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High-voltage pulse energy storage power supply circuit for space electric propulsion

A high-voltage pulse, energy-storage power supply technology, applied in the direction of high-efficiency power electronic conversion, electrical components, regulating electrical variables, etc. Frequency design, reduce ripple, realize the effect of zero-voltage turn-on and zero-current turn-off

Inactive Publication Date: 2019-12-03
BEIJING RES INST OF PRECISE MECHATRONICS CONTROLS
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  • Abstract
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  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

None of them can meet the requirements of space electric propulsion miniaturization and large boost ratio

Method used

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  • High-voltage pulse energy storage power supply circuit for space electric propulsion
  • High-voltage pulse energy storage power supply circuit for space electric propulsion
  • High-voltage pulse energy storage power supply circuit for space electric propulsion

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Embodiment Construction

[0038] Such as figure 1 As shown, the high-voltage pulse energy storage power supply for space electric propulsion is mainly composed of two LCC resonant full-bridge boost converters connected in parallel at the primary level and connected in series at the secondary level. Wherein the first resonant full-bridge converter mainly includes a first LCC resonant full-bridge converter, a first step-up transformer and a first full-bridge rectifying voltage equalizing circuit, and in one embodiment, the first resonant full-bridge converter is responsible for converting The 28V input voltage is converted into 1000V high-voltage DC; the second resonant full-bridge converter mainly includes the second LCC resonant full-bridge converter, the second step-up transformer and the second full-bridge rectifying and equalizing circuit, responsible for converting the 28V input voltage into 1000V high-voltage direct current; in this way, the secondary side can obtain a high-voltage direct current ...

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Abstract

The invention relates to a high-voltage pulse energy storage power supply circuit for space electric propulsion. Aiming at the limitation of a satellite on the weight and volume requirements of a satellite-borne power supply, a composite topological structure of primary parallel connection and secondary series connection of two LCC resonant full-bridge converters is adopted, so that the problems of a large primary peak current, the easiness in heating of a switching tube, a high secondary voltage and easiness in breakdown of a rectifier diode are solved, and the reliability of the power supplyis improved; the two small transformers are adopted to replace a single large transformer, so that the miniaturization and compact design of the power supply is achieved. Two full-bridge converters are driven by a single controller, and due to homology of driving signals and symmetrical layout of circuits, automatic current sharing can be achieved at the primary stage, and forced voltage sharingcan be achieved by connecting the secondary stage with a large-resistance voltage sharing resistor in parallel at two ends of an energy storage capacitor. By setting the phase difference, a two-phasestaggered series-parallel LCC resonance composite full-bridge topology is formed, input current ripples are reduced, an input side low-voltage direct current peak value is reduced, and the LCC resonance composite full-bridge topology is suitable for a satellite platform with limited power supply output power.

Description

technical field [0001] The invention relates to a high-voltage pulse energy storage power supply circuit for space electric propulsion, belonging to the field of space electric propulsion. It is suitable for realizing the circuit principle of high-voltage power supply with large boost ratio with limited input voltage such as space switching power supply and high-voltage pulse energy storage power supply. Background technique [0002] Compared with gas fuel electric propulsion (such as Hall and ion type) systems, solid ablative pulsed plasma thrusters (Pulsed Plasma Thruster, PPT) have the advantages of stable and easy storage of solid working fluid, no need for storage tanks and pipelines, and convenient The advantage of integrating with spacecraft has become a new hotspot in the development of electric propulsion technology. [0003] The PPT energy system is mainly composed of a high-voltage pulse ignition power supply, a high-voltage pulse energy storage power supply, and...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02M3/335
CPCH02M3/33561H02M3/33569Y02B70/10
Inventor 赵絮杨磊王令岩胡骢李春宇
Owner BEIJING RES INST OF PRECISE MECHATRONICS CONTROLS
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