Impact of High Penetration of Inverter-based Generation on System Inertia of networks

The objective of JWG C2/C4.41 is to advise and formulate philosophies for system operations in order to prepare the on-going energy transition. Existing Primary Frequency Response studies were reviewed in order to analyse and mitigate against the impact of the reduction of synchronous inertial energy on power systems as a result of integration of non-synchronous renewable generation. Various networks around the globe were used as case studies. A survey was carried out that looked at ways different system operators around the Globe dealt with the problem of reduction of system inertia and its impact on their networks. The integration of the existing knowledge between system operation and system performance, as well as the interaction with system planning, was seen as crucial to achieve the desired goals.