Transformer based voltage sag generator to perform LVRT and HVRT tests in the laboratory

Author

Wessels, C. ; Lohde, R. ; Fuchs, F.W.

Author_Institution

Inst. of Power Electron. & Electr. Drives, Christian-Albrechts-Univ. of Kiel, Kiel, Germany

fYear

2010

fDate

6-8 Sept. 2010

Abstract

A transformer based voltage sag generator to test renewable energy systems is presented. Design considerations concerning overvoltages and overcurrents during switching action are addressed. Measurement results of a 30 kW laboratory prototype testing a line side PWM converter and a DFIG are presented. Both measurement results for investigations on the transformer based sag generator at the line side converter and the DFIG show the superb functionality of the sag generator. Voltage dips of variable magnitude, duration time and fault type can be generated to perform certification of LVRT capability. The device is also able to perform HVRT tests.

Keywords

asynchronous generators; overvoltage; power convertors; power supply quality; power transformers; DFIG; HVRT tests; LVRT tests; doubly fed induction generator; line side PWM converter; power 30 kW; renewable energy systems; transformer based voltage sag generator; Converters; Generators; Impedance; Laboratories; Switches; Voltage control; Voltage fluctuations; ≪Grid codes≫; ≪HVRT≫; ≪LVRT≫; ≪Voltage sag generator≫;

fLanguage

English

Publisher

ieee

Conference_Titel

Power Electronics and Motion Control Conference (EPE/PEMC), 2010 14th International

Conference_Location

Ohrid

Print_ISBN

978-1-4244-7856-9

Type

conf

DOI

10.1109/EPEPEMC.2010.5606830

Filename

5606830