Talha, Muhammad and Sheikh Raihan, Siti Rohani and Abd Rahim, Nasrudin (2021) A grid-tied PV inverter with sag-severity-independent low-voltage ride through, reactive power support, and islanding protection. Journal of Modern Power Systems and Clean Energy, 9 (6). pp. 1300-1311. ISSN 2196-5625, DOI https://doi.org/10.35833/MPCE.2021.000319.
Full text not available from this repository.Abstract
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 voltage surge during sags. At the same time, the inverter injects the reactive power during back-to-back sags of variable depths. The control system of the inverter generates the appropriate reference signals for normal, LVRT, and anti-islanding modes while the MPPT continues running. The salient features of the proposed inverter are: (1) active power injection under normal grid conditions; (2) sag-depth independent LVRT with reactive power support; (3) no DC-link fluctuations; (4)continuous MPPT mode; and (5) simultaneous LVRT and anti-islanding support during a grid outage. The inverter demonstrates an uninterrupted operation and seamless transition between various operating modes. Simulations and the experimental prototype have been implemented to validate the efficacy of the proposed PV inverter.
| Item Type: | Article |
|---|---|
| Funders: | Program Research Grant UMPEDAC-2020, Ministry of Education, Malaysia (RU003-2020), Ministry of Education, Malaysia (RU002-2021), Universiti Malaya |
| Uncontrolled Keywords: | Low-voltage ride through (LVRT); Sag; Maximum power point tracking (MPPT); Single-phase photovoltaic (PV) inverter; PV-battery system |
| Subjects: | T Technology > TA Engineering (General). Civil engineering (General) |
| Divisions: | Deputy Vice Chancellor (Research & Innovation) Office > UM Power Energy Dedicated Advanced Centre |
| Depositing User: | Ms Zaharah Ramly |
| Date Deposited: | 25 May 2022 02:14 |
| Last Modified: | 25 May 2022 02:14 |
| URI: | http://eprints.um.edu.my/id/eprint/27142 |
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