Congress detail

Authors: Esteban N. Osella; Hernán Haimovich; María M. Seron.

Resumen: We present a new output feedback fault tolerant control strategy for continuous-time linear systems. The strat- egy combines a digital nominal controller under controller- driven (varying) sampling with virtual-actuator (VA)-based controller reconfiguration to compensate for actuator faults. In the proposed scheme, the controller controls both the plant and the sampling period, and a fault detection mechanism performs controller reconfiguration by engaging in the loop the VA adapted to the diagnosed fault. The VA also operates under controller-driven sampling. Two independent objectives are considered: (a) closed-loop stability with setpoint tracking and (b) controller reconfiguration under faults. Our main contribution is to extend an existing VA-based controller reconfiguration strategy to systems under controller-driven sampling in such a way that if objective (a) is possible under controller-driven sampling (without VA) and objective (b) is possible under uniform sampling (without controller-driven sampling), then closed-loop stability and setpoint tracking will be preserved under both healthy and faulty operation for all possible sampling rate evolutions.

Meeting type: Conferencia.

Type of job: Artículo Completo.

Production: Fault-tolerant control under controller-driven sampling using a virtual actuator strategy.

Scientific meeting: 3rd Australian Control Conference.

Meeting place: Perth.

Organizing Institution: University of Western Australia.

It's published?: Yes

Publication place: Perth

Meeting month: 11

Year: 2013.

Link: here