Feasibility of HVDC for Very Weak AC Systems with SCR below 1.5

Author

Gonzalez, Jorge Wilson ; Weindl, Christian ; Herold, Gerhard ; Retzmann, Dietmar ; Cardona, Hugo A. ; Isaac, Idi A. ; Lopez, Gabriel J.

Author_Institution

Univ. Pontificia Bolivariana-Antioquia

fYear

2006

fDate

Aug. 30 2006-Sept. 1 2006

Firstpage

1522

Lastpage

1527

Abstract

This paper exposes the feasibility to connect high voltage DC transmission (HVDC) systems to very weak AC networks leading to short circuit ratios (SCR) lower than 1.5. The existing literature does not provide solutions for such a low SCR systems and often the HVDC expansions cannot grow enough as expected. The studies developed are for the short-term voltage stability phenomena, where a solution using the PSCAD/EMTDC program for a very weak AC network with SCR=1.0 is presented. The reactive power characteristics are shown since they are important to judge the behavior of solutions for AC/DC interactions

Keywords

HVDC power transmission; power system CAD; power system stability; reactive power; AC networks; HVDC; PSCAD-EMTDC program; SCR; high voltage DC transmission system; reactive power characteristics; short circuit ratios; short-term voltage stability; Automatic voltage control; Circuit stability; EMTDC; HVDC transmission; Lead; PSCAD; Reactive power; Stability analysis; Static VAr compensators; Thyristors;

fLanguage

English

Publisher

ieee

Conference_Titel

Power Electronics and Motion Control Conference, 2006. EPE-PEMC 2006. 12th International

Conference_Location

Portoroz

Print_ISBN

1-4244-0121-6

Type

conf

DOI

10.1109/EPEPEMC.2006.4778619

Filename

4778619