Unbalanced Magnetic Pull Disturbance Compensation of Magnetic Bearing Systems in MSCCs

Han, Xue; Liu, Gang; Le, Yun; Dong, Baotian; Zheng, Shiqiang

doi:10.1109/tie.2022.3181406

Cited by 8 publications

(1 citation statement)

References 26 publications

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“…A magnetic bearing (MB) supports the rotor in the air without any contact through Maxwell force, and it has advantages such as having no friction, no wear, no lubrication, no pollution, easy maintenance, etc., so it is of great significance for the electric drives which work in special occasions, such as compressors [1][2][3], flywheels [4][5][6], gyros [7][8][9], etc., In [10], a HALBACH axial passive MB was proposed to suspend the axial direction of the rotor with low losses, but the axial direction of the rotor could not be actively controlled. In [11], an active MB was used to actively control the radial direction of the rotor, but it required coils to provide the bias fluxes.…”

Section: Introductionmentioning

confidence: 99%

Electromagnetic Characteristics and Capacity Analysis of a Radial–Axial Hybrid Magnetic Bearing with Two Different Radial Stators

Zhu

2023

Electronics

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Compared with the widely used four-pole magnetic bearings, three-pole magnetic bearings are driven by a three-phase power inverter and have advantages pertaining to their small volume, low costs, and low power losses. However, the asymmetric structure of the three-pole bearings presents disadvantages in terms of their strong nonlinearity and couplings among the suspension forces of the control currents and displacements. The radial–axial hybrid magnetic bearing (RAHMB) with six-pole bearings is proposed to solve this problem. Firstly, the structure and working principle of the RAHMB are introduced. Secondly, the mathematical models of the RAHMB are established, and in order to obtain the radial capacity, the maximum suspension forces of the three-pole and six-pole RAHMBs are theoretically analyzed. Thirdly, the nonlinearity and couplings of the suspension forces with the control currents and displacements are analyzed. The radial capacity of the three-pole and six-pole RAHMB is 74.6 N and 83.6 N, respectively, which is an increase of 12.0%. Finally, the experiment results prove that the nonlinearity and couplings of the six-pole RAHMB are smaller than the nonlinearity and couplings of the three-pole RAHMB, and the maximum radial capacity of the three-pole and six-pole RAHMB is 84.1 N and 94.8 N, respectively, which is an increase of 12.7%. The simulation results are basically consistent with the experimental results, indicating the correctness of the theoretical analysis.

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Section: Introductionmentioning

confidence: 99%

Electromagnetic Characteristics and Capacity Analysis of a Radial–Axial Hybrid Magnetic Bearing with Two Different Radial Stators

Zhu

2023

Electronics

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Multiple Observer Adaptive Fusion for Uncertainty Estimation and Its Application to Wheel Velocity Systems

Zheng,

Jiang,

et al. 2024

IEEE Trans. Cybern.

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The Influence of PID Controller Parameters on Polarity Switching Control for Unbalance Compensation of Active Magnetic Bearings Rotor Systems

Lei,

Changsheng

2024

IEEE Trans. Ind. Electron.

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Unbalanced Magnetic Pull Disturbance Compensation of Magnetic Bearing Systems in MSCCs

Cited by 8 publications

References 26 publications

Electromagnetic Characteristics and Capacity Analysis of a Radial–Axial Hybrid Magnetic Bearing with Two Different Radial Stators

Electromagnetic Characteristics and Capacity Analysis of a Radial–Axial Hybrid Magnetic Bearing with Two Different Radial Stators

Multiple Observer Adaptive Fusion for Uncertainty Estimation and Its Application to Wheel Velocity Systems

The Influence of PID Controller Parameters on Polarity Switching Control for Unbalance Compensation of Active Magnetic Bearings Rotor Systems

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