Sensitivity factors in electricity-heating integrated energy systems

Jonte Dancker, Christian Klabunde and Martin Wolter

Energy, 2021, vol. 229, issue C

Abstract: In integrated energy systems, adjusting the energy conversion of a coupling unit changes the power flow in the connected energy systems. Also, it forces other units to adapt their generation to keep the energy balance in the energy systems. The impact on the power flow and the complexity of the interaction between single networks will increase the more coupling units are installed. The impact on the power flow can be determined by power flow calculation and optimization algorithms. However, to analyze the impact of a unit’s power change on all state variables, the available methods need to solve a second power flow or optimization. This is computationally effortful and time-consuming. Hence, this paper proposes a method that estimates such a change easily and quickly. The method extends the widely used approach of sensitivity factors in electric power system analysis to electricity-heating integrated energy systems. The sensitivity factors are derived in a straightforward way by linearization using the Jacobian matrix of a coupled power flow calculation before the change. These new sensitivity factors can precisely estimate the impact of a change on the energy system’s power flow and reduce the calculation time of new setpoints by factor eight on average.

Keywords: Integrated energy system; Microgrids; Newton method; Numerical simulation; Power system; Sensitivity factors (search for similar items in EconPapers)
Date: 2021
References: View references in EconPapers View complete reference list from CitEc
Citations: View citations in EconPapers (5)

Downloads: (external link)
http://www.sciencedirect.com/science/article/pii/S0360544221008495
Full text for ScienceDirect subscribers only

Related works:
This item may be available elsewhere in EconPapers: Search for items with the same title.

Export reference: BibTeX RIS (EndNote, ProCite, RefMan) HTML/Text

Persistent link: https://EconPapers.repec.org/RePEc:eee:energy:v:229:y:2021:i:c:s0360544221008495

DOI: 10.1016/j.energy.2021.120600

Access Statistics for this article

Energy is currently edited by Henrik Lund and Mark J. Kaiser

More articles in Energy from Elsevier
Bibliographic data for series maintained by Catherine Liu ().