Abstract
Variable speed control moment gyroscopes permit advantageous attitude control torque amplification through gimballing, effective actuator singularity avoidance through wheel speed variation, and electrical power tracking through wheel motor/generator energy conversion. For a typical redundant four-actuator pyramid cluster, the attitude and power tracking requirements can be met simultaneously, however, the competing requirements are strained when considering saturation of the key actuator parameters - gimbal angles and wheel speeds. This work evaluates and applies a control strategy to accommodate both gimbal angle and wheel speed saturation control amidst simultaneous attitude and power tracking plus control moment gyroscope singularity avoidance requirements.
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