TY - JOUR
T1 - Reliable Event-Triggered Load Frequency Control of Uncertain Multiarea Power Systems With Actuator Failures
AU - Zhang, Meng
AU - Dong, Shanling
AU - Wu, Zheng-Guang
AU - Chen, Guanrong
AU - Guan, Xiaohong
PY - 2023/10
Y1 - 2023/10
N2 - Load frequency control (LFC) is crucial for the economic operation and safety of power systems. Therefore this paper addresses the LFC problem for uncertain multi-area power systems with actuator failures. Specifically, actuator failures, uncertainties and communication bandwidth constraints appearing in multi-area power systems are taken into account simultaneously, and novel reliable event-triggered LFC schemes are proposed to cope with these troubles. The proposed schemes can ensure the asymptotical stability of the closed-loop system when only matched uncertainty exists. For the case of coexisting matched and mismatched uncertainties, the state trajectories of the closed-loop system can be controlled within a bounded set, where the size of the bounded set is only related to the mismatched uncertainty. To illustrate the theoretical results, a numerical example of three-area interconnected power system is presented. © 2022 IEEE.
AB - Load frequency control (LFC) is crucial for the economic operation and safety of power systems. Therefore this paper addresses the LFC problem for uncertain multi-area power systems with actuator failures. Specifically, actuator failures, uncertainties and communication bandwidth constraints appearing in multi-area power systems are taken into account simultaneously, and novel reliable event-triggered LFC schemes are proposed to cope with these troubles. The proposed schemes can ensure the asymptotical stability of the closed-loop system when only matched uncertainty exists. For the case of coexisting matched and mismatched uncertainties, the state trajectories of the closed-loop system can be controlled within a bounded set, where the size of the bounded set is only related to the mismatched uncertainty. To illustrate the theoretical results, a numerical example of three-area interconnected power system is presented. © 2022 IEEE.
KW - actuator failure
KW - Actuators
KW - Closed loop systems
KW - Couplings
KW - event-triggered control
KW - Frequency control
KW - Load frequency control
KW - multi-area power system
KW - Power system reliability
KW - Power system stability
KW - uncertainty
UR - http://www.scopus.com/inward/record.url?scp=85139401686&partnerID=8YFLogxK
UR - https://www.scopus.com/record/pubmetrics.uri?eid=2-s2.0-85139401686&origin=recordpage
U2 - 10.1109/TASE.2022.3205176
DO - 10.1109/TASE.2022.3205176
M3 - RGC 21 - Publication in refereed journal
SN - 1545-5955
VL - 20
SP - 2516
EP - 2526
JO - IEEE Transactions on Automation Science and Engineering
JF - IEEE Transactions on Automation Science and Engineering
IS - 4
ER -