NDLI: Robust protection scheme against cyber-physical attacks in power systems

Content Provider	IET Digital Library
Author	Giorgio, Alessandro Di Pietrabissa, Antonio Priscoli, Francesco Delli Isidori, Alberto
Abstract	This study presents a robust defence strategy in reaction to destabilising cyber-physical attacks launched against linear time invariant systems and its application to power systems. The proposed protection scheme aims at making the dynamics of a selected subsystem decoupled from the dynamics of the subsystem targeted by the attack. The standard decoupling methods are made robust, in spite of poor information about plant parameters and lack of state measurement, with the aid of an extended observer. In this way, it is possible to keep the protected dynamics arbitrarily close to the one of a suitably chosen stable system, so long as the dynamics being targeted by the attack remain within the prescribed bounds. The proposed defence strategy is presented in the context of modern power systems, wherein generators and transmission networks are operated by different players and shown to be effective using the Western System Coordinating Council 9-bus test power network.
Starting Page	1792
Ending Page	1801
Page Count	10
ISSN	17518644
Volume Number	12
e-ISSN	17518652
Issue Number	Issue 13, Sep (2018)
Alternate Webpage(s)	https://digital-library.theiet.org/content/journals/iet-cta/12/13
Alternate Webpage(s)	https://digital-library.theiet.org/content/journals/10.1049/iet-cta.2017.0725
Journal	IET Control Theory & Applications
Publisher Date	2018-04-12
Access Restriction	Open
Rights Holder	© The Institution of Engineering and Technology
Subject Keyword	Cyber-physical Attack Data Security Evolutionary Computation Fault Location Linear System Linear Time Invariant System Load Dispatching Load Flow Modern Power System Optimisation Technique Power System Control Power System Economics Power System Managemen Power System Measurement Power System Operation Power System Security Power Transmission Line Protected Dynamics Robust Defence Strategy Robust Protection Scheme Selected Subsystem Stable System Standard Decoupling Method Telecommunication Security Western System Coordinating Council 9-bus Test Power Network
Content Type	Text
Resource Type	Article
Subject	Control and Optimization Control and Systems Engineering Human-Computer Interaction Electrical and Electronic Engineering Computer Science Applications

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