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:
May. 05, 2015
Filed:
Jun. 27, 2012
Applicants:
Michael Ian Peter Henderson, Leeds, GB;
Joseph Gerald Marcinkiewicz, St. Peters, MO (US);
Inventors:
Michael Ian Peter Henderson, Leeds, GB;
Joseph Gerald Marcinkiewicz, St. Peters, MO (US);
Assignee:
Nidec SR Drives, Ltd., Harrowgate, North Yorkshire, GB;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H02P 6/10 (2006.01); H02P 21/00 (2006.01); H02P 21/14 (2006.01);
U.S. Cl.
CPC ...
H02P 6/10 (2013.01);
Abstract
In an electrical machine which has time-varying or position-varying disturbances in its output, signals representing the position and values of machine-related parameters are used to solve a model of the machine to calculate the phase currents which are required to minimize the disturbances. The model is able to provide solutions in the presence of limitations of some of the operating conditions of the machine, for example the supply voltage or the error in the signal representing the position.