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:
Mar. 01, 2016
Filed:
Nov. 27, 2012
Applicant:
Abb Technology Ltd, Zürich, CH;
Inventor:
Arman Hassanpoor, Ludvika, SE;
Assignee:
ABB Technology Ltd, Zurich, CH;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H02M 7/06 (2006.01); H02M 7/483 (2007.01); H02M 7/217 (2006.01);
U.S. Cl.
CPC ...
H02M 7/06 (2013.01); H02M 7/217 (2013.01); H02M 7/483 (2013.01); H02M 2007/4835 (2013.01);
Abstract
A method and computer program product are provided for selecting switching cells for voltage contribution in a phase arm of a multilevel converter, a cell selecting control device for a multilevel converter and a multilevel converter. The cell selecting control device and multilevel converter includes a balancing control element that obtains a reference voltage for the phase arm, obtains a measurement of the current running through the phase arm and selects cells for contributing to an AC voltage output from the multilevel converter based on the reference voltage and the magnitude of the phase arm current.