Data Attack Isolation in Power Networks Using Secure Voltage Magnitude Measurements
Artikel i vetenskaplig tidskrift, 2014

In this paper a procedure to detect and isolate data attacks on power network power flow measurements is proposed. This method can be used in conjunction with available bad data detection (BDD) methods to isolate multiple bad data which are otherwise difficult to handle. The proposed procedure relies on secure measurements of bus voltage magnitudes to define a measurement residual using potentially compromised active and reactive power flow measurements on transmission lines. The proposed residual can be calculated in real-time. In addition, the component of the proposed residual on any particular line depends only locally on the component of the data attack on the same line. This makes the proposed residual well-suited for distributed data attack isolation in large-scale power networks. Furthermore, it can be shown that the proposed procedure becomes more effective when measurements from multiple time instances can be utilized. A detailed numerical case study on the IEEE 14-bus benchmark system demonstrates the effectiveness of the proposed procedure.

wide-area protection

power network state estimation

security

Fault location

Författare

Kin Cheong Sou

Kungliga Tekniska Högskolan (KTH)

Chalmers

Henrik Sandberg

Kungliga Tekniska Högskolan (KTH)

Karl Henrik Johansson

Kungliga Tekniska Högskolan (KTH)

IEEE Transactions on Smart Grid

1949-3053 (ISSN)

Vol. 5 1 14-28

Styrkeområden

Informations- och kommunikationsteknik

Energi

Drivkrafter

Hållbar utveckling

Ämneskategorier

Reglerteknik

DOI

10.1109/TSG.2013.2280658

Mer information

Senast uppdaterat

2018-09-10