pid type title authors mentors source_title published_date url doi isbn issn eissn fer:11782 dissertation "Fast frequency control in low-inertia power systems" "Krpan, Matej" fer:10721 dissertation "Određivanje rezerve snage fotonaponskih elektrana za potrebe regulacije frekvencije elektroenergetskoga sustava" "Baškarad, Tomislav" fer:6658 dissertation "Modelling and evaluation of flexible multi-energy systems for low carbon environment." "Holjevac, Ninoslav"