Intermittent Fault Tolerance Analysis Spacecraft Attitude Control System

Discloses a spacecraft attitude control system for intermittent fault tolerance analysis method of the present invention, the steps are: Firstly, the spacecraft attitude control system mathematical model; secondly mathematical model of intermittent faults the controller; controller is designed using Lyapunov method, and They are portrayed under normal and fault conditions the behavior of the attitude control system, running with random switching system model to describe intermittent faults spacecraft attitude control system of the whole process; and then the fault-tolerant attitude control system to analyze problems with the conversion to stability analysis of the problem of unstable modes switching system provides a fault-tolerant real-time criterion to determine whether the current system is stable as long as the criterion is satisfied, you do not need to take any measures for fault-tolerant control system in normal and fault conditions By balancing effect can still remain stable. The invention avoids the use of fault-tolerant control of fault-tolerant control and high control energy generated during the implementation of high computational complexity and risk.