首页|Thrust estimate method of an on-orbit Hall thruster using Hall drift current

Thrust estimate method of an on-orbit Hall thruster using Hall drift current

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In order to realize the thrust estimation of the Hall thruster during its flight mission,this study establishes an estimation method based on measurement of the Hall drift current.In this method,the Hall drift current is calculated from an inverse magnetostatic problem,which is formulated according to its induced magnetic flux density detected by sensors,and then the thrust is estimated by multiplying the Hall drift current with the characteristic magnetic flux density of the thruster itself.In addition,a three-wire torsion pendulum micro-thrust measurement system is utilized to verify the estimate values obtained from the proposed method.The errors were found to be less than 8%when the discharge voltage ranged from 250 V to 350 V and the anode flow rate ranged from 30 sccm to 50 sccm,indicating the possibility that the proposed thrust estimate method could be practically applied.Moreover,the measurement accuracy of the magnetic flux density is suggested to be lower than 0.015 mT and improvement on the inverse problem solution is required in the future.

thrust estimationHall effect thrusterHall drift currentinverse problemTikhonov regularization

任姿颖、魏立秋、刘泽欣、扈延林、韩亮、李鸿、丁永杰、钟秀峰

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School of Energy Science and Engineering,Harbin Institute of Technology,Harbin 150001,People's Republic of China

Chang Guang Satellite Technology Co.,Ltd.,Changchun 130000,People's Republic of China

Beijing Institute of Control Engineering,Beijing 100190,People's Republic of China

Beijing Sun Wise Space Technology Ltd.,Beijing 101300,People's Republic of China

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2024

等离子体科学和技术(英文版)
中国科学院合肥物质科学研究所 中国力学学会

等离子体科学和技术(英文版)

EI
影响因子:0.297
ISSN:1009-0630
年,卷(期):2024.26(12)
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