A fault-tolerant control strategy for non-linear system: An application to the two tank canonical noninteracting level control system

Authors:
Publisher website
Google Scholar
Abstract
Two tank canonical system is highly used in process industries because of its mechanical structure which contributes fast release for liquid, slurries, viscous, and solid mixture. Two tank canonic system is highly nonlinear system due to its shape and varying cross-sectional area, hence the level control of this system is extremely difficult due to nonlinear behavior of the system. As a matter of facts, when abnormal activity occur such as system component, actuator and sensor faults occur in the system and hence system performances degrade drastically and a hazardous situation occurs. Fault-tolerant control is an advanced control strategy, which maintains control performance and system stability even though fault occurred in the system. The paper attributes to design a passive FTC strategy for a Two-Tank Canonical Non-Interacting Level Control System (TTCNILCS) with the constraint of a system, actuator faults, and process disturbances. FTC will increasing system performance in the presence of the faults. The simulation results demonstrate the proposed strategy has definite fault tolerant ability against the system and actuator faults also it has disturbance rejection capability. To verify the efficacy of the proposed passive FTC strategy Mean Square Error (MSE) indices is used.

This publication has 11 references indexed in Scilit: