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:
Feb. 05, 2019
Filed:
May. 09, 2018
Abb Technology Oy, Helsinki, FI;
Andrey Kalygin, Wuerenlingen, CH;
ABB Schweiz AG, Baden, CH;
Abstract
An electrical multi-phase converter and method for controlling an electrical multi-phase converter is disclosed. In one form a method provides for controlling the electrical multi-phase converter comprises: determining at least two supply voltages for the at least two converter cells of the at least two phase branches; determining a potential zone for each phase branch based on the at least one supply voltage of the at least one converter cell of the phase branch, the potential zone bounding a possible actual phase voltage producible by the phase branch; receiving a reference voltage for each phase branch; and, if the reference voltage for a phase branch is not within the potential zone of the phase branch, setting the reference voltage to a bound of the potential zone and shifting reference voltages of other phase branches, wherein the reference voltages are set and shifted such that a minimal common mode voltage between the output voltages of the multi-phase converter is generated.