PROJECT TITLE :

Unified saturated proportional derivative control framework for asymptotic stabilisation of spacecraft

ABSTRACT:

In this study, the authors propose a unified approach to saturated proportional spinoff (SPD) controller style for asymptotic attitude stabilisation of spacecraft subject to actuator constraints. It is shown that a category of simple and high computation economical SPD controller will guarantee asymptotic stabilisation of spacecraft with actuator constraints. The proposed SPD controller utilises the overall saturation function, and thus provides a unified framework for asymptotic stable management style of spacecraft subject to actuator constraints. Benefits of the proposed design framework include the intuitive structure, high computation efficiency, simple implementation and asymptotic stabilisation with the ability to ensure that actuator constraints don't seem to be violated. This is often accomplished by selecting control gains a priori. 2 examples are presented to demonstrate the effectiveness and therefore the improved performance of the proposed approach.