Space micro-newton-level electric propulsion control system

Abstract

The invention discloses a space micro-newton-level electric propulsion control system which comprises an instruction analysis module, a remote measurement acquisition module, a thrust conversion module, a thrust control module and a DA control module. The instruction analysis module is used for analyzing an instruction sent by a satellite platform and outputting analyzed parameters to the thrust control module; the remote measurement acquisition module is used for controlling the AD acquisition chip, acquiring voltage and current fed back by the thruster, performing mean value processing on the acquired voltage and current, and sending the processed voltage and current to the thrust conversion module; the thrust conversion module is used for converting the received voltage and current subjected to mean value processing into corresponding thrust values and sending the thrust values to the thrust control module; the thrust control module realizes thrust control by selecting open-loop control or closed-loop control, calculates a voltage value based on the received data, and outputs the voltage value to the DA chip control module; and the DA chip control module is used for converting the received voltage value into an N value and outputting the N value to the DA chip, so that the micronewton thrust is output to the thruster.

Description

technical field [0001] The invention relates to the fields of aerospace and SOC design, in particular to a space micro-level electric propulsion control system. Background technique [0002] With the development of the global gravitational wave detection program and the improvement of the precision and noise requirements of space missions such as high-precision earth observation and satellite navigation, micro-new level thrust propulsion technology with high precision, high resolution and wide range has become an urgent need. The application requirements of space micro-bovine propulsion technology mainly include two aspects: one is the dragless control satellite platform, which is used for space gravitational wave detection, etc.; the other is the ultra-high-precision control satellite platform, which is used for high-precision space navigation, observation tasks. [0003] At present, the propulsion technologies at home and abroad mainly include cold air propulsion technol...

AI Technical Summary

Problems solved by technology

[0004] Domestic closed-loop control methods for electric propulsion are all implemented through simulation tools such as simulink, but they cannot be applied to aerospace equipment; through software implementation, there are disadvantages such as low control efficiency and program runaway miscontrol.

Images