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:
Jul. 10, 2001
Filed:
May. 16, 2000
Applicant:
Inventors:
Olle Ekwall, Ludvika, SE;
Ingemar Blidberg, Ludvika, SE;
Björn Jacobson, Grängesberg, SE;
Bo Bijlenga, Skultuna, SE;
Henrik Spjuth, Ludvika, SE;
Assignee:
ABB AB, Vasteras, SE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H02M 7/5387 ;
U.S. Cl.
CPC ...
H02M 7/5387 ;
Abstract
In a VSC-converter for converting direct voltage to alternating voltage and conversely at least one phase leg (,) is arranged according to a NPC-connection. At least two of the four current valves (,) and the clamping rectifying members (,) thereof are arranged close to each other and so that commutation currents generated on commutation of the converter therein will flow in substantially opposite directions.