Fault tolerant modular motor drive system
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.
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The present disclosure describes electric machines and methods for operating electric machines that provide improved fault tolerance, higher performance, better efficiency during extended speed and partial load operation, and superior thermal management. The electric machines include distributed wound stators having a modular structure composed of a plurality of drive modules. Each drive module can include a power supply that generates a poly-phase AC output that can be supplied to a plurality of conductors. The conductors can form a distributed winding. The distributed winding of each drive module can be uniformly distributed about the periphery of the stator.
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