Today’s LiveWire Spotlight examines a draft White Paper developed by NERC’s Synchronized Measurement Subcommittee to help Operating Entities improve their situational awareness capabilities using high resolution data provided by Phasor Measurement Units (PMUs). The document describes two implementation approaches: one which incorporates PMU measurements into an existing unsynchronized state estimation system (hybrid), and a second which uses synchrophasor data exclusively (linear).

The Synchronized Measurement Subcommittee notes in their white paper that hybrid state estimators are growing in number and will continue to do so in the near term. However, linear systems will become more prominent as their tools and platforms mature.