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Diab Control System
Halmstad University, School of Information Technology.
Halmstad University, School of Information Technology.
2018 (English)Independent thesis Basic level (university diploma), 10 credits / 15 HE creditsStudent thesis
Abstract [en]

In order to control a system or process a PID-regulator is often used although they can be difficult to tune so that they give the system a preferred behaviour. The goal with this project is to tune a PID-controller that controls the temperature of a large water tank. The initial systems temperature fluctuates around the set temperature by +/- 1◦C and our goal is to reduce it to +/- 0.5◦C. The project will use the parametric method of a step response in order to evaluate the systems behaviour into a transfer function model that can be PID-tuned.

The system was modeled into a a first order model that matches the heating and cooling separately although not together since they have different time constants. Therefore a second order model was made. This model did not match the collected data very good but is used to get a better understanding of the system and figure out what kind of parameters that are required in order to create a better matching model.

The final conclusion is that in order to get a matching transfer function of the plant a second order model or higher must be uses and also that more data distributed along more parameters need to be logged in order to understand the entire system behaviour.

Place, publisher, year, edition, pages
2018.
National Category
Control Engineering
Identifiers
URN: urn:nbn:se:hh:diva-37011OAI: oai:DiVA.org:hh-37011DiVA, id: diva2:1217173
External cooperation
Diab
Subject / course
Mechatronics
Educational program
Mechatronic Engineer, 180 credits
Supervisors
Examiners
Available from: 2018-06-19 Created: 2018-06-12 Last updated: 2018-06-19Bibliographically approved

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CiteExportLink to record
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Citation style
  • apa
  • ieee
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  • de-DE
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Output format
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