GE has announced that it is providing Southern California Edison (SCE) with a phasor measurement system to acquire, monitor, visualize, analyze, archive and share phasor measurement information. The system acquires measurements of underlying grid conditions from phasor measurement units (PMUs), located within SCE's system, at a rate of 30 times per second, GE says.
The phasor project, also known as a wide-area situational awareness system, involves the deployment of PMU devices in 500 kV and 230 kV substations throughout SCE's network and their integration with associated situational awareness applications at the grid control center, providing real-time decision support to system operators. The solution provides real-time monitoring of power flows, voltage magnitudes and phase angle differences between utility substation busses, as well as frequency and its associated rate of change, the company adds.
The design of the system also accommodates the incorporation of supplemental information from other sources, such as energy management systems and non-electrical system data (e.g., weather, traffic, fire, earthquake), to provide a holistic view of the electrical grid.
Michael Carlson, general manager of software solutions for GE’s Digital Energy business, says the system will enable SCE to complete phase one of the project by exchanging synchrophasor data with the Western Electricity Coordinating Council and its member utilities.
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