Interpreting and implementing IEC 61850-90-5 Routed-Sampled Value and Routed-GOOSE protocols for IEEE C37.118.2 compliant wide-area synchrophasor data transfer

Abstract

Flexibility and adaptability requirements of future electric power grids for integrating DERs call for the development of Wide-Area Monitoring, Protection And Control (WAMPAC) applications, utilizing synchrophasor measurements provided by the Phasor Measurement Units (PMUs).IEEE C37.118 is the most utilized protocol for real-time exchange of synchronized phasor measurement data. In order to fulfil some gaps not addressed in IEEE C37.118, and also to harmonize with the IEC 61850 power utility automation standard, the IEC 61850-90-5 technical report has been developed. IEC TR 61850-90-5 introduces a mechanism for transfer of digital states and time synchronized phasor measurement data over wide-area networks between Phasor Measurement Units (PMUs), Phasor Data Concentrators (PDCs) and WAMPAC applications in the context of IEC 61850.This work interprets the IEEE C37.118.2 and IEC 61850-90-5 Routed-Sampled Value and Routed-GOOSE protocols and describes the design and implementation of a library named Khorjin with the functionality of (1) an IEEE C37.118.2 to IEC 61850-90-5 gateway and protocol converter and, (2) an IEC 61850-90-5 subscriber and traffic parser.The main contribution of this work is the development of Khorjin library using only standard C libraries (i.e. independent from any operating system). This is allowing the use of the library in different platforms.The design requirements and functionality of the Khorjin library has been tested in the KTH SmarTS Lab Real-Time Hardware-in-the-Loop (HIL) simulation environment to assess its conformance to the functional requirements of IEEE C37.118.2 and IEC 61850-90-5 standards.

Inter-Technology Bridging Gateway: A Low Cost Legacy Adaptation Approach to Secure Industrial Systems

“…In contrast to previous works [10], [11], ITBG equips legacy devices and applications with modern and secure technologies. It is a significant refinement over [14] by enabling twoway protocols/standards translation and supporting security features. Moreover, ITBG has modular architectural design that makes it easily customizable for any industrial application.…”

“…To address integration issues, manufacturers must strictly follow relevant standards [2]. Firouzi et al [14] presented a gateway that translates packets from IEEE C37.118.2 standard into IEC 61850-90-5 standard. However, one-way translation enables IEEE C37.118.2 compliant devices to be used in IEC 61850-90-5 compliant system but not vice versa.…”

“…Instead, ITBG eliminates technological gap between legacy and new systems which were manufactured using different communication standards. The ITBG is a major step beyond the most relevant previous work [14] as it: (i) supports two-way protocols/standards translation feature, (ii) embeds security features for protection against cyber attacks, (iii) can work with multiple phasor Figure 1. The modernization of an industry.…”

Demonstrating Cyber-Physical Attacks and Defense for Synchrophasor Technology in Smart Grid

“…To protect synchrophasor communication, authors in [17], [18] proposed the concept of security gateway. Security gateway is a low cost device (e.g, Raspberry Pi) that encrypts the PMU communication before passing it through insecure network.…”

Synchrophasor applications facilitating interactions in transmission and distribution operations

“…Moreover, additional gateways have been developed in this work to transmit the PDC data stream on IEC 61850-90-5 protocol [10,11]. In this protocol, PMU data transfer is done by mapping and encapsulating the PMU data (according to IEEE C37.118.2) in GOOSE/Sampled Value messages and sending them over UDP/IP.…”