The new Technical Report IEC TR 61850-90-5: “Use of IEC 61850 to transmit synchrophasor information according to IEEE C37.118” is on its way for official publication.
Synchrophasor information are measured and calculated by PMUs (Phasor Measurement Units) are used to assess the condition of the electrical power delivery system. The synchrophasors and related message formats transmit synchrophasor information over long distances. The payload is defined in IEEE C37.118.
IEC 61850-90-5 will provide a way of exchanging synchrophasor information between PMUs and WAMPAC (Wide Area Monitoring, Protection, and Control), and for and between control center applications.
IEC 61850-90-5 also provides communication profile extensions to allow to route GOOSE and sampled value messages (IEC 61850-8-1 and IEC 61850-9-2) using UDP/IP. These routable messages can be utilized to transport any IEC 61850 information as well as synchrophasor information.
Applications comprise:
- Synchro-check
- Adaptive relaying
- Out-of-step (OOS) protection
- Situational awareness
- State Estimation and on-line security assessment
- Archive data (event & continuous)
- Special Protection Schemes
- Predictive Dynamic Stability Maintaining System
- Under Voltage Load Shedding
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