Characteristic and non-characteristic harmonics from windparks

This paper presents measurements of harmonic current emissions up till 2 kHz from four different windparks in northern Sweden, all equipped with modern power-electronics converters. A study of the four windparks was performed interms of 95% value of harmonic current spectrum and the minimum fault-le...

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Bibliographic Details
Main Authors: Yang, Kai, Bollen, Math, Wahlberg, Mats
Format: Conference Object
Language:English
Published: Luleå tekniska universitet, Energivetenskap 2011
Subjects:
Other Electrical Engineering
Electronic Engineering
Information Engineering
Annan elektroteknik och elektronik
Energy Engineering
Energiteknik
Northern Sweden
Online Access:http://urn.kb.se/resolve?urn=urn:nbn:se:ltu:diva-32484
Description
Summary:This paper presents measurements of harmonic current emissions up till 2 kHz from four different windparks in northern Sweden, all equipped with modern power-electronics converters. A study of the four windparks was performed interms of 95% value of harmonic current spectrum and the minimum fault-level needed to fulfil the EN 50160 requirements on voltage distortion. The results show that there exists different dominating harmonics and fault-level requirements for different windturbines. Each turbine however shows a broadband component with superimposed narrowband components. The impact on the grid, with reference to permissible levels of voltage distortion, is biggest for the interharmonic components. Validerad; 2011; 20110818 (andbra)

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