Verification of multi-energy system components for renewable integration

Proprietary software is used by utility companies throughout Europe to predict the district energy network parameters. TERMIS, NEPLAN and NetSim, widely used in Denmark, are limited to static or quasi-static models of electrical, thermal and hydraulic phenomena. Integration of new technology in a multi-energy network requires fully dynamic modeling to accurately estimate physical parameters and run model predictions. In the present study, a dynamic modeling software for district multi-energy systems is presented and dynamic modelling framework Dymola is compared to the quasi-static software TERMIS. District heating system components are developed in Dymola, verified in TERMIS and applied to the case where the pump consumption is partially covered by the wind-generated power. The proposed modeling approach brings possibilities for (a) dynamic analysis of the integration of renewable technologies into the future district heating network and (b) comparison of existing and innovative multi-energy systems considering their real-time status and performance.