US 12,294,313 B2
Drive system and control device for drive system
Shinya Kawai, Tokyo (JP); Kenshi Takao, Tokyo (JP); Shunsuke Tobayashi, Tokyo (JP); Chikara Morito, Tokyo (JP); and Haruyuki Yamaguchi, Tokyo (JP)
Assigned to TMEIC CORPORATION, Chuo-ku (JP)
Appl. No. 18/042,940
Filed by TOSHIBA MITSUBISHI-ELECTRIC INDUSTRIAL SYSTEMS CORPORATION, Chuo-ku (JP)
PCT Filed Feb. 8, 2021, PCT No. PCT/JP2021/004577
§ 371(c)(1), (2) Date Feb. 24, 2023,
PCT Pub. No. WO2022/168310, PCT Pub. Date Aug. 11, 2022.
Prior Publication US 2024/0195321 A1, Jun. 13, 2024
Int. Cl. H02M 7/483 (2007.01); H02M 7/49 (2007.01); H02P 27/14 (2006.01)
CPC H02M 7/49 (2013.01) [H02P 27/14 (2013.01)] 13 Claims
OG exemplary drawing
 
1. A drive system for driving a multi-phase alternating current (AC) motor having a plurality of windings, the drive system comprising: a first power converter configured to cause a current to flow through a winding of a first phase of the multi-phase AC motor; a second power converter configured to cause a current to flow through a winding of a second phase of the multi-phase AC motor; a first conversion controller configured to decide on either a three-level phase voltage waveform or a five-level phase voltage waveform on a basis of setting information for designating a type of phase voltage waveform and control the first power converter so that the decided phase voltage waveform is output from the first power converter; and a second conversion controller configured to control the second power converter so that a phase voltage waveform having the same type as the phase voltage waveform of the first power converter is output from the second power converter on the basis of the setting information for designating the type of phase voltage waveform.