METHOD OF NICKEL-HYDROGEN BATTERY OPERATION IN ARTIFICIAL EARTH SATELLITE STAND-BY POWER SUPPLY SYSTEM Russian patent published in 2008 - IPC H01M10/44 H01M12/08 

FIELD: electricity; physics.

SUBSTANCE: according to invention, method of nickel-hydrogen battery operation in artificial earth satellite stand-by power supply system includes charge-discharge cycles with limiting charging by pressure sensors installed on control batteries of the main battery, battery storage in full-charge state and periodic recharging to compensate battery self-discharge capacity during storage. Self-discharge currents in control batteries are additionally controlled by external discharge circuit. External discharge circuit can be made as: - resistor with R=1.25/(Is_max - Is_contr), where Is_max - maximum current of battery self-discharge and Is_contr - self-discharge current of control battery, -series circuit consisting of diode and resistor with R=(1,25 - U_D)/(Is_max -Is_contr), where U_D - voltage drop at diode, Is_max - maximum current of battery self-discharge and Is_contr - self-discharge current of control battery; - series circuit of two diodes and resistor with R=(1.25 - 2U_D)/(Is_max - Is_contr), where U_D - voltage drop at diode, Is_max - maximum current of battery self-discharge and Is_contr - self-discharge current of control battery; - current stabiliser. Also, external discharge circuit is switched during battery operation and time of on-line state is controlled depending on current battery capacity. Level to stabilised current is controlled during battery operation within the range from 0 A to (Is_max - Is_contr) A, where Is_max -maximum current of battery self-discharge and Is_contr - self-discharge current of control battery.

EFFECT: increase in nickel-hydrogen battery effectiveness of use and improvement of reliable operation.

6 cl, 6 dwg