A Testbed to Study Interactions of PV Installations with Distribution Systems
Srdjan Miodrag Lukic
David Lee Lubkeman
Project runs from 08/16/2018 to 08/15/2019
The objective of this project is to construct a testbed and analysis framework for investigating how large PV penetration on a feeder affects the operation of the distribution system. In recent years, as the number of solar installations has increased, utilities have experienced unexpected power system behavior near the solar installations. These issues result from interactions between PV inverters and/or between the PV inverters and utility equipment such as transformers, breakers and capacitor banks. Since the inverters that interface the solar panels to the grid operate at switching frequencies in the kHz range, the available data recordings may not provide the fidelity required to find the root cause of the problem. Further, the placement of data acquisition equipment may not supply the required information for a complete understanding of the root cause of a problem.