Power electronics is a key technology that enables the revolution of electric power generation, transmission, and distribution in modern power systems for improved energy security, efficiency, and sustainability. In distribution systems, power electronic converters not only serve as the critical interfaces between the utility grid and distributed energy resources such as solar, wind, and energy storage, but also play a pivotal role in power quality control and management. In transmission systems, high voltage high power electronic converters are the ideal candidate for achieving flexible and efficient power flow in bulk interconnected power systems. On one hand, it is no doubt that more electronic apparatus will be integrated into future power systems to further reduce carbon emissions. On the other hand, power electronic converters exhibit significantly different characteristics with traditional power system components and may bring a number of challenging stability issues from both converter-level and system-level perspectives. The knowledge and theories for understanding and analysis of more electronics power systems are still lacking and deserve in-depth studies
