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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.:

US 9683540 B1

PDFFull Text
Date of Patent:
Jun. 20, 2017

Filed:

Mar. 11, 2013

Electric unit for a pumped-storage power plant having components within and outside of an underground cavern

Applicant:

Abb Technology Ag, Zürich, CH;

Inventors:

Friedrich Winkler, Olten, CH;

Georg Traxler-Samek, Hallwil, CH;

Stefan Linder, Zofingen, CH;

Assignee:

ABB Schweiz AG, Baden, CH;

Attorney:

Taft Stettinius & Hollister LLP

Primary Examiner:

Tulsidas C Patel

Assistant Examiner:

S Mikailoff

Int. Cl.
CPC ...
F03B 13/06 (2006.01); H02M 7/483 (2007.01); H02J 3/36 (2006.01); H02K 7/18 (2006.01); F01D 19/00 (2006.01); H02P 27/14 (2006.01); H02H 7/04 (2006.01); H02P 1/52 (2006.01); H02J 3/42 (2006.01); H02P 9/00 (2006.01); H02P 25/022 (2016.01); H02H 3/02 (2006.01); H02P 9/04 (2006.01); H02P 9/08 (2006.01); H02P 25/024 (2016.01);
U.S. Cl.
CPC ...
F03B 13/06 (2013.01); F01D 19/00 (2013.01); H02J 3/36 (2013.01); H02K 7/1807 (2013.01); H02M 7/483 (2013.01); H02H 3/02 (2013.01); H02H 7/04 (2013.01); H02J 3/42 (2013.01); H02P 1/52 (2013.01); H02P 9/00 (2013.01); H02P 9/04 (2013.01); H02P 9/08 (2013.01); H02P 25/022 (2013.01); H02P 25/024 (2016.02); H02P 27/14 (2013.01); Y02E 60/17 (2013.01); Y02P 80/116 (2015.11);
Abstract

A pumped-storage power plant, such as an electric unit can include a frequency converter and a rotating electric synchronous machine, the machine being provided in a cavern. The frequency converter can include at least two elements which can be used as inverters or as rectifiers according to the operating mode of the machine, for example during the operation of the motor or during the operation of the generator. The machine-side element can be provided within the cavern, and the network-side element can be provided outside of the cavern.

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