SIMULATING THE PROCESS OF MICROSATELLITE ANGULAR VELOCITY DECREASE USING VARIOUS LAWS OF ELECTROMAGNETIC COIL CONTROL

摘要

We consider controlled reduction of angular velocity of rectangular block-shaped microsatellite decelerating from the initial high values to the given low values. The range of the considered angular velocities of a microsatellite corresponds to the instrumental error of angular velocity sensors. Attitude control system of a microsatellite contains three onboard electromagnetic coils used as actuating devices. We consider the traditional control laws for electromagnetic coils that are convenient for practical application but have insufficient speed performance. It is shown that the use of new optimized control laws for coils allows achieving significant progress in increasing the speed performance of magnetic control systems providing deceleration from the initial high values to the given low values. Using the results of numerical simulations, we perform a comparative analysis of traditional and some new optimized control laws for electromagnetic coils. As the result, we determine the best control law for electromagnetic coils in terms of speed performance.