The University of Akron

Tausif Husain

Yilmaz Sozer

Iftekhar Hasan

Ali Elrayyah

Jerald K Cohen

A single stack transverse flux machine includes a rotor assembly having an internal rotor disc with a rotor shaft extending from and rotating with the internal rotor disc, and a rotor ring having a plurality of stator poles interleaved with a plurality of interpoles. The plurality of stator poles and the plurality of interpoles are radially disposed around the internal rotor disc. Each stator pole has a plurality of core components spaced apart from one another. Primary magnets are interposed between the plurality of core components. The machine also includes a stator assembly with a plurality of shaped cores, each shaped core having a base with a plurality of legs with a corresponding gap therebetween. Each leg has a winding, and the shaped cores are positioned so that each leg is juxtaposed with a corresponding one of the plurality of core components and has an air gap therebetween.

Single stack multiphase transverse flux machines

Embodiments provide an integrated motor-compressor assembly including a rotating impeller to compress a fluid passing therethrough, and diffuser vanes radially spaced from the impeller, each of the diffuser vanes including a stator winding therearound, the stator windings being supplied with current to generate sufficient magnetic flux for rotating the impeller. Embodiments provide an integrated motor-compressor assembly including a volute casing housing a rotating impeller to compress a fluid passing therethrough, a stator fixedly positioned in the volute casing proximate to the impeller, the stator including stator poles axially spaced from the impeller, each of the stator poles including a stator winding, the stator windings being supplied with current to generate sufficient axial magnetic flux for rotating the impeller.

Integrated motor compressor for vapor compression refrigeration system

A D-Q or rotating reference frame control system for a switched reluctance motor (SRM) provides a negativity removal module and a non-linear model module. As such, the control system utilizes control inputs fand f, which are converted into the ABC domain as electrical current functions f'with negative values. The negativity removal module is configured to share the torque portion of the negative values of the electrical current functions f&#x2032;for each of the three phases of the SRM motor to remove the negative values. The non-linear module corrects the non-linearity of the SRM to smooth the torque that is output. The control system also utilizes a phase advancing module, which outputs ffor achieving a wide range of operating speeds.

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Akron, OH, United States of America

Tausif Husain