MODULATION SCHEME FOR MULTIPHASE MACHINES

摘要

An electrical power system for a six-phase electric motor having a first set of three-phase windings and a second set of three-phase windings. A first pulse width modulator operates at a conversion frequency and at a first phase which converts a DC power source to an alternating current to power the motor. The first pulse width modulator is electrically connected to the first set of three-phase windings. Similarly, a second pulse width modulator also operates at the same conversion frequency and at a second phase which converts the DC power to alternating current to power the second set of three-phase windings. The first and second phases of the first and second pulse width modulators are offset between 80-100 degrees.

主权项

1. An electrical power system for a six-phase electric motor comprising:
a first set of three-phase windings, a second set of three-phase windings, a first pulse width modulator operating at a conversion frequency and a first phase which converts a DC power source to an alternating current, said first pulse width modulator being electrically connected to said first set of three-phase windings, a second pulse width modulator operating at said conversion frequency and a second phase which converts said DC power source to an alternating current, said second pulse width modulator being electrically connected to said second set of three-phase windings, wherein said first and second phases are offset from each other.