Frequency adaptive PR-controller for compensation of current harmonics

Author

Uphues, Andreas ; Notzold, Kilian ; Wegener, Ralf ; Soter, Stefan

Author_Institution

Retostronik GmbH, Gevelsberg, Germany

fYear

2014

Firstpage

2103

Lastpage

2108

Abstract

The use of proportional resonant (PR) current controller in grid side wind power converters instead of the traditional proportional integral (PI) controller has gained a large popularity. Particularly its capability for compensating harmonics in the current waveforms is an essential feature. Due to the replacing of the generator side converter by a simple diode rectifier, harmonics with variable frequencies into dependence of the generator frequency appear in the current waveforms. To reach the IEEE standard for the total harmonic distortion (THD) a frequency adaptive PR-controller for compensating these harmonics is required.

Keywords

PI control; electric current control; harmonic distortion; power convertors; power grids; power system harmonics; wind power plants; IEEE standard; PI controller; current harmonics; frequency adaptive PR-controller; generator side converter; grid side wind power converters; proportional integral controller; proportional resonant current controller; total harmonic distortion; Equations; Frequency control; Frequency measurement; Harmonic analysis; Mathematical model; Resonant frequency; Transfer functions; Inverter control; adaptive resonant controller; current harmonic compensation; grid codes; renewable power generation systems; wind power;

fLanguage

English

Publisher

ieee

Conference_Titel

Industrial Electronics Society, IECON 2014 - 40th Annual Conference of the IEEE

Type

conf

DOI

10.1109/IECON.2014.7048792

Filename

7048792