Linear permanent magnet electrodynamic suspension system: Dynamic characteristics, magnetic-mechanical coupling and filed test

Shi, Hongfu; Deng, Zigang; Ke, Zhihao; Li, Zhengyan; Zhang, Weihua

doi:10.1016/j.measurement.2023.113960

Measurement

2024

DOI: 10.1016/j.measurement.2023.113960

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Linear permanent magnet electrodynamic suspension system: Dynamic characteristics, magnetic-mechanical coupling and filed test

Hongfu Shi,

Zigang Deng,

Zhihao Ke

et al.

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Cited by 3 publications

References 39 publications

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A cost-effective linear propulsion system featuring PMEDW for HTS maglev vehicle: design, implementation, and dynamic test

Deng,

Shi,

Chen

et al. 2025

Measurement

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A cost-effective linear propulsion system featuring PMEDW for HTS maglev vehicle: design, implementation, and dynamic test

Deng,

Shi,

Chen

et al. 2025

Measurement

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Study of repulsive permanent magnetic levitation mechanism and its dynamic characteristics

Zhou,

Yang,

et al. 2024

Sci Rep

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Permanent magnet magnetic levitation (PMFL) system has the characteristics of zero-power levitation, strong load-carrying capacity and self-stabilization, so it has obvious advantages in the application of rail transportation and heavy-duty transmission and other fields. However, due to the lack of active control of electromagnetism and the existence of multi-point coupling, it is easily affected by external factors, and its dynamic characteristics and its complexity. This paper aims to reveal the levitation mechanism of permanent magnet magnetic levitation system and the coupling motion law of bogie by combining theoretical analysis and experimental verification. Firstly, the proportional and exponential correction coefficients for the magnetic induction strength are introduced to establish an analytical model for the levitation force. Secondly, the three-dimensional dynamic characteristic model of the bogie is established by analyzing the running attitude and external disturbing factors, revealing the four-point levitation coupling mechanism, and judging its stability by using the motion control theory. On this basis, input and output decoupling is realized by the method of coordinate transformation. Finally, through simulation analysis and physical experiments, the bogie motion law under various complex working conditions is explored, and the validity and reliability of the research is proved. Supplementary Information The online version contains supplementary material available at 10.1038/s41598-024-81439-2.

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Characteristics Analysis and Dynamic Test of Air-Cored Permanent Magnet Linear Synchronous Motor for Null-Flux PMEDS Vehicle

Shi,

Yang,

et al. 2024

IEEE Trans. Instrum. Meas.

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Linear permanent magnet electrodynamic suspension system: Dynamic characteristics, magnetic-mechanical coupling and filed test

Cited by 3 publications

References 39 publications

A cost-effective linear propulsion system featuring PMEDW for HTS maglev vehicle: design, implementation, and dynamic test

A cost-effective linear propulsion system featuring PMEDW for HTS maglev vehicle: design, implementation, and dynamic test

Study of repulsive permanent magnetic levitation mechanism and its dynamic characteristics

Characteristics Analysis and Dynamic Test of Air-Cored Permanent Magnet Linear Synchronous Motor for Null-Flux PMEDS Vehicle

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