Journal
ISA TRANSACTIONS
Volume 91, Issue -, Pages 21-31Publisher
ELSEVIER SCIENCE INC
DOI: 10.1016/j.isatra.2019.01.031
Keywords
Load frequency control; Finite-time stability; Power systems; Electric vehicles; Non-fragile control
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This paper establishes an observer-based finite-time non-fragile load frequency control design using electric vehicles for power systems with modeling uncertainties and external disturbances. A state space representation of the addressed power systems together with dynamic interactions of electric vehicles is formulated. A full-order observer-based non-fragile controller is designed to ensure finite-time boundedness and satisfactory finite-time H-infinity performance of the considered system. By constructing an augmented Lyapunov-Krasovskii functional and employing Wirtinger-based integral inequality, the required conditions are obtained in terms of linear matrix inequalities. The desired non-fragile load frequency control law is presented via the observer-based feedback approach. Simulations are given to show the effectiveness of the proposed control scheme. (C) 2019 ISA. Published by Elsevier Ltd. All rights reserved.
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