A Grid-tied PV Inverter with Sag-severity-independent Low-voltage Ride Through, Reactive Power Support, and Islanding Protection
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 n...
| Main Authors: | , , |
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| Format: | Article |
| Language: | English |
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IEEE
2021-01-01
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| Series: | Journal of Modern Power Systems and Clean Energy |
| Subjects: | |
| Online Access: | https://ieeexplore.ieee.org/document/9627871/ |
| _version_ | 1818691176815919104 |
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| author | Muhammad Talha Siti Rohani S. Raihan Nasrudin Abd. Rahim |
| author_facet | Muhammad Talha Siti Rohani S. Raihan Nasrudin Abd. Rahim |
| author_sort | Muhammad Talha |
| collection | DOAJ |
| description | 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. |
| first_indexed | 2024-12-17T12:37:44Z |
| format | Article |
| id | doaj.art-8f8e5d1925b344b08847c2e5f6c54552 |
| institution | Directory Open Access Journal |
| issn | 2196-5420 |
| language | English |
| last_indexed | 2024-12-17T12:37:44Z |
| publishDate | 2021-01-01 |
| publisher | IEEE |
| record_format | Article |
| series | Journal of Modern Power Systems and Clean Energy |
| spelling | doaj.art-8f8e5d1925b344b08847c2e5f6c545522022-12-21T21:48:12ZengIEEEJournal of Modern Power Systems and Clean Energy2196-54202021-01-01961300131110.35833/MPCE.2021.0003199627871A Grid-tied PV Inverter with Sag-severity-independent Low-voltage Ride Through, Reactive Power Support, and Islanding ProtectionMuhammad Talha0Siti Rohani S. Raihan1Nasrudin Abd. Rahim2UM Power Energy Dedicated Advanced Center (UMPEDAC), University of Malaya,Kualalumpur,MalaysiaUM Power Energy Dedicated Advanced Center (UMPEDAC), University of Malaya,Kualalumpur,MalaysiaUM Power Energy Dedicated Advanced Center (UMPEDAC), University of Malaya,Kualalumpur,MalaysiaThis 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.https://ieeexplore.ieee.org/document/9627871/Low-voltage ride through (LVRT)Sagmaximum power point tracking (MPPT)single-phase photovoltaic (PV) inverterPV-battery system |
| spellingShingle | Muhammad Talha Siti Rohani S. Raihan Nasrudin Abd. Rahim 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 Low-voltage ride through (LVRT) Sag maximum power point tracking (MPPT) single-phase photovoltaic (PV) inverter PV-battery system |
| title | A Grid-tied PV Inverter with Sag-severity-independent Low-voltage Ride Through, Reactive Power Support, and Islanding Protection |
| title_full | A Grid-tied PV Inverter with Sag-severity-independent Low-voltage Ride Through, Reactive Power Support, and Islanding Protection |
| title_fullStr | A Grid-tied PV Inverter with Sag-severity-independent Low-voltage Ride Through, Reactive Power Support, and Islanding Protection |
| title_full_unstemmed | A Grid-tied PV Inverter with Sag-severity-independent Low-voltage Ride Through, Reactive Power Support, and Islanding Protection |
| title_short | A Grid-tied PV Inverter with Sag-severity-independent Low-voltage Ride Through, Reactive Power Support, and Islanding Protection |
| title_sort | grid tied pv inverter with sag severity independent low voltage ride through reactive power support and islanding protection |
| topic | Low-voltage ride through (LVRT) Sag maximum power point tracking (MPPT) single-phase photovoltaic (PV) inverter PV-battery system |
| url | https://ieeexplore.ieee.org/document/9627871/ |
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