IEC TR 61850-90-5:2012

Overview

IEC TR 61850-90-5:2012 provides guidance for using the IEC 61850 framework to transport synchrophasor information defined by IEEE C37.118. It maps phasor measurement unit (PMU) and phasor data concentrator (PDC) data flows into IEC 61850 concepts, and introduces routable profiles for IEC 61850-8-1 GOOSE and IEC 61850-9-2 Sampled Values (SV) so synchrophasor data and other IEC 61850 data can be exchanged over modern, routable communication networks for power utility automation.

Keywords: IEC TR 61850-90-5, IEC 61850, IEEE C37.118, synchrophasor, communication network, power utility, PMU, PDC, WAMPAC.

Key Topics and Technical Requirements

• Use cases: Wide area monitoring, protection and control (WAMPAC), synchro-check, adaptive relaying, out-of-step protection, situational awareness, state estimation, archiving, and wide-area controls.
• Modelling: PMU and PDC object models, system hierarchy and logical node modelling for synchrophasor measurements.
• Communication requirements: Profiles for routable GOOSE and R-SV, direct and gateway approaches, TCP considerations, redundancy and reliability.
• Security: End-to-end integrity, key management, Key Distribution Center (KDC) profiles and edge authentication guidance.
• Services and mappings: Command, configuration and data transmission services, coding of synchrophasor payloads, header information.
• SCL and standards effects: Extensions and configuration language (SCL) impact on IEC 61850-6, impacts on IEC 61850-5, -7 and -4, and examples for migrating IEEE C37.118 systems.
• Profiles and transport: A-Profiles, T-Profiles, KDC profile, IGMPv3 support, IPv6 considerations and examples.

Practical Applications and Who Uses This Standard

IEC TR 61850-90-5 is aimed at professionals integrating synchrophasor systems within IEC 61850-based utility networks:

• Utility system engineers and control center architects implementing WAMPAC or wide-area monitoring.
• PMU and PDC vendors designing devices to interoperate with IEC 61850 services.
• Protection and relaying engineers using synchrophasors for adaptive relays, out-of-step schemes and special protection systems.
• System integrators and cybersecurity specialists designing secure, routable phasor networks.
• Standards and testing organizations migrating IEEE C37.118 implementations to IEC 61850 profiles.

Related Standards

• IEC 61850 series (including -7, -5, -6, -8-1, -9-2)
• IEEE C37.118-2005 (synchrophasor data definitions)
• Supporting protocols and profiles (IPv6, IGMPv3, TCP/UDP)

IEC TR 61850-90-5 bridges legacy phasor standards and IEC 61850-based utility automation, enabling routable, secure transport of synchrophasor data across modern communication networks for power utility operations.