Realtime Thévenin Equivalent Impedance at a PCC in the Italian Power Grid

The increase of Distributed Energy Resources (DER) in distribution networks has underlined the need for new strategies to optimally operate DERs by increasing efficiency in generation and distribution of power. Optimal Power Injection enabled by Thévenin equivalent impedance (TEI) measurements is on...

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Bibliographic Details
Published in2020 International SAUPEC/RobMech/PRASA Conference pp. 1 - 6
Main Authors Gabriels, G.H., Oyedokun, D.T.O., Ruggeri, S.
Format Conference Proceeding
LanguageEnglish
Published IEEE 01.01.2020
Subjects
Active impedance detection method
Couplings
Current measurement
Impedance measurement
multiple measurements
Phase measurement
Power measurement
Power supplies
Thévenin equivalent impedance
Wires
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Summary:The increase of Distributed Energy Resources (DER) in distribution networks has underlined the need for new strategies to optimally operate DERs by increasing efficiency in generation and distribution of power. Optimal Power Injection enabled by Thévenin equivalent impedance (TEI) measurements is one of such possible strategies, since this permits the evaluation of the optimal currents that need to be injected into or drawn from a network, in order to reduce energy losses. The first measurement campaign was performed in a three phase four wire point of common coupling (PCC) in Cape Town, South Africa, in which the possibility of multiple simultaneous measurement of the TEI of a power supply grid via two points of common coupling was analyzed. In this paper, the results of a measurement campaign to determine the dynamics TEI at a PCC in Italy is discussed. The results show that there is a significant level of imbalance in the TEI across the phases at the PCC.
DOI:10.1109/SAUPEC/RobMech/PRASA48453.2020.9040924