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:
Sep. 28, 2010
Filed:
Feb. 02, 2008
Commutation method and apparatus for a dc to ac inverter driving a three-phase asynchronous ac motor
Sergey Antonov, Toronto, CA;
Alexei I Antonov, Toronto, CA;
Sergey Antonov, Toronto, CA;
Alexei I Antonov, Toronto, CA;
Abstract
Present invention belongs to the field of inventers, motor controllers and pulse modulated waveform generation methods and circuits. More specifically it belongs to such methods and circuits utilizing fundamental vectors. This invention features better and more efficient fundamental vectors. The proposed method offers reduced losses, increased efficiency and longer life time of inverters and motor controllers. Better approximation of a three-phase voltage waveform approaching the ideal one is a significant advantage of the proposed method. Another advantage is an easy decomposition of any point of an ideal sinusoidal voltage waveform into the fundamental vectors. This invention is particularly useful for a vector control of asynchronous AC motors.