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:
Feb. 09, 2016
Filed:
Dec. 11, 2012
Meidensha Corporation, Tokyo, JP;
Shizunori Hamada, Numazu, JP;
Toshimichi Takahashi, Ota, JP;
MEIDENSHA CORPORATION, Tokyo, JP;
Abstract
To perform an anti-windup control without interference with a cross current compensating function even in case of voltage saturation. There is provided a feedback value calculating section to calculate an average of voltage commands V_cmd, V_cmd after output limitation, as a feedback value. As a deviation used for an integral calculation of a current control section, a sum obtained by adding a product to a deviation between a current command value Id_cmd, Iq_cmd and a current detection value Id_det, Iq_det is used. The product is a quantity obtained by multiplying a saturation quantity by a feedback gain Kfb. The saturation quantity is a saturation quantity of an operation quantity limited by a voltage command limiting section, and the saturation quantity is a deviation or difference between a feedback value V_fb (Vd_fb, Vq_fb) and the voltage command Vd_cmd.