A graph-based framework for steady-state load flow analysis of multi-carrier

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Abstract

Energy systems are becoming more complex due to increased coupling between different networks, resulting in multi-carrier energy networks. Conventional models for the separate networks are not able to capture the full extent of the coupling. Recently, different models for multi-carrier networks have been proposed, either using the energy hub concept or using a case specific approach. Although the energy hub concept can be applied to a general integrated net- work, it is unclear how the energy hub should be represented in the graph of the multi-carrier network. This paper presents a graph-based framework for steady-state load ow models of multi-carrier energy systems. Furthermore, the effect of coupling on the integrated system of equations is investigated. The proposed framework is tested on two small multi-carrier net- works, for comparison with models in literature. Results show that our framework is applicable to a general system, and that it generalizes both the energy hub concept and the case specific approaches.   

Original languageEnglish
Place of PublicationDelft
PublisherDelft University of Technology
Number of pages36
Publication statusPublished - 2019

Publication series

NameReports of the Delft Institute of Applied Mathematics
Volume19-01
ISSN (Print)1389-6520

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