Unlock instant, AI-driven research and patent intelligence for your innovation.

A Microcathode Arc Thrust Array System

A cathodic arc and array technology, applied in the field of satellite micro-propulsion, can solve the problems of large volume and mass of the micro-cathode arc thrust system, decreased thrust-weight ratio of the micro-cathode arc thrust system, complicated control methods, etc. The effect of improving the ratio and reliability and meeting the propulsion demand

Active Publication Date: 2021-08-10
HARBIN INST OF TECH
View PDF3 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Each micro-cathode arc thruster is powered by a power output unit (PPU), that is, the traditional micro-cathode arc thrust system is realized by the superposition of multiple sets of PPU-micro-cathode arc thrusters to realize the array of multiple sets of micro-cathode arc thrusters Arrangement to improve the life, thrust and total impulse of the microcathode arc thrust system, but it will cause the volume and quality of the microcathode arc thrust system to be too large, and the control method is complicated, which will lead to the decrease of the thrust-to-weight ratio of the microcathode arc thrust system, which is reliable decreased sex

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • A Microcathode Arc Thrust Array System
  • A Microcathode Arc Thrust Array System
  • A Microcathode Arc Thrust Array System

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0030] Such as figure 1 , figure 2 and image 3 As shown, the microcathode arc thrust array system provided in this embodiment includes a thruster integration part, a power output unit and a control part. The output end of the power output unit is connected to the anode of the thruster integration part through the control part, and the cathode of the thruster integration part is connected to the input end of the power output unit, thus forming a complete conductive circuit.

[0031] Wherein, the thruster integration part is arranged and integrated by multiple sets of micro-cathode arc thrusters arranged in an even-numbered regular polygon, and the cathodes 14 of multiple sets of micro-cathode arc thrusters are shared.

[0032] The control part includes control switches with the same number as the micro-cathode arc thrusters and connected in parallel, and one control switch is connected to one micro-cathode arc thruster, and different control switches are connected to differ...

Embodiment 2

[0048] The micro-cathode arc thrust array system in this embodiment is exactly the same as the micro-cathode arc thrust array system in Embodiment 1, also combining figure 1 , figure 2 , image 3 , Figure 4 The implementation of this example will be described. In this embodiment, L1 in the PPU is 1.2mh, R1 is 5Ω, T 1 ≈80μs. T can be obtained according to the formula in Example 1 2 ≈240μs, 7T≈1680μs. The ΔT of the micro-cathode arc thruster in each conductive branch is 40 μs, and when the working cycle is 1680 μs, the working interval of the micro-cathode arc thrust array system is shortened from 240 μs to 200 μs. work steadily.

Embodiment 3

[0050] The micro-cathode arc thrust array system in this embodiment is exactly the same as the micro-cathode arc thrust array system in Embodiment 1, also combining figure 1 , figure 2 , image 3 , Figure 4 The implementation of this example will be described. During the implementation of this embodiment, when the micro-cathode arc thrust array system continues to work under certain modal conditions, due to avoiding the torque caused by the inconsistency of the working hours of each micro-cathode arc thruster, the geometric configuration should be guaranteed Opposite microcathode arc thrusters work simultaneously, e.g. figure 1 The micro-cathode arc thruster 2 and micro-cathode arc thruster 5, the micro-cathode arc thruster 3 and the micro-cathode arc thruster 6, the micro-cathode arc thruster 4 and the micro-cathode arc thruster 7 work simultaneously, and the micro-cathode arc thruster Device 1 is a central thruster, and its working control method is consistent with tha...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention discloses a micro-cathode arc thrust array system, which relates to the technical field of satellite micro-propulsion. a control part; the output end of the power output unit is connected with the anode of the thruster integrated part through the control part, and the cathode of the thruster integrated part is connected with the input end of the power output unit; wherein, the cathodes of the multiple groups of micro-cathode arc thrusters are shared; Control the on-off between different anodes and cathodes of the thruster integrated part through the control part, so as to achieve the purpose of alternating discharge of multiple groups of micro-cathode arc thrusters; by changing the discharge mode of the control part, the micro-cathode arc thrusters can be operated in a variety of ways. Choose among the modes to achieve the purpose of meeting different propulsion needs. The invention has the functions of reducing mass and volume, increasing thrust-to-weight ratio and reliability, and better meeting satellite propulsion requirements.

Description

technical field [0001] The invention relates to the technical field of satellite micro-propulsion, in particular to a micro-cathode arc thrust array system. Background technique [0002] The microcathode arc thruster has become an ideal electric propulsion type for micro-nano-satellites due to its advantages of micro-power, high efficiency, high specific impulse, wide-range controllability, and low cost. It can be applied to the orbit maintenance and formation of micro-nano-satellites missions such as flying. [0003] A single set of microcathode arc thrusters cannot meet the propulsion requirements of satellites well due to their low thrusters and limited lifespan. However, arraying multiple sets of microcathode arc thrusters can significantly improve the performance of the microcathode arc thrust system. Total stroke, thrust and life. [0004] The traditional microcathode arc thrust system consists of a power output unit (PPU) part (a structure formed by direct stacking ...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Patents(China)
IPC IPC(8): B64G1/10B64G1/40
CPCB64G1/10B64G1/40
Inventor 魏立秋丁永杰李鸿纪添源于达仁
Owner HARBIN INST OF TECH