Mitigating load-altering attacks against power grids using cyber-resilient economic dispatch
File(s)
Accepted version
Author(s)
Chu, Zhongda
Lakshminarayana, Subhash
Chaudhuri, Balarko
Teng, Fei
Type
Journal Article
Abstract
Large-scale Load-Altering Attacks (LAAs) against Internet-of-Things (IoT) enabled high-wattage electrical appliances pose a serious threat to power system security and stability. This paper investigates, for the first time, the optimal mitigation strategy from a system perspective against such attacks. In particular, a Cyber-Resilient Economic Dispatch (CRED) concept is proposed and seamlessly integrated with attack detection and identification to form a cyber resiliency enhancement framework. Instead of only relying on local resources, CRED coordinates the frequency droop control gains of Inverter-Based Resources (IBRs) in the system to mitigate the destabilizing effect of LAAs while minimizing the overall operational cost. To achieve this, the LAA-inclusive system frequency dynamics is formulated and the corresponding system stability constraints are explicitly derived based on parametric sensitivities, which are further incorporated into the system scheduling model with minimum error through a novel recursive linearization method. In addition, a distributionally robust approach is proposed to account for the uncertainty associated with system dynamics driven by the LAA detection/parameter estimation errors. The overall performance of the proposed CRED model is demonstrated through extensive simulations in a modified IEEE reliability test system.
Date Issued
2023-07
Date Acceptance
2022-12-10
Citation
IEEE Transactions on Smart Grid, 2023, 14 (4), pp.3164-3175
ISSN
1949-3053
Publisher
Institute of Electrical and Electronics Engineers
Start Page
3164
End Page
3175
Journal / Book Title
IEEE Transactions on Smart Grid
Volume
14
Issue
4
Copyright Statement
Copyright © 2022 IEEE. Personal use of this material is permitted. Permission from IEEE must be obtained for all other uses, in any current or future media, including reprinting/republishing this material for advertising or promotional purposes, creating new collective works, for resale or redistribution to servers or lists, or reuse of any copyrighted component of this work in other works.
Identifier
https://www.webofscience.com/api/gateway?GWVersion=2&SrcApp=PARTNER_APP&SrcAuth=LinksAMR&KeyUT=WOS:001017487000052&DestLinkType=FullRecord&DestApp=ALL_WOS&UsrCustomerID=a2bf6146997ec60c407a63945d4e92bb
Subjects
cyber-resilience
Economic dispatch
Engineering
Engineering, Electrical & Electronic
load altering attacks
PROTECTION
Science & Technology
sensitivity analysis
SYSTEM
system stability
Technology
Publication Status
Published
Date Publish Online
2022-12-22