Abstract: An electric power generating system (EPGS) may comprise a permanent magnet generator (PMG) comprising a rotor comprising a permanent magnet, and a stator comprising a plurality of armature windings configured to output a plurality of three-phase voltages, and a plurality of rectifiers corresponding to the plurality of armature windings and configured to rectify the plurality of three-phase voltages, wherein the plurality of rectifiers are connected in series.

Abstract: A rotor of line start permanent magnet synchronous motor is provided. The rotor includes bars of cage windings. The rotor includes an additional inductance coupled to the cage windings and located on a first end of the bars. The rotor includes an end ring located on a second end of the bars. The additional inductance provides a reactance to reduce a starting current during an asynchronous starting of the line start permanent magnet synchronous motor.

Abstract: A rotor portion of a synchronous machine includes a rotor. The rotor carries a field winding and a re-chargeable power storage device. The re-chargeable power storage device is electrically connected to the field winding to provide electrical power to the field winding while in generate or motor mode, and to provide electrical power to the re-chargeable power storage device while in a charge mode.

Abstract: A synchronous generator may comprise a rotor and a stator. The stator may comprise a first armature winding configured to output a first three-phase voltage, a second armature winding configured to output a second three-phase voltage, and a first variable inductor, wherein the first variable inductor is tunable in response to a rotational frequency of the rotor.

Abstract: An electric power system (EPS) may comprise a modular multilevel converter (MMC) and a synchronous generator in electronic communication with the MMC. The synchronous generator may comprise a stator comprising inner slots and outer slots. First, second, and third windings may be disposed in the inner slots configured to receive first, second, and third phase signals, respectively. The first, second, and third windings may each split into two arms, each arm comprising an additional winding disposed in the outer slots of the stator.

Abstract: A synchronous generator may comprise a rotor and a stator. The stator may comprise a first armature winding configured to output a first three-phase voltage and a second armature winding configured to output a second three-phase voltage. The synchronous generator may further comprise a first rectifier configured to rectify the first three-phase voltage received from the first armature winding, and a second rectifier configured to rectify the second three-phase voltage received from the second armature winding.

Abstract: An electromagnetic actuator is provided including: a housing having a longitudinal axis; a first ring coil within the housing and coaxial to the longitudinal axis; a second ring coil within the housing and coaxial to the longitudinal axis; a first magnetic member within the housing and coaxial to the longitudinal axis; a second magnetic member within the housing and coaxial to the longitudinal axis; and a ferromagnetic plunger configured to fit within the first ring coil, the second ring coil, the first magnetic member, and the second magnetic member; wherein the first ring coil and the second ring coil are oriented in an alternating arrangement with the first magnetic member and the second magnetic member.

Abstract: An electric motor includes a rotor defining a rotation axis, a plurality of permanent magnets arranged circumferentially about the rotor, a cage winding fixed to rotor radially outward of the permanent magnets. A stator is separated from the rotor by an air gap. A plurality of magnetic flux diverters is arranged circumferentially about the stator and adjacent to the air gap to control a magnetic circuit coupling the rotor and the stator.

Abstract: A high voltage DC electric power generating system includes a poly-phase permanent magnet generator having at least one control winding and a plurality of power windings. Each of the power windings is a phase of the poly-phase permanent magnet generator. A passive rectifier connects a switch to an input of each of the power windings such that the switch is a neutral node in a closed state and a disconnect in an open state.

Abstract: A redundant channel motor includes a permanent magnet rotor. The motor also includes a plurality of stator sectors surrounding the permanent magnet rotor, each of the stator sectors disposed in a common plane, independently wound, and capable of driving the load of the permanent magnet rotor in the event of failure of one of the other stator sectors.

Abstract: A power drive unit (PDU) may comprise a first motorized roller comprising an outer rotor having a first magnetic member disposed on a radially inner surface of the outer rotor and may have a liner disposed on a radially outer surface of the outer rotor. The PDU may further comprise an inner rotor having a second magnetic member disposed on a radially outer surface of the inner rotor, the inner rotor configured to drive a shaft. The PDU may further comprise a stator located between the outer rotor and the inner rotor, the stator having at least one winding in electromagnetic communication with the first magnetic member and the second magnetic member. The PDU may further comprise a second motorized roller comprising a cylindrical member coupled to the shaft and may have a second liner disposed on a radially outer surface of the cylindrical member.

Abstract: An interior permanent magnet (IPM) rotor as a well as method for providing and a system that includes an IPM rotor is provided. The IPM rotor includes a rotor body that rotates around a central rotational axis, wherein the rotor body is a ferromagnetic core with a central axial bore and is included of a plurality of rotor segments, wherein each rotor segment corresponds to a pole of the IPM motor, and wherein at least one of the rotor segments of the plurality of rotor segments includes a spoke-type interior permanent magnet (IPM) disposed within the rotor body and extending radially outward from the central axial bore to an outer surface of the rotor body, and a curved interior permanent magnet (IPM) disposed within the rotor body and extending radially outward at an incline with respect to a radial plane extending through a center of the spoke-type IPM.

Abstract: Multiplex winding synchronous power generating systems and vehicle power systems are provided that include a rotating part including a plurality of windings, a primer mover configured to drive the rotating part, a stator part having a plurality of windings, a plurality of rectifiers, three 3-phase 5-level motor drives, at least one H-bridge, at least one 3-phase AC motor, and a generator voltage regulator that regulates current of voltages of local DC busses of the three 3-phase 5-level motor drives.

Abstract: A switched reluctance motor includes a stator and a rotor disposed within the stator, wherein at least one of the stator and the rotor is formed from a plurality of laminate sheets, wherein each of the laminate sheets extends in an axial direction and the plurality of laminate sheets are disposed in a radial direction.

Abstract: A motor-generator includes a double-sided stator having a first stator pole wound with a first stator winding of a first channel and a second stator pole wound with a second stator winding of a second channel. The first stator pole and the second stator pole are axially aligned with respect to a centerline of the motor-generator and radially offset between a radially inner side and a radially outer side of the double-sided stator. The motor-generator also includes at least one rotor radially disposed from the double-sided stator with respect to the centerline of the motor-generator.

Abstract: An electromagnetic solenoid actuator includes a ferromagnetic core body defining an axis, a winding supported by the core body, and a ferromagnetic plunger body translatable within the core body along the axis. The core body has a fixed height gap that extends about the axis and the plunger body and core body define between one another a variable height gap that extends about the axis. A first flux bypass extends through the fixed height gap and a second flux bypass extends through the variable height gap that cooperate with one another to correct the attraction force between the plunger and core body as height of the variable height gap changes.

Abstract: A rotor of an induction motor includes a shaft, a ferromagnetic rotor core, first and second inductors axially bracketing the rotor core, and a rotor cage. The shaft extends along a stator axis, and the rotor core is disposed coaxially about the shaft. The rotor cage comprises first and second supports, and a plurality of cage bars. The supports are disposed axially between the rotor core and the first and second inductors, respectively. The cage bars surround the shaft, pass through the rotor core, are secured at the first and second supports, and are each electrically connected to both the first and second inductors.

Abstract: A power system architecture includes a prime mover, a plurality of single phase permanent magnet generators mechanically coupled to the prime mover, a DC power bus including a plurality of DC power storage components, each of the DC energy storage components being electrically connected to at least one of the single phase permanent magnet generators, a plurality of state of charge calculators, each of the state of charge calculators being connected to one of the DC energy storage component and being communicatively coupled to a generator control unit, and wherein the generator control unit is configured to independently control each of the single phase permanent magnet generators.

Abstract: A high voltage power generating system includes a first poly-phase permanent magnet generator including at least one control winding and a plurality of power windings, a second poly-phase permanent magnet generator including at least one control winding and a plurality of power windings, the first and second poly-phase permanent magnet generators being arranged in series in at least one operational mode, and the first poly-phase permanent magnet generator being phase shifted relative to the second poly-phase permanent magnet generator such that residual voltage output of the first poly-phase permanent magnet generator is offset by the second poly-phase permanent magnet generator during a first operational mode.

Abstract: A high voltage DC electric power generating system includes a poly-phase permanent magnet generator having at least one control winding and a plurality of power windings. Each of the power windings is a phase of the poly-phase permanent magnet generator. A passive rectifier connects a switch to an input of each of the power windings such that the switch is a neutral node in a closed state and a disconnect in an open state.