Specific energy concept applied to the voltage sag ride-through capability of sensitive equipment in DG embedded systems

Author

Gómez, J.C. ; Morcos, M.M.

Author_Institution

Electr. Power Syst. Protection Inst., Rio Cuarto Nat. Univ., Argentina

Volume

18

Issue

4

fYear

2003

Firstpage

1590

Lastpage

1591

Abstract

A simple distribution system is presented where the effect of distributed generation (DG) presence is analyzed. The concept of specific energy for voltage sag immunity of sensitive equipment under the new scenario created by DG is applied. A short guide for the improvement of the protection/voltage sag coordination is presented through considering overcurrent device location, DG connection point, supply/DG impedance ratio, supply and DG protective device speeds, and protection selectivity/power quality tradeoff.

Keywords

distributed power generation; distribution networks; electric fuses; overcurrent protection; power distribution protection; distributed generation; distributed resources; distribution system; embedded systems; fuses; impedance ratio; overcurrent device location; power quality; power quality tradeoff; protection coordination; protection selectivity; radial system; sensitive equipment; specific energy concept; voltage sag; voltage sag coordination; voltage sag immunity; voltage sag ride-through capability; Circuit breakers; Circuit faults; Distributed control; Embedded system; Fuses; Impedance; Power quality; Power system protection; Power system stability; Voltage fluctuations;

fLanguage

English

Journal_Title

Power Delivery, IEEE Transactions on

Publisher

ieee

ISSN

0885-8977

Type

jour

DOI

10.1109/TPWRD.2003.817534

Filename

1234730