TY - GEN
T1 - Stability analysis of event-triggered networked control systems with time-varying delay
AU - Wang, Zhao
AU - Sun, Jian
AU - Chen, Jie
N1 - Publisher Copyright:
© 2015 Technical Committee on Control Theory, Chinese Association of Automation.
PY - 2015/9/11
Y1 - 2015/9/11
N2 - Networked control systems(NCSs) are facing a great challenge from the limitation of network communication resources. Event-triggered control (ETC) is often used to reduce the amount of communications while still keeping a satisfactory performance of the system, by transmitting the state measurements only when an event-triggered condition is met. However, some network-induced problems would happen inevitably, such as communication delay. The delay can degrade the control performance significantly and can even lead to instability. In this paper, we study an NCS considering both ETC and time-varying delay, which is rare in the literature. We formulate the system as a discretized piecewise linear system with exponential uncertainty. Then the model is embedded in a polytopic approximation with better structure suitable for stability analysis. Stability conditions are derived in terms of linear matrix inequalities (LMIs). Finally, the developed method is illustrated by a numerical example.
AB - Networked control systems(NCSs) are facing a great challenge from the limitation of network communication resources. Event-triggered control (ETC) is often used to reduce the amount of communications while still keeping a satisfactory performance of the system, by transmitting the state measurements only when an event-triggered condition is met. However, some network-induced problems would happen inevitably, such as communication delay. The delay can degrade the control performance significantly and can even lead to instability. In this paper, we study an NCS considering both ETC and time-varying delay, which is rare in the literature. We formulate the system as a discretized piecewise linear system with exponential uncertainty. Then the model is embedded in a polytopic approximation with better structure suitable for stability analysis. Stability conditions are derived in terms of linear matrix inequalities (LMIs). Finally, the developed method is illustrated by a numerical example.
KW - Networked control system
KW - event-triggered control
KW - piecewise linear system
KW - polytopic approximation
KW - stability
KW - time-varying delay
UR - https://www.scopus.com/pages/publications/84946550241
U2 - 10.1109/ChiCC.2015.7260689
DO - 10.1109/ChiCC.2015.7260689
M3 - 会议稿件
AN - SCOPUS:84946550241
T3 - Chinese Control Conference, CCC
SP - 6657
EP - 6661
BT - Proceedings of the 34th Chinese Control Conference, CCC 2015
A2 - Zhao, Qianchuan
A2 - Liu, Shirong
PB - IEEE Computer Society
T2 - 34th Chinese Control Conference, CCC 2015
Y2 - 28 July 2015 through 30 July 2015
ER -