Keynote Speech: Grid Integration of Inverter-Based Resources: Dynamic Interactions and Control

Abstract: In recent years, there has been a considerable surge in the deployment of inverter-based resources in power systems, particularly renewable energy resources and high-voltage direct-current transmission systems. Inverter-based resources are significantly different from synchronous generators in respect to their physical characteristics and control dynamics. The differences are transforming the operation and control of power grids, posing new challenges to the stability and power quality of electricity supply. This lecture will give first an overview of instability issues caused by dynamic interactions of inverter-based resources, and then discuss dynamics analysis and control methods for addressing the problems. The emerging trends and challenges with system integration of inverter-based resources will also be covered.