LQR Controller for Kufasat

Mohammed Chessab Mahdi, Mohammed Jaafar AL-Bermani


In this paper, Linear Quadratic Regulator (LQR)controller is applied to the attitude stabilization control of Kufasat. Using the linearized equations of motion for a rigid body in space, the linearized stability, effectiveness and robustness of a linear quadratic regulator (LQR) control design were compared with that of a Proportional-Integral-Derivative (PID) control design. The detailed design procedure of the LQR controller is presented. Simulation results show that precise attitude control is accomplished and the time of satellite maneuver is shortened in spite of the uncertainty in the system.

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