Work

Grid-forming Inverter Experimental Testing of Fault Current Contributions

Year: 2019

Type: conference-paper

Abstract: Historically, photovoltaic inverters have been grid-following controlled, but with increasing penetrations of inverter-based generation on the grid, grid-forming inverters (GFMI) are gaining interest. GFMIs can also be used in microgrids that require the ability to interact and operate with the grid (grid-tied), or to operate autonomously (islanded) while supplying their corresponding loads. This approach can substantially improve the response of the grid to severe contingencies such as hurricanes, or to high load demands. During islanded conditions, GFMIs play an important role on dictating the system's voltage and frequency the same way as synchronous generators do in large interconnected systems. For this reason, it is important to understand the behavior of such grid-forming inverters under fault scenarios. This paper focuses on testing different commercially available grid-forming inverters under fault conditions.

Source: Conference record of the IEEE Photovoltaic Specialists Conference

DOI: 10.1109/pvsc40753.2019.8980892

Authors: Nicholas Sonny Gurule, Javier Hernandez-Alvidrez, Matthew J. Reno, Adam Summers, Sigifredo Gonzalez, Jack Flicker

Institution: Sandia National Laboratories

Language: English

Topic: Microgrid Control and Optimization

Subfield: Control and Systems Engineering

Field: Engineering

Domain: Physical Sciences

SDGs: Industry, innovation and infrastructure, Affordable and clean energy

Open Access status: green

Funders: National Nuclear Security Administration, Sandia National Laboratories