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On-line Access: 2024-08-27

Received: 2023-10-17

Revision Accepted: 2024-05-08

Crosschecked: 2023-10-19

Cited: 0

Clicked: 1773

Citations:  Bibtex RefMan EndNote GB/T7714

 ORCID:

Chao ZHANG

https://orcid.org/0000-0002-8832-4047

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Journal of Zhejiang University SCIENCE A 2023 Vol.24 No.10 P.841-858

http://doi.org/10.1631/jzus.A2300104


Micro-Newton scale variable thrust control technique and its noise problem for drag-free satellite platforms: a review


Author(s):  Changyi XU, Wenya LI, Xuhui LIU, Yong LI, Chao ZHANG

Affiliation(s):  School of Control Science and Engineering, Dalian University of Technology, Dalian 116024, China; more

Corresponding email(s):   chao.zhang@zju.edu.cn

Key Words:  Space physics detection, Satellite platforms, Drag-free control, Micro-Newton scale variable thrust, Thrust noise


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Abstract: 
High-precision detection in fundamental space physics, such as space gravitational wave detection, high-precision earth gravity field measurement, and reference frame drag effect measurement, is the key to achieving important breakthroughs in the scientific study of fundamental space physics. Acquiring high-precision measurements requires high-performance satellite platforms to achieve “drag-free control” in a near “pure gravity” flight environment. The critical technology for drag-free control is variable thrust control at the micro-Newton scale. thrust noise is the most important technical indicator for achieving drag-free flight. However, there is no literature about the current status and future prospects of variable thrust control based on thrust noise. Therefore, the micro-Newton variable thrust control technology and the thrust noise of the drag-free satellite platform are reviewed in this work. Firstly, the research status of micro-Newton scale variable thrust control technology and its applications to drag-free satellite platforms are introduced. Then, the noise problem is analyzed in detail and its solution is theoretically investigated in three aspects: “cross-basin flow problem,” “control problem,” and “system instability and multiple-coupled problem.” Finally, a systematic overview is presented and the corresponding suggested directions of research are discussed. This work provides detailed understanding and support for realizing low-noise variable thrust control in the next generation of drag-free satellites.

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