A Grid-tied PV Inverter with Sag-severity-independent Low-voltage Ride Through, Reactive Power Support, and Islanding Protection

Muhammad Talha,Siti Rohani S. Raihan,Nasrudin Abd. Rahim

Journal of Modern Power Systems and Clean Energy（2021）

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摘要

This paper proposes a grid-tied photovoltaic (PV) inverter capable of low-voltage ride through (LVRT), reactive power support, and islanding protection. Unlike other LVRT inverters, the proposed inverter is independent of sag severity while maintaining the maximum power-point tracking (MPPT) under normal and faulty conditions. The addition of an energy storage buffer stage mitigates the DC-link vo...

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关键词

Low-voltage ride through (LVRT),Sag,maximum power point tracking (MPPT),single-phase photovoltaic (PV) inverter,PV-battery system

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