Adaptive Optimal Fault-Tolerant Control Based on Fault Degree

In order to solve the problems such as the lack of basis for the classification of fault severity and the obvious limitation of the direct classification of reliability by traditional experience, a fault severity metric standard combined with gap metric method is proposed. Firstly, a new fault classification method is defined by introducing the method of gap metric, through which the fault severity can be determined intuitively and conveniently. Then, according to different fault conditions, the fault-tolerant control of the fault-tolerant system is combined with the preset optimal fault tolerant control measures, so as to effectively improve the robustness of the system. Finally, two kinds of adaptive optimal fault-tolerant controllers based on fault degree are designed, and the effect of fault-tolerant control is compared and analyzed.Simulation results show that the proposed method is more flexible and efficient than conventional fault-tolerant methods. © 2024 Journal of Computer Engineering and Applications Beijing Co., Ltd.; Science Press. All rights reserved.