Large-scale System Decentralized Robust Fault Tolerant Control

The scale of control system expands as a result of an increasement of components it contains in rapid industrial technology improvement process. However, it is inevitable that some components work out of order due to long time running. These faults can degrade the performance of system drastically, or even make the system out of control, which can result in serious consequence. Fault-tolerance control is a methodology which tolerant the fault system makes during operation, which means that this technique guarantee the system to work stably and safely in case of some disturbances result from its sub-systems breakdown.By using the linear matrix inequality (LMI), this paper considers some resolutions to problems in continuous large-scale systems and continuous large-scale systems with time-delay as follows:1. The problem of linear continuous large-scale systems is studied. First, the fault-tolerant controller is designed for sensor failure in the constant systems, then, controller is designed for sensor failures in the system with parameter uncertainties. At last, a simulation is illustrated to validate the feasibility of my design. Further, actuator failures are considered within the same systems, with simulations proving of the design.2. The problem of linear continuous large-scale systems with time-delay is studied. First, the fault-tolerant controller is designed for sensor failure in the constant systems, then, controller is designed for sensor failures in the uncertain systems. At last, a simulation is given to testify the feasibility. Further, actuator failures are considered within the same systems, and an example is given to show the feasibility.