Method and apparatus for improving performance of AC machines

Date
1993-02-23
Authors
John S. Hsu
Herbert H. Woodson
Journal Title
Journal ISSN
Volume Title
Publisher
United States Patent and Trademark Office
Abstract

A method and apparatus for improving the performance of polyphase AC machines. The polyphase AC machines are excited both with a fundamental frequency and with an odd harmonic of the fundamental frequency. The fundamental flux wave and the harmonic flux wave will travel at synchronous speed in the air gap. This facilitates redistributing the flux densities in the machine and thereby increasing the total flux per pole in the machine.

Description
Keywords
Citation