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Analysis of the Influence of Photovoltaic Production on Grid Voltage using Data from Inverters

Authors:
Isabel Santiago Chiquero
Victoria Arenas Ramos
Víctor Pallarés López
Miguel González Redondo
Rafael Jesús Real Calvo
Olivia Florencias Oliveros
Gonzalez de la Rosa Juan José

Keywords: Photovoltaic plants; grid voltage fluctuation; inverters

Abstract:
Renewable energy sources are playing an increasingly important role in the move towards decarbonization and the reduction of polluting gases. Specifically, photovoltaic solar energy is the technology whose installed capacity has experienced the greatest growth in recent years, already exceeding 2.2 TW worldwide. This type of clean energy generation has other drawbacks. Its dependence on atmospheric conditions not only affects its availability, but its fluctuating nature, which can change rapidly with the passage of clouds, can affect the stability of the grid and make it difficult to manage. Specifically, this inherent variability influences on grid voltage values, among other factors, potentially leading to fluctuations as a result of changes in photovoltaic output power. This paper presents an analysis of the grid voltage values recorded by an inverter located in a solar park over a period of almost five years with a frequency of 5 minutes. The effect of photovoltaic generation on the increase in voltage values during the middle of the day, when output power is at its highest is clearly observed, as well as an increase in the fluctuations experienced by this parameter at the point where photovoltaic output power is injected into the grid.

Pages: 45 to 48

Copyright: Copyright (c) IARIA, 2026

Publication date: March 8, 2026

Published in: conference

ISSN: 2308-412X

ISBN: 978-1-68558-357-6

Location: Valencia, Spain

Dates: from March 8, 2026 to March 12, 2026