METHOD TO CONTROL ELECTRIC POWER SUPPLY SYSTEM OF SPACE VEHICLE OF INCREASED SURVIVABILITY Russian patent published in 2017 - IPC H02J7/35 

FIELD: electricity.

SUBSTANCE: method to control electric power supply system of space vehicle (SV) of increased surviveability contains a photoelectric battery (PB), n storage batteries (SB) and n charging and discharging devices, and consists in the fact that the charging and discharging devices are controlled depending on PB illumination, level of the charge of all the SB, input and output voltage of the power supply system (PSS); prohibition of operation of the corresponding charging device is prevented when maximum level of charge of given SB is reached and this prohibition is cancelled at the level of charge of given SB reduces; prohibition of operation of the corresponding discharge device is prevented when a preset minimum level of charge of given SB is reached and this prohibition is cancelled at the level of charge of given SB increases; a control signal is formed to onboard control system of the SV for disconnecting a portion of onboard equipment in case of emergency discharge of several SB (m≤n) to minimum level of charge; e operation of all discharge devices is prohibited if PSS output voltage of power line is reduced to preset threshold value; the control signal is reset to upon prohibition of all discharge devices after all the SB are charged to a preset level of charge. Wherein, for communication with on-board computer system (OCS), performed on the duplicated main serial interface (multiplexed exchange channel), an end device (ED) with a controller is used as the interface device. Each charge-discharge device is equipped with main (ED_i-m) and backup (ED_j-m) end devices. The parameters (arrays) of PSS are checked with given interval to identify failure (operability) of each ED_i-m. The fact of exchange error is taken as a criterion for ED failure. After identification of ED_i-m failure in any closed distribution system reload of ED_i-m software is performed. The ED is reloaded by moving to the backup EDU_j-m with subsequent return to the main ED_i-m. Repeat the sequence of these operations, in the event of ED failure_i-m, exchange continues using the ED_i-m, in case of repeated identification of the failure of the ED_i-m program transition to the backup end device ED_j-m is performed asing the appropriate CU, the sequence of operation of the ED_j-m is selected on a similar sequence of operation of the ED_i-m, return from the ED_j-m to ED_i-m is carried out by means of a single command from the ground control complex if necessary.

EFFECT: improved reliability and survivability of power supply system functioning.

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