Voltage Sag Mitigation Methods in Low Voltage Networks with Photovoltaic Units: Modelling and Analysis

Mohannad Jabbar Mnati, Ihsan Jabbar Hasan, Iman Subhi Mahmood, Qais Mohammed Aish, Aqeel A. Al-Hilali

Abstract


Photovoltaic and battery energy are causing conventional designs of power systems to undergo significant transformations, which is creating new challenges for the systems' dependability as their utilization rates increase. Voltage sags are temporary decreases in voltage levels that can adversely affect the performance of electrical devices and disrupt power quality. With the increasing integration of PV and battery units into low-voltage networks, voltage sags have become a significant concern due to the intermittent nature of solar energy. This paper aims to study voltage sag issues in low-voltage networks with PV units by investigating various mitigation methods and analysing their effectiveness. The research begins with the development of a comprehensive model that captures the dynamic behavior of PV and battery units. The model also incorporates the interaction between PV units and the grid during voltage sag events. ETAP simulations were used to demonstrate the effectiveness of the proposed approach. The results of this paper provide valuable insights into the mitigation of voltage sags in low-voltage networks with PV and battery units. By analyzing different methods and their associated models.


Keywords


Voltage Sag; PV system; Battery units; ETAP, RMS; Study State; DVR

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References


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DOI (PDF): https://doi.org/10.20508/ijrer.v14i4.14568.g8944

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