Global Patent Index - EP 1097499 A1

EP 1097499 A1 2001-05-09 - METHOD AND DEVICE FOR LIMITING MAKING CURRENT AND EXCESS POWER FROM AN ALTERNATING-CURRENT INDUCTION GENERATOR

Title (en)

METHOD AND DEVICE FOR LIMITING MAKING CURRENT AND EXCESS POWER FROM AN ALTERNATING-CURRENT INDUCTION GENERATOR

Title (de)

VERFAHREN UND VORRICHTUNG ZUR ÜBERSTROMBEGRENZUNG EINES WECHSELSTROMSYNCHRONGENERATORS

Title (fr)

PROCEDE ET DISPOSITIF LIMITANT LA PRODUCTION DE COURANT ET LA PUISSANCE EXCEDENTAIRE D'UN GENERATEUR DE COURANT ALTERNATIF A INDUCTION

Publication

EP 1097499 A1 (EN)

Application

EP 99911642 A

Priority

  • DK 9900189 W
  • DK 43898 A

Abstract (en)

[origin: WO9950945A1] The invention comprises a technique for limiting the grid-connection current and surplus output of a wind turbine or a similar electricity-generating system for the utilisation of renewable energy where the electrical generator of the system is an alternating-current induction generator. The generator is coupled to the grid by means of a variable, electronically controlled electrical connector of the type based on thyristors whose acceptance angle plus the phase angle of the generator determine the actual degree of connection. The technique in the invention is special in that the generator is loaded with a variable, grid-independent dump-load during the connection process and otherwise during all other operating situations in which the generator yield is higher than desired with respect to grid compatibility. This dump-load is stepwise or continuously controlled within a relatively wide output range.

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

H02J 3/40; H02P 9/48

IPC 8 full level (invention and additional information)

H02J 3/12 (2006.01); H02J 3/14 (2006.01); H02J 3/38 (2006.01); H02J 3/40 (2006.01); H02P 9/00 (2006.01); H02P 9/48 (2006.01)

CPC (invention and additional information)

H02P 9/48 (2013.01); H02J 3/14 (2013.01); H02P 2101/15 (2013.01); Y02B 70/3225 (2013.01); Y04S 20/222 (2013.01)

Citation (search report)

See references of WO 9950945A1

Designated contracting state (EPC)

AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE

EPO simple patent family

WO 9950945 A1 19991007; AU 3025799 A 19991018; DK 174466 B1 20030331; DK 43899 A 19991001; EP 1097499 A1 20010509; JP 2002510951 A 20020409; NO 20004889 A 20000929; NO 20004889 D0 20000929; NO 320903 B1 20060213

INPADOC legal status


2008-03-26 [18D] APPLICATION DEEMED TO BE WITHDRAWN

- Effective date: 20071002

2001-05-09 [17P] REQUEST FOR EXAMINATION FILED

- Effective date: 20001030

2001-05-09 [AK] DESIGNATED CONTRACTING STATES:

- Kind Code of Ref Document: A1

- Designated State(s): AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE