Engineering

Automation

Embedded system

Standardization

Computer security

Nexus (standard)

Smart grid

Operating system

Computer science

Computer network

Mechanical engineering

IEC 61850

Electrical engineering

IEEE Transactions on Industrial Informatics

Smart grid is the nexus of advanced Information and Communication Technologies (ICT) and legacy power systems.With increasing awareness on vulnerabilities of smart grids to cyber-attacks, cybersecurity is becoming a prime concern.Earlier, it was assumed that power system communication protocols are very specialized and different, so the "security by obscurity" approach would be sufficient.However, with the standardization of communication protocols for power utilities and emergence of power market, this approach is no longer valid.IEC 62351 standard has been published to provide security recommendations for different power system communication protocols including IEC 61850.IEC 61850 is emerging as the most promising and popular power system communication standard.Therefore, in this paper, a detail analysis of security threats, possible attacks and security requirements for IEC 61850 communication is presented.Building on this, the security considerations presented in IEC 62351 for securing different IEC 61850 messages such as Generic Object-Oriented Substation Events (GOOSE), Sampled Values (SV), Routable-GOOSE (R-GOOSE), Routable-SV (R-SV) and Manufacturing Message Specification (MMS) messages have been presented in great detail.

A Review of IEC 62351 Security Mechanisms for IEC 61850 Message Exchanges