Voltage Fluctuations and Flicker in Prosumer PV Installation

Krzysztof Łowczowski and Zbigniew Nadolny
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Krzysztof Łowczowski: Institute of Electrical Power Engineering, Poznan University of Technology, Piotrowo 3a, 60-965 Poznań, Poland
Zbigniew Nadolny: Institute of Electrical Power Engineering, Poznan University of Technology, Piotrowo 3a, 60-965 Poznań, Poland

Energies, 2022, vol. 15, issue 6, 1-18

Abstract: In this paper, we present problems connected with voltage fluctuations in low-voltage networks caused by small PV sources installed in an LV network. For the purpose of analysis, high-resolution data gathered at the output of real PV sources for 4 months in 2 locations are used. Data are processed to analyze the impact of different network parameters on voltage fluctuations and voltage flicker. The resulting values of flicker and fluctuations are given so the assessment of the impact of PV sources can be made before the connection of new sources to the power grid. Moreover, the methodology of analysis is presented in detail so the impact of similar PV sources on voltage could be analyzed. Finally, general conclusions connected with measurement, analysis, and mitigation are given.

Keywords: flicker; fluctuations; power quality; photovoltaic (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: 2022
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