Attitude control of satellite with PWPF modulator using generalized incremental predictive control

In this paper, we use generalized incrementalpredictive control to stabilize attitude of satellite. We compare GPCwith GIPC algorithm and present that GIPC has better performance.The three-axis attitude control systems are activated in pulse mode.Consequently, a modulation of the torque command is compelling inorder to avoid high non-linear control action. This work considersthe Pulse-Width Pulse-Frequency modulator is composed of aSchmitt trigger, a first order filter, and a feedback loop. PWPFmodulator has several advantages over classical bang-bangcontrollers such as close to linear operation, high accuracy, andreduced propellant consumption.

Keywords:

predictive control , satellite , GIPC , PWPF