US 11,767,134 B2
Power-enhanced slew maneuvers
Skylar Cox, North Logan, UT (US); Tyson Smith, Logan, UT (US); and Tanner Lex Jones, Logan, UT (US)
Filed by Space Dynamics Laboratory, North Logan, UT (US)
Filed on Jul. 29, 2021, as Appl. No. 17/389,246.
Claims priority of provisional application 63/059,073, filed on Jul. 30, 2020.
Prior Publication US 2022/0033109 A1, Feb. 3, 2022
Int. Cl. B64G 1/24 (2006.01)
CPC B64G 1/242 (2013.01) [B64G 1/244 (2019.05); B64G 2001/247 (2013.01)] 15 Claims
OG exemplary drawing
 
1. A method comprising:
determining, by use of a processor, a power collection function for a satellite;
determining a power cost function Cαw for the satellite as Cαw=Σt0tfp(t)dt wherein p(t) is a reaction wheel consumption for time t the satellite slews from a first frame t0 to a second frame t;
determining a cost function Ji(xN) from the power collection function and the power cost function as Ji(xN)=−CpPbN+Cθ(x2N−θd)2 wherein PbN is battery charge, Cp is a nonzero weighting factor for the battery charge, Cθ is power collected, x is a satellite position, and θd is a satellite orientation;
calculating a power enhanced slew maneuver by minimizing the cost function subject to the power collection function and the power cost function; and
maneuvering the satellite with the power enhanced slew maneuver.