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:
Aug. 18, 2020
Filed:
Aug. 29, 2017
I-shou University, Kaohsiung, TW;
Rong-Ching Wu, Kaohsiung, TW;
I-SHOU UNIVERSITY, Kaohsiung, TW;
Abstract
A method for estimating parameters of a DC machine by the least-squares method is performed by a computer system. The method includes establishing a transient model of the DC machine; expressing discrete values of the terminal voltage, the armature current and the rotational speed of the DC machine by the polynomial regression after the DC machine is started; obtaining estimated values of an armature resistance, an armature inductance and a back electromotive force constant by the least-squares method; calculating a torque based on the back electromotive force constant and the armature current; obtaining estimated values of a moment of inertia and a viscous friction coefficient by the least-squares method; and outputting the estimated values of the armature resistance, the armature inductance, the back electromotive force constant, the moment of inertia and the viscous friction coefficient. As such, the accuracy and reliability in estimating the parameters of the DC machine can be improved, achieving high computational efficiency and simplifying the operation procedure.