Automatic charge control system for geosynchronous satellites

Shuman, B.; Cohen, H. A.; Hyman, J.; Robson, R.; Santoru, J.; Williamson, W. S.

doi:10.1016/0304-3886(87)90091-x

Cited by 5 publications

(2 citation statements)

References 3 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The charge redistribution and interaction with the space environment is assumed to be orders of magnitude faster than the spacecraft motion. As an example, with charge control the response time is on the order of milliseconds in GEO [32,33]. The total electrostatic force and torque about the center of the cylinder are then given by the summations…”

Section: Multi-sphere Methodsmentioning

confidence: 99%

Prospects of Relative Attitude Control Using Coulomb Actuation

Schaub

Stevenson

2013

J of Astronaut Sci

View full text Add to dashboard Cite

The relative attitude is studied between two charge controlled spacecraft being held at a fixed separation distance. While one body has a spherical shape, the 2nd body is assumed to be non-spherical and tumbling. The attitude control goal is to arrest the rotation of the 2nd body. While prior work has identified the existence of torques between charged bodies, this is the first analytical study on a charged feedback attitude control. Using the recently developed multi-sphere method to provide a simplified electrostatic force and torque model between non-spherical shapes, Lyapunov theory is used to develop a stabilizing attitude control using spacecraft potential as the control variable. Zero and non-zero equilibrium potentials are considered, with the later suitable for the electrostatic tug concept. With a pulling configuration, the cylinder will come to rest with the long axis aligned with the inter-vehicle axis in a stable configuration. For a pusher, the cylinder will settle 90 degrees rotated from this axis. Numerical simulations illustrate the control performance.

show abstract

Section: Multi-sphere Methodsmentioning

confidence: 99%

Prospects of Relative Attitude Control Using Coulomb Actuation

Schaub

Stevenson

2013

J of Astronaut Sci

View full text Add to dashboard Cite

show abstract

“…These sources control both the structure potential and the dielectric surface potentials. AFGL is currently developing a Charge Control System (CCS) containing a plasma source for controlling charging on geosynch rono us spacecraft [87].…”

Section: Mitigation Techniquesmentioning

confidence: 99%