Smart control of interconnected district heating networks on the example of “100% Renewable District Heating Leibnitz”
Die ThermaFLEX-Gruppe hat einen Artikel für ScienceDirect über den Demonstrator von Leibnitz („100% Renewable District Heating Leibnitz“) verfasst und veröffentlicht. Die Autoren von AEE INTEC (Jakob Binder, Joachim Kelz und Ingo Leusbrock) haben mit den Partnern BEST GmbH und Schneid GmbHto zusammengearbeitet, um diesen Artikel zu schreiben.
ThermaFLEX ist ein Projekt, das sich auf die Erhöhung der Flexibilität und die Reduzierung der CO2-Emissionen im Fernwärmesektor konzentriert. Zur Realisierung des Projekts wurden 11 Demonstratoren mit jeweils unterschiedlichen Schwerpunkten realisiert. In dem Artikel, der diesen Monat in ScienceDirect veröffentlicht wurde, wird der Demonstrator in der Stadt Leibnitz, genannt „100% Renewable DH Leibnitz“, besprochen. Um den vollständigen Artikel zu lesen, klicken Sie hier.
Abstract:
District heating (DH) networks have the potential for intelligent integration and combination of renewable energy sources, waste heat, thermal energy storage, heat consumers, and coupling with other sectors. As cities and municipalities grow, so do the corresponding networks. This growth of district heating networks introduces the possibility of interconnecting them with neighbouring networks. Interconnecting formerly separated DH networks can result in many advantages concerning flexibility, overall efficiency, the share of renewable sources, and security of supply. Apart from the problem of hydraulically connecting the networks, the main challenge of interconnected DH systems is the coordination of multiple feed-in points. It can be faced with control concepts for the overall DH system which define optimal operation strategies. This paper presents two control approaches for interconnected DH networks that optimize the supply as well as the demand side to reduce CO2 emissions. On the supply side, an optimization-based energy management system defines operation strategies based on demand forecasts. On the demand side, the operation of consumer substations is influenced in favour of the supply using demand side management. The proposed approaches were tested both in simulation and in a real implementation on the DH network of Leibnitz, Austria. First results show a promising reduction of CO2 emissions by 35% and a fuel cost reduction of 7% due to better utilization of the production capacities of the overall DH system.
(Quelle: Kaisermayer, V., Binder, J., Muschick, D., Beck, G., Rosegger, W., Horn, M., Gölles, M., Kelz, J., & Leusbrock, I. (2022). Smart control of interconnected district heating networks on the example of “100% Renewable District Heating Leibnitz”. Smart Energy, 6, 100069. https://doi.org/10.1016/j.segy.2022.100069)