| 摘要 |
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/(Ismax - Iscontr), where Ismax - maximum current of battery self-discharge and Iscontr - self-discharge current of control battery, -series circuit consisting of diode and resistor with R=(1,25 - UD)/(Ismax -Iscontr), where UD - voltage drop at diode, Ismax - maximum current of battery self-discharge and Iscontr - self-discharge current of control battery; - series circuit of two diodes and resistor with R=(1.25 - 2UD)/(Ismax - Iscontr), where UD - voltage drop at diode, Ismax - maximum current of battery self-discharge and Iscontr - 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 (Ismax - Iscontr) A, where Ismax -maximum current of battery self-discharge and Iscontr - self-discharge current of control battery. ^ EFFECT: increase in nickel-hydrogen battery effectiveness of use and improvement of reliable operation. ^ 6 cl, 6 dwg |
