A Water Tank Level Control System with Time Lag Using CGSA and Nonlinear Switch Decoration
Tank level control has some unavoidable factors such as disturbance, non-linearity, and time lag. This paper proposes a simple and robust control scheme with nice energy-saving effects and smooth output to improve the quality of the controller and meet real-world application requirements. A linear c...
| Main Authors: | , , |
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| Format: | Article |
| Language: | English |
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MDPI AG
2023-01-01
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| Series: | Applied System Innovation |
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| Online Access: | https://www.mdpi.com/2571-5577/6/1/12 |
| _version_ | 1797622461394583552 |
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| author | Weifeng Xu Xianku Zhang Haoze Wang |
| author_facet | Weifeng Xu Xianku Zhang Haoze Wang |
| author_sort | Weifeng Xu |
| collection | DOAJ |
| description | Tank level control has some unavoidable factors such as disturbance, non-linearity, and time lag. This paper proposes a simple and robust control scheme with nice energy-saving effects and smooth output to improve the quality of the controller and meet real-world application requirements. A linear controller is first designed using a third-order closed-loop gain-shaping algorithm. We then use an arcsine function to modify the system with non-linear switching to reduce the effect of the non-linear modification on the dynamic performance of the control system. Furthermore, we use the Nyquist stability criterion to demonstrate the stability of the closed-loop system in the presence of time lag. The results of the final simulation experiment show that the controller not only has high control quality but also has the characteristics of energy saving and smooth output under the condition of lag and pump performance constraints. These features are necessary for extending the life of the pump and enhancing the applicability of the tank level controller. |
| first_indexed | 2024-03-11T09:10:37Z |
| format | Article |
| id | doaj.art-010a40f2e39d4dd582a110d7df22b8b9 |
| institution | Directory Open Access Journal |
| issn | 2571-5577 |
| language | English |
| last_indexed | 2024-03-11T09:10:37Z |
| publishDate | 2023-01-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Applied System Innovation |
| spelling | doaj.art-010a40f2e39d4dd582a110d7df22b8b92023-11-16T19:01:03ZengMDPI AGApplied System Innovation2571-55772023-01-01611210.3390/asi6010012A Water Tank Level Control System with Time Lag Using CGSA and Nonlinear Switch DecorationWeifeng Xu0Xianku Zhang1Haoze Wang2Navigation College, Dalian Maritime University, Dalian 116026, ChinaNavigation College, Dalian Maritime University, Dalian 116026, ChinaNavigation College, Dalian Maritime University, Dalian 116026, ChinaTank level control has some unavoidable factors such as disturbance, non-linearity, and time lag. This paper proposes a simple and robust control scheme with nice energy-saving effects and smooth output to improve the quality of the controller and meet real-world application requirements. A linear controller is first designed using a third-order closed-loop gain-shaping algorithm. We then use an arcsine function to modify the system with non-linear switching to reduce the effect of the non-linear modification on the dynamic performance of the control system. Furthermore, we use the Nyquist stability criterion to demonstrate the stability of the closed-loop system in the presence of time lag. The results of the final simulation experiment show that the controller not only has high control quality but also has the characteristics of energy saving and smooth output under the condition of lag and pump performance constraints. These features are necessary for extending the life of the pump and enhancing the applicability of the tank level controller.https://www.mdpi.com/2571-5577/6/1/12level controlclosed-loop gain-shapingnonlinear switching modificationtime-lag system |
| spellingShingle | Weifeng Xu Xianku Zhang Haoze Wang A Water Tank Level Control System with Time Lag Using CGSA and Nonlinear Switch Decoration Applied System Innovation level control closed-loop gain-shaping nonlinear switching modification time-lag system |
| title | A Water Tank Level Control System with Time Lag Using CGSA and Nonlinear Switch Decoration |
| title_full | A Water Tank Level Control System with Time Lag Using CGSA and Nonlinear Switch Decoration |
| title_fullStr | A Water Tank Level Control System with Time Lag Using CGSA and Nonlinear Switch Decoration |
| title_full_unstemmed | A Water Tank Level Control System with Time Lag Using CGSA and Nonlinear Switch Decoration |
| title_short | A Water Tank Level Control System with Time Lag Using CGSA and Nonlinear Switch Decoration |
| title_sort | water tank level control system with time lag using cgsa and nonlinear switch decoration |
| topic | level control closed-loop gain-shaping nonlinear switching modification time-lag system |
| url | https://www.mdpi.com/2571-5577/6/1/12 |
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