H - Electricity – 02 – J
Patent
H - Electricity
02
J
H02J 3/26 (2006.01)
Patent
CA 2164309
The invention relates to a method and a device for reducing imbalances (.DELTA.V12, .DELTA.V23, .DELTA.V31) in a three-phase network (42) by means of a static compensator. According to the invention, a correction signal (.DELTA.B12, .DELTA.B23, .DELTA.B31) is in each case superimposed on a mean susceptance value (Bsvc), which is produced, of the static compensator, which correction signals (.DELTA.B12, .DELTA.B23, .DELTA.B31) are in each case proportional to an imbalance (.DELTA.V12, .DELTA.V23, .DELTA.V31), which imbalances are determined from measured line to earth voltages (V01, V02, V03) by comparisons, in pairs, of the determined line to line voltages (V12, V23, V31). Imbalances (.DELTA.V12, .DELTA.V23, .DELTA.V31) in the three-phase network (42) can thus be reduced in a simple manner.
L'invention concerne un procédé et un dispositif permettant de réduire les asymétries ( DELTA 12, DELTA V23, DELTA V31) dans un réseau triphasé (42) au moyen d'un compensateur statique. Selon l'invention, un signal de correction ( DELTA B12, DELTA B23, DELTA B31) proportionnel à une asymétrie ( DELTA V12, DELTA V23, DELTA V31), est superposé à une valeur moyenne de susceptance (BSVC) du compensateur statique, chaque asymétrie de tension étant déterminée par comparaison par paires des tensions conducteur-conducteur (V12, V23, V31) résultant des tensions conducteur-terre (V01, V02, V03) mesurées. Ce procédé permet ainsi de réduire aisément les asymétries ( DELTA V12, DELTA V23, DELTA V31) d'un réseau triphasé (42).
Aktiengesellschaft Siemens
Fetherstonhaugh & Co.
LandOfFree
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