Single-Phase Grid-Tied Transformerless Inverter of Zero Leakage Current for PV System
Efficiency; Electric inverters; Solar power generation; Topology; Common mode voltage; Five level inverter; Grid-connected photovoltaic inverters; Grid-tied PV systems; IGBT inverters; Parasitic capacitors; Solar PVs; Transformerless inverters; Leakage currents
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Institute of Electrical and Electronics Engineers Inc.
2023
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my.uniten.dspace-257852023-05-29T16:14:16Z Single-Phase Grid-Tied Transformerless Inverter of Zero Leakage Current for PV System Sabry A. Mohammed Z.M. Nordin F.H. Nik Ali N.H. Al-Ogaili A.S. 56602511900 57189300744 25930510500 57196922007 57189511897 Efficiency; Electric inverters; Solar power generation; Topology; Common mode voltage; Five level inverter; Grid-connected photovoltaic inverters; Grid-tied PV systems; IGBT inverters; Parasitic capacitors; Solar PVs; Transformerless inverters; Leakage currents Multi-level transformerless inverters are widely used in grid-tied PV systems since they characterized by higher efficiency and lower cost. In this context, new topologies, modulation, and control schemes were presented to solve problems of a common-mode voltage and leakage current. This work proposes a transformerless five-level inverter with zero leakage current and ability to reduce the harmonic output content for a grid-tied single-phase PV system. The neutral of the grid links to a common on which the negative and the positive terminals of the DC-link are connected via parasitic capacitors that can eliminate the leakage current. The proposed topology, with its inherent circuit structure, leads to boost the overall efficiency. Simulation and experimental results show almost zero leakage current and a high-quality output when maintaining balanced capacitor voltages on the DC-link input. The experimental results show 1.07% THD and 96.3 % maximum efficiency when injecting a power of 1.1 kW that verify the performance of the proposed inverter with PV sources. � 2013 IEEE. Final 2023-05-29T08:14:15Z 2023-05-29T08:14:15Z 2020 Article 10.1109/ACCESS.2019.2963284 2-s2.0-85078139883 https://www.scopus.com/inward/record.uri?eid=2-s2.0-85078139883&doi=10.1109%2fACCESS.2019.2963284&partnerID=40&md5=12d37342bbf747e6b476b537dc4f226a https://irepository.uniten.edu.my/handle/123456789/25785 8 8946611 4361 4371 All Open Access, Gold Institute of Electrical and Electronics Engineers Inc. Scopus |
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Efficiency; Electric inverters; Solar power generation; Topology; Common mode voltage; Five level inverter; Grid-connected photovoltaic inverters; Grid-tied PV systems; IGBT inverters; Parasitic capacitors; Solar PVs; Transformerless inverters; Leakage currents |
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56602511900 |
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56602511900 Sabry A. Mohammed Z.M. Nordin F.H. Nik Ali N.H. Al-Ogaili A.S. |
| format |
Article |
| author |
Sabry A. Mohammed Z.M. Nordin F.H. Nik Ali N.H. Al-Ogaili A.S. |
| spellingShingle |
Sabry A. Mohammed Z.M. Nordin F.H. Nik Ali N.H. Al-Ogaili A.S. Single-Phase Grid-Tied Transformerless Inverter of Zero Leakage Current for PV System |
| author_sort |
Sabry A. |
| title |
Single-Phase Grid-Tied Transformerless Inverter of Zero Leakage Current for PV System |
| title_short |
Single-Phase Grid-Tied Transformerless Inverter of Zero Leakage Current for PV System |
| title_full |
Single-Phase Grid-Tied Transformerless Inverter of Zero Leakage Current for PV System |
| title_fullStr |
Single-Phase Grid-Tied Transformerless Inverter of Zero Leakage Current for PV System |
| title_full_unstemmed |
Single-Phase Grid-Tied Transformerless Inverter of Zero Leakage Current for PV System |
| title_sort |
single-phase grid-tied transformerless inverter of zero leakage current for pv system |
| publisher |
Institute of Electrical and Electronics Engineers Inc. |
| publishDate |
2023 |
| _version_ |
1806427962618150912 |