Thrust Noise Rejection of MDIT and MDCFT by Feedback Control System Faced with Space Gravitational Waves Detection

Xiang Niu; Hongbo Zhou; Hui Liu; Daren yu

doi:10.1007/978-981-96-7803-7_18

Thrust Noise Rejection of MDIT and MDCFT by Feedback Control System Faced with Space Gravitational Waves Detection

Xiang Niu
, Hongbo Zhou
, Hui Liu^*
, Daren yu

^*Corresponding author for this work

School of Energy Science and Engineering

Harbin Institute of Technology

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › peer-review

Abstract

Drag free control system, as a key part of space gravitational waves detection satellite, needs to offset non-conservative forces on the satellite and reduce its residual acceleration. As the actuator of drag-free control system, the micro propulsion system needs to output super low-noise thrust to realize the detection goal. The microwave discharge ion thruster (MDIT) and microwave discharge cusped field thruster (MDCFT) are two minimized electric thrusters designed by Harbin Institute of Technology (HIT), which both can realize 1-100μN thrust range. However, high thrust noises in the low frequency band limit their applications on the space GWs detection task. Analyses of thrust noise sources show the main disturbances are ionization processes. Based on it, a feedback control system is designed according to the characteristics of the two thrusters. Then an experimental platform is established on ground to validate that the thrust noises of MDIT and MDCFT both can be reduced below 0.1μN/Hz^1/2 in 1mHz to 1Hz after adopting the feedback control system.

Original language	English
Title of host publication	Proceedings of the 7th International Workshop on the TianQin Science Mission, 2024 - Progress on the TianQin Science Mission and in Gravitational Wave Detection
Editors	Jun Luo, Hsien-Chi Yeh, Jianwei Mei, Vadim Milyukov, Ze-Bing Zhou
Publisher	Springer Science and Business Media Deutschland GmbH
Pages	163-169
Number of pages	7
ISBN (Print)	9789819678020
DOIs	https://doi.org/10.1007/978-981-96-7803-7_18
State	Published - 2025
Event	7th International Workshop on the TianQin Science Mission, TianQin 2024 - Hong Kong, China Duration: 25 Apr 2024 → 26 Apr 2024

Publication series

Name	Springer Proceedings in Physics
Volume	428
ISSN (Print)	0930-8989
ISSN (Electronic)	1867-4941

Conference

Conference	7th International Workshop on the TianQin Science Mission, TianQin 2024
Country/Territory	China
City	Hong Kong
Period	25/04/24 → 26/04/24

Keywords

Drag-free control
Feedback control
Microwave discharge cusped field thruster
Microwave discharge ion thruster
Thrust noise

Access to Document

10.1007/978-981-96-7803-7_18

Cite this

Niu, X., Zhou, H., Liu, H., & yu, D. (2025). Thrust Noise Rejection of MDIT and MDCFT by Feedback Control System Faced with Space Gravitational Waves Detection. In J. Luo, H.-C. Yeh, J. Mei, V. Milyukov, & Z.-B. Zhou (Eds.), Proceedings of the 7th International Workshop on the TianQin Science Mission, 2024 - Progress on the TianQin Science Mission and in Gravitational Wave Detection (pp. 163-169). (Springer Proceedings in Physics; Vol. 428). Springer Science and Business Media Deutschland GmbH. https://doi.org/10.1007/978-981-96-7803-7_18

Niu, Xiang ; Zhou, Hongbo ; Liu, Hui et al. / Thrust Noise Rejection of MDIT and MDCFT by Feedback Control System Faced with Space Gravitational Waves Detection. Proceedings of the 7th International Workshop on the TianQin Science Mission, 2024 - Progress on the TianQin Science Mission and in Gravitational Wave Detection. editor / Jun Luo ; Hsien-Chi Yeh ; Jianwei Mei ; Vadim Milyukov ; Ze-Bing Zhou. Springer Science and Business Media Deutschland GmbH, 2025. pp. 163-169 (Springer Proceedings in Physics).

@inproceedings{f93f537f601c431f98cf6f663171d3f1,

title = "Thrust Noise Rejection of MDIT and MDCFT by Feedback Control System Faced with Space Gravitational Waves Detection",

abstract = "Drag free control system, as a key part of space gravitational waves detection satellite, needs to offset non-conservative forces on the satellite and reduce its residual acceleration. As the actuator of drag-free control system, the micro propulsion system needs to output super low-noise thrust to realize the detection goal. The microwave discharge ion thruster (MDIT) and microwave discharge cusped field thruster (MDCFT) are two minimized electric thrusters designed by Harbin Institute of Technology (HIT), which both can realize 1-100μN thrust range. However, high thrust noises in the low frequency band limit their applications on the space GWs detection task. Analyses of thrust noise sources show the main disturbances are ionization processes. Based on it, a feedback control system is designed according to the characteristics of the two thrusters. Then an experimental platform is established on ground to validate that the thrust noises of MDIT and MDCFT both can be reduced below 0.1μN/Hz1/2 in 1mHz to 1Hz after adopting the feedback control system.",

keywords = "Drag-free control, Feedback control, Microwave discharge cusped field thruster, Microwave discharge ion thruster, Thrust noise",

author = "Xiang Niu and Hongbo Zhou and Hui Liu and Daren yu",

note = "Publisher Copyright: {\textcopyright} The Author(s), under exclusive license to Springer Nature Singapore Pte Ltd. 2025.; 7th International Workshop on the TianQin Science Mission, TianQin 2024 ; Conference date: 25-04-2024 Through 26-04-2024",

year = "2025",

doi = "10.1007/978-981-96-7803-7\_18",

language = "英语",

isbn = "9789819678020",

series = "Springer Proceedings in Physics",

publisher = "Springer Science and Business Media Deutschland GmbH",

pages = "163--169",

editor = "Jun Luo and Hsien-Chi Yeh and Jianwei Mei and Vadim Milyukov and Ze-Bing Zhou",

booktitle = "Proceedings of the 7th International Workshop on the TianQin Science Mission, 2024 - Progress on the TianQin Science Mission and in Gravitational Wave Detection",

address = "德国",

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Niu, X, Zhou, H, Liu, H & yu, D 2025, Thrust Noise Rejection of MDIT and MDCFT by Feedback Control System Faced with Space Gravitational Waves Detection. in J Luo, H-C Yeh, J Mei, V Milyukov & Z-B Zhou (eds), Proceedings of the 7th International Workshop on the TianQin Science Mission, 2024 - Progress on the TianQin Science Mission and in Gravitational Wave Detection. Springer Proceedings in Physics, vol. 428, Springer Science and Business Media Deutschland GmbH, pp. 163-169, 7th International Workshop on the TianQin Science Mission, TianQin 2024, Hong Kong, China, 25/04/24. https://doi.org/10.1007/978-981-96-7803-7_18

Thrust Noise Rejection of MDIT and MDCFT by Feedback Control System Faced with Space Gravitational Waves Detection. / Niu, Xiang; Zhou, Hongbo; Liu, Hui et al.
Proceedings of the 7th International Workshop on the TianQin Science Mission, 2024 - Progress on the TianQin Science Mission and in Gravitational Wave Detection. ed. / Jun Luo; Hsien-Chi Yeh; Jianwei Mei; Vadim Milyukov; Ze-Bing Zhou. Springer Science and Business Media Deutschland GmbH, 2025. p. 163-169 (Springer Proceedings in Physics; Vol. 428).

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › peer-review

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T1 - Thrust Noise Rejection of MDIT and MDCFT by Feedback Control System Faced with Space Gravitational Waves Detection

AU - Niu, Xiang

AU - Zhou, Hongbo

AU - Liu, Hui

AU - yu, Daren

N1 - Publisher Copyright: © The Author(s), under exclusive license to Springer Nature Singapore Pte Ltd. 2025.

PY - 2025

Y1 - 2025

N2 - Drag free control system, as a key part of space gravitational waves detection satellite, needs to offset non-conservative forces on the satellite and reduce its residual acceleration. As the actuator of drag-free control system, the micro propulsion system needs to output super low-noise thrust to realize the detection goal. The microwave discharge ion thruster (MDIT) and microwave discharge cusped field thruster (MDCFT) are two minimized electric thrusters designed by Harbin Institute of Technology (HIT), which both can realize 1-100μN thrust range. However, high thrust noises in the low frequency band limit their applications on the space GWs detection task. Analyses of thrust noise sources show the main disturbances are ionization processes. Based on it, a feedback control system is designed according to the characteristics of the two thrusters. Then an experimental platform is established on ground to validate that the thrust noises of MDIT and MDCFT both can be reduced below 0.1μN/Hz1/2 in 1mHz to 1Hz after adopting the feedback control system.

AB - Drag free control system, as a key part of space gravitational waves detection satellite, needs to offset non-conservative forces on the satellite and reduce its residual acceleration. As the actuator of drag-free control system, the micro propulsion system needs to output super low-noise thrust to realize the detection goal. The microwave discharge ion thruster (MDIT) and microwave discharge cusped field thruster (MDCFT) are two minimized electric thrusters designed by Harbin Institute of Technology (HIT), which both can realize 1-100μN thrust range. However, high thrust noises in the low frequency band limit their applications on the space GWs detection task. Analyses of thrust noise sources show the main disturbances are ionization processes. Based on it, a feedback control system is designed according to the characteristics of the two thrusters. Then an experimental platform is established on ground to validate that the thrust noises of MDIT and MDCFT both can be reduced below 0.1μN/Hz1/2 in 1mHz to 1Hz after adopting the feedback control system.

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KW - Feedback control

KW - Microwave discharge cusped field thruster

KW - Microwave discharge ion thruster

KW - Thrust noise

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SN - 9789819678020

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BT - Proceedings of the 7th International Workshop on the TianQin Science Mission, 2024 - Progress on the TianQin Science Mission and in Gravitational Wave Detection

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A2 - Mei, Jianwei

A2 - Milyukov, Vadim

A2 - Zhou, Ze-Bing

PB - Springer Science and Business Media Deutschland GmbH

T2 - 7th International Workshop on the TianQin Science Mission, TianQin 2024

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Niu X, Zhou H, Liu H , yu D. Thrust Noise Rejection of MDIT and MDCFT by Feedback Control System Faced with Space Gravitational Waves Detection. In Luo J, Yeh HC, Mei J, Milyukov V, Zhou ZB, editors, Proceedings of the 7th International Workshop on the TianQin Science Mission, 2024 - Progress on the TianQin Science Mission and in Gravitational Wave Detection. Springer Science and Business Media Deutschland GmbH. 2025. p. 163-169. (Springer Proceedings in Physics). doi: 10.1007/978-981-96-7803-7_18

Thrust Noise Rejection of MDIT and MDCFT by Feedback Control System Faced with Space Gravitational Waves Detection

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