Comparison between grid side and inverter side current control for parallel interleaved grid connected converters

Lorand Bede, Ghanshyamsinh Gohil, Tamas Kerekes, Mihai Ciobotaru, Remus Teodorescu, Vassilios G. Agelidis

Research output: Chapter in Book/Report/Conference proceedingConference proceeding contribution

1 Citation (Scopus)

Abstract

To meet the ever stringent grid codes, the high power converter systems have multiple converters connected in parallel and require high order filters due to their limited switching capability. Controlling the grid current and, at the same time, ensuring equal current sharing is a challenge that these converters have to face. There are two main methods on how to control the output current of the converter system: either by directly controlling the total grid current and applying the same gate signals for all parallel converters, or by controlling the individual converters' currents. Using simulation and experimental results, this paper presents the advantages and disadvantages of both control methods when applied on a converter system consisting of two parallel interleaved converters connected to the electricity grid through a high order filter. For a better comparison, a controller design for both methods is also included.
Original languageEnglish
Title of host publication2015 17th European Conference on Power Electronics and Applications (EPE'15 ECCE-Europe)
PublisherInstitute of Electrical and Electronics Engineers (IEEE)
Number of pages10
ISBN (Electronic)9789075815221
DOIs
Publication statusPublished - 27 Oct 2015
Externally publishedYes
Event17th European Conference on Power Electronics and Applications, EPE-ECCE Europe 2015 - Geneva, Switzerland
Duration: 8 Sep 201510 Sep 2015

Other

Other17th European Conference on Power Electronics and Applications, EPE-ECCE Europe 2015
CountrySwitzerland
CityGeneva
Period8/09/1510/09/15

Keywords

  • Converter control
  • Interleaved converters
  • Renewable energy systems
  • Voltage Source Converter (VSC)

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