Vibration control for a flexible satellite with adaptive actuator fault-tolerant and input quantization

Abstract

In this paper, we study the vibration control for a flexible satellite with adaptive actuator fault-tolerant and input quantization. The control objective is to suppress the vibration of a flexible satellite as well as considering actuator fault-tolerant and input signal quantization. The flexible satellite is composed of a centrebody and two symmetrical flexible solar panels. The symmetrical flexible solar panels are described as two Euler-Bernoulli beams modeled as partial differential equations (PDEs). Quantitative control combines control and communication to solve related control problems in modern engineering systems. Logarithmic quantitative controllers are used to realize input signal quantization. Meanwhile, an adaptive control scheme is designed to regulate the vibration of the satellite when the actuator fails partially. Simulation results are demonstrated for illustration. It is proved that the proposed control scheme can handle the vibration of the flexible satellite as well as considering actuator fault-tolerant and input signal quantization simultaneously.