Ιδρυματικό Αποθετήριο
Πολυτεχνείο Κρήτης
Πολυτεχνείο Κρήτης
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| URI | http://purl.tuc.gr/dl/dias/A9C665A0-31DE-4AD5-9FAC-FA2F4A7529D2 | - |
| Αναγνωριστικό | https://ieeexplore.ieee.org/document/9907343 | - |
| Γλώσσα | en | - |
| Μέγεθος | 10 pages | en |
| Τίτλος | Evaluation of common-mode leakage current of Aalborg-type transformerless PV inverters | en |
| Δημιουργός | Orfanoudakis, G. I | en |
| Δημιουργός | Koutroulis Eftychios | en |
| Δημιουργός | Κουτρουλης Ευτυχιος | el |
| Δημιουργός | Foteinopoulos Georgios | en |
| Δημιουργός | Φωτεινοπουλος Γεωργιος | el |
| Δημιουργός | Wu Weimin | en |
| Εκδότης | Institute of Electrical and Electronics Engineers | en |
| Περιγραφή | This work was performed within the framework of the project “eSOLAR: Principle and control of high-efficiency Buck-Boost type Photovoltaic inverter” of the program “Bilateral and Multilateral Research & Technology Co-operation between Greece and China”, funded in Greece by the Operational Program “Competitiveness, Entrepreneurship and Innovation 2014-2020” (co-funded by the European Regional Development Fund) and managed by the General Secretariat of Research and Technology, Ministry of Education, Research, and Religious Affairs under the project eSOLAR/T7ΔKI-00066. | en |
| Περίληψη | Single-phase transformerless photovoltaic (PV) inverters with voltage step-up capability are widely employed for integrating PV generation to the electric grid. Transformerless PV inverter topologies include special features to suppress common-mode (CM) leakage currents that can flow through parasitic capacitances that appear between the PV array and the ground. The Aalborg inverter belongs to the family of dual-mode time-sharing PV inverters, in which a voltage step-up (Boost) stage operates alternatively to a step-down (Buck) stage to create a rectified sine wave DC-link voltage, which is then unfolded to the grid. This paper analyses, quantifies and improves CM leakage current generation for Aalborg-type transformerless PV inverters. It highlights the factors that can lead to high peak and RMS values of leakage current for these topologies and proposes an output filter modification to reduce them by up to 70%. The analytical results are supported by simulation in MATLAB-Simulink and are applicable to other topologies with rectified sine wave DC-link voltages. | en |
| Τύπος | Πλήρης Δημοσίευση σε Συνέδριο | el |
| Τύπος | Conference Full Paper | en |
| Άδεια Χρήσης | http://creativecommons.org/licenses/by/4.0/ | en |
| Ημερομηνία | 2024-12-19 | - |
| Ημερομηνία Δημοσίευσης | 2022 | - |
| Θεματική Κατηγορία | Grid-connected inverter | en |
| Θεματική Κατηγορία | Transformerless PV inverter | en |
| Θεματική Κατηγορία | Dual-mode time-sharing inverter | en |
| Θεματική Κατηγορία | Buck in Buck, Boost in Boost inverter | en |
| Θεματική Κατηγορία | Step-up inverter | en |
| Θεματική Κατηγορία | Rectified sine wave DC-link voltage | en |
| Θεματική Κατηγορία | Aalborg inverter | en |
| Θεματική Κατηγορία | Common-mode current | en |
| Θεματική Κατηγορία | Ground leakage current | en |
| Βιβλιογραφική Αναφορά | G. I. Orfanoudakis, E. Koutroulis, G. Foteinopoulos and W. Wu, "Evaluation of common-mode leakage current of Aalborg-type transformerless PV inverters," in Proceedings of the 24th European Conference on Power Electronics and Applications (EPE 2022 ECCE Europe), Hanover, Germany, 2022. | en |
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