Compensation of voltage sag and harmonics by dynamic voltage restorer without zero sequence blocking

Author

Rajasekaran, D. ; Dash, S.S. ; Bhaskar, M. Arun ; Subramani, C. ; Kumar, M. Jagadeesh ; Kumar, K. Suresh

Author_Institution

Dept. of Electr. & Electron. Eng., R.M.D. Eng. Coll., Chennai, India

Volume

4

fYear

2011

fDate

8-10 April 2011

Firstpage

24

Lastpage

27

Abstract

Amic Voltage Restorer (DVR) is a power electronic device to protect sensitive loads from voltage sag. Commonly, sensitive loads are electronic-based devices which generate harmonics. This paper presents fuzzy polar based DVR as voltage sag restorer and harmonics compensator without zero sequence blocking. Research presented in this paper uses d-q-0 axis method considering of the value of neutral axis, because the method works very well if the neutral axis value is zero. Result shows that this method can compensate voltage sag with a compensation error of 0.99%. Using this method, DVR may reduce voltage THD from 10.22% to 0.66%.

Keywords

distribution networks; fuzzy control; power electronics; power supply quality; power system harmonics; dynamic voltage restorer; electronic-based devices; fuzzy logic controller; fuzzy polar based DVR; fuzzy polar controller; harmonics compensator; low voltage distribution system; power electronic device; voltage sag compensation; Harmonic analysis; Mathematical model; Power system dynamics; Power system harmonics; Voltage control; Voltage fluctuations; Voltage measurement; DVR — Voltage sag — Harmonics;

fLanguage

English

Publisher

ieee

Conference_Titel

Electronics Computer Technology (ICECT), 2011 3rd International Conference on

Conference_Location

Kanyakumari

Print_ISBN

978-1-4244-8678-6

Electronic_ISBN

978-1-4244-8679-3

Type

conf

DOI

10.1109/ICECTECH.2011.5941849

Filename

5941849