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

Conference · Thu Jul 07 00:00:00 EDT 2022

OSTI ID:1876015

Men, Yuxi; Lu, Xiaonan; Zhang, Zheyu; Thiagarajan, Ramanathan

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.

• Research Organization: National Renewable Energy Laboratory (NREL), Golden, CO (United States)
• Sponsoring Organization: USDOE Office of Energy Efficiency and Renewable Energy (EERE), Solar Energy Technologies Office (EE-4S)
• DOE Contract Number: AC36-08GO28308
• OSTI ID: 1876015
• Report Number(s): NREL/CP-5D00-82874; MainId:83647; UUID:55e11f85-150b-4ff6-a9bd-1c488cdebfc8; MainAdminID:64824
• Conference Information: Presented at the 2022 IEEE 13th International Symposium Power Electronics for Distributed Generation Systems (PEDG), 26-29 June 2022, Kiel, Germany
• Country of Publication: United States
• Language: English

Related Subjects

lifetime estimation
metal oxide varistors (MOVs)
photovoltaic (PV) systems
POWER TRANSMISSION AND DISTRIBUTION
SOLAR ENERGY