A Hybrid Three-Level ZVZCS Converter for Photovoltaic Power Connecting to MVDC Collection System

Xiaokun He, Renjie Hu and Wu Chen
Additional contact information
Xiaokun He: School of Electrical Engineering, Southeast University, Nanjing 210096, China
Renjie Hu: School of Electrical Engineering, Southeast University, Nanjing 210096, China
Wu Chen: School of Electrical Engineering, Southeast University, Nanjing 210096, China

Energies, 2022, vol. 15, issue 15, 1-15

Abstract: Compared with the medium voltage ac (MVAC) collection system, the medium voltage dc (MVDC) one for renewable energy sources has many advantages. High-power dc/dc converters are one of the key stages of the MVDC collection system to boost the voltage generated by photovoltaic or wind turbine. A novel hybrid three-level dc/dc converter utilizing a blocking capacitor to realize zero-voltage zero-current-switching (ZVZCS) is proposed. A higher overall efficiency can be achieved by reducing conduction losses. Detailed experimental results on a scaled-down hardware prototype rated at 150 V/750 V/1 kW are demonstrated to verify the proposed converter performance.

Keywords: ZVZCS; hybrid three-level converter; circulating current; MVDC (search for similar items in EconPapers)
JEL-codes: Q Q0 Q4 Q40 Q41 Q42 Q43 Q47 Q48 Q49 (search for similar items in EconPapers)
Date: 2022
References: View complete reference list from CitEc
Citations: View citations in EconPapers (2)

Downloads: (external link)
https://www.mdpi.com/1996-1073/15/15/5365/pdf (application/pdf)
https://www.mdpi.com/1996-1073/15/15/5365/ (text/html)

Related works:
This item may be available elsewhere in EconPapers: Search for items with the same title.

Export reference: BibTeX RIS (EndNote, ProCite, RefMan) HTML/Text

Persistent link: https://EconPapers.repec.org/RePEc:gam:jeners:v:15:y:2022:i:15:p:5365-:d:870663

Access Statistics for this article

Energies is currently edited by Ms. Agatha Cao

More articles in Energies from MDPI
Bibliographic data for series maintained by MDPI Indexing Manager ().