This paper analyzes the performance of a gridtied, wide power range, transformerless, modified threephase Current Source Inverter (CSI), named CSI7. The CSI7 topology is here analyzed along with a suitable Space Vector Modulation (SVM) strategy able to attenuate the excitation of the output CL filter. The theoretical analysis and simple analytic expressions highlighted the performance and limitations of the topology when employed as a singlestage PV inverter, with particular emphasis on injected grid currents distortion and ground leakage current values. The inverter wide input range allows interfacing PV strings of different module count with a simple closed loop control. The principle of operation and control is described, the viability of the CSI7 topology was assessed with simulations and extensive experiments on a full-size laboratory prototype.

CSI7: a Modified Three-phase Current Source Inverter for Modular Photovoltaic Applications / Lorenzani, Emilio; Immovilli, Fabio; Migliazza, Giovanni; Frigieri, Matteo; Bianchini, Claudio; Davoli, Matteo. - In: IEEE TRANSACTIONS ON INDUSTRIAL ELECTRONICS. - ISSN 0278-0046. - (2017), pp. 1-1. [10.1109/TIE.2017.2674595]

CSI7: a Modified Three-phase Current Source Inverter for Modular Photovoltaic Applications

LORENZANI, EMILIO;IMMOVILLI, Fabio;MIGLIAZZA, Giovanni;BIANCHINI, Claudio;DAVOLI, MATTEO
2017

Abstract

This paper analyzes the performance of a gridtied, wide power range, transformerless, modified threephase Current Source Inverter (CSI), named CSI7. The CSI7 topology is here analyzed along with a suitable Space Vector Modulation (SVM) strategy able to attenuate the excitation of the output CL filter. The theoretical analysis and simple analytic expressions highlighted the performance and limitations of the topology when employed as a singlestage PV inverter, with particular emphasis on injected grid currents distortion and ground leakage current values. The inverter wide input range allows interfacing PV strings of different module count with a simple closed loop control. The principle of operation and control is described, the viability of the CSI7 topology was assessed with simulations and extensive experiments on a full-size laboratory prototype.
2017
1
1
CSI7: a Modified Three-phase Current Source Inverter for Modular Photovoltaic Applications / Lorenzani, Emilio; Immovilli, Fabio; Migliazza, Giovanni; Frigieri, Matteo; Bianchini, Claudio; Davoli, Matteo. - In: IEEE TRANSACTIONS ON INDUSTRIAL ELECTRONICS. - ISSN 0278-0046. - (2017), pp. 1-1. [10.1109/TIE.2017.2674595]
Lorenzani, Emilio; Immovilli, Fabio; Migliazza, Giovanni; Frigieri, Matteo; Bianchini, Claudio; Davoli, Matteo
File in questo prodotto:
File Dimensione Formato  
CSI7_A_Modified_Three-Phase_Current-Source_Inverter_for_Modular_Photovoltaic_Applications.pdf

Accesso riservato

Tipologia: Versione pubblicata dall'editore
Dimensione 1.85 MB
Formato Adobe PDF
1.85 MB Adobe PDF   Visualizza/Apri   Richiedi una copia
POST_PRINT_TIE.2017.2674595.pdf

Open access

Tipologia: Versione dell'autore revisionata e accettata per la pubblicazione
Dimensione 1.6 MB
Formato Adobe PDF
1.6 MB Adobe PDF Visualizza/Apri
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/11380/1131020
Citazioni
  • ???jsp.display-item.citation.pmc??? ND
  • Scopus 70
  • ???jsp.display-item.citation.isi??? 55
social impact