Modeling and simulation tools that were useful for conventional mechanical equipment must evolve to meet the needs of a modern electric grid that is permeated with power electronics such as inverters. These fast-acting devices are affected differently by faults in distant parts of the grid. In order to plan expansions, interconnections and operations to ensure an uninterrupted power supply, utilities and power system operators need a better understanding of how recent changes in grid architecture will change grid behavior.
Electromagnetic transient (EMT) domain analysis has demonstrated greater accuracy in its ability to replicate and understand faults in systems with increasing numbers of the inverters required for solar and wind generation systems, energy storage, and electric vehicle chargers. Collaboration among researchers, regulators and the power industry is crucial to develop best practices using EMT modeling, combined with other methods and tools, to keep electricity flowing smoothly to customers in a green energy landscape.