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:
Jul. 19, 2011
Filed:
Oct. 07, 2010
Zhuohui Tan, Shanghai, CN;
Xiaoming Yuan, Shanghai, CN;
Changyong Wang, Shanghai, CN;
Ronghai Qu, Clifton Park, NY (US);
Robert William Delmerico, Clifton Park, NY (US);
Patrick Lee Jansen, Scotia, NY (US);
Zhuohui Tan, Shanghai, CN;
Xiaoming Yuan, Shanghai, CN;
Changyong Wang, Shanghai, CN;
Ronghai Qu, Clifton Park, NY (US);
Robert William Delmerico, Clifton Park, NY (US);
Patrick Lee Jansen, Scotia, NY (US);
General Electric Company, Niskayuna, NY (US);
Abstract
A system for controlling torque ripple in a permanent magnet synchronous machine includes a power converter configured to be coupled to the permanent magnet synchronous machine and to receive converter control signals and a system controller coupled to the power converter. The system controller includes a fundamental current controller configured for providing fundamental voltage commands, a harmonic current controller configured for using harmonic current commands, current feedback signals from the permanent magnet machine, and fundamental current commands in combination with positive and negative sequence regulators to obtain harmonic voltage commands, and summation elements configured for adding the fundamental voltage commands and the harmonic voltage commands to obtain the converter control signals.