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Development of Sub-200 W Laboratory Model Hall Thrusters for Small and Micro Satellites

소형 및 초소형위성 활용을 위한 200 W 이하 저전력 홀 전기추력기 랩모델 연구개발

  • Lee, Dongho (Department of Physics, Korea Advanced Institute of Science and Technology) ;
  • Kim, Holak (Satellite Research Directorate, Korea Aerospace Research Institute) ;
  • Doh, Guentae (Department of Physics, Korea Advanced Institute of Science and Technology) ;
  • Kim, Youngho (Department of Nuclear and Quantum Engineering, Korea Advanced Institute of Science and Technology) ;
  • Park, Jaehong (Space Exploration Engineering Program, Department of Aerospace Engineering, Korea Advanced Institute of Science and Technology) ;
  • Lee, Jaejun (Space Exploration Engineering Program, Department of Aerospace Engineering, Korea Advanced Institute of Science and Technology) ;
  • Choe, Wonho (Department of Physics, Korea Advanced Institute of Science and Technology)
  • Received : 2021.12.01
  • Accepted : 2022.03.03
  • Published : 2022.04.30

Abstract

Hall thrusters are one of the electric propulsion, where ions are accelerated to generate thrust and are widely utilized in space missions due to their high specific impulses. Recently, as the utilization of small and micro satellites with the mass of similar or less than 100 kg is highly increasing, the importance of research and development of the low-power electric propulsion is also raised. In this study, we developed two sub-200 W or less class, laboratory model Hall thrusters and measured the thrust and analyzed the discharge characteristics. Consequently, we obtained 2.5-9.0 mN of thrust, 600-1,150 s of specific impulse, and 15-28% of anode efficiency at 50-175 W of anode power.

홀추력기는 이온을 가속하여 추력을 얻는 전기추력기의 일종으로, 높은 비추력을 보유하여 다양한 우주임무에 활용되고 있다. 특히, 최근 다양한 우주임무 내 100 kg 내외의 소형 및 초소형위성의 활용이 가파르게 증가하면서, 이를 위한 저전력 전기추력기 연구개발의 중요성 역시 크게 증가하고 있다. 본 연구에서는 양극전력 200 W 미만의 홀추력기 랩모델 두 기를 설계 및 제작하고, 운전변수에 따른 추력성능 혹은 방전특성을 분석하였다. 결과적으로, 양극전력 50-175 W에서 2.5-9.0 mN 수준의 추력과 600-1,150 s의 비추력, 15-28% 양극효율을 확보하였다.

Keywords

Acknowledgement

본 연구는 한국연구재단의 스페이스 파이오니어사업(2021M1A3B9096777) 과제의 도움을 받아 수행되었습니다.

References

  1. Mazouffre, S., "Electric propulsion for satellites and spacecraft: established technologies and novel approaches," Plasma Sources Science and Technology, Vol. 25, No. 3, pp. 1-27, 2016. https://doi.org/10.1088/0963-0252/25/3/033002
  2. Goebel, G. and Katz, I., Fundamentals of Electric Propulsion: Ion and Hall Thrusters, John Wiley & Sons Inc., New York, N.Y., U.S.A., Ch. 9, 2008.
  3. Levchenko, I., Bazaka, K., Ding, Y., Raitses, Y., Mazouffre, S., Henning, T., Klar, P.J., Shinohara, S., Schein, J., Garrigues, L., Kim, M., Lev, D., Taccogna, F., Boswell, R., W., Charles, C. Koizumi, H., Shen, Y., Scharlemann, C., Keidar, M. and Xu, S., "Space micropropulsion systems for Cubesats and small satellites: From proximate targets to furthermost frontiers," Applied Physics Reviews, Vol. 5, No. 1, pp. 011104, 2018. https://doi.org/10.1063/1.5007734
  4. SpaceWorks Enterprises, Inc., "2020 Nano/Microsatellite market forecast", 10th edition, 2020.
  5. Conversano, R.W., Goebel, D.M., Hofer, R.R., Matlock, T.S. and Wirz, R.E., "Development and initial testing of a magnetically shielded miniature hall thruster," IEEE Transactions on Plasma Science, Vol. 43, No. 1, pp. 103-115, 2015. https://doi.org/10.1109/TPS.2014.2321107
  6. Seo, M., Lee, J., Shin, G., Park, H., Seo, J., Jang, T., Cha, W., Lee, S., Cho, H., Chun, E., Jeong, Y., Seon, J. and Choe, W., "Development of Hall Thruster System Flight Model for STSAT-3," 2012 KSPE Fall Conference, Yeosu, Korea, pp. 586-589, 2012.
  7. Lee, E., Kim, Y., Lee, H., Kim, H., Doh, G., Lee, D. and Choe, W., "Scaling Approach for Sub-Kilowatt Hall-Effect Thrusters," Journal of Propulsion and Power, Vol. 35, No. 6, pp. 1073-1079, 2019. https://doi.org/10.2514/1.B37424
  8. Randolph, T., Kim, V., Kaufman, H., Kozubsky, K., Zhurin, V. and Day, M., "Facility Effects on Stationaty Plasma Thruster Testing," 23rd International Electric Propulsion Conference, Washington, U.S.A., IEPC-93-093, September 1993.
  9. Doh, G., Kim, Y., Lee, D., Park, J. and Choe, W., "Development of a 700 W Class Laboratory Model Hall thruster," Journal of Korean Society of Propulsion Engineering, Vol. 25, No. 5, pp. 65-72, 2021. https://doi.org/10.6108/KSPE.2021.25.5.065