Title :
Optimal state feedback control for wireless networked control systems with decentralised controllers
Author :
Zhuwei Wang ; Xiaodong Wang ; Lihan Liu ; Mo Huang
Author_Institution :
Dept. of Electr. Eng., Columbia Univ., New York, NY, USA
Abstract :
In this study, the design of the optimal decentralised full-state-feedback controllers is derived for wireless networked control systems with network-induced delays. In particular, the authors formulate the optimal decentralised control problem as a non-cooperative linear quadratic game. Then, the optimal control strategy of each controller is obtained that is based on the current plant state and the last control strategies of decentralised controllers. The proposed optimal decentralised controllers reduce to the known controller under certain conditions. Moreover, the authors illustrate the application of the proposed decentralised state feedback control to load frequency control in power grid systems.
Keywords :
control system synthesis; decentralised control; delays; frequency control; game theory; networked control systems; optimal control; power grids; state feedback; load frequency control; network-induced delays; noncooperative linear quadratic game; optimal decentralised controllers; optimal decentralised full-state-feedback controller design; optimal state feedback control; power grid systems; wireless networked control systems;
Journal_Title :
Control Theory & Applications, IET
DOI :
10.1049/iet-cta.2014.0418