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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.:

US 9294029 B1

PDFFull Text
Date of Patent:
Mar. 22, 2016

Filed:

Feb. 21, 2012

Method and apparatus for estimating rotor angle and rotor speed of synchronous reluctance motor at start-up

Applicant:

Matti Veijanen, Espoo, FI;

Inventor:

Matti Veijanen, Espoo, FI;

Assignee:

ABB TECHNOLOGY OY, Helsinki, FI;

Attorney:

Buchanan Ingersoll & Rooney PC

Primary Examiner:

Bentsu Ro

Assistant Examiner:

Zemenay Truneh

Int. Cl.
CPC ...
H02P 6/06 (2006.01); H02P 1/00 (2006.01); G05B 11/36 (2006.01); H02P 21/13 (2006.01); H02P 21/00 (2006.01); H02P 21/14 (2006.01);
U.S. Cl.
CPC ...
H02P 21/13 (2013.01); H02P 21/0046 (2013.01); H02P 21/141 (2013.01); H02P 21/146 (2013.01);
Abstract

A method of estimating a rotor angle of a synchronous reluctance motor, which includes a stator and a rotor. First, a stator flux and a stator current are determined. Two orthogonal stator flux components in a stator reference frame are calculated from the stator flux. Two orthogonal stator current components in the stator reference frame are calculated from the stator current. A rotor orientation vector is then calculated using a known rotor direct or quadrature axis inductance component, the stator flux components, and the stator current components. The rotor orientation is estimated on the basis of the rotor orientation vector.

Find Patent Forward Citations

Veijanen, Matti. (2016). Method and apparatus for estimating rotor angle and rotor speed of synchronous reluctance motor at start-up (U.S. Patent No. 9294029). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/9294029

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

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