Stability Assessment of the High-Speed Flywheel with AMBs on a Rotating Platform

Yulan Zhao, Pingfan Liu, Qichao Lv, Kai Zhang and Lei Zhao ()
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Yulan Zhao: Key Laboratory of Agricultural Renewable Resource Utilization Technology, Harbin 150030, China
Pingfan Liu: Flywheel Battery R&D Centre, Research Institute of Tsinghua University in Shenzhen (RITS), Shenzhen 518057, China
Qichao Lv: Shanghai Aerospace Control Technology Institute, Shanghai 200215, China
Kai Zhang: Institute of Nuclear and New Energy Technology, Tsinghua University, Beijing 100084, China
Lei Zhao: Institute of Nuclear and New Energy Technology, Tsinghua University, Beijing 100084, China

Energies, 2024, vol. 17, issue 11, 1-28

Abstract: With the continuous improvement of the performance and capabilities of spacecrafts, the application of active magnetic bearings (AMBs) has become a major focus in current research. The AMBs-flywheel system is not only responsible for attitude control but also provides the required energy during shadow periods. In magnetically suspended single gimbal control moment gyroscope (SGCMG), self-excited vibration caused by high-speed rotor rotation significantly affects the stability of the AMB system. The research focus lies in magnetically supporting the flywheel at high speeds with low power consumption to explore gyroscopic mechanics at ultra-high speeds and assess the corresponding stability. This study presents an assessment of the stability performance of a high-speed flywheel equipped on a single gimbal with an angular momentum of 75 Nm. To achieve ultra-high-speed operation under low driving power, a high-precise dynamic balance was performed followed by a novel unbalance control strategy of a radial and axial automatic balancing algorithm to suppress effectively synchronous vibrations due to nutation and precession. Corresponding experiments including static stable suspension experiments as well as low-speed, high-speed, and series-based stability assessments were conducted. Stable suspension at any speed ranging from 0 to 30,000 r/min was successfully implemented. The stability performance of the high-speed flywheel on a rotating platform at different gimbal speeds was verified, with a maximum speed reaching 31,200 r/min. The entire output torque process within the range of 30,000 r/min was revealed.

Keywords: flywheel; active magnetic bearing; automatic balancing control; stability; rotating platform (search for similar items in EconPapers)
JEL-codes: Q Q0 Q4 Q40 Q41 Q42 Q43 Q47 Q48 Q49 (search for similar items in EconPapers)
Date: 2024
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