An Interlinking Converter for Renewable Energy Integration into Hybrid Grids

Z. Tang, Yongheng Yang*, F. Blaabjerg

*Corresponding author

Research output: Contribution to journalJournal articleResearchpeer-review

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Abstract

This letter proposes an interlinking converter architecture, which enables flexibly integrating renewable energy into hybrid grids. The proposed converter has one AC port and two DC ports, offering a flexible solution to integrating various DC and AC sources, which can also be versatilely configured as a DC-DC converter, a DC-AC inverter, or a DC-DC/AC multi-port converter. The general concept of the architecture, its common-mode voltage analysis and flexible operation modes are detailed in this letter. Experimental tests are performed on an example converter with a dedicated modulation strategy. The test results confirm the concept in terms of flexible conversion, high power density, low leakage currents as well as controllable power flow.
Original languageEnglish
Article number9173714
JournalIEEE Transactions on Power Electronics
Volume36
Issue number3
Pages (from-to)2499-2504
Number of pages6
ISSN0885-8993
DOIs
Publication statusPublished - Mar 2021

Keywords

  • hybrid DC/AC grid
  • power converter
  • renewable energy integration
  • flexibility
  • leakage current

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