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VACUUM ›› 2024, Vol. 61 ›› Issue (5): 80-89.doi: 10.13385/j.cnki.vacuum.2024.05.11

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Flight Test Performance Evaluation of LPPT-25 Micro Electric Propulsion System on Spectral Satellite

TIAN Li-cheng, WANG Shang-min, CHEN Chang-wen   

  1. Science and Technology on Vacuum Technology and Physics Laboratory, Lanzhou Institute of Physics, Lanzhou 730000, China
  • Received:2023-08-16 Online:2024-09-25 Published:2024-10-10

Abstract: Based on the requirement of the spectral satellite, Lanzhou Institute of Physics symmetrically analyzed the demands of the Chang Guang Satellite Company and proposed the 25 W pulsed plasma propulsion system as the choice. Then a flight prototype was developed and number of ground tests were performed. The results showed that all of the parameters are adequate for the needs. To verify the environment adaptability, its compatibility with spacecraft, in-flight tests, and the difference in performance between in-orbit and ground, the LPPT-25 electric propulsion system was launched on the GP-1 satellite and officially verified on-orbit. The in-flight tests of the system were evaluated. The results show that the pulsed plasma propulsion system was normally operated and its operating parameters fit well with the ones designed, where the thrust was stably provided, and the telemetry temperature was adapted to the ranges controlled. The thrust of the electric propulsion is calibrated to be 306.3 μN, and compared with the ground test of 300 μN, the deviation between them is within 5%, which reflects a commendable consistency of the orbit-ground results.

Key words: PPT thruster, micro-electric propulsion system, microsatellite, attitude control and station keeping

CLC Number:  V439+.2

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