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:
Dec. 13, 2016
Filed:
Jan. 09, 2014
Kai Tian, Toronto, CA;
Zhongyuan Cheng, Cambridge, CA;
Bin Wu, Toronto, CA;
David Dewei Xu, Pickering, CA;
Kai Tian, Toronto, CA;
Zhongyuan Cheng, Cambridge, CA;
Bin Wu, Toronto, CA;
David Dewei Xu, Pickering, CA;
Rockwell Automation Technologies, Inc., Mayfield Heights, OH (US);
Abstract
Multilevel converters and space vector modulation operating methods are presented in which fewer than all possible switching states are employed for space vector modulation of rectifier and inverter circuits to promote common mode voltage contribution cancellation or reduction therebetween and by using subsets of possible space vector modulation switching states associated with minimal positive or negative common mode voltages and in some cases using virtual vectors which have zero common mode voltages to eliminate the 3rd order harmonic components in common mode voltage as well as to reduce common mode voltage affects associated with multilevel inverter stages.