A device for preventing a vibration of a stator core for power generator includes: a ring-shaped fastening band installed to enclose an outer circumferential surface of a stator core to support the stator core; a plurality of key bars coupled with the fastening band to be coupled with the stator core; and a plurality of elastic portions coupled with the fastening band to insulate vibrations in a diameter direction and an outer circumferential direction of the stator core, in which a diameter of the fastening band is extendible.

Provided is a rotating electrical machine in which torque ripple can be decreased at the time of one-side electrical current supply. A motor includes a stator coil constituted by concentrated windings arranged to teeth where an integer N2. The stator coil includes first and second winding units and each of which is constituted by windings and which are independent from each other, the windings constituting the first winding unit are arranged in three teeth groups, each of which includes adjacent teeth and which are provided at 120-degree pitches in terms of mechanical angle, and the windings constituting the second winding unit are arranged in teeth which are the teeth not included in the three teeth groups. That is, the windings constituting the second winding unit are also arranged in three teeth groups, which are provided at 120-degree pitches in terms of mechanical angle.

A permanent magnet module for an electrical machine extending along an axial direction is provided. The permanent magnet module comprises a permanent magnet assembly comprising at least one permanent magnet and a base supporting at least part of the permanent magnet assembly and extending from a bottom adapted to be positioned on a rotor of an electrical machine to a top along a radial direction. The permanent magnet assembly further comprises a first inclined permanent magnet portion and a second inclined permanent magnet portion arranged outwardly inclined along the radial direction and a tangential permanent magnet portion arranged substantially perpendicular to the radial direction.

A fault tolerant, optically or electrically managed, EMP resilient electromagnetic distributed direct drive powertrain applied to provide lift and/or propulsion and/or attitude control to an aircraft. The electromagnetic distributed direct drive being network based, capable of autonomous operations and decisions such as pilot input interpreting mode, load distribution, fault management, self-healing operations, electrical and mechanical health monitoring, as well as electrical and mechanical fault prediction.

The present approach includes, in one implementation, a direct drive motor for use in a CT gantry and having a segmented motor stator assembly. The stator segments are connected in series. The stator segments are not independently operable and are instead connected in series to, and operated by, a single frequency controller.

A method of manufacturing dynamoelectric machines includes producing a first plurality and a second plurality of stator and rotor laminations using a die press, forming a first rotor from the first plurality of rotor laminations, and forming a second rotor from the second plurality of rotor laminations. The first plurality and the second plurality of stator laminations have the same inner and outer diameters. The first plurality and the second plurality of rotor laminations have the same inner and outer diameters. The first plurality of rotor laminations have a first magnet slot configuration and the second plurality of rotor laminations have a second magnet slot configuration different than the first magnet slot configuration. The first rotor and the second rotor may have the same or different stack heights. Preferably, a ratio of each stator lamination's inner diameter to outer diameter is at least 60%.

An electrical machine includes a laminated core, cooling tubes arranged within the laminated core, and couplings that interconnect the cooling tubes, where a first coupling type has a T-shaped branch and where, in particular, two couplings interconnect two adjacent cooling tubes to one another.

Certain embodiments are directed to devices, methods, and/or systems that use electrical machines. For example, certain embodiments are directed to an electrical machine comprising: at least one stator at least one module, the at least one module comprising at least one electromagnetic coil and at least one switch, the at least one module being attached to the at least one stator; at least one rotor with a plurality of magnets attached to the at least one rotor, wherein the at least one module is in spaced relation to the plurality of the magnets; and the at least one rotor being in a rotational relationship with the at least one stator, wherein the quantity and configuration of the at least one module in the electrical machine is determined based in part on one or more operating parameters; wherein the at least one module is capable of being independently controlled; and wherein the at least one module is capable of being reconfigured based at least in part on one or more of the following: at least one operating parameter during operation, at least one performance parameter during operation, or combinations thereof. Other embodiments are also disclosed.

An electric supercharger comprises a motor, for example a switched reluctance motor. The motor includes a stator assembly (101) comprising a plurality of pairs of windings (103A-C), each pair of windings (103A-C) comprising a first winding for forming a first pole and a second winding for forming a second, opposite, pole, each winding having an input termination (105) and an output termination (107). The terminations (105, 107) of each pair of windings (103A-C) are arranged such that the input terminations (105) for the first and second windings are located adjacent one another and the output terminations (107) of the first and second windings are located adjacent one another.

A method, system and device for an electric generator comprising dynamically selectable number of generator disk assemblies.