Grid-forming Inverters, Virtual Synchronous Machines, and Power Electronics-enabled Autonomous Power Systems


Qing-Chang Zhong


Power systems are going through a paradigm change. Future power systems will be power-electronics-based. These power electronic converters can be controlled as grid-forming inverters, more specifically, as virtual synchronous machines. This leads to synchronized and democratized (SYNDEM) smart grids. This tutorial will cover the underlying principles of the SYNDEM grid architecture, associated control problems, virtual synchronous machines technologies, field demonstration results, and future research directions. Moreover, the SYNDEM Smart Grid Research and Educational Kit, which is an open-source reconfigurable power electronic converter with the capability of directly downloading codes from Matlab/Simulink, will be presented as well.