Rotating induction apparatus
AssigneeBorealis Technical Limited
InventorJonathan Sidney Edelson
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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.
Claims16
An electrical rotating apparatus comprising:
- an inverter system that outputs a number of phases, wherein said number of phases is more than three, said inverter system comprising a number of half bridge inverters equal to said number of phases;
- a stator comprising a plurality of slots and full span concentrated windings, wherein said windings are electrically coupled to said inverter system, wherein half of said windings are driven and the other half of said windings are connected to a star point;
- a rotor electromagnetically coupled to a magnetic field generated by said stator;
- and
- whereby said driven windings are arranged in at least one set of an odd integer number of windings, wherein said odd integer number of windings is the largest odd integer that divides into said number of phases evenly and divides into 360 evenly.
Dependencies are inferred from the claim text.