Grid Integration Laboratory (GIL) at the Indian Institute of Technology, Bombay, has developed a tool for estimating non-synchronous inertia in renewable energy (RE)-integrated power systems.
Accurate estimation of non-synchronous inertia in RE-integrated power systems is challenging through conventional approaches, as emulated inertia from inverter-based resources (IBRs) is fundamentally different from the inherent inertial response of synchronous generators. The developed tool provides a highly accurate estimate of non-synchronous inertia with a minimum number of frequency and voltage monitoring nodes in a given grid.
The tool can help the grid operators determine inertial contributions from the demand side and IBRs depending on operating conditions and the availability of virtual inertia from RE sources, estimate the minimum required synchronous inertia, and select the appropriate configuration of virtual inertial controllers. GIL recently published an article in ‘IEEE Transactions on Sustainable Energy’, discussing some related developments.
The article can be accessed from the link below: