Design of shunt-connected dynamic voltage restorers

Author

Viktorin, O. ; Ghijselen, J. ; Driesen, Johan ; Belmans, Ronnie

Author_Institution

Dept. of Electr. Eng., Katholieke Univ., Leuven, Belgium

fYear

2004

fDate

12-15 Sept. 2004

Firstpage

343

Lastpage

347

Abstract

This paper deals with the design and analysis of dynamic voltage restorers (DVR) based on shunt-connected inverters and grid decoupling reactors. The primary task of these devices is to keep the voltage level sufficiently high during voltage dips and outages. A shunt-connected, four-wire capacitor midpoint type converter topology acting as a voltage source is considered. In order to limit the current between two parallel voltage sources with unequal voltages, the AC grid is decoupled by an additional line inductor. The proposed topologies and driving algorithms of the DVR are verified by simulations in an advanced software package, namely PSCAD/EMTDC.

Keywords

active filters; invertors; power capacitors; power filters; power semiconductor devices; power supply quality; power system CAD; power system simulation; AC grid; PSCAD/EMTDC; active filter; converter topology; grid decoupling reactors; line inductor; power semiconductor devices; power system simulation; shunt-connected dynamic voltage restorers; shunt-connected four-wire capacitor; shunt-connected inverters; software package; voltage dips; Capacitors; Home appliances; Impedance; Inductors; Inverters; Power harmonic filters; Power quality; Software algorithms; Topology; Voltage fluctuations;

fLanguage

English

Publisher

ieee

Conference_Titel

Harmonics and Quality of Power, 2004. 11th International Conference on

Print_ISBN

0-7803-8746-5

Type

conf

DOI

10.1109/ICHQP.2004.1409379

Filename

1409379