Jorge Cortés
Professor
Cymer Corporation Endowed Chair
Performance-barrier-based event-triggered control
with applications to network systems
P. Ong, J. Cortés
IEEE Transactions on Automatic Control 69 (7)
(2024), to appear
Abstract
This paper proposes a novel framework for
resource-aware control design termed performance-barrier-based
triggering. Given a feedback policy, along with a
Lyapunov function certificate that guarantees its
correctness, we examine the problem of designing its
digital implementation through event-triggered
control while ensuring a prescribed performance is
met and triggers occur as sparingly as possible.
Our methodology takes into account the
performance residual, i.e., how well the
system is doing in regards to the prescribed
performance. Inspired by the notion of control
barrier function, the trigger design allows the
certificate to deviate from monotonically
decreasing, with leeway specified as an increasing
function of the performance residual, resulting in
greater flexibility in prescribing update times. We
study different types of performance specifications,
with particular attention to quantifying the
benefits of the proposed approach in the exponential
case. We build on this to design intrinsically
Zeno-free distributed triggers for network systems.
A comparison of event-triggered approaches in a
vehicle platooning problem shows how the proposed
design meets the prescribed performance with a
significantly lower number of communication
updates.
pdf
Mechanical and Aerospace Engineering,
University of California, San Diego
9500 Gilman Dr,
La Jolla, California, 92093-0411
Ph: 1-858-822-7930
Fax: 1-858-822-3107
cortes at ucsd.edu
Skype id:
jorgilliyo