Frequency regulation for dynamic islanding operations in multi-fuel microgrids

Islanding operations are expected to become a relevant instrument for system operators in order to guarantee a secure and stable functioning of distribution networks with high penetration of non-programmable renewables. The present paper analyzes the dynamics of frequency variation within a microgrid hosting both natural gas and diesel engines during islanding operations following a fault event on the main network. The results compare real-life and simulated data, thus validating the elaborated network model. Furthermore, in a future perspective, the study allows the inclusion of non-programmable resources and subsequently assesses the capability for public network re-energization by islanded microgrids.