The decarbonization of energy systems is accelerating the green transition of electric power grids towards 100% renewables. A radical change with this green transition is the massive use of power electronic converters in the power generation, transmission and consumption. The lack of rotational inertia in solid-state power converters dramatically reduces the kinetic energy stored in the grid. Consequently, the frequency of power grids will not be governed by the electromechanical laws of electrical machines, but be more dependent on the digital control of power converters.
This paradigm shift requires rethinking how to maintain the frequency security of low-inertia electronic power grids. This project will address this fundamental challenge through an interdisciplinary effort - advances in nonlinear systems theory, data sciences, power electronics and power systems will be explored. New tools and methods will be developed for analysis and control of frequency dynamics in future 100% renewable power grids.
- We are very excited with the grant and look very much forward to be able to find out theories and tools for redefining the paradigm of frequency control in fully-renewable power grids, says Professor Xiongfei Wang.