IEEE Standard for Synchrophasors for Power Systems

TLDR

IEEE Standard 1344, completed in 1995, establishes synchrophasor guidelines and stresses that accurate timetagging is essential for wide‑area phase comparison. It defines parameters for consistent phasor measurement and communication, specifies timing signal and time‑code requirements (GPS with IRIG‑B), mandates correlation of unsynchronized and synchronized phasors, and prescribes data exchange, control message formats, and annexes covering core concepts.

Abstract

IEEE Standard 1344, Synchrophasors for Power Systems, was completed in 1995. It sets parameters required to ensure that phasor measurement will be made and communicated in a consistent manner. It specifies requirements for the timing signal used for phasor synchronization and the time code needed for input to a measurement unit. GPS is the recommended time source and IRIG-B is the basic format used for time communication. The standard requires correlating phasors computed from unsynchronized and synchronized sampling to a common basis. Timetagging accurately and consistently is essential for wide area comparison of phase. The standard specifies information exchange and control message formats. These include data output, configuration, and command messages. It includes 7 annexes that discuss the concepts covered in the body of the standard.