The impact of harmonics calculation methods on power quality assessment in wind farms

Author

Kocewiak, Lukasz Hubert ; Hjerrild, Jesper ; Bak, Claus Leth

Author_Institution

DONG Energy Power A/S, Fredericia, Denmark

fYear

2010

fDate

26-29 Sept. 2010

Firstpage

1

Lastpage

9

Abstract

Different methods of calculating harmonics in measurements obtained from offshore wind farms are shown in this paper. Appropriate data processing methods are suggested for harmonics with different origin and nature. Enhancements of discrete Fourier transform application in order to reduce measurement data processing errors are proposed and compared with classical methods. Comparison of signal processing methods for harmonic studies is presented and application dependent on harmonics origin and nature recommended. Certain aspects related to magnitude and phase calculation in stationary measurement data are analysed and described. Qualitative indices of measurement data harmonic analysis in order to assess the calculation accuracy are suggested and used.

Keywords

data analysis; discrete Fourier transforms; harmonic analysis; offshore installations; power supply quality; signal processing; wind power plants; data processing methods; discrete Fourier transform; harmonics calculation methods; measurement data harmonic analysis; measurement data processing error reduction; offshore wind farms; power quality assessment; qualitative indices; signal processing methods; stationary measurement data; Frequency measurement; Harmonic analysis; Power harmonic filters; Power quality; Time series analysis; harmonic assessment; harmonic calculation; offshore wind farms; stationary signal processing;

fLanguage

English

Publisher

ieee

Conference_Titel

Harmonics and Quality of Power (ICHQP), 2010 14th International Conference on

Conference_Location

Bergamo

Print_ISBN

978-1-4244-7244-4

Electronic_ISBN

978-1-4244-7245-1

Type

conf

DOI

10.1109/ICHQP.2010.5625468

Filename

5625468