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公开(公告)号：US11070116B2
公开(公告)日：2021-07-20
申请号：US16517262
申请日：2019-07-19
Applicant: ABB Schweiz AG
Inventor： Darren D. Tremelling , Colin Tschida , Ghanshyam Shrestha , Bahareh Anvari
Abstract: A rotating electrical machine of the double stator configuration includes a rotor shaped as a hollow cylinder disposed concentrically between an outer stator and an inner stator. The rotor can include plurality of radially spaced magnet cavities configured to receive permanent magnetic bars. To provide sufficient stiffness and rigidity, the rotor may be made from fiber composite material. To simplify construction, the rotor can be assembled from a plurality of rotor segments radially arranged about an axis line in which the magnet cavities are disposed.
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公开(公告)号：US11177761B1
公开(公告)日：2021-11-16
申请号：US17015920
申请日：2020-09-09
Applicant: ABB Schweiz AG
Inventor： Md Ashfanoor Kabir , Bahareh Anvari , Jukka T. Jarvinen , Ghanshyam Shrestha
Abstract: 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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公开(公告)号：US20210021182A1
公开(公告)日：2021-01-21
申请号：US16517262
申请日：2019-07-19
Applicant: ABB Schweiz AG
Inventor： Darren D. Tremelling , Colin Tschida , Ghanshyam Shrestha , Bahareh Anvari
Abstract: A rotating electrical machine of the double stator configuration includes a rotor shaped as a hollow cylinder disposed concentrically between an outer stator and an inner stator. The rotor can include plurality of radially spaced magnet cavities configured to receive permanent magnetic bars. To provide sufficient stiffness and rigidity, the rotor may be made from fiber composite material. To simplify construction, the rotor can be assembled from a plurality of rotor segments radially arranged about an axis line in which the magnet cavities are disposed.
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