METHOD OF CONTROL OF SPACECRAFT POWER SUPPLY SYSTEM Russian patent published in 2007 - IPC B64G1/42 B64G1/44 

FIELD: spacecraft onboard power supply systems.

SUBSTANCE: proposed method includes determination of charge-discharge characteristics of onboard power supply sources, transformation of energy of external power sources, maintenance of required state of charge of onboard power sources due to energy of external power sources and consumption of energy power requirements exceed transformed energy of external power sources. Intervals of flight time required for maintenance of probable and determined level of state of charge of onboard power sources are also determined. At probable level when power requirements exceed transformed energy of external power sources, amount of energy in onboard power source required for performing the program is determined. Then, intervals of time of charge and self-discharge of onboard power sources are determined; besides that, shift of beginning of charge of onboard power sources ensuring required amount of energy is determined. Required state of charge of onboard power sources is maintained at said intervals of their charge-discharge at control of power consumption in accordance with flight program. When energy transformed from external power sources exceed consumed power, onboard power source is charged and state of charge is maintained at charge-discharge intervals. Time intervals for maintenance of determined state of charge of onboard power sources when consumed power exceeds transformed power of external sources is predicted. Before beginning of these intervals, determined charge of onboard power sources is performed at said charge-discharge intervals. Then, power requirements of onboard power sources are regulated in accordance with flight program ensuring excess of discharge energy of onboard power sources by consumed energy. Upon completion of predicted interval, onboard power source is charged for subsequent maintenance of probable state of charge of onboard power sources. When necessary shift is made for above-indicated determined charge of onboard power sources after which probable and determined charge are alternated.

EFFECT: enhanced reliability of method due to enhanced use of onboard and external power sources.

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