Comparative study of various control methods for attitude control of a LEO satellite

摘要

A nonlinear attitude model of a satellite with thrusters, gravity torquers and a reaction wheel cluster is developed. Then the linearized version of this satellite attitude model is derived for the attitude hold mode. For comparison purposes, various control methods are considered for attitude control of a satellite. We consi- Der a proportional derivative controller which is actually used in the remote sensing satellite, KOMPSAT. Then a comparison is made with an H_2 CONTROLLER, AN H∞ controller, and a mixed H_2/H∞ controller.