| 摘要 |
FIELD: electricity. ^ SUBSTANCE: suggested invention is related to electrotechnical industry and may be used in creation and operation of autonomous power supply systems of artificial Earth satellites (AES). Method is suggested for load supply with DC current in composition of autonomous system of artificial Earth satellite power supply from sun battery and set of "n" secondary sources of power supply - lithium-ion accumulator batteries, which consists in stabilisation of voltage in load, performance of charge-discharge cycles through individual charge and discharge transducers, control of accumulator batteries voltage and limitation of charge and discharge of accumulator batteries by preset values of charge and discharge voltage. Besides, autonomous system of power supply is suggested, which contains sun battery connected to load via stabilised voltage transducer, "n" accumulator batteries connected via "n" charge transducers to sun battery, and via "n" discharge transducers to the load, at that every accumulator battery consists of "m" serially connected accumulators that have opening contacts of relay in serial circuit and closing contacts of relay that embrace every accumulator together with its serially connected opening contact. Objective of the present invention is increase of efficiency of accumulator batteries usage and specific energetic characteristics of autonomous power supply system. Technical result is achieved by the fact that whenever voltage of any accumulator battery drops below preset bottom value in the process of discharge, this voltage is stabilised in it. At that in autonomous power supply system additionally voltage stabiliser is introduced, which is connected with its inlet to accumulator batteries via "n" untying, in direction of discharge current flow, devices, and with its outlet connected to accumulator batteries via "n" untying, in direction of charge current flow, devices. Substance of suggested solution is explained in the drawing, where in fig. 1 functional diagram of autonomous power supply system is pictured, which explains operation according to suggested method. ^ EFFECT: provision of accumulator battery voltage stabilisation after achievement of preset bottom value. ^ 2 cl, 1 dwg |
