Modeling and Optimization of Electromagnetic Conversion Coupling Coefficient Based on Maxwell’s Magnetic Field Theory

Huang, Xingbao

doi:10.1007/s42417-023-01006-3

Cited by 2 publications

(1 citation statement)

References 24 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…(1) Axial magnetic field: For axially magnetized heteropolar PMs, the axial flux density B z can be calculated by the composite magnetic field of superimposed double PMs. The comprehensive integral expression can be formulated as follows [25]…”

Section: Sensing System Modelingmentioning

confidence: 99%

Gap distance sensing for non-magnetic medium based on magnetoelectric effect under spatial separation condition

Zhang,

Xia,

Zhang

et al. 2024

J. Phys. D: Appl. Phys.

View full text Add to dashboard Cite

This paper presents a novel non-contact spatial gap distance sensing (GDS) method that can provide distance information in spatial separation conditions. In many applications, such as enclosed environments, it could not provide the desired measurement of gap distance of internal non-magnetic medium due to the constraints of physical barriers and poor accessibility. Therefore, a non-invasive sensing system is designed to measure spatial gap distance for non-magnetic medium. The developed sensor system consists of a pair of heteropolar permanent magnets (PMs), a non-magnetic medium, a magnetostrictive-piezoelectric composite unit and an external space, which has the function of spatial separation measurement. By exploiting the magnetoelectric (ME) effect, the magneto-machine-electric conversion is achieved by sensing the spatial magnetic field generated by the heteropolar PMs. The coupling modeling, analysis and calibration of sensing system are conducted, and the system prototype is designed and manufactured. Additionally, the performances of the GDS are experimentally validated. Static gap distance (plate thickness) measurements of the plate and variable gap distance (instant water height) measurements of water are performed, and resolution, vibration, and drift tests are carried out. The results show the accuracy and stability of non-contact spatial gap distance detection for non-magnetic medium, highlighting its potential in various applications.

show abstract

Section: Sensing System Modelingmentioning

confidence: 99%

Gap distance sensing for non-magnetic medium based on magnetoelectric effect under spatial separation condition

Zhang,

Xia,

Zhang

et al. 2024

J. Phys. D: Appl. Phys.

View full text Add to dashboard Cite

show abstract

Structural Design and Electromagnetic Performance Analysis of Octupole Active Radial Magnetic Bearing

Zhu,

Lu,

Shao

2024

Sensors

View full text Add to dashboard Cite

This study addresses the challenges of magnetic circuit coupling and control complexity in active radial magnetic bearings (ARMBs) by systematically investigating the electromagnetic performance of four magnetic pole configurations (NNSS, NSNS, NNNN, and SSSS). Initially, equivalent magnetic circuit modeling and finite element analysis (FEA) were employed to analyze the magnetic circuit coupling phenomena and their effects on the magnetic flux density distribution for each configuration. Subsequently, the air gap flux density and electromagnetic force were quantified under rotor eccentricity caused by unbalanced disturbances, and the dynamic performances of the ARMBs were evaluated for eccentricity along the x-axis and at 45°. Finally, experiments measured the electromagnetic forces acting on the rotor under the NNSS and NSNS configurations during eccentric conditions. The results indicate that the NNSS configuration significantly reduces magnetic circuit coupling, improves the uniformity of electromagnetic force distribution, and offers superior stability and control efficiency under asymmetric conditions. Experimental results deviated by less than 10% from the simulations, confirming the reliability and practicality of the proposed design. These findings provide valuable insights for optimizing ARMB pole configurations and promote their application in high-speed, high-precision industrial fields such as aerospace and power engineering.

show abstract

Modeling and Optimization of Electromagnetic Conversion Coupling Coefficient Based on Maxwell’s Magnetic Field Theory

Cited by 2 publications

References 24 publications

Gap distance sensing for non-magnetic medium based on magnetoelectric effect under spatial separation condition

Gap distance sensing for non-magnetic medium based on magnetoelectric effect under spatial separation condition

Structural Design and Electromagnetic Performance Analysis of Octupole Active Radial Magnetic Bearing

Contact Info

Product

Resources

About