Spacecraft power supply junction capacitance suppression control system and control method thereof

Abstract

The invention relates to a spacecraft power supply junction capacitance suppression control system and a control method thereof, and the system comprises a solar cell array, wherein a first circuit port of the solar cell array is grounded; a junction capacitor which is connected with the solar cell array in circuit connection in parallel; a suppression inductor, wherein one end of the suppression inductor is in circuit connection with a second circuit port of the solar cell array, and the other end is respectively connected with an isolation diode and a control switch tube; a peak current sampling resistor, wherein one end of the peak current sampling resistor is grounded, the other end is connected with the control switch tube in circuit connection, and the peak current sampling resistor is used for collecting peak current signals; a peak current suppression circuit, wherein one end of the peak current suppression circuit is in circuit connection between the control switch and the peak current sampling resistor, and the other end is in circuit connection with a driving circuit; when the control switch tube is closed and conducted, the suppression inductor is used for suppressing the current in the grounding loop, and the peak current is prevented from being too large. The invention has the advantages of simple and reliable circuit structure, small circuit system heating and simple suppression control method.

Description

technical field [0001] The invention relates to the technical field of aerospace power supply control, in particular to a novel spacecraft power supply junction capacitance suppression control system and a control method thereof. Background technique [0002] Power Subsystem The solar array is the main power source of the satellite. When the satellite is in the light period, the solar cell array uses the photovoltaic effect of the solar cell to convert solar energy into electrical energy with the highest possible efficiency to supply power for the entire star load. In addition, while meeting the load demand during the full-sunlight period, the solar cell array charges the whole-stellar battery with the abundant electric energy during the full-sunlight period, and the battery provides the electricity demand for the whole-sunshade period after charging. When the short-term power consumption of the satellite in the illuminated area exceeds the power supply capacity of the sola...

AI Technical Summary

Problems solved by technology

[0004] The purpose of this invention is to provide a kind of spacecraft power supply junction capacitance suppression control system and its control method, to solve the problem of how to correctly and rationally design the solar cell array junction capacitance suppression circuit, and this junction capacitance suppression control system has a simple and reliable circuit structure at the same time , the circuit system has the advantages of small heat generation, wide coverage, and simple suppression control method

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