In case of redundant systems some kind of faults could be tolerated simply by changing the rulebase of the control system by a system (strategy) reconfiguration. One solution for this kind of system reconfiguration could be the combination of the fuzzy clustering based symptom evaluation and the hierarchical interpolate fuzzy reasoning the similarity based system reconfiguration. Its main idea ...

In this paper, we propose a dynamic approach to programmable logic controller (PLC) reconfiguration that is based on the IEC 61499 standard for distributed, real-time control systems. With this form of reconfiguration control, contingencies are made for all possible changes that may occur. We illustrate this approach with a simple system configuration that uses Rockwell Automation's Function Bl...

This paper presents reconfigurable control system for ship coursechanging/keeping. Adaptive neuro-fuzzy inference system (ANFIS) is used to identify a steering gear subsystem (actuator) in order to build an accurate reference model for the fault detection in this non-linear component. The proposed control system uses a compensator for reducing the loss of the control performance produced by fau...

Adaptable systems can improve reliability and performance by allowing dynamic reconfiguration. We are conducting a series of experiments on the RAID distributeel database system to siudy the cost and performance impHcations of providing static and dynamic adaptability, and for increasing the availabiliiy of daia iiems. Our studies of the cost of our adaptable implementation wefe conducted in th...

Pumped storage units bring stability to the electrical power system, so they must remain connected to the grid even during grid faults. In this paper, the authors propose efficient and simple solutions for a doubly fed induction machine pumped storage (DFIMPS) system during grid faults. In case of balanced grid faults, a control reconfiguration strategy is introduced and a hardware solution is ...

This project looks at the problem of creating an online distributed control method to solve the reconfiguration problem in reconfigurable robotics. We look at breaking down the global reconfiguration task into local tasks that can be performed robustly by the individual modules in order to achieve the global reconfiguration task. This is done by the modules first learning local reconfiguration ...

A fault tolerant control system design technique has been proposed and analyzed for managing performance degradation in the presence of multiple faults in actuators. The method is based on a control structure with model reference reconfigurable control design in an inner loop and command input adjustment in an outer loop. The reduced dynamic performance requirements in the presence of different...

This work considers the problem of control actuator fault detection and isolation and fault-tolerant control for a multi-input multi-output nonlinear system subject to constraints on the manipulated inputs and proposes a fault detection and isolation filter and controller reconfiguration design. The implementation of the fault detection and isolation filters and reconfiguration strategy are dem...

This paper deals with a novel Plug-and-Play (PnP) architecture for the control and monitoring of Large-Scale Systems (LSSs). The proposed approach integrates a distributed Model Predictive Control (MPC) strategy with a distributed Fault Detection (FD) architecture and methodology in a PnP framework. The basic concept is to use the FD scheme as an autonomous decision support system: once a fault...