METHOD TO CONTROL AUTONOMOUS SYSTEM OF SPACECRAFT POWER SUPPLY Russian patent published in 2015 - IPC H02J7/00 

FIELD: electricity.

SUBSTANCE: invention relates to electric engineering, and namely to power supply systems (PSS) of spacecrafts (SC). The invention suggests the method intended to control the autonomous power supply system of spacecraft, which comprises a solar battery and N accumulator batteries, where N≥1, a voltage stabiliser coupled between the solar battery and load, and N of chargers and dischargers; the method lies in control of the voltage stabiliser, chargers and dischargers depending on input and output voltage of the power supply system, voltage of the accumulator batteries, prohibit of the respective charger operation when charging voltage of the accumulator battery or accumulator batteries reaches it limit value, this prohibit removal when a certain voltage level is reached for the accumulator battery, prohibit of the respective discharger operation when discharging voltage of the accumulator battery or accumulator batteries reaches it limit value, this prohibit removal when a certain voltage level is reached for the accumulator battery or batteries. The assigned task is solved by setting minimum period of time required to reach limit level of charging voltage for the accumulator battery or batteries since switching on of charging, at that when charging is switched on or when limit voltage level of the accumulator battery is reached within the period less than the minimum period of time, the mode of charging current limitation is switched on against the preset level of the accumulator battery charging voltage. At that minimum period of time required to reach limit level of charging voltage for the accumulator battery or batteries shall be less than 1 minute. Besides the mode of charging current limitation against the preset level of the accumulator battery charging voltage is switched off when charging voltage drops below the preset charging voltage level.

EFFECT: improved operational reliability of accumulator batteries included in PSS of SC.

3 cl, 1 dwg