Performance comparison between PI digital and fuzzy controllers in a level control system
Liquid level systems are important in many industrial and academic applications, so measurement and control systems need to be as accurate as possible for this process. However, a level system has a nonlinear dynamic which increases the difficulty of modelling and design controller by classical meth...
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| Published in | Journal of Mechatronics Engineering Vol. 2; no. 3; pp. 10 - 18 |
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| Main Authors | , |
| Format | Journal Article |
| Language | English |
| Published |
18.11.2019
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| Online Access | Get full text |
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| Summary: | Liquid level systems are important in many industrial and academic applications, so measurement and control systems need to be as accurate as possible for this process. However, a level system has a nonlinear dynamic which increases the difficulty of modelling and design controller by classical methods. In order to address these issues, this paper discusses the modeling of a nonlinear level plant and the implementation of strategies for PI control and fuzzy control. The control algorithms are embedded in an 8 bits microcontroller, which provides the plant sample data via serial communication. Response specifications are stipulated so that the performance of the controllers is evaluated and compared. The results show a better performance for the fuzzy controller which could avoid larges overshoots with low computation costs and none anti-windup strategies. |
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| ISSN: | 2595-3230 2595-3230 |
| DOI: | 10.21439/jme.v2i3.28 |