Hybrid PID-FUZZY Control of Formation Flying of Spacecrafts in order to asteroid Deflection Mission

Abstract

In this paper, the hybrid control of the formation flying of spacecrafts has been investigated. The trajectory deflection of space asteroids, which are potentially life-threatening on Earth, are being actively pursued in recent scientific researches. To accomplish this mission, several methods have been proposed to date, in which case the use of gravity tractor is an indicator and hence the method is used in this paper. The formation flight of spacecrafts technology is a function of the relative dynamic equations, which are also used for its active control. In this way, the PID controller, which is widely used in various industries and inherently has robust properties, has been used as a base controller, and the fuzzy control has been used to improve its adjustment, which results in the results obtained. From simulation, the performance of the combined controller performance is effective.

Keywords

• asteroid deflection
• asteroid apophis
• spacecrafts formation flying
• relative dynamic of motion
• fuzzy logic
• pid-fuzzy controller