Control of BLDC Motor for Satellite Momentum Exchange

Document Type : Original Article

Authors

1 Egyptian Armed Force.

2 Prof. Dr., Ain Shams University.

Abstract

Abstract:
The reaction wheel is a small fraction of the spacecraft total mass. It permits very
precise changes in spacecraft attitude. A novel model of a single-axis position control on a
satellite is designed using Brushless DC (BLDC) motor with a resolver to exchange the
momentum of the satellite as a reaction wheel. The technique of attitude control is based on
considering the moment of inertia of the satellite as a part of the moment of inertia of
BLDC motor, so the control on a satellite becomes the control of a Brushless DC motor.
Two kinds of controllers are used (PID) controller and (FLC). The performance of both
controllers is evaluated to explain the main characteristics of each one.

Keywords