Global Patent Index - EP 1012946 A1

EP 1012946 A1 2000-06-28 - METHOD AND DEVICE FOR IMPROVING THE QUALITY OF VOLTAGE OF A SECONDARY SUPPLY UNIT

Title (en)

METHOD AND DEVICE FOR IMPROVING THE QUALITY OF VOLTAGE OF A SECONDARY SUPPLY UNIT

Title (de)

VERFAHREN UND VORRICHTUNG ZUR VERBESSERUNG DER SPANNUNGSQUALITÄT EINES UNTERLAGERTEN NETZTEILES

Title (fr)

PROCEDE ET DISPOSITIF POUR AMELIORER LA QUALITE DE LA TENSION D'UNE PARTIE DE RESEAU SOUS-JACENTE

Publication

EP 1012946 A1 (DE)

Application

EP 98948807 A

Priority

  • DE 9802388 W
  • DE 19737590 A

Abstract (en)

[origin: DE19737590C1] The invention relates to a method and a device for improving the quality of voltage of a secondary supply unit (16) by means of a compensation device (2) with a pulsed converter (4). Said pulsed converter is serial-linked into a transmission line (12) by means of a coupling transformer (10). According to the invention, positive- and negative-sequence deviations (uD,1+/-) are determined and are used to produce a basic transmission ratio space vector (üb). This space vector (b) is then used to generate control signals (S nu ) for the pulsed converter (4), using the intermediate circuit voltage (Vdc) of said pulsed converter (4), so that a compensator voltage (uK) can be serial-linked into the transmission line (12). The invention hereby provides a means of generating a supply voltage (uN) of an ideal supply system (14) from a distorted supply voltage (uN) for a secondary supply unit (16).

IPC 1-7 (main, further and additional classification)

H02J 3/18

IPC 8 full level (invention and additional information)

G05F 1/70 (2006.01); H02J 3/18 (2006.01)

CPC (invention and additional information)

H02J 3/18 (2013.01); H02J 3/1814 (2013.01); Y02E 40/18 (2013.01); Y02E 40/30 (2013.01)

Citation (search report)

See references of WO 9912242A1

Designated contracting state (EPC)

AT CH DE ES FR GB IT LI SE

EPO simple patent family

DE 19737590 C1 19981022; CA 2302344 A1 19990311; CN 1276096 A 20001206; EP 1012946 A1 20000628; JP 2001515338 A 20010918; NO 20001006 A 20000228; NO 20001006 D0 20000228; NO 320726 B1 20060123; US 6348778 B1 20020219; WO 9912242 A1 19990311; ZA 9807727 B 19990301

INPADOC legal status


2003-01-29 [18R] REFUSED

- Effective date: 20020910

2002-02-27 [17Q] FIRST EXAMINATION REPORT

- Effective date: 20020114

2000-06-28 [17P] REQUEST FOR EXAMINATION FILED

- Effective date: 20000218

2000-06-28 [AK] DESIGNATED CONTRACTING STATES:

- Kind Code of Ref Document: A1

- Designated State(s): AT CH DE ES FR GB IT LI SE