Negative-sequence current injection of dispersed generation for islanding detection and unbalanced fault ride-through

Nguyen Duc Tuyen, Goro Fujita

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

12 Citations (Scopus)

Abstract

Power electronic interface of dispersed generation play a very important role in connecting a dispersed generation itself with utility grid. A power electronic interface not only controls the amount of active and reactive power injecting into a grid but also implements other importance stuffs as well. In this paper, negative-sequence current injection has been fulfilled in power electronic interface for two important duties. The first one is for islanding detection, and the other one is to enhance unbalance-fault ride-through ability of dispersed generation. This paper introduces a mechanism of negative-sequence injection based on controlling two separate coordinates of dq control and explains the effective of negative-sequence injection in limiting the unbalanced currents. Using Adaptive Notch Filter as a signal processing unit, negative-sequence components are observed. Control system performance is evaluated based on time domain simulations in PSCAD/EMTDC environment.

Original languageEnglish
Title of host publicationProceedings of the Universities Power Engineering Conference
PublisherIEEE Computer Society
Volume2011-January
EditionJanuary
Publication statusPublished - 2011
Event2011 46th International Universities' Power Engineering Conference, UPEC 2011 - Soest, Germany
Duration: 2011 Sep 52011 Sep 8

Other

Other2011 46th International Universities' Power Engineering Conference, UPEC 2011
CountryGermany
CitySoest
Period11/9/511/9/8

Keywords

  • Dispersed generation
  • Islanding detection
  • Negative-sequence impedance
  • Negative-sequence injection
  • Ride-through

ASJC Scopus subject areas

  • Energy Engineering and Power Technology

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  • Cite this

    Tuyen, N. D., & Fujita, G. (2011). Negative-sequence current injection of dispersed generation for islanding detection and unbalanced fault ride-through. In Proceedings of the Universities Power Engineering Conference (January ed., Vol. 2011-January). [6125495] IEEE Computer Society.