Transformerless distribution voltage restorer using diode-clamped three-level converter

Author

Chankhamrian, Wuthikrai ; Bhumkittipich, Krischonme ; Phankong, Nathabhat

Author_Institution

Dept. of Electr. Technol., Rajamangala Univ. of Technol. Tawan-ok, Chanthaburi, Thailand

fYear

2014

fDate

19-21 March 2014

Firstpage

1

Lastpage

5

Abstract

This paper presents development distribution voltage restorer (DVR) using three-level diode-clamped converter for creating voltage to compensate using power electronics switching device. Converter is controlled the injection voltage by using voltage regulations without transformer connected to the power system. Low-pass filter is used to filter harmonics voltage signal and reduce voltage signal distortion. Simulation and experimental results show the effectiveness of the proposed DVR that the output voltage waveform of three-level diode-clamped converter has a signal distortion less than output voltage waveform of original two-level converter. The experimental results also showed that the DVR can increase the system efficiency and be able to compensate the voltage more than 0.1 second.

Keywords

low-pass filters; power harmonic filters; power supply quality; power system restoration; switching convertors; diode-clamped three-level converter; harmonics voltage signal; injection voltage control; low-pass filter; power electronics switching device; three-level diode-clamped converter; transformerless distribution voltage restorer; voltage regulations; voltage signal distortion; Distribution Voltage Restorer; Three-level Diode-clamped Converter; Voltage Sag;

fLanguage

English

Publisher

ieee

Conference_Titel

Electrical Engineering Congress (iEECON), 2014 International

Conference_Location

Chonburi

Type

conf

DOI

10.1109/iEECON.2014.6925922

Filename

6925922