A Disturbance Force Compensation Framework for a Magnetic Suspension Balance System

The research on the dynamic characteristics of vehicles requires wind tunnel tests. The natural mass frequency of the support mechanism and the interference of the support mechanism on the flow field will greatly reduce the repeatability and accuracy of the experimental results. The magnetic suspens...

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Bibliographic Details
Published inActuators Vol. 12; no. 3; p. 98
Main Authors Xia, Wentao, Dou, Fengshan, Long, Zhiqiang
Format Journal Article
LanguageEnglish
Published Basel MDPI AG 01.03.2023
Subjects
Accuracy
Aerodynamic loads
Algorithms
Analysis
Compensation
Control algorithms
Control systems
Control theory
disturbance rejection control
Dynamic characteristics
electromagnetic field modeling
Electromagnetic forces
Electromagnetism
Interference
Magnetic fields
Magnetic levitation
MSBS
Permeability
Proportional integral derivative
Sensors
suspension control
wind tunnel experiments
Wind tunnel testing
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Summary:The research on the dynamic characteristics of vehicles requires wind tunnel tests. The natural mass frequency of the support mechanism and the interference of the support mechanism on the flow field will greatly reduce the repeatability and accuracy of the experimental results. The magnetic suspension and balance system (MSBS) uses non-contact electromagnetic force instead of mechanical support to eliminate the support mechanism’s interference with the test results. The MSBS needs to actively adjust the electromagnetic force to control the position of the tested model. At present, its control strategy is PID control. However, when the wind tunnel is opened, there will be large aerodynamic loads, leading to large changes in displacement. We propose a disturbance compensation control algorithm framework that can quickly estimate the external force disturbance and quickly compensate it to the control loop, reduce the influence of the disturbance on the control system, and provide stability and accuracy of displacement control.
ISSN:2076-0825
2076-0825
DOI:10.3390/act12030098