Boost power supply controller for carrying spacecraft

Abstract

The invention discloses a boost power supply controller for a carrying spacecraft. The boost power supply controller at least comprises M boost circuits and a bus filter unit, wherein the M boost circuits are used for converting output voltages of N storage batteries into required voltages; M is a natural number greater than 1; an output positive terminal of each storage battery is connected with a battery bus bar through a battery input relay; each battery bus bar is electrically connected with an input positive terminal of at least one boost circuit; a positive power output terminal for of each boost circuit is connected with a same bus bar; negative power input and output terminals of all boost circuits all are electrically connected with a negative bus bar; the bus filter unit is used for filtering a high-frequency signal and a low-frequency signal on a bus; the bus filter unit comprises a hall sensor, a bus high-frequency capacitor and a bus low-frequency capacitor, which are sequentially connected with one another; the hall sensor is used for detecting a current between the bus bar and the positive terminal of the bus high-frequency filter capacitor; and the bus low-frequency capacitor is electrically connected with each load power supply interface through each load output relay.

Description

technical field [0001] The invention belongs to the technical field of physical power supplies of spacecraft, in particular to a booster power supply controller for a carrier spacecraft. Background technique [0002] In the field of domestic and international space power supplies, the research and development and application of satellite power supply systems are becoming more and more mature with the rapid development of satellite technology. In comparison, due to the high reliability and short-term mission characteristics of the primary power supply of the launch vehicle, the battery directly supplies power to the busbar. It has always been the first choice, but with the emergence of new models of launch vehicles, the time for carrying spacecraft to perform missions has gradually become longer, and the content of missions has gradually become richer, and more demands have been placed on primary bus power supply. [0003] At present, some mission satellites are limited by th...

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Problems solved by technology

[0003] At present, some mission satellites are limited by the long flight time before entering orbit and battery capacity. Relying on their own battery energy storage is not enough to maintain the long-term power demand before the separation of the satellite and the rocket. The satellite is powered by the primary busbar, while the traditional battery direct power supply method of the carrier spacecraft has a large voltage fluctuation range, which cannot meet the quality requirements of the satellite load for the busbar

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