Abstract
The major general control problem in Danish power stations is excessive temperature gradients in the superheater system of the boilers resulting in reduced plant lifetime, decrease in control stability and reduced plant performance. The aims were the development of an adaptive controller of general applicability in the power stations and in other industries and the dedicated aspect, improved control of the superheater temperatures in a specific power plant. The adaptive controller is based on Generalized Predictive Control (GPC). A Single Input Single Output (SISO) version which is based on the basic GPC theory, and a Multiple Input Single Output (MISO) version, which integrates feedback and feedforward in one unit are developed. As regards the dedicated part of the project goal, a detailed problem analysis is performed. This includes modelling of the Benson boiler process with the purpose of utilization in control. With the problem analysis in mind a control concept for the control of the superheater temperatures, based on the above mentioned GPC based adaptive controller and feedforward from a measure for the temperature distribution in the boiler, is put forward. The feedforward part of the superheater control concept is based on a correlation analysis, in which the percentual amount
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Citation Formats
Moelbak, T.
Optimization of boiler control. Development of adaptive and predictive strategies. Main report. Part 2; Optimering af kedelregulering. Udvikling af adaptive og praediktive strategier. Hovedrapport. Del 2.
Denmark: N. p.,
1990.
Web.
Moelbak, T.
Optimization of boiler control. Development of adaptive and predictive strategies. Main report. Part 2; Optimering af kedelregulering. Udvikling af adaptive og praediktive strategier. Hovedrapport. Del 2.
Denmark.
Moelbak, T.
1990.
"Optimization of boiler control. Development of adaptive and predictive strategies. Main report. Part 2; Optimering af kedelregulering. Udvikling af adaptive og praediktive strategier. Hovedrapport. Del 2."
Denmark.
@misc{etde_10144706,
title = {Optimization of boiler control. Development of adaptive and predictive strategies. Main report. Part 2; Optimering af kedelregulering. Udvikling af adaptive og praediktive strategier. Hovedrapport. Del 2}
author = {Moelbak, T}
abstractNote = {The major general control problem in Danish power stations is excessive temperature gradients in the superheater system of the boilers resulting in reduced plant lifetime, decrease in control stability and reduced plant performance. The aims were the development of an adaptive controller of general applicability in the power stations and in other industries and the dedicated aspect, improved control of the superheater temperatures in a specific power plant. The adaptive controller is based on Generalized Predictive Control (GPC). A Single Input Single Output (SISO) version which is based on the basic GPC theory, and a Multiple Input Single Output (MISO) version, which integrates feedback and feedforward in one unit are developed. As regards the dedicated part of the project goal, a detailed problem analysis is performed. This includes modelling of the Benson boiler process with the purpose of utilization in control. With the problem analysis in mind a control concept for the control of the superheater temperatures, based on the above mentioned GPC based adaptive controller and feedforward from a measure for the temperature distribution in the boiler, is put forward. The feedforward part of the superheater control concept is based on a correlation analysis, in which the percentual amount of oxygen in the flue gas is determined to be the best available disturbance signal. From identification results a feedforward function is designed. The project has given a basis for a commercial utilization of the GPC based adaptive controller. (AB).}
place = {Denmark}
year = {1990}
month = {Jul}
}
title = {Optimization of boiler control. Development of adaptive and predictive strategies. Main report. Part 2; Optimering af kedelregulering. Udvikling af adaptive og praediktive strategier. Hovedrapport. Del 2}
author = {Moelbak, T}
abstractNote = {The major general control problem in Danish power stations is excessive temperature gradients in the superheater system of the boilers resulting in reduced plant lifetime, decrease in control stability and reduced plant performance. The aims were the development of an adaptive controller of general applicability in the power stations and in other industries and the dedicated aspect, improved control of the superheater temperatures in a specific power plant. The adaptive controller is based on Generalized Predictive Control (GPC). A Single Input Single Output (SISO) version which is based on the basic GPC theory, and a Multiple Input Single Output (MISO) version, which integrates feedback and feedforward in one unit are developed. As regards the dedicated part of the project goal, a detailed problem analysis is performed. This includes modelling of the Benson boiler process with the purpose of utilization in control. With the problem analysis in mind a control concept for the control of the superheater temperatures, based on the above mentioned GPC based adaptive controller and feedforward from a measure for the temperature distribution in the boiler, is put forward. The feedforward part of the superheater control concept is based on a correlation analysis, in which the percentual amount of oxygen in the flue gas is determined to be the best available disturbance signal. From identification results a feedforward function is designed. The project has given a basis for a commercial utilization of the GPC based adaptive controller. (AB).}
place = {Denmark}
year = {1990}
month = {Jul}
}