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Fault tolerant modular motor drive system

專(zhuān)利號(hào)
US11177761B1
公開(kāi)日期
2021-11-16
申請(qǐng)人
ABB Schweiz AG(CH Baden)
發(fā)明人
Md Ashfanoor Kabir; Bahareh Anvari; Jukka T. Jarvinen; Ghanshyam Shrestha
IPC分類(lèi)
H02P1/32; H02P3/20; H02P9/06; H02P29/028; H02P27/06; H02P25/22
技術(shù)領(lǐng)域
stator,drive,phase,respective,modules,ninv,module,conductors,conductor,poly
地域: Baden

摘要

An electric machine includes a rotor and a stator. The stator includes a stator core having a plurality of slots. The stator further includes a plurality of drive modules configured to collectively produce an aggregate rotating magnetic field. Each respective drive module includes a power supply configured to generate a respective poly-phase alternating current (AC) output and is connected to a plurality of respective conductor windings. Each respective conductor winding includes a plurality of respective conductors, each respective conductor configured to carry a respective phase of the respective poly-phase AC output. Each respective drive module is configured to generate a rotating, poly-phase, multipole magnetic field. The rotating, poly-phase, multipole magnetic field is a superimposition of a plurality of respective mono-phase, multiple magnetic fields being generated by a respective conductor of the respective conductor winding.

說(shuō)明書(shū)

FIG. 7 illustrates dynamic torque profiles generated, under healthy and various faulty conditions, by a three-phase, four-pole electric machine according to an embodiment;

FIG. 8 illustrates fault operating conditions for a conventional electric machine with a three phase inverter and for a three-phase, four-pole electric machine according to an embodiment;

FIGS. 9a through 9d illustrate magnetic flux distribution generated, in both healthy and faulty conditions, by a three-phase, four-pole electric machine according to an embodiment; and

FIG. 10 is a graph of torque versus time for an electric machine according to an embodiment.

DETAILED DESCRIPTION

權(quán)利要求

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