Digital Control Analysis and Design of a Field-Sensed Magnetic Suspension System
Magnetic suspension systems are mechatronic systems and crucial in several engineering applications, such as the levitation of high-speed trains, frictionless bearings, and wind tunnels. Magnetic suspension systems are nonlinear and unstable systems; therefore, they are suitable educational benchmar...
| Main Authors: | , |
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| Format: | Article |
| Language: | English |
| Published: |
MDPI AG
2015-03-01
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| Series: | Sensors |
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| Online Access: | http://www.mdpi.com/1424-8220/15/3/6174 |
| _version_ | 1811186175696699392 |
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| author | Jen-Hsing Li Juing-Shian Chiou |
| author_facet | Jen-Hsing Li Juing-Shian Chiou |
| author_sort | Jen-Hsing Li |
| collection | DOAJ |
| description | Magnetic suspension systems are mechatronic systems and crucial in several engineering applications, such as the levitation of high-speed trains, frictionless bearings, and wind tunnels. Magnetic suspension systems are nonlinear and unstable systems; therefore, they are suitable educational benchmarks for testing various modeling and control methods. This paper presents the digital modeling and control of magnetic suspension systems. First, the magnetic suspension system is stabilized using a digital proportional-derivative controller. Subsequently, the digital model is identified using recursive algorithms. Finally, a digital mixed linear quadratic regulator (LQR)/H∞ control is adopted to stabilize the magnetic suspension system robustly. Simulation examples and a real-world example are provided to demonstrate the practicality of the study results. In this study, a digital magnetic suspension system model was developed and reviewed. In addition, equivalent state and output feedback controls for magnetic suspension systems were developed. Using this method, the controller design for magnetic suspension systems was simplified, which is the novel contribution of this study. In addition, this paper proposes a complete digital controller design procedure for magnetic suspension systems. |
| first_indexed | 2024-04-11T13:41:18Z |
| format | Article |
| id | doaj.art-df082513086a43bf8f3bfc0bb6b4d617 |
| institution | Directory Open Access Journal |
| issn | 1424-8220 |
| language | English |
| last_indexed | 2024-04-11T13:41:18Z |
| publishDate | 2015-03-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Sensors |
| spelling | doaj.art-df082513086a43bf8f3bfc0bb6b4d6172022-12-22T04:21:14ZengMDPI AGSensors1424-82202015-03-011536174619510.3390/s150306174s150306174Digital Control Analysis and Design of a Field-Sensed Magnetic Suspension SystemJen-Hsing Li0Juing-Shian Chiou1Department of Electrical Engineering, Kun Shan University, 195 Kunda Road, Yongkang District, Tainan City 710, TaiwanDepartment of Electrical Engineering, Southern Taiwan University of Science and Technology, 1 Nan Ti Street, Yongkang District, Tainan City 710, TaiwanMagnetic suspension systems are mechatronic systems and crucial in several engineering applications, such as the levitation of high-speed trains, frictionless bearings, and wind tunnels. Magnetic suspension systems are nonlinear and unstable systems; therefore, they are suitable educational benchmarks for testing various modeling and control methods. This paper presents the digital modeling and control of magnetic suspension systems. First, the magnetic suspension system is stabilized using a digital proportional-derivative controller. Subsequently, the digital model is identified using recursive algorithms. Finally, a digital mixed linear quadratic regulator (LQR)/H∞ control is adopted to stabilize the magnetic suspension system robustly. Simulation examples and a real-world example are provided to demonstrate the practicality of the study results. In this study, a digital magnetic suspension system model was developed and reviewed. In addition, equivalent state and output feedback controls for magnetic suspension systems were developed. Using this method, the controller design for magnetic suspension systems was simplified, which is the novel contribution of this study. In addition, this paper proposes a complete digital controller design procedure for magnetic suspension systems.http://www.mdpi.com/1424-8220/15/3/6174magnetic field sensormagnetic suspension systemdigital modeloutput feedback controlstate feedback controlmixed LQR/H∞ control |
| spellingShingle | Jen-Hsing Li Juing-Shian Chiou Digital Control Analysis and Design of a Field-Sensed Magnetic Suspension System Sensors magnetic field sensor magnetic suspension system digital model output feedback control state feedback control mixed LQR/H∞ control |
| title | Digital Control Analysis and Design of a Field-Sensed Magnetic Suspension System |
| title_full | Digital Control Analysis and Design of a Field-Sensed Magnetic Suspension System |
| title_fullStr | Digital Control Analysis and Design of a Field-Sensed Magnetic Suspension System |
| title_full_unstemmed | Digital Control Analysis and Design of a Field-Sensed Magnetic Suspension System |
| title_short | Digital Control Analysis and Design of a Field-Sensed Magnetic Suspension System |
| title_sort | digital control analysis and design of a field sensed magnetic suspension system |
| topic | magnetic field sensor magnetic suspension system digital model output feedback control state feedback control mixed LQR/H∞ control |
| url | http://www.mdpi.com/1424-8220/15/3/6174 |
| work_keys_str_mv | AT jenhsingli digitalcontrolanalysisanddesignofafieldsensedmagneticsuspensionsystem AT juingshianchiou digitalcontrolanalysisanddesignofafieldsensedmagneticsuspensionsystem |