Dynamikstudier på ett ångkraftverk
(1976) In MSc ThesesDepartment of Automatic Control
- Abstract
- The goal of this work is to build a dynamic model for a steam power plant, using frequency and step-response analysis and use it for construction of an automatic controlling system. The model is to simulate all the variables necessary for controlling with reasonable accuracy. <br><br> By using measurements at a power plant in x 14rebro, the transfer functions for the most important steam pressures and process temperatures were determined. With those transfer functions as a ground several alternative dynamical models were analyzed. One of them was chosen as the most useful for the computer simulation. <br><br> The process outputs that were important for controlling purposes were fed back and controlled, and the optimal parameters for the... (More)
- The goal of this work is to build a dynamic model for a steam power plant, using frequency and step-response analysis and use it for construction of an automatic controlling system. The model is to simulate all the variables necessary for controlling with reasonable accuracy. <br><br> By using measurements at a power plant in x 14rebro, the transfer functions for the most important steam pressures and process temperatures were determined. With those transfer functions as a ground several alternative dynamical models were analyzed. One of them was chosen as the most useful for the computer simulation. <br><br> The process outputs that were important for controlling purposes were fed back and controlled, and the optimal parameters for the controllers were chosen by repeated simulations. The interactive computer program "Simnon" was used. The computer plottings of the feedback-systems show that the controllers satisfy the requirements. <br><br> A model based on physical laws was built for the turbine with condenser. This model was used to study the temperature- and pressure changes. The resulting pressure changes were fairly accurate, but for the temperature changes the model was too simple, so that the first model is more efficient for feedback and control. (Less)
Please use this url to cite or link to this publication:
http://lup.lub.lu.se/student-papers/record/8850282
- author
- Hodosi, Georg and Flato, Jerzy
- supervisor
- organization
- year
- 1976
- type
- H3 - Professional qualifications (4 Years - )
- subject
- publication/series
- MSc Theses
- report number
- TFRT-5181
- ISSN
- 0346-5500
- language
- Swedish
- id
- 8850282
- date added to LUP
- 2016-03-29 15:39:49
- date last changed
- 2016-03-29 15:39:49
@misc{8850282,
abstract = {{The goal of this work is to build a dynamic model for a steam power plant, using frequency and step-response analysis and use it for construction of an automatic controlling system. The model is to simulate all the variables necessary for controlling with reasonable accuracy. <br><br> By using measurements at a power plant in x 14rebro, the transfer functions for the most important steam pressures and process temperatures were determined. With those transfer functions as a ground several alternative dynamical models were analyzed. One of them was chosen as the most useful for the computer simulation. <br><br> The process outputs that were important for controlling purposes were fed back and controlled, and the optimal parameters for the controllers were chosen by repeated simulations. The interactive computer program "Simnon" was used. The computer plottings of the feedback-systems show that the controllers satisfy the requirements. <br><br> A model based on physical laws was built for the turbine with condenser. This model was used to study the temperature- and pressure changes. The resulting pressure changes were fairly accurate, but for the temperature changes the model was too simple, so that the first model is more efficient for feedback and control.}},
author = {{Hodosi, Georg and Flato, Jerzy}},
issn = {{0346-5500}},
language = {{swe}},
note = {{Student Paper}},
series = {{MSc Theses}},
title = {{Dynamikstudier på ett ångkraftverk}},
year = {{1976}},
}