Comparison of different control techniques for grid side VSC in terms of losses and current harmonics

Author

Schroder, Michael ; Gierschner, Sidney ; Eckel, Hans-Gunter

Author_Institution

Inst. of Electr. Power Eng., Univ. of Rostock, Rostock, Germany

fYear

2013

fDate

2-6 Sept. 2013

Firstpage

1

Lastpage

8

Abstract

More and more wind power plants are built which use voltage source converters (VSC) to feed energy into grid. This paper compares two different control techniques and shows how virtual flux direct power control (VFDPC) reduces filtering requirements at the output of the converter and helps to save up to one quarter of converter losses. Furthermore the influence of a reduced, variable dc link voltage of the wind power plant itself and its converter control is discussed.

Keywords

losses; power control; power generation control; power grids; power harmonic filters; power system harmonics; wind power plants; VFDPC; converter loss; current harmonics; filtering requirement; grid side VSC; variable DC link voltage; virtual flux direct power control; voltage source converter; wind power plant; Insulated gate bipolar transistors; Power harmonic filters; Switches; Switching frequency; Vectors; Voltage control; Direct power control; Switching losses; Voltage Source Converter (VSC);

fLanguage

English

Publisher

ieee

Conference_Titel

Power Electronics and Applications (EPE), 2013 15th European Conference on

Conference_Location

Lille

Type

conf

DOI

10.1109/EPE.2013.6631921

Filename

6631921