Analysis on Variable-Thrust Characteristic of 10cm Xenon Ion Thruster

doi:10.13675/j.cnki.tjjs.190562

Journal of Propulsion Technology ›› 2020, Vol. 41 ›› Issue (10): 2382-2389.DOI: 10.13675/j.cnki.tjjs.190562

• Electric Propulsion and Other Advanced Propulsion • Previous Articles Next Articles

Analysis on Variable-Thrust Characteristic of 10cm Xenon Ion Thruster

1.Science and Technology on Vacuum Technology and Physics Laboratory，Lanzhou Institute of Physics，Lanzhou 730000，China;2.School of Materials Science and Engineering，Beijing University of Aeronautics and Astronautics，Beijing 100191，China;3.Institute of Electrical Engineering，Chinese Academy of Sciences，Beijing 100191，China

Published:2021-08-15

10cm氙离子推力器变推力特性研究

胡竟^1,2，杨福全¹，郭德洲¹，谷增杰¹，邵明学³，郑茂繁¹

1.兰州空间技术物理研究所真空技术与物理重点实验室，甘肃兰州 730000;2.北京航空航天大学材料科学与工程学院，北京 100191;3.中国科学院电工研究所，北京 100190

基金资助:
民用航天预先研究项目（D010509）；国家自然科学基金（61601210）；甘肃省科技计划项目（18JR3RA412）。

Abstract

Abstract: Compensation of the non-gravity dumping at high continuum speed with high accuracy for gravitational gradiometry satellites is one of the most important techniques to realize fine gravity field measurement， it can directly influence the success of the mission. Aiming at the application requirement of gravitational gradiometry satellites for electric propulsion system with the ability of wide-range and continuous variable-thrust during orbit flight， thrust regulation characteristic of 10cm xenon ion thruster was analyzed. Based on it， the thrust regulation tests were performed by adjusting the anode current， the magnet current and the propellant flow rate of the anode， and other high sensitive response parameters about thrust. The ability of wide-range and continuous variable-thrust of 10cm xenon ion thruster was evaluated， and its performance of thrust regulation and change rule over range 1mN～20mN were obtained. The results showed that the 10cm xenon ion thruster can realize continuous variable-thrust within the range of 0.98mN～20.29mN over the input power range of 100W～597W，specific impulse varies 175s～3500s， and the thrust resolutions accuracy is better than 50μN under the condition of using the ground power supply and air supply equipment. Above research will certainly provide foundation to establish thrust control mathematical model and control algorithm of 10cm xenon ion electric propulsion system.

Key words: 10cm xenon ion thruster;Thrust;Characteristic analysis;Experiment research;Ion production cost;Propellant utilization efficiency

摘要： 非重力阻尼的连续、快速、高精度补偿是实现重力梯度测量卫星精细重力场的关键技术之一，直接影响到整星工程任务的成败。针对重力梯度测量卫星在轨飞行期间对电推进系统宽范围连续变推力能力的应用需求，分析了10cm氙离子推力器推力调节响应特性。在此基础上，通过对阳极电流、励磁电流和阳极流率等推力高敏感响应参量的组合调节，开展了推力调节试验研究，验证了10cm氙离子推力器宽范围连续变推力调节能力，获得了1～20mN内的推力调节性能及其变化规律。试验结果表明：在采用地面供电、供气设备条件下，10cm氙离子推力器能够在100～597W内实现0.98～20.29mN的推力宽范围调节，比冲175s～3500s，推力分辨率优于50μN。研究为建立10cm氙离子电推进系统的推力控制数学模型及调节控制算法奠定基础。

关键词: 10cm氙离子推力器;推力;特性分析;试验研究;放电损耗;推进剂利用率

HU Jing^1,2, YANG Fu-quan¹, GUO De-zhou¹, GU Zeng-jie¹, SHAO Ming-xue³, ZHENG Mao-fan¹. Analysis on Variable-Thrust Characteristic of 10cm Xenon Ion Thruster[J]. Journal of Propulsion Technology, 2020, 41(10): 2382-2389.

胡竟，杨福全，郭德洲，谷增杰，邵明学，郑茂繁. 10cm氙离子推力器变推力特性研究[J]. 推进技术, 2020, 41(10): 2382-2389.

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Analysis on Variable-Thrust Characteristic of 10cm Xenon Ion Thruster

10cm氙离子推力器变推力特性研究

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