The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Aug. 10, 2004
Filed:
Sep. 19, 2002
Bruno Hofstetter, Oberidessbach, CH;
Ingo Golle, Gebenstorf, CH;
Beat Ronner, Nussbaumen, CH;
Martin Mullis, Zürich, CH;
ABB Schweiz AG, Baden, CH;
Abstract
A power generating device is specified, which comprises a generator ( ), which is coupled to a drive unit, in particular to a turbine, and is connected via a rectifier ( ) to a DC voltage intermediate circuit ( ), an inverter ( ), which is connected to the DC voltage intermediate circuit ( ) and, on the AC voltage output side, has n phases with n AC voltage connections ( ), and a filter arrangement ( ), which is connected to the AC voltage connections ( ). Furthermore, the filter arrangement ( ) has a first filter inductance ( ) and a second filter inductance ( ), which is connected in series with the first, for each AC voltage connection ( ), with a filter capacitor ( ) being connected to the junction point of the first filter inductance ( ) and the second filter inductance ( ), and the filter capacitors ( ) being connected to one another in a star circuit at a star point ( ).