Principles for tuning heat zone controllers in a belt furnace through modeling and simulation
(2018)Department of Automatic Control
- Abstract
- In this thesis the heating area of a belt furnace for annealing metal powder has been modeled. The model was extended with PI-controllers for controlling the energy added to the model. It was simulated with differently tuned controllers to test tuning principles for finding suitable control parameters for the process. The most promising tuning principles was then written as a manual with the aim for process engineers at Höganäs AB.
The process is running on a daily basis with control parameters that causes unnecessary overshoots and oscillations in the system.With updated and more suitable control parameters, the furnace is believed to be more efficient. Höganäs has several processes of the same type which the manual could be applied... (More) - In this thesis the heating area of a belt furnace for annealing metal powder has been modeled. The model was extended with PI-controllers for controlling the energy added to the model. It was simulated with differently tuned controllers to test tuning principles for finding suitable control parameters for the process. The most promising tuning principles was then written as a manual with the aim for process engineers at Höganäs AB.
The process is running on a daily basis with control parameters that causes unnecessary overshoots and oscillations in the system.With updated and more suitable control parameters, the furnace is believed to be more efficient. Höganäs has several processes of the same type which the manual could be applied to.
The process consists of non-linear thermal radiation, conduction and convection. It is very slow and has approximately no dead time, thus excluding many tuning principles that rely on the dead time. The most promising tuning principle to apply is the lambda-tuning principle which is often used in the process industry [Åström and Hägglund, 2006]. Due to the accuraccy of the model, the design parameter was choosen to ensure stability and monotonic setpoint changes. The manual can be found in Appendix D. (Less)
Please use this url to cite or link to this publication:
http://lup.lub.lu.se/student-papers/record/8960442
- author
- Fryklund, Henrik
- supervisor
- organization
- year
- 2018
- type
- H3 - Professional qualifications (4 Years - )
- subject
- report number
- TFRT-6068
- ISSN
- 0280-5316
- language
- English
- id
- 8960442
- date added to LUP
- 2018-10-29 10:48:54
- date last changed
- 2018-10-29 10:48:54
@misc{8960442,
abstract = {{In this thesis the heating area of a belt furnace for annealing metal powder has been modeled. The model was extended with PI-controllers for controlling the energy added to the model. It was simulated with differently tuned controllers to test tuning principles for finding suitable control parameters for the process. The most promising tuning principles was then written as a manual with the aim for process engineers at Höganäs AB.
The process is running on a daily basis with control parameters that causes unnecessary overshoots and oscillations in the system.With updated and more suitable control parameters, the furnace is believed to be more efficient. Höganäs has several processes of the same type which the manual could be applied to.
The process consists of non-linear thermal radiation, conduction and convection. It is very slow and has approximately no dead time, thus excluding many tuning principles that rely on the dead time. The most promising tuning principle to apply is the lambda-tuning principle which is often used in the process industry [Åström and Hägglund, 2006]. Due to the accuraccy of the model, the design parameter was choosen to ensure stability and monotonic setpoint changes. The manual can be found in Appendix D.}},
author = {{Fryklund, Henrik}},
issn = {{0280-5316}},
language = {{eng}},
note = {{Student Paper}},
title = {{Principles for tuning heat zone controllers in a belt furnace through modeling and simulation}},
year = {{2018}},
}