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:
Nov. 25, 2014
Filed:
Jul. 27, 2012
Applicants:
Shu Yu Cao, Singapore, SG;
Bing LI, Singapore, SG;
Anshuman Tripathi, Singapore, SG;
Inventors:
Assignee:
Vestas Wind Systems A/S, Aarhus N., DK;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H02P 6/18 (2006.01);
U.S. Cl.
CPC ...
Abstract
A position sensorless control methodology for an electrical machine is provided. In particular, one aspect provides a method for position sensorless operation of an electrical machine using direct position error computation from stator flux observation results and stator current measurement.