"Controller Design for Grid Forming Inverter-Based Power Generating Sys" by Md Minarul Islam, K. M. Muttaqi et al.
While hitherto the synchronous grid is dominated by the synchronous generators (SGs), recently the grid-following inverter-based power generation systems (IBPGS) are increasingly being connected to the power grid, resulting in a slowly decreasing system total inertia impacting the operation of the power systems, in areas such as potential failures in the operation of phase-locked loops (PLLs), increased rate of change of frequency, contingency frequency control required during islanding conditions and problems associated with the system restoration capability. Therefore, there is an urgent nee...
Source: uow.edu.au