TY - JOUR
T1 - Distributed fault-tolerant PI load frequency control for power system under stochastic event-triggered scheme
AU - Yang, Jin
AU - Zhong, Qishui
AU - Ghias, Amer M.Y.M.
AU - Dong, Zhao Yang
AU - Shi, Kaibo
AU - Yu, Yongbin
PY - 2023/12/1
Y1 - 2023/12/1
N2 - This article investigates the load frequency control problem of interconnected power systems by proposing a distributed fault-tolerant proportional integral (PI) control strategy. Firstly, a unified actuator fault model is established, and a distributed fault-tolerant PI control strategy is proposed on the basis of the actuator fault model. Then, a stochastic event-triggered scheme (SETS) based on stochastic sampling period is developed to relieve the redundant occupation of network communication resources. Further, an asymptotical stability criterion with H∞ performance is established by means of the Lyapunov method. Finally, illustrative examples are presented from two cases, isolated power system and interconnected power systems, to demonstrate the effectiveness of the designed control approach and the superiority of SETS compared with periodic event-triggered scheme. © 2023 Elsevier Ltd.
AB - This article investigates the load frequency control problem of interconnected power systems by proposing a distributed fault-tolerant proportional integral (PI) control strategy. Firstly, a unified actuator fault model is established, and a distributed fault-tolerant PI control strategy is proposed on the basis of the actuator fault model. Then, a stochastic event-triggered scheme (SETS) based on stochastic sampling period is developed to relieve the redundant occupation of network communication resources. Further, an asymptotical stability criterion with H∞ performance is established by means of the Lyapunov method. Finally, illustrative examples are presented from two cases, isolated power system and interconnected power systems, to demonstrate the effectiveness of the designed control approach and the superiority of SETS compared with periodic event-triggered scheme. © 2023 Elsevier Ltd.
KW - Distributed PI control strategy
KW - Fault-tolerant control
KW - Load frequency control
KW - Power system
KW - Stochastic event-triggered scheme
UR - http://www.scopus.com/inward/record.url?scp=85170415697&partnerID=8YFLogxK
UR - https://www.scopus.com/record/pubmetrics.uri?eid=2-s2.0-85170415697&origin=recordpage
U2 - 10.1016/j.apenergy.2023.121844
DO - 10.1016/j.apenergy.2023.121844
M3 - RGC 21 - Publication in refereed journal
SN - 0306-2619
VL - 351
JO - Applied Energy
JF - Applied Energy
M1 - 121844
ER -