NINE PHASE INDUCTION MOTOR STARTER/ALTERNATOR

摘要

An electrical induction motor may include nine terminals configured to receive nine current inputs from nine output phases of a nine phase inverter. The motor may include nine windings connected to the nine terminals, and a plurality of contactors, wherein each of the plurality of contactors may be selectively opened or closed in a circuit including the nine windings to selectively connect the windings together in one of a mesh configuration or a star configuration. Each of the windings may be selectively connected between two of the nine current inputs, with a phase angle difference between the two current inputs of 40 degrees. Each of the contactors may be selectively opened or closed to establish a span value for the mesh configuration of two, with two being the number of inverter output phases between a terminal of one of the nine windings and a terminal of another of the nine windings connected to the one of the nine windings. The motor may selectively receive a first one of the harmonics of a drive waveform generated by the nine phase inverter and a second, different one of the harmonics of the drive waveform generated by the nine phase inverter.

主权项

1. An electrical induction motor, comprising:
nine separate terminals configured to receive nine separate current inputs from nine output phases of a nine phase inverter; nine windings connected to the nine separate terminals; a plurality of contactors, each of the plurality of contactors being configured to be selectively opened or closed in a circuit including the nine windings to selectively connect the nine windings together in one of a mesh configuration or a star configuration; each of the nine windings being configured to be selectively connected between two of the nine separate current inputs, with a phase angle difference between the two separate current inputs of 40 degrees; each of the plurality of contactors being further configured to be selectively opened or closed to establish a span value for the mesh configuration of two, with two being the number of inverter output phases between a terminal of one of the nine windings and a terminal of another of the nine windings connected to the one of the nine windings; and the motor being further configured to selectively receive a first one of the harmonics of a drive waveform generated by the nine phase inverter and a second, different one of the harmonics of the drive waveform generated by the nine phase inverter.