Interpretation and Quantification of the Flexibility Sources Location on the Flexibility Service in the Distribution Grid

Ajla Mehinovic (), Matej Zajc and Nermin Suljanovic
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Ajla Mehinovic: PE Elektroprivreda B&H, 71000 Sarajevo, Bosnia and Herzegovina
Matej Zajc: Faculty of Electrical Engineering, University of Ljubljana, 1000 Ljubljana, Slovenia
Nermin Suljanovic: Electric Power System Control and Operation Department, Elektroinštitut Milan Vidmar, 1000 Ljubljana, Slovenia

Energies, 2023, vol. 16, issue 2, 1-18

Abstract: The economic and technical requirements of current changes in the distribution system are reflected in the use of all available resources and the activation of mechanisms for local use of flexibility. Local flexibility markets are evolving and face numerous obstacles for which appropriate solutions must be found. The local flexibility market will be complemented by the development of a local flexibility register, which will contain all relevant information about the flexibility assets necessary for the efficient operation of the local flexibility market. In this paper, interpretation and quantification of the flexibility sources location on the flexibility service in the distribution grid is given. The information is derived from power flow simulation results and finally written down in the form of line coefficients, which are determined by applying the least squares method to the power flow results. We have developed a Python-based simulator to perform the methodology to determine the information and test it on a realistic medium voltage distribution grid in Bosnia and Herzegovina. This paper confirms the approximate linearity of the active power changes on the demand side to the line load and to the voltage at the nodes for a given operating condition of the distribution grid.

Keywords: local flexibility market; demand response; distribution grid congestion management; voltage control; location information; flexibility register (search for similar items in EconPapers)
JEL-codes: Q Q0 Q4 Q40 Q41 Q42 Q43 Q47 Q48 Q49 (search for similar items in EconPapers)
Date: 2023
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