CIEE and partners Power Standards Lab and Lawrence Berkeley National Lab developed a new instrument called a micro-phasor measurement unit (μPMU) to make ultra-precise, time-synchronized measurements in electric power distribution systems. These synchrophasor data provide unique information about power flows and stability of the grid, by revealing magnitudes and phase angles (i.e, subtle time shifts between the measurements at different locations) of voltage and current. The project also created a powerful and extremely fast new tool called the Berkeley Tree Database (BTrDB), to enable users to actually consume and analyze rich data streams like those from μPMUs, which report measurements 120 times per second.
ARPA-E Micro-Synchrophasors for Distribution SystemsRead More »