Power-Hardware-In-Loop harmonic analysis of a Smart Transformer-fed distribution grid

Giovanni De Carne, Giampaolo Buticchi, Tamas Kerekes, Marco Liserre

Research output: Chapter in Book/Conference proceedingConference contributionpeer-review

4 Citations (Scopus)

Abstract

The Smart Transformer (ST) offers ancillary services in the low voltage grids. These new services in a real distribution grid can be demonstrated by means of simulation software, but it is difficult to prove them in lab due to the complexity and heterogeneity of the distribution grids. The Power-Hardware-In-Loop (PHIL) evaluation is an interesting solution for emulating the interaction between the real grid, simulated in a Real Time Digital Simulator (RTDS), and the ST. However the PHIL evaluation requires careful analysis. Depending on the interface topology the stability and the accuracy of the loop can be affected. This is mostly true when the interface converter is not a linear power amplifier, but just a simple DC/AC switching converter. Actually, no considerations have been made in the literature about the accuracy and stability of the PHIL in case of non-linear interface converter. This paper focuses on evaluating the harmonic behavior of the PHIL in case of current harmonic content in the grid. Depending on the bandwidth of the interface converter, the accuracy of the PHIL in simulating harmonic currents can be affected. The analytical considerations on the accuracy of the loop have been verified experimentally in a complex LV grid.

Original languageEnglish
Title of host publicationProceedings of the IECON 2016 - 42nd Annual Conference of the Industrial Electronics Society
PublisherIEEE Computer Society
Pages7004-7009
Number of pages6
ISBN (Electronic)9781509034741
DOIs
Publication statusPublished - 21 Dec 2016
Externally publishedYes
Event42nd Conference of the Industrial Electronics Society, IECON 2016 - Florence, Italy
Duration: 24 Oct 201627 Oct 2016

Publication series

NameIECON Proceedings (Industrial Electronics Conference)

Conference

Conference42nd Conference of the Industrial Electronics Society, IECON 2016
Country/TerritoryItaly
CityFlorence
Period24/10/1627/10/16

ASJC Scopus subject areas

  • Control and Systems Engineering
  • Electrical and Electronic Engineering

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