Integration of Distributed Energy Resources in Power Systems

Chapter 12

Virtual synchronous generators and their applications in microgrids

Toshifumi Ise^*

Hassan Bevrani^***    Graduate School of Engineering, Osaka University, Suita, Osaka, Japan^**    Department of Electrical & Computer Engineering, University of Kurdistan, Kurdistan, Sanandaj, Iran

Abstract

The growing distributed generating units and renewable energy sources (DGs/RESs) have either very small or no rotating mass (which is the main source of inertia) and damping property and therefore, the grid dynamic performance and stability will be affected by insufficient inertia and damping of DGs/RESs. The most challenging issue with the inverter-based units is to synchronize the inverter with the grid and then to keep it in step with the grid even ...