度: | 97 |
語文別: | 英文 |
論文頁數: | 66 |
中文關鍵詞: | roller system 、distributed parameter system 、model predictive control 、state estimate |
外文關鍵詞: | roller system, distributed parameter system, model predictive control, state estimate |
相關次數: | 點閱:518 下載:0 |
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Control of amount of deflection which is produced by the pressing and pressed rollers in calender system is big challenge in industrial fiber. Normally, trial and error is used to determine each dimension of both rollers. Hence, objective of this thesis is dealing with the control of the pressed roller to get high quality of the calendering products. Both theoretical control and experimental verification are performed.
Firstly, the pressed roller is assumed as an Euler-Bernoulli beam and the forces which are produced by pressing roller are considered as distributed forces. The mathematical model of the system is derived as a distributed parameter system using Hamilton’s principle, Lagrange’s equations and assumed-modes method. System model is a two-input one-output system. Since the distributed forces are constants, system can be simplified to single-input single-output system by changing variables. In order to investigate effect of non-collocation sensor and actuator, positions of sensor and actuator are also considered as arbitrarily.
Then, an advanced control technique, Model Predictive Control (MPC), is used in this thesis. Because it has high robustness so it can deal with model uncertainties and other disturbances. A state estimator is designed in order to avoid using a lot of sensors. A new control structure is build up by combining the state estimator with traditional MPC controller. It is called Model predictive control with a state estimator (MPC-SE) controller. Computer simulations using MATLAB software are carried out.
Proposed control structure is experimented on PC-based control system with RT-ADC4/PCI card and real-time control software, VisSim. Positions of sensor and actuator are chosen different. This not only investigates non-allocation problem but also solves physical problem. It is impossible to locate two devices in only one point. Experimental results confirm the feasibility of the proposed controller as well.
Control of amount of deflection which is produced by the pressing and pressed rollers in calender system is big challenge in industrial fiber. Normally, trial and error is used to determine each dimension of both rollers. Hence, objective of this thesis is dealing with the control of the pressed roller to get high quality of the calendering products. Both theoretical control and experimental verification are performed.
Firstly, the pressed roller is assumed as an Euler-Bernoulli beam and the forces which are produced by pressing roller are considered as distributed forces. The mathematical model of the system is derived as a distributed parameter system using Hamilton’s principle, Lagrange’s equations and assumed-modes method. System model is a two-input one-output system. Since the distributed forces are constants, system can be simplified to single-input single-output system by changing variables. In order to investigate effect of non-collocation sensor and actuator, positions of sensor and actuator are also considered as arbitrarily.
Then, an advanced control technique, Model Predictive Control (MPC), is used in this thesis. Because it has high robustness so it can deal with model uncertainties and other disturbances. A state estimator is designed in order to avoid using a lot of sensors. A new control structure is build up by combining the state estimator with traditional MPC controller. It is called Model predictive control with a state estimator (MPC-SE) controller. Computer simulations using MATLAB software are carried out.
Proposed control structure is experimented on PC-based control system with RT-ADC4/PCI card and real-time control software, VisSim. Positions of sensor and actuator are chosen different. This not only investigates non-allocation problem but also solves physical problem. It is impossible to locate two devices in only one point. Experimental results confirm the feasibility of the proposed controller as well.
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