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:
Mar. 15, 2016
Filed:
Mar. 18, 2014
Applicant:
Sky Windpower Corporation, San Rafael, CA (US);
Inventors:
Patrick J. McCleer, Holland, MI (US);
Richard K. Mains, Grass Lake, MI (US);
Assignee:
SKY WINDPOWER CORPORATION, Oroville, CA (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H02P 6/14 (2006.01); H02P 27/06 (2006.01); H02P 6/18 (2006.01); H02P 6/20 (2006.01); H02P 25/02 (2006.01);
U.S. Cl.
CPC ...
H02P 27/06 (2013.01); H02P 6/181 (2013.01); H02P 6/205 (2013.01); H02P 25/023 (2013.01);
Abstract
A system and method for determining rotor shaft position of high voltage permanent magnet AC synchronous machines using auxiliary windings utilizes a permanent magnet AC synchronous motor including a stator having a main set of coils and an auxiliary set of coils. A drive controller including a digital signal processor in communication with the motor utilizes a current and voltage measurements from the main and auxiliary coils to determine the position of the rotor shaft in a sensorless mode.