Reconfigurable Controller Design For Actuator Faults In A Four-Tank System Benchmark

TL;DR

This paper presents a reconfigurable state feedback controller for a four-tank system that uses Parametric Eigenstructure Assignment to maintain control performance during actuator faults, demonstrated through simulation results.

Contribution

It introduces a novel reconfigurable controller design using PAE that compensates for actuator gain losses in fault scenarios, enhancing system robustness.

Findings

Improved control performance during actuator faults

Reduction in Integral Absolute Error (IAE) compared to non-reconfigurable controllers

Effective fault compensation demonstrated through simulations

Abstract

The purpose of this work is to design a state feedback controller using Parametric Eigenstructure Assignment (PAE) technique that has the capacity to be reconfigured in the case that partial actuator faults occur. The proposed controller is capable of compensating the gain losses in actuators and maintaining the control performance in faulty situations. Simulations show the performance enhancement in comparison to the non-reconfigurable controller through Integral Absolute Error (IAE) index for different fault scenarios.