Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
4957481 | Pervasive and Mobile Computing | 2017 | 21 Pages |
Abstract
It is well-known that critical infrastructures would be targets for cyber attacks. In this paper, we focus on the power systems (i.e. smart grids) in ubiquitous cities, where every meter is linked to an information network through wireless networking. In a smart grid system, information from smart meters would be used to perform a state estimation in real time to maintain the stability of the system. A wrong estimation may lead to disastrous consequences (e.g. suspension of electricity supply or a big financial loss). Unfortunately, quite a number of recent results showed that attacks on this estimation process are feasible by manipulating readings of only a few meters. In this paper, we focus on nonlinear state estimation which is a more realistic model and widely employed in a real power grid environment. We category cyber attacks against nonlinear state estimation, and review the mechanisms behind. State-of-the-art security measures to detect these attacks are discussed via sensor protection. Hope that the community would be able to come up with a secure system architecture for ubiquitous cities.
Related Topics
Physical Sciences and Engineering
Computer Science
Computer Networks and Communications
Authors
Jingxuan Wang, Lucas C.K. Hui, S.M. Yiu, Eric Ke Wang, Junbin Fang,