US 12,283,903 B2
Multi-three-phase drive system
Boran Fan, Blacksburg, VA (US); Jagadeesh K. Tangudu, South Windsor, CT (US); Rolando Burgos, Blacksburg, VA (US); Vladimir Blasko, Avon, CT (US); and Dong Dong, Blacksburg, VA (US)
Assigned to HAMILTON SUNDSTRAND CORPORATION, Charlotte, NC (US)
Filed by Hamilton Sundstrand Corporation, Charlotte, NC (US)
Filed on Jul. 14, 2023, as Appl. No. 18/352,343.
Claims priority of provisional application 63/407,212, filed on Sep. 16, 2022.
Prior Publication US 2024/0097593 A1, Mar. 21, 2024
Int. Cl. H02P 5/46 (2006.01); H02K 11/33 (2016.01); H02P 27/06 (2006.01); H02P 29/50 (2016.01)
CPC H02P 27/06 (2013.01) [H02K 11/33 (2016.01); H02P 29/50 (2016.02); H02K 2213/03 (2013.01)] 17 Claims
OG exemplary drawing
 
1. A multi-three-phase motor drive system comprising:
a power distribution network including a positive voltage rail, a negative voltage rail, and a partitioned direct current (DC) link connected between the positive voltage rail and the negative voltage rail, the partitioned DC link including a mid-point node connected between the positive voltage rail and the negative rail, wherein a connection between the positive voltage rail and the mid-point node defines an upper portion of the partitioned DC link and a connection between negative voltage rail and the mid-point node defines a lower portion of the partitioned DC link;
a motor drive unit in signal communication with the power distribution network and including a plurality of inverter units, each of the inverter units including a plurality of individual inverter devices; and
a motor network including a plurality of motor windings, each of the motor windings connected to a respective inverter unit included in the motor drive unit,
wherein a first group of the plurality of inverter units is connected in parallel with the upper portion of the portioned DC link, and a second group of the plurality of inverters is connected in parallel with the lower portion of the partitioned DC link.