Control method for anti-short circuit of shunt regulation circuit in spacecraft power system

Abstract

In the anti-short circuit control method of the shunt adjustment circuit of the spacecraft power supply system of the present invention, the voltage reference row circuit adds a reference signal output on the basis of the original output n reference signals, and the voltage of the newly added reference signal is the smallest; for each shunt adjustment circuit , the working state of the regulating tube is controlled by the comparison result of the signal MEA and the original reference signal, and the working state of the protection tube is controlled by the comparison result of the signal MEA and the newly added reference signal; In the conduction state, the shunt adjustment function of each shunt adjustment circuit is realized by its own adjustment tube. According to the power demand of the load, the n-way shunt adjustment circuits supply power to the load in accordance with the sequential shunt adjustment control mode; when the adjustment tube of a certain shunt adjustment circuit In the event of a short-circuit fault, the shunt adjustment function of the shunt adjustment circuit is realized by its protection tube, and the shunt adjustment order of the shunt adjustment circuit is automatically adjusted to the last stage.

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

Images