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. 04, 2010
Filed:
Oct. 23, 2007
Sho Sato, Yokohama, JP;
Kantaro Yoshimoto, Yokohama, JP;
Kengo Maikawa, Yokosuka, JP;
Yuki Nakajima, Yokohama, JP;
Sho Sato, Yokohama, JP;
Kantaro Yoshimoto, Yokohama, JP;
Kengo Maikawa, Yokosuka, JP;
Yuki Nakajima, Yokohama, JP;
Nissan Motor Co., Ltd., Yokohama, JP;
Abstract
A power conversion system includes first and second voltage sources for driving a multiple-phase AC motor and a control unit. The control unit is configured to compute first and second output voltage command values used to drive the multiple-phase AC motor based on a first output voltage command vector corresponding to the voltage source that is charged and a second output voltage command vector corresponding to the voltage source that is discharged. The first and second output voltage command vectors are determined so that a resultant vector of the first and second output voltage command vectors is coincident with a motor voltage command vector corresponding to a motor voltage command value, and a motor current command vector corresponding to the motor current command value is positioned within an included angle formed between the second output voltage command vector and a negative vector of the first output voltage command vector.