MOMENTUM MANAGEMENT FOR REACTION WHEEL BY USING NULL SPACE VECTOR AND METHOD

摘要

A reaction wheel momentum distribution method is provided, which improves the attitude control mobility of satellite by calculating the zero torque of wheel through the simple calculation. The current speed and momentum of wheel are measured in real time. The measured current speed and the momentum are compared with the top speed and momentum set in advance. According to the current speed, momentum and top speed, and the difference of the momentum, the zero torque is calculated. The wheel torque required for the attitude control and stability of satellite is added to the zero torque. By using the input torque of the wheel, the wheel is made in the optimum bias momentum state.