Abstract: Disclosed is a rotating electric machine for generating a constant frequency AC power supply from a variable speed primemover including: a stator wound with two sets of isolated polyphase windings having the same number of poles, with the polyphase windings located at about 90 degree displacement in space between them, and a rotor wound with two sets of isolated polyphase windings having the same number of poles and placed at about 90 degree displacement in space between them. The rotor has two winding terminals interconnected either internally or externally to the machine with mutually reverse phase sequence. When one set of stator winding is energized by an AC power supply of a given frequency and voltage, and the rotor shaft is rotated by an external means in the same direction as that of the rotating field of the stator.
Type:
Grant
Filed:
July 7, 2011
Date of Patent:
November 26, 2013
Inventors:
Nikhil Mondal, Nirmal Kumar Deb, Sujit Kumar Biswas
Abstract: A continuous direct current generator comprises a plurality of windings, each being adapted to rotate between two magnetic fields and in unison with a rotator having a plurality of brush contacts. The windings are electrically connected to the brush contacts which deliver current to a split anode-cathode ring within which the rotator rotates. The windings are connected to the brush contacts so as to deliver substantially continuous direct current to the anode-cathode output.