Metal Oxide Varistor (MOV) Lifetime Estimation with Impulse-Based Testing in PV Inverter Systems: Preprint

Yuxi Men, Xiaonan Lu, Zheyu Zhang, Ramanathan Thiagarajan

Research output: Contribution to conferencePaper

Abstract

Surges caused by lightning strikes could damage electrical components in photovoltaic (PV) systems. Metal oxide varistors (MOVs) are commonly used to protect PV systems from lightning strikes. In this paper, a holistic impulse-based MOV lifetime estimation framework is proposed. The impacts of peak current and fault duration induced by lightning events are considered in the MOV lifetime estimation framework. Moreover, the impact of different parameter combinations on MOV lifetime estimation is analyzed. The effectiveness of the proposed work is validated in a PV inverter test system developed in MATLAB/Simulink.
Original languageAmerican English
Number of pages7
StatePublished - 2022
Event2022 IEEE 13th International Symposium Power Electronics for Distributed Generation Systems (PEDG) - Kiel, Germany
Duration: 26 Jun 202229 Jun 2022

Conference

Conference2022 IEEE 13th International Symposium Power Electronics for Distributed Generation Systems (PEDG)
CityKiel, Germany
Period26/06/2229/06/22

Bibliographical note

See NREL/CP-5D00-84998 for paper as published in proceedings

NREL Publication Number

  • NREL/CP-5D00-82874

Keywords

  • lifetime estimation
  • metal oxide varistors (MOVs)
  • photovoltaic (PV) systems

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