Abstract
Many of the control problems associated with a large manned space station stem from the need for large amounts of electrical power and the associated large solar arrays required to supply that power. Designs with large planar arrays will have fundamental structural frequencies as low as 0.1 Hz. This frequency is close to the attitude control system bandwidth and within the bandwidth of crew motion disturbances. One solution is to detach the power plant from the space station. A preliminary control system design for a free-flying power station is discussed in this paper. The control system maintains both attitude and position relative to the space station using thrusters with state information supplied by the space station; a laser and optical sensors are used to sense the power station attitude and relative position. A brief discussion of power transmission options is included.
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