Multi-Functional PV Inverter With Low Voltage Ride-Through and Constant Power Output
Renewable photovoltaic (PV) energy is a primary contributor to sustainable power generation in microgrids. However, PV grid-tied generators remain functional as long as the grid voltage and the input PV source remain normal. Abnormal conditions like transient grid sags or solar irradiation flickerin...
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| Format: | Article |
| Language: | English |
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IEEE
2022-01-01
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| Series: | IEEE Access |
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| Online Access: | https://ieeexplore.ieee.org/document/9733375/ |
| _version_ | 1798030559950143488 |
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| author | Muhammad Talha Siti Rohani Sheikh Raihan Nasrudin Abd Rahim Muhammad Naveed Akhtar Osama M. Butt Muhammad Majid Hussain |
| author_facet | Muhammad Talha Siti Rohani Sheikh Raihan Nasrudin Abd Rahim Muhammad Naveed Akhtar Osama M. Butt Muhammad Majid Hussain |
| author_sort | Muhammad Talha |
| collection | DOAJ |
| description | Renewable photovoltaic (PV) energy is a primary contributor to sustainable power generation in microgrids. However, PV grid-tied generators remain functional as long as the grid voltage and the input PV source remain normal. Abnormal conditions like transient grid sags or solar irradiation flickering can make the grid-tied inverter go offline. Simultaneous shut down of PV generators residing in the distribution grid may lead to an overall grid instability or outage. Therefore, PV generators must be equipped with fault-ride-through mechanisms in order to remain connected and operational during faults. This paper presents a PV-inverter with low-voltage-ride-through (LVRT) and low-irradiation (LR) compensation to avoid grid flickers. The single-phase inverter rides through the voltage sags while injecting reactive power into the grid. The proposed control strategy ensures a steady DC-link voltage and remains connected to the grid during AC-side low voltage and DC-side low-irradiation faults. Unlike other PV inverters, the controller maintains the maximum-power-point-tracking (MPPT) in all conditions. LVRT, constant power output, and robust MPPT are the noticeable features of the proposed system. Frequency analysis, simulations, and a laboratory prototype validate the proposed control strategy. |
| first_indexed | 2024-04-11T19:43:18Z |
| format | Article |
| id | doaj.art-e1e1ba093c4045e2bb5888372056ff5f |
| institution | Directory Open Access Journal |
| issn | 2169-3536 |
| language | English |
| last_indexed | 2024-04-11T19:43:18Z |
| publishDate | 2022-01-01 |
| publisher | IEEE |
| record_format | Article |
| series | IEEE Access |
| spelling | doaj.art-e1e1ba093c4045e2bb5888372056ff5f2022-12-22T04:06:39ZengIEEEIEEE Access2169-35362022-01-0110295672958810.1109/ACCESS.2022.31589839733375Multi-Functional PV Inverter With Low Voltage Ride-Through and Constant Power OutputMuhammad Talha0Siti Rohani Sheikh Raihan1https://orcid.org/0000-0001-7258-2212Nasrudin Abd Rahim2https://orcid.org/0000-0002-1834-1984Muhammad Naveed Akhtar3Osama M. Butt4https://orcid.org/0000-0003-4332-1181Muhammad Majid Hussain5https://orcid.org/0000-0002-6255-6966Higher Institution Centre of Excellence (HICoE), UM Power Energy Dedicated Advanced Center (UMPEDAC), University of Malaya, Kuala Lumpur, MalaysiaHigher Institution Centre of Excellence (HICoE), UM Power Energy Dedicated Advanced Center (UMPEDAC), University of Malaya, Kuala Lumpur, MalaysiaHigher Institution Centre of Excellence (HICoE), UM Power Energy Dedicated Advanced Center (UMPEDAC), University of Malaya, Kuala Lumpur, MalaysiaDepartment of Electrical Engineering, Rachna College of Engineering and Technology, Gujranwala, PakistanHigher Institution Centre of Excellence (HICoE), UM Power Energy Dedicated Advanced Center (UMPEDAC), University of Malaya, Kuala Lumpur, MalaysiaFaculty of Computing, Engineering and Science, University of South Wales, Cardiff, U.K.Renewable photovoltaic (PV) energy is a primary contributor to sustainable power generation in microgrids. However, PV grid-tied generators remain functional as long as the grid voltage and the input PV source remain normal. Abnormal conditions like transient grid sags or solar irradiation flickering can make the grid-tied inverter go offline. Simultaneous shut down of PV generators residing in the distribution grid may lead to an overall grid instability or outage. Therefore, PV generators must be equipped with fault-ride-through mechanisms in order to remain connected and operational during faults. This paper presents a PV-inverter with low-voltage-ride-through (LVRT) and low-irradiation (LR) compensation to avoid grid flickers. The single-phase inverter rides through the voltage sags while injecting reactive power into the grid. The proposed control strategy ensures a steady DC-link voltage and remains connected to the grid during AC-side low voltage and DC-side low-irradiation faults. Unlike other PV inverters, the controller maintains the maximum-power-point-tracking (MPPT) in all conditions. LVRT, constant power output, and robust MPPT are the noticeable features of the proposed system. Frequency analysis, simulations, and a laboratory prototype validate the proposed control strategy.https://ieeexplore.ieee.org/document/9733375/MicrogridPV inverterLVRTconstant power outputMPPT |
| spellingShingle | Muhammad Talha Siti Rohani Sheikh Raihan Nasrudin Abd Rahim Muhammad Naveed Akhtar Osama M. Butt Muhammad Majid Hussain Multi-Functional PV Inverter With Low Voltage Ride-Through and Constant Power Output IEEE Access Microgrid PV inverter LVRT constant power output MPPT |
| title | Multi-Functional PV Inverter With Low Voltage Ride-Through and Constant Power Output |
| title_full | Multi-Functional PV Inverter With Low Voltage Ride-Through and Constant Power Output |
| title_fullStr | Multi-Functional PV Inverter With Low Voltage Ride-Through and Constant Power Output |
| title_full_unstemmed | Multi-Functional PV Inverter With Low Voltage Ride-Through and Constant Power Output |
| title_short | Multi-Functional PV Inverter With Low Voltage Ride-Through and Constant Power Output |
| title_sort | multi functional pv inverter with low voltage ride through and constant power output |
| topic | Microgrid PV inverter LVRT constant power output MPPT |
| url | https://ieeexplore.ieee.org/document/9733375/ |
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