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AssigneeToshiba Mitsubishi-Electric Industrial Systems Corporation
InventorsShinya KAWAI, Kenshi TAKAO, Shunsuke TOBAYASHI, Chikara MORITO, Haruyuki YAMAGUCHI
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A drive system (1) drives a multi-phase AC motor (2) having a plurality of windings. The drive system (1) includes a first power converter (3U), a second power converter (3V), a first conversion controller (20U), and a second conversion controller (20V). The first power converter (3U) causes a current to flow through a winding of a first phase of the multi-phase AC motor (2). The second power converter (3V) causes a current to flow through a winding of a second phase of the multi-phase AC motor (2). The first conversion controller (20U) decides on either a three-level phase voltage waveform or a five-level phase voltage waveform on the basis of setting information for designating a type of phase voltage waveform and controls the first power converter (3U) so that the decided phase voltage waveform is output from the first power converter (3U). The second conversion controller (20V) controls the second power converter (3V) so that a phase voltage waveform having the same type as the phase voltage waveform of the first power converter (3U) is output from the second power converter (3V) on the basis of the setting information for designating the type of phase voltage waveform.
A drive system for driving a multi-phase alternating current (AC) motor having a plurality of windings, the drive system comprising:
A control device for controlling a drive system including a first power converter configured to cause a current to flow through a winding of a first phase of a multi-phase AC motor and a second power converter configured to cause a current to flow through a winding of a second phase of the multi-phase AC motor, the control device comprising:
A drive system for driving a multi-phase AC motor having a plurality of windings, the drive system comprising:
Dependencies are inferred from the claim text.