Spacecraft power system shunting regulation circuit anti-short-circuit control method

Abstract

The present invention discloses a spacecraft power system shunting regulation circuit anti-short-circuit control method. One reference signal output is added to a voltage reference row circuit on thebasis of outputting n reference signals, and the voltage of the new reference signal is the smallest. For each shunting regulation circuit, the working condition of a regulating tube is controlled bythe comparison result between a signal MEA and the original reference signal, and the working condition of a protecting tube is controlled by the comparison result between the signal MEA and the new reference signal. When the system works normally, the protecting tubes of the n shunting regulation circuits are all in the conducting state, the shunting regulation function of each shunting regulation circuit is realized by the corresponding regulating tube. According to the load power demand, the n shunting regulation circuits supply power for the load(s) depending on a sequential shunting regulation control mode; and when the regulating tube of a certain shunting regulation circuit has a short circuit fault, the shunting regulation function of the shunting regulation circuit is realized bythe corresponding protecting tube, and the shunting regulation sequence of the shunting regulation circuit is automatically regulated to the last grade.

Description

technical field [0001] The invention relates to the field of space power supplies, in particular to a short-circuit prevention control method for a shunt regulation circuit of a spacecraft power supply system. Background technique [0002] At present, the spacecraft power system uses a solar array-battery power system. When the spacecraft is in the light period, it relies on the solar cell array to absorb solar energy to supply power to the load and charge the battery, and at the same time, the excess energy returns to the solar cell array through the short-circuit circuit of the shunt regulation circuit of the power supply system. In recent years, the requirements for the life, reliability and power output capability of the spacecraft power system have become higher and higher, and one of the key factors affecting the life and reliability of the spacecraft power system is the energy output and adjustment capabilities of the power system. With the increasing demand for spac...

AI Technical Summary

Problems solved by technology

This method has certain shortcomings: the judgment is complicated and not timely

After a short-circuit fault occurs in the regulating tube of the shunt regulation circuit, the ground needs to make a judgment based on the relevant telemetry data of the power system, and it is bound to be impossible to isolate the fault phenomenon in real time

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