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:
Sep. 25, 2018
Filed:
Sep. 21, 2015
Applicant:
Abb Schweiz Ag, Baden, CH;
Inventor:
Tomas Jonsson, Norrköping, SE;
Assignee:
ABB SCHWEIZ AG, Baden, CH;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H02H 7/125 (2006.01); H02M 7/10 (2006.01); H02M 7/04 (2006.01); H02M 5/42 (2006.01); H02M 7/68 (2006.01); H02M 7/155 (2006.01); H02M 1/32 (2007.01); H02M 7/483 (2007.01); H02J 3/36 (2006.01); H02M 7/5387 (2007.01); H02M 7/219 (2006.01);
U.S. Cl.
CPC ...
H02M 1/32 (2013.01); H02J 3/36 (2013.01); H02M 7/219 (2013.01); H02M 7/483 (2013.01); H02M 7/53871 (2013.01); H02M 2007/4835 (2013.01);
Abstract
A multilevel converter includes a first and a second converter block series-connected between two DC terminals and a chopper circuit between the blocks. Each block includes a number of valve arm strings, each including an upper and a lower valve arm and a number of converter cells. A midpoint between the upper and lower arm of a string of the first block is connected to a corresponding primary AC terminal and a midpoint between the upper and lower arm of a corresponding string of the second block is connected to a corresponding secondary AC terminal. The chopper circuit comprises a power dissipating element in parallel with a circuit breaker.