Power fluctuations of the rolling mill may cause the instability of electric power systems, and increase the cost of the electric power facility and electricity charges. Therefore, in order to compensate the power flu...
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This work studies the identification and control of circulation fluidized bed (CFB) boilers. The CFB boiler under investigation shows strong nonlinearity due to big changes of steam load. A linear parameter varying (L...
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This paper addresses the dissolved oxygen tracking problem in multi-zone bioreactor. The proposed approach utilizes decentralized control system incorporating fuzzy multiregional PI controllers so that satisfactory co...
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ISBN:
(纸本)9783902661913
This paper addresses the dissolved oxygen tracking problem in multi-zone bioreactor. The proposed approach utilizes decentralized control system incorporating fuzzy multiregional PI controllers so that satisfactory controller performance can be robustly and reliably achieved over a whole process operating range. A fuzzy supervisor of the completely decentralized control system is introduced in order to meet a global actuator capacity constraint. An overall control system can be implemented by using fairly standard equipment that is commonly available at a plant site.
The paper deals with a methodology of the safety codes evaluation used in the safety-related communication systems. The problems of determining the probability of undetected error of block detection codes generally us...
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This paper introduces a method of evaluating the hazardous failure rate of a safety relevant control system if the state probability distribution is given as a result of an absorbing Continuous Time Markov Chain analy...
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ISBN:
(纸本)9788070438657
This paper introduces a method of evaluating the hazardous failure rate of a safety relevant control system if the state probability distribution is given as a result of an absorbing Continuous Time Markov Chain analysis. Markov Chains with more than one absorbing state are contemplated and eventually the case study is presented.
作者：
Tran, Vu NamBrdys, Mietek A.School of Electronic
Electrical and Computer Engineering College of Engineering and Physical Sciences University of Birmingham Birmingham B15 2TT United Kingdom Department of Control Systems Engineering
Faculty of Electrical and Control Engineering Gdansk University of Technology ul. Narutowicza 11/12 80 - 233 Gdansk Poland
This paper presents a modeling technique and considers the water network distribution under three typical operating scenarios. Robustly feasible model predictive control structure and algorithms are applied to the con...
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ISBN:
(纸本)9783902661913
This paper presents a modeling technique and considers the water network distribution under three typical operating scenarios. Robustly feasible model predictive control structure and algorithms are applied to the control problem. The computing time issue of optimization solvers is addressed and improved by supplying the corresponding gradients. The analytical method of finding the required gradients intensively utilizes the Hamiltonian function. Comparisons between two different optimization solvers as well as between control strategies are verified by computer simulation under MATLAB-EPANET environment.
This paper engages in the Model Predictive control of an Air Pressure system. The Air Pressure system includes a pneumatic and an electronic part. The model of the system was created using a tool for systems identific...
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This paper engages in the Model Predictive control of an Air Pressure system. The Air Pressure system includes a pneumatic and an electronic part. The model of the system was created using a tool for systems identifications. Since the system is nonlinear we can use the model linearization and set the constraints to create the Model Predictive controller in MATLAB environment. The connectivity between PC and the air pressure system is realized by I/O card MF624. We provided the stability test as well. The PID controller was also designed to compare the results with those obtained from the Model Predictive controller of the mentioned Air Pressure control system.
An unknown input retrieving observer scheme is proposed which not only decouples unknown inputs in estimation but also gives an estimation of the decoupled input. The provided method benefits from its low computationa...
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The descriptor observer approach is improved further to a more suitable observer scheme which is applicable to a more general group of faults and systems. Also a disturbance decoupling scheme is added to the mentioned...
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Predictive control seems to be a promising approach that can help to improve properties of existing ventilation systems applied in road tunnels. Advantages of predictive control result mainly from its ability to solve...
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Predictive control seems to be a promising approach that can help to improve properties of existing ventilation systems applied in road tunnels. Advantages of predictive control result mainly from its ability to solve both SISO and MIMO tasks, to have regard for dynamics of process changes in a broad extent, to compensate effect of measurable and non-measurable failures and to formulate the task as an optimization control task considering limiting conditions of control actions, changes of control actions and output variables. Data characterizing the existing ventilation system can be used to analyze and identify the system and create its models. Thereafter the predictive control of ventilation can be designed enabling to predict concentrations of pollutants and optimize system operation.
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