Rotating induction apparatus

Abstract

An electrical rotating apparatus comprises an inverter system that outputs more than three phases. The apparatus further includes a stator comprising a plurality of slots and full span concentrated windings, with the windings being electrically coupled to the inverter system, and a rotor electromagnetically coupled to a magnetic field generated by the stator. A signal generator generates a drive waveform signal, that has a fundamental frequency, and the drive waveform signal drives the inverter system. The drive waveform signal has a pulsing frequency and is in fixed phase relation to the fundamental frequency. Additionally, the inverter system may be fed by a drive waveform signal that is fed through at least one signal delay device.

1 . An electrical rotating apparatus comprising: 
 an amplifier that generates an alternating current having twelve phases or greater;    a stator comprising a plurality of slots and full span concentrated windings, wherein said windings are electrically coupled to said amplifier; and    a rotor electromagnetically coupled to a magnetic field generated by said stator.    
     
     
         2 . The electrical rotating apparatus of  claim 1 , wherein said alternating current has eighteen or more phases.  
     
     
         3 . The electrical rotating apparatus of said  claim 1 , wherein said apparatus is operated in a non-linear region of a saturation curve of said stator.  
     
     
         4 . The electrical rotating apparatus of said  claim 1 , wherein said apparatus is operated at densities greater than 130,000 lines per square inch (2.02 Tesla).  
     
     
         5 . The electrical rotating apparatus of said  claim 1 , wherein said apparatus is operated at densities greater than 150,000 lines per square inch (2.33 Tesla).  
     
     
         6 . The electrical rotating apparatus of  claim 1 , wherein said stator comprises eighteen driven windings arranged in the following electrical angles: 0°, 120°, 240°, 10°, 130°, 250°, 40°, 160°, 280°, 50°, 170°, 290°, 80°, 200°, 320°, 90°, 210°, and 330°.  
     
     
         7 . The electrical rotating apparatus of said  claim 1 , wherein said stator is coupled directly to said amplifier.