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Paper Information

Journal:   JOURNAL OF SPACE SCIENCE AND TECHNOLOGY (JSST)   FALLL 2009-WINTER 2010 , Volume 2 , Number 5; Page(s) 35 To 42.
 
Paper: 

SPACECRAFT OPTIMAL ATTITUDE CONTROL BY MEANS OF REACTION WHEELS

 
 
Author(s):  MIRI ROKNABADI S.H.*, MIRSHAMS S.M., NIKKHAH A.A.
 
* K.N. TOOSI UNIVERSITY OF TECHNOLOGY, AEROSPACE ENGINEERING FACULTY, TEHRAN, IRAN
 
Abstract: 

This paper presents an optimal altitude maneuver by means of Reaction Wheels to achieve desired altitude for a Satellite. At .first, Dynamic Equations of motion for a satellite with three Reaction Wheels as its active actuators has been educed, and then State Equations of this system has been obtained In derivation of equations, coupling of Reaction Wheel electrical equations with dynamic equations of satellite motion, and Reaction wheel saturation avoidance approaches are considered. Then an optimal altitude control with the LQR method has exerted for a distinct satellite by its Reaction Wheels. As a result of simulation has presented an optimal effort by calculated Gain matrix, to achieve desired altitude for chosen Satellite. It shows that satellite becomes stable in desired altitude with a low energy and time consumption.

 
Keyword(s): SATELLITE ATTITUDE MANEUVER, REACTION WHEEL, LINEAR OPTIMAL CONTROL
 
References: 
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