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, 2022
Filed:
Nov. 30, 2020
Abb Schweiz Ag, Baden, CH;
Panagiotis Kakosimos, Västerås, SE;
Rahul Kanchan, Västerås, SE;
ABB Schweiz AG, Baden, CH;
Abstract
A method of controlling a 3n-phase electrical machine () by means of n power converters () each being controlled by a respective controller, and each power converter () being configured to power a respective set of three phases of the electrical machine (), wherein the method for each controller comprises: a) obtaining measured currents (ia,, ib,, ic,, ia,, ib,, ic,) of the set of three phases of the electrical machine () controlled by the controller, b) estimating all currents ({circumflex over (ι)}dq,, {circumflex over (ι)}dq,) of all the other sets of three phases of the electrical machine (), which are controlled by the other controllers, c) transforming the measured currents (ia,, ib,, ic,, ia,, ib,, ic,) and all the estimated currents ({circumflex over (ι)}dq,, {circumflex over (ι)}dq,) using vector space decomposition, VSD, to obtain a set of VSD currents, and d) controlling the corresponding power converter based on the VSD currents.