Parameter Optimization Design of Axial Permanent Magnet Spherical Magnetic Bearingless Flywheel Machine

Zhu, Zhiying; Shao, Linjing; Ni, Yuhui; Cong, Bingyu

doi:10.1007/978-981-19-1870-4_80

Cited by 1 publication

(1 citation statement)

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“…This kind of idea is common in agile satellites: The French SPOT series of Earth observation satellites use the magnetic levitation flywheel as the attitude control system to achieve high-resolution Earth observation [10]. Fang Jiancheng's team at the Beijing University of Aeronautics and Astronautics (BUAA) has realized the high-precision attitude control of large remote-sensing satellites based on the magnetic levitation control moment gyroscope developed [11][12][13]. Ren Yuan's team at the University of Aerospace Engineering proposes a magnetic levitation control sensitive gyro that integrates moment output and attitude measurement to achieve attitude measurement and control of the deflected two degrees of freedom.…”

Section: Introductionmentioning

confidence: 99%

Rotating Lorentz Force Magnetic Bearings’ Dynamics Modeling and Adaptive Controller Design

Chen,

Wang,

Wang

2023

Sensors

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To address the issues of our agile satellites’ poor attitude maneuverability, low pointing stability, and pointing inaccuracy, this paper proposes a new type of stabilized platform based on seven-degree-of-freedom Lorentz force magnetic levitation. Furthermore, in this study, we designed an adaptive controller based on the RBF neural network for the rotating magnetic bearing, which can improve the pointing accuracy of satellite loads. To begin, the advanced features of the new platform are described in comparison with the traditional electromechanical platform, and the structural characteristics and working principle of the platform are clarified. The significance of rotating magnetic bearings in improving load pointing accuracy is also clarified, and its rotor dynamics model is established to provide the input and output equations. The adaptive controller based on the RBF neural network is designed for the needs of high accuracy of the load pointing, high stability, and strong robustness of the system, and the current feedback inner loop is added to improve the system stiffness and rapidity. The final simulation results show that, when compared to the PID controller and robust sliding mode controller, the controller’s pointing accuracy and anti-interference ability are greatly improved, and the system robustness is strong, which can effectively improve the pointing accuracy and pointing stability of the satellite/payload, as well as provide a powerful means of solving related problems in the fields of laser communication, high score detection, and so on.

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Section: Introductionmentioning

confidence: 99%