Title :
Resilient event triggered systems with limited communication
Author :
Lichun Li ; Bin Hu ; Lemmon, Michael
Author_Institution :
Dept. of Electr. Eng., Univ. of Notre Dame, Notre Dame, IN, USA
Abstract :
A resilient control system is one that maintains state awareness and an accepted level of operational normalcy in response to unexpected disturbances. There has recently been great interest in event-triggered control for networked systems. It is unclear, however, whether event-triggering is appropriate for resilient control because of the sporadic nature of the feedback. This paper examines the bit-rates needed to realize event-triggered systems that are resilient to transient faults. Using techniques from dynamically quantized control, we derive sufficient resilient bit-rates for nonlinear scalar systems with affine controls and disturbances. For linear systems, these sufficient rates are necessary for stabilizability. The results in this paper suggest that, at least for transient faults, resilient control is indeed achievable using event-triggered feedback.
Keywords :
feedback; nonlinear systems; quantisation (signal); stability; affine control; event triggered control; event triggered feedback; event triggering; limited communication; linear system; networked system; nonlinear scalar system; operational normalcy; quantized control; resilient bit rates; resilient control system; resilient event triggered system; stabilizability; state awareness; transient fault; Control systems; Decoding; Delay; Equations; Resilience; Transient analysis; Upper bound;
Conference_Titel :
Decision and Control (CDC), 2012 IEEE 51st Annual Conference on
Conference_Location :
Maui, HI
Print_ISBN :
978-1-4673-2065-8
Electronic_ISBN :
0743-1546
DOI :
10.1109/CDC.2012.6426151