204 research outputs found
Distributed multi-generation systems: energy models and analyses
Libro riguardante la caratterizzazione di sistemi per la produzione combinata di energia da sistemi di multi-generazione distribuita (Distributed Multi-Generation, DMG). Il libro tratta componenti, schemi e modelli di sistemi di multi-generazione distribuita, illustra concetti derivanti da proposte originali degli autori in merito all'analisi e alla pianificazione dei sistemi, con i corrispondenti indicatori energetici e ambientali approccio formulati secondo un approccio unificato. Numerosi esempi applicativi inclusi nel libro riguardano in particolare sistemi di cogenerazione e trigenerazion
On Feasibility and Flexibility Operating Regions of Virtual Power Plants and TSO/DSO interfaces
Distributed energy resources are an ideal candidate for the provision of
additional flexibility required by power system to support the increasing
penetration of renewable energy sources. The integrating large number of
resources in the existing market structure, particularly in the light of
providing flexibility services, is envisioned through the concept of virtual
power plant (VPP). To this end, it is crucial to establish a clear methodology
for VPP flexibility modelling. In this context, this paper first puts forward
the need to clarify the difference between feasibility and flexibility
potential of a VPP, and then propose a methodology for the evaluation of
relevant operating regions. Similar concepts can also be used to modelling
TSO/DSO interface operation. Several case studies are designed to reflect the
distinct information conveyed by feasibility and flexibility operating regions
in the presence of "slow" and "fast" responding resources for a VPP partaking
in provision of energy and grid support services. The results also highlight
the impact of flexible load and importantly network topology on the VPP
feasibility (FOR) and flexibility (FXOR) operating regions
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