Pulse high-power spacecraft power supply system

CN115549252BActive Publication Date: 2026-06-19BEIJING INST OF SPACECRAFT SYST ENG
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
BEIJING INST OF SPACECRAFT SYST ENG
Filing Date
2022-09-30
Publication Date
2026-06-19

AI Technical Summary

Technical Problem

Existing power systems cannot meet the requirements of ultra-high power and ultra-high voltage pulsed loads, resulting in excessive system weight and serious impact on bus quality, thus failing to meet the mission requirements of spacecraft.

Method used

The platform power controller and isolated charge/discharge regulation module adopt the S3R topology architecture, combined with the buck+LLC two-stage series structure and droop control, to construct a pulsed high-power spacecraft power system, realizing efficient energy transfer and bus voltage regulation of the solar cell array, platform power controller, battery management unit and battery pack.

Benefits of technology

It reduces system complexity and weight, improves energy efficiency, reduces interference from pulsed power loads on the low-voltage bus, and has strong adaptability, enabling it to adapt to both single-cell and dual-cell architecture changes.

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Abstract

This invention discloses a high-power pulsed spacecraft power system, comprising a solar array, a platform power controller, a battery management unit, and a battery bank. The input terminal of the platform power controller is connected to the positive power bus of the solar array, and the output terminal of the platform power controller is connected to the platform load through a platform distributor, thereby forming a low-voltage bus power supply line. The input terminal of the platform power controller is connected to the positive power bus of the solar array, and the output terminal of the platform power controller is connected to the battery management unit. The battery management unit is connected to the battery bank, and the battery bank is connected to the high-power pulsed load through series boost, thereby forming a high-voltage bus power supply line. This invention can meet both the power supply requirements of a stable bus and the power supply requirements of a high-power pulsed load bus.
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Citation Information

Patent Citations

  • High-power high-efficiency satellite power supply system based on high voltage and low voltage double buses

    CN106410936A

  • Spacecraft power supply double-bus system

    CN111361765A