Operator-Based Robust Fault Tolerant Control with SVM-based Early Detection for Sensor Faults

Considering sensor faults for microreactor system actuated by Peltier devices, this work proposes an operator-based robust nonlinear fault tolerant controller (FTC) integrated with early fault detection by Support Vector Machine (SVM). Firstly, a physical model is formulated based on the law of heat transfer and the estimated model is derived based on Volterra identification. Then, an operator-based robust nonlinear control system is employed to compensate the uncertainties and eliminate the effects of coupling. Furthermore, FTC integrated with SVM-based early fault detection is designed to improve the safety performance in the case of sensor faults. The simulation results indicate that SVM-based fault detection can shorten the detection time by comparison on the conventional method without SVM classier, meanwhile the FTC can also obtain desired tracking performance.