RT Journal Article
A1 Qinglai Guo
A1 Shujun Xin
A1 Luo Xu
A1 Hongbin Sun

PB iet
T1 EMS communication routings’ optimisation to enhance power system security considering cyber-physical interdependence
JN IET Cyber-Physical Systems: Theory & Applications
VO 3
IS 1
SP 44
OP 53
AB Energy management system (EMS) is one of the most essential categories of the advanced applications in current cyber-physical power systems. However, because of the tight coupling relationship between a power network and EMS's communication network, a physical break-line fault may be accompanied by a communication line outage, which may result in regional unobservability and uncontrollability. To maximally avoid and eliminate such operation risks, referring to current EMS's ‘active + standby’ communication configuration scheme in China, the authors propose a dynamic routing optimisation mechanism for its standby communication routings, assigning the most reliable communication lines to the most important information. Such optimisation considers two factors: information's significance and the reliability of communication lines. By introducing cyber-physical sensitivity index and path-branch incidence matrix, both factors can be expressed numerically. In the case study, the authors optimise the standby communication routings for a power flow corrective control application under different scenarios. The results verify the effectiveness and superiority of their approach.
K1 cyber-physical interdependence
K1 energy management system
K1 physical break-line fault
K1 path-branch incidence matrix
K1 EMS communication routing optimisation
K1 cyber-physical sensitivity index
K1 power network
K1 communication line outage
K1 power system security enhancement
K1 dynamic routing optimisation mechanism
DO https://doi.org/10.1049/iet-cps.2017.0074
UL https://digital-library.theiet.org/;jsessionid=43lbts63l46ja.x-iet-live-01content/journals/10.1049/iet-cps.2017.0074
LA English
SN
YR 2018
OL EN