Open AccessResilient dynamic event‐triggered control for multi‐area power systems with renewable energy penetration under DoS attacks
Author(s) -
Cheng Zihao,
Yue Dong,
Hu Songlin,
Huang Chongxin,
Dou Chunxia,
Ding Xiaohua
Publication year - 2020
Publication title -
iet control theory and applications
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.059
H-Index - 108
eISSN - 1751-8652
pISSN - 1751-8644
DOI - 10.1049/iet-cta.2019.1478
Subject(s) - control theory (sociology) , computer science , piecewise , electric power system , dwell time , network packet , renewable energy , upper and lower bounds , denial of service attack , power (physics) , control (management) , engineering , mathematics , physics , quantum mechanics , artificial intelligence , electrical engineering , medicine , mathematical analysis , clinical psychology , computer network , the internet , world wide web
Resilient dynamic event‐triggered control design problem is concerned for frequency stabilisation of multi‐area power systems with renewable energy penetration under transmission delay and denial‐of‐service (DoS) attacks. The main works are presented as followings: (1) A novel state‐space model is established to describe multi‐area power systems with solar and wind generation disturbance under load frequency control and virtual inertia control (LFC‐VIC). (2) The influence of DoS attacks is considered and first modelled by model‐based average dwell time (MDADT). A criterion of preserving desired exponential H ∞ performance is obtained about the required lower bound of average dwell time (ADT) of sleep intervals, namely τ F > ln λ 0 / α 1 and the tolerable upper bound of ADT of attack intervals, namely τ D < − ( ln λ 1 + ( α 0 + α 1 ) d M ) / α 0 . (3) To reduce communication load, a dynamic event‐triggered mechanism (DETM) is proposed and designed jointly with resilient LFC‐VIC scheme by using piecewise Lyapunov–Krasovskii functional method and LMIs technique. (4) To defence DoS attacks actively, based on the resulting MDADT criterion, a dynamic prediction strategy is proposed to compensate the packet drops with unknown bound subjected to attack strategy. Finally, a numerical example for a two‐area power system is carried out to verify the designed resilient LFC‐VIC scheme and the DETM.