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A modular satellite electric propulsion device with adjustable discharge pulse

A discharge pulse and propulsion device technology, applied in the direction of aerospace vehicle propulsion system devices, etc., can solve the problems of low energy utilization rate, poor modularity, low efficiency, etc., achieve adjustable on-off time, simplified fuel supply mechanism, and high efficiency Effect

Active Publication Date: 2021-02-09
遨天科技(北京)有限公司
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  • Abstract
  • Description
  • Claims
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AI Technical Summary

Problems solved by technology

[0009] The purpose of the present invention is to propose a modularized satellite electric propulsion device with adjustable discharge pulses in view of the technical status quo of poor modularity, low efficiency, large volume and low energy utilization in existing satellite electric propulsion devices

Method used

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  • A modular satellite electric propulsion device with adjustable discharge pulse

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Embodiment 1

[0048] Such as figure 1 As shown, a modular satellite electric propulsion device with adjustable discharge pulse includes a power conversion module 1 , an energy storage and discharge module 2 , a pulse control module 3 , a switch drive module 4 , a thruster module 5 and a power module 6 .

[0049] Wherein, the power conversion module 1 includes a power converter 11 of an energy storage module, a power converter 12 of a switch driving module, and a power converter 13 of a pulse control module. The power conversion module 11 has functions of current limiting protection and surge suppression.

[0050] The energy storage and discharge module 2 includes a capacitor 21, an inductor 22, a controllable switch 23, a resistor 24, and the like. Using the principle that the current of the inductor 23 cannot change abruptly, an instantaneous increase in voltage is obtained. The power supply module 6 will charge the capacitor 21 when the power supply module 6 is powered on. When the cont...

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Abstract

The invention relates to a modular satellite electric propulsion device with adjustable discharge pulse, which belongs to the field of micro-nano satellite electric propulsion. Combined with the rapid on-off of the controllable switch, the inductive energy storage and voltage boost are realized based on the fact that the inductive current cannot be mutated, so that the anode and cathode of the thruster are discharged, ionized plasma, ejected to generate thrust, and the output PWM is adjusted through the pulse control circuit The duty cycle and frequency of the rectangular wave adjust the thrust. The device is small in size and simple in supply mechanism; based on the way of inductive energy storage, it can instantly raise the low voltage of 3-27V to a plasma breakdown voltage of hundreds to more than a thousand volts, reducing the voltage demand for satellite power supply and distribution ;Effectively reduces the cost; adopts modular design, the functions can be freely combined according to the needs, the interface is compatible, combined with power supply devices of different discharge power and frequency, can form different series of thrusters; the digital adjustable pulse control circuit adopted is easy to debug , can realize the precise control of the thrust.

Description

technical field [0001] The invention relates to a modularized satellite electric propulsion device with adjustable discharge pulses, in particular to a modularized electric propulsion device with inductive energy storage and digitally adjustable pulse discharge frequency, belonging to the technical field of microsatellite electric propulsion. Background technique [0002] With the development of micro-electronic machinery and micro-nano technology, pico-satellites within 1 kg, nano-satellites within 10 kg, cube satellites and micro-satellites within 100 kg are showing a rapid development trend to meet the needs of commercial aerospace medium and low-orbit Internet of Things communication satellites, Large-scale deployment and low-cost application requirements of Internet communication satellites, remote sensing satellites, navigation enhancement satellites, and scientific experiment satellites. The quality and orbital characteristics of these satellites put forward new requi...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B64G1/40
CPCB64G1/40
Inventor 王红霞戴阳
Owner 遨天科技(北京)有限公司
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