Line impedance estimation using model based identification technique

Mihai Ciobotaru, Vassilios Agelidis, Remus Teodorescu

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

38 Citations (Scopus)

Abstract

The estimation of the line impedance can be used by the control of numerous grid-connected systems, such as active filters, islanding detection techniques, non-linear current controllers, detection of the on/off grid operation mode. Therefore, estimating the line impedance can add extra functions into the operation of the grid-connected power converters. This paper describes a quasi-passive method for estimating the line impedance of the distribution electricity network. The method uses the model based identification technique to obtain the resistive and inductive parts of the line impedance. The quasi-passive behaviour of the proposed method comes from the combination of the non-intrusive behaviour of the passive methods with a better accuracy of the active methods. The simulation results reveal the good accuracy of the proposed method.
Original languageEnglish
Title of host publicationProceedings of the 2011 14th European Conference on Power Electronics and Applications, EPE 2011
PublisherInstitute of Electrical and Electronics Engineers (IEEE)
Pages1-9
Number of pages9
ISBN (Electronic)9789075815146, 9789075815153
ISBN (Print)9781612841670
Publication statusPublished - 2011
Externally publishedYes
Event16th European Conference on Power Electronics and Applications, EPE 2011 - Birmingham, United Kingdom
Duration: 30 Aug 20111 Sep 2011

Conference

Conference16th European Conference on Power Electronics and Applications, EPE 2011
CountryUnited Kingdom
CityBirmingham
Period30/08/111/09/11

Keywords

  • Distributed power
  • Estimation technique
  • Renewable energy systems
  • Single phase system
  • Voltage Source Inverters (VSI)

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