Author: National Aeronautics and Space Administration (NASA)Publisher: Createspace Independent Publishing Platform
ISBN: 9781723215292
Category :
Languages : en
Pages : 110
Book Description
The results of a modelling and control study for an advanced momentum storage device supported on magnetic bearings are documented. The control challenge posed by this device lies in its dynamics being such a strong function of flywheel rotational speed. At high rotational speed, this can lead to open loop instabilities, resulting in requirements for minimum and maximum control bandwidths and gains for the stabilizing controllers. Using recently developed analysis tools for systems described by complex coefficient differential equations, the closed properties of the controllers were analyzed and stability properties established. Various feedback controllers are investigated and discussed. Both translational and angular dynamics compensators are developed, and measures of system stability and robustness to plant and operational speed variations are presented. Downer, James R. and Johnson, Bruce G. Unspecified Center ANGULAR MOMENTUM; CONTROL STABILITY; DYNAMIC CONTROL; MAGNETIC BEARINGS; SYSTEMS STABILITY; COMPENSATORS; CONTROL THEORY; FEEDBACK CONTROL; FLYWHEELS...
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Author: Claude R. Keckler
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