Automatic mechanical fault assessment of small wind energy systems in microgrids using electric signature analysis

Georgios Alexandros Skrimpas, Kun Saptohartyadi Marhadi, Bogi Bech Jensen

Research output: Chapter in Book/Report/Conference proceedingArticle in proceedingsResearchpeer-review

Abstract

A microgrid is a cluster of power generation, consumption and storage systems capable of operating either independently or as part of a macrogrid. The mechanical condition of the power production units, such as the small wind turbines, is considered of crucial importance especially in the case of islanded operation. In this paper, the fault assessment is achieved efficiently and consistently via electric signature analysis (ESA). In ESA the fault related frequency components are manifested as sidebands of the existing current and voltage time harmonics. The energy content between the fundamental, 5th and 7th harmonics (referred as residual value - RV) is measured and sent to the central microgrid controller. The controller compares RV to three predefined limits where inspection, maintenance and shut down of the turbine are the corresponding actions. The method is tested based on a finite element model where dynamic eccentricity and bearing outer race defect are simulated under varying fault severity and electric loading conditions.
Original languageEnglish
Title of host publication2013 4th IEEE PES Innovative Smart Grid Technologies Europe (ISGT Europe)
Number of pages5
PublisherIEEE
Publication date2013
ISBN (Print)978-1-4799-2984-9
DOIs
Publication statusPublished - 2013
Event2013 4th IEEE PES Innovative Smart Grid Technologies Europe - Technical University of Denmark (DTU), Lyngby, Denmark
Duration: 6 Oct 20139 Oct 2013
Conference number: 4
http://www.ieee-isgt-2013.eu/

Conference

Conference2013 4th IEEE PES Innovative Smart Grid Technologies Europe
Number4
LocationTechnical University of Denmark (DTU)
CountryDenmark
CityLyngby
Period06/10/201309/10/2013
Internet address

Keywords

  • Power, Energy and Industry Applications

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