Photovoltaic (PV) energy conversion has been on the spotlight of scientific research on renewable energy for several years. In recent years, the bulk of the research on PV has focused on transformerless grid-connected inverters, more efficient than traditional line transformer-based ones, but more critical from a power quality point of view, especially in terms of ground leakage current. Neutral-point-clamped (NPC) inverters have recently gained interest due to their intrinsically low ground leakage current and high efficiency, especially for MOSFET-based topologies. This paper presents an active NPC (ANPC) topology equipped with 650-V silicon carbide (SiC) MOSFETs, with a new modulation strategy that allows to reap the benefits of the wide-bandgap devices. An efficiency improvement is obtained due to the parallel operation of two devices during the freewheeling intervals. Simulations and experimental results confirm the effectiveness of the proposed converter.

Performance Evaluation of a Three-Level ANPC Photovoltaic Grid-Connected Inverter With 650-V SiC Devices and Optimized PWM / Barater, Davide; Concari, Carlo; Buticchi, Giampaolo; Gurpinar, Emre; De, Dipankar; Castellazzi, Alberto. - In: IEEE TRANSACTIONS ON INDUSTRY APPLICATIONS. - ISSN 0093-9994. - 52:3(2016), pp. 2475-2485. [10.1109/TIA.2016.2514344]

Performance Evaluation of a Three-Level ANPC Photovoltaic Grid-Connected Inverter With 650-V SiC Devices and Optimized PWM

Barater, Davide;
2016

Abstract

Photovoltaic (PV) energy conversion has been on the spotlight of scientific research on renewable energy for several years. In recent years, the bulk of the research on PV has focused on transformerless grid-connected inverters, more efficient than traditional line transformer-based ones, but more critical from a power quality point of view, especially in terms of ground leakage current. Neutral-point-clamped (NPC) inverters have recently gained interest due to their intrinsically low ground leakage current and high efficiency, especially for MOSFET-based topologies. This paper presents an active NPC (ANPC) topology equipped with 650-V silicon carbide (SiC) MOSFETs, with a new modulation strategy that allows to reap the benefits of the wide-bandgap devices. An efficiency improvement is obtained due to the parallel operation of two devices during the freewheeling intervals. Simulations and experimental results confirm the effectiveness of the proposed converter.
52
3
2475
2485
Performance Evaluation of a Three-Level ANPC Photovoltaic Grid-Connected Inverter With 650-V SiC Devices and Optimized PWM / Barater, Davide; Concari, Carlo; Buticchi, Giampaolo; Gurpinar, Emre; De, Dipankar; Castellazzi, Alberto. - In: IEEE TRANSACTIONS ON INDUSTRY APPLICATIONS. - ISSN 0093-9994. - 52:3(2016), pp. 2475-2485. [10.1109/TIA.2016.2514344]
Barater, Davide; Concari, Carlo; Buticchi, Giampaolo; Gurpinar, Emre; De, Dipankar; Castellazzi, Alberto
File in questo prodotto:
File Dimensione Formato  
POST PRINT_Performance_Evaluation_of_a_Three-Level_ANPC_Photovoltaic_Grid-Connected_Inverter_With_650-V_SiC_Devices_and_Optimized_PWM.pdf

accesso aperto

Tipologia: Post-print dell'autore (bozza post referaggio)
Dimensione 5.38 MB
Formato Adobe PDF
5.38 MB Adobe PDF Visualizza/Apri
VOR_Performance_Evaluation_of_a_Three-Level_ANPC_Photovoltaic_Grid-Connected_Inverter_With_650-V_SiC_Devices_and_Optimized_PWM.pdf

non disponibili

Tipologia: Versione dell'editore (versione pubblicata)
Dimensione 3.02 MB
Formato Adobe PDF
3.02 MB Adobe PDF   Visualizza/Apri   Richiedi una copia
Pubblicazioni consigliate

Caricamento pubblicazioni consigliate

Licenza Creative Commons
I metadati presenti in IRIS UNIMORE sono rilasciati con licenza Creative Commons CC0 1.0 Universal, mentre i file delle pubblicazioni sono rilasciati con licenza Attribuzione 4.0 Internazionale (CC BY 4.0), salvo diversa indicazione.
In caso di violazione di copyright, contattare Supporto Iris

Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11380/1170925
Citazioni
  • ???jsp.display-item.citation.pmc??? ND
  • Scopus 102
  • ???jsp.display-item.citation.isi??? 87
social impact