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Optimal linear quadratic control for wireless sensor and actuator networks with random delays and packet dropouts

Author

Listed:
  • Zhuwei Wang
  • Lihan Liu
  • Chao Fang
  • Xiaodong Wang
  • Pengbo Si
  • Hong Wu

Abstract

In this article, the optimal linear quadratic control problem is considered for the wireless sensor and actuator network with stochastic network-induced delays and packet dropouts. Considering the event-driven relay nodes, the optimal solution is obtained, which is a function of the current plant state and all past control signals. It is shown that the optimal control law is the same for all locations of the controller placement. Since the perfect plant state information is available at the sensor, the optimal controller should be collocated with the sensor. In addition, some issues such as the plant state noise and suboptimal solution are also discussed. The performance of the proposed scheme is investigated by an application of the load frequency control system in power grid.

Suggested Citation

  • Zhuwei Wang & Lihan Liu & Chao Fang & Xiaodong Wang & Pengbo Si & Hong Wu, 2018. "Optimal linear quadratic control for wireless sensor and actuator networks with random delays and packet dropouts," International Journal of Distributed Sensor Networks, , vol. 14(6), pages 15501477187, June.
    • Handle: RePEc:sae:intdis:v:14:y:2018:i:6:p:1550147718779560
    DOI: 10.1177/1550147718779560
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