PV Generation Monitoring Using Calculated Power Flow from μPMUS

Abstract

The ability of PMUs to provide precise, synchronized readings of voltage, current and frequency has made them valuable for the observation of microgrids. In some microgrids, PMU s are utilized without a current transformer and only measure voltage phasor values. This research outlines a procedure to use μPMU (or micro-PMU) voltage readings to ascertain electric loads or photovoltaic (PV) production through gauging power flow (PF). The results of a study conducted at the Federal University of Paraná's Polytechnic School (UFPR) in Brazil demonstrated that utilizing the power flow calculated by a “virtual CT” approach, as measured by a standard power meter and with a higher time resolution from a microPMU, is a reliable and efficient method for recognizing events, monitoring PV generation, and non-intrusively monitoring load (NILM).