METHOD TO CONTROL POWER SUPPLY SYSTEM OF SPACECRAFT Russian patent published in 2015 - IPC H02J7/34 

FIELD: electricity.

SUBSTANCE: invention relates to self-contained power supply systems (PSS) of spacecrafts (SC) using the solar-voltaic arrays as initial power sources, and batteries as energy accumulating units. One of two solar panels is CW rotated from the neutral position as per pitching motion, the other panel is rotated CCW or opposite to angles φ₁, φ₂, respectively, created by the SC longitudinal axes and front and rear solar panels. Illuminated planes of the solar panels after their turning create the blunt angle (180°+φ₁+φ₂); presence of the maximum power take-off mode of the solar-voltaic array is confirmed as per law of input voltage change in time at luminous section of SC orbit. This diagram of the panels turning is used for relatively small angles β between the orbit plane and direction to the Sun, for example, in change range from minus 30° to plus 30°, and permitted angle of turn of the panels φ_1add and φ_2add are determined on condition: φ_1add ≤ φ_1opt = arccos(R₃/(R₃+H₁)), φ_2add ≤ φ_2opt = arccos (R₃/(R₃+H₂)), where φ_1opt is optimal turn angle when maximum power take-off of front panel is ensured; φ_2opt is optimal turn angle when maximum power take-off of rear panel is ensured; R₃ is the earth radius; H₁ is SC orbit altitude at point where it leaves the shadow section; H₂ is SC orbit altitude at point where it enters the shadow section.

EFFECT: inhibition of the process of accident occurrence due to power balance breaking.

5 dwg