Characteristic and non-characteristic harmonics from windparks

• 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

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)