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:
May. 08, 2018
Filed:
Jul. 17, 2015
Applicant:
Nec Laboratories America, Inc., Princeton, NJ (US);
Inventors:
Feng Guo, Columbus, OH (US);
Ratnesh Sharma, Fremont, CA (US);
Assignee:
NEC Corporation, , JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H02J 7/00 (2006.01); H02M 7/537 (2006.01); H02M 7/483 (2007.01);
U.S. Cl.
CPC ...
H02J 7/0065 (2013.01); H02M 7/483 (2013.01); H02M 7/537 (2013.01); H02M 2007/4835 (2013.01);
Abstract
A modular multilevel converter for hybrid energy storage includes a battery. Three phases are connected in serial to the battery and in parallel to one another, each phase having two arms of sub-modules and buffer inductors. Each of the sub-modules includes a half-bridge and an ultracapacitor. A control module is configured to control the battery output power and ultracapacitor output power independently.