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An electric propulsion multi-mode autonomous control system and method

An autonomous control and multi-mode technology, which is applied in the direction of thrust reverser, plasma utilization, machine/engine, etc., can solve problems such as the inability to meet the requirements of multi-mode work tasks, and achieve long-term on-orbit work. Thrust changes with time, precision Excellent, improve the effect of adaptability

Active Publication Date: 2022-07-29
BEIJING INST OF CONTROL ENG
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Problems solved by technology

[0004] At present, my country's electric propulsion system mainly adopts a single working mode, and its working process does not involve the switching of multiple modes. The control method is relatively simple, and there is no need to adjust the output flow rate or output power parameters. All parameters are Fixed at one working point, this method cannot meet the task requirements of multi-mode work

Method used

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  • An electric propulsion multi-mode autonomous control system and method
  • An electric propulsion multi-mode autonomous control system and method
  • An electric propulsion multi-mode autonomous control system and method

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Embodiment

[0032] An electric propulsion multi-mode autonomous control system, the autonomous control system comprises an electric propulsion multi-mode control module, a multi-mode power supply module, a multi-mode flow rate control module, a multi-mode electric thruster and a multi-mode direction adjustment device; the multi-mode electric thrust The thruster is installed on the multi-mode direction adjustment device, and the multi-mode direction adjustment device can drive the multi-mode electric thruster to rotate;

[0033] The electric propulsion multi-mode control module includes a mode solving sub-module, a power control sub-module, a flow rate control sub-module and a thrust direction control sub-module;

[0034] The mode solver sub-module receives the system working mode command, and calculates the ignition power signal, the ignition flow rate signal and the thrust direction signal in the working mode according to the received system working mode command, and sends the calculated ...

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Abstract

The invention relates to an electric propulsion multi-mode autonomous control system and method, belonging to the technical field of space electric propulsion. The invention realizes the large-scale flexible adjustment of the thrust by adjusting the ignition flow rate, the anode power and the screen grid power, solves the problem that the thrust of the electric propulsion system cannot be flexibly adjusted, and improves the adaptability of the electric propulsion system to the spacecraft mission; Adjusting the angle of the orthogonal two axes of the vector adjustment mechanism realizes a wide range of flexible adjustment of the thrust direction, and solves the problem that the thrust direction of the electric propulsion system cannot be adjusted flexibly. It has the characteristics of simple, reliable and stable control strategy; In the electric propulsion system, the closed-loop control of the screen grid current is completed by adjusting the anode current, which indirectly realizes the on-orbit real-time compensation of the thrust, solves the problem of the long-term on-orbit thrust of the electric propulsion system changing with time, and ensures the high-precision and high-stable thrust output. , the accuracy is better than 1%.

Description

technical field [0001] The invention relates to an electric propulsion multi-mode autonomous control system and method, belonging to the technical field of space electric propulsion. Background technique [0002] Electric propulsion technology is an efficient spacecraft propulsion technology, which has the advantage of high specific impulse compared with traditional chemical propulsion systems. In the initial stage of electric propulsion application, it is mainly a single working mode, working at a specific power point, the output thrust and specific impulse remain unchanged, and it mainly performs the task of maintaining the position of GEO satellites; with the development of electric propulsion technology, the application of electric propulsion system gradually expands In the multi-working mode, it can work at different power points, and the output thrust and specific impulse also change to meet the needs of different spacecraft missions, with stronger adaptability and mor...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F03H1/00
CPCF03H1/0087
Inventor 高俊邹达人何刚李永宋飞刘国西李宗良韩亮丛云天郭盼
Owner BEIJING INST OF CONTROL ENG
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