An embodiment of the present invention provides a rotor and a motor having the rotor. By providing a plurality of flux barrier groups and slot groups at intervals in a circumferential direction of the rotor iron core, it is possible to flexibly arrange the numbers of the flux barrier groups and the slot groups so as to meet the requirements for the number of poles of different products. In addition, by flexibly adjusting the quantity ratio between the flux barrier groups and the slot groups and/or the quantity relationship between the flux barriers in the flux barrier group and the slots in the slot group, it is possible to meet the requirements for motor efficiency and starting capacity of different products. Further, since the processing jig of the rotor only requires processing of the structures of the flux barriers and the slots, the manufacturing cost can be reduced.

A doubly fed brushless induction starter generator includes a stator and a rotor, which are separated by an air gap. The stator includes stator winding slots, each of which includes a first layer of power windings, a second layer of power windings, and a third layer of control windings, which include 2-pole single-phase windings. The control windings are arranged in the stator winding slots between the air gap and the first and second layers of power windings. Direct current is delivered to control windings in the generator as an excitation current to thereby produce a magnetic flux, through which the stator is moved to produce and alternating current in the power windings as an output current. The output current can be delivered to an electrical load, such as an electrical component on an aircraft.

A synchronous reluctance type rotary electric machine of an embodiment includes a shaft, a rotor core, rotor core pressers, a plurality of conductor bars, and short-circuit rings. The shaft rotates around a rotation axis. The rotor core is fixed to the shaft and includes multi-layered hollow parts having a convex shape toward a radially inward side formed for each pole in cross section. The rotor core pressers hold the rotor core by pressing the rotor core from both sides in a rotation axis direction. The plurality of conductor bars are disposed in the hollow parts to extend along the rotation axis and have both ends protruding through the rotor core pressers. The short-circuit rings are provided at both ends of each of the plurality of conductor bars and connect the plurality of conductor bars together. Thus, the conductor bars are fixed to the rotor core pressers.

A synchronous reluctance type rotary electric machine of an embodiment includes a shaft, a rotor core, rotor core pressers, a plurality of conductor bars, and short-circuit rings. The shaft rotates around a rotation axis. The rotor core is fixed to the shaft and includes multi-layered hollow parts having a convex shape toward a radially inward side formed for each pole in cross section. The rotor core pressers hold the rotor core by pressing the rotor core from both sides in a rotation axis direction. The plurality of conductor bars are disposed in the hollow parts to extend along the rotation axis and have both ends protruding through the rotor core pressers. The short-circuit rings are provided at both ends of each of the plurality of conductor bars and connect the plurality of conductor bars together. Thus, the conductor bars are fixed to the rotor core pressers.

An induction machine with integrated magnetic gears is disclosed. The machine comprises two rotors and two stators. An outer stator has ferromagnetic material, producing a rotating magnetic field with a defined number of pole pairs synchronized with a supply frequency. A high speed rotor has ferromagnetic material and a combination of rotor bars and permanent magnet pole pieces selected so that the permanent magnet pole pieces do not interact with the outer stator magnetic field. The high speed rotor rotation is asynchronously coupled to the outer stator magnetic field. An inner stator has ferromagnetic steel segments that modulate the field produced by the high speed rotor permanent magnets. A low speed inner rotor has ferromagnetic material and permanent magnet pole pieces, the low speed inner rotor counter-rotating to the high speed rotor. The low speed inner rotor is synchronously coupled to the high speed rotor using modulation harmonics.

The present invention discloses an alternating current (AC) permanent magnet motor, including a stator, a rotor, and a controller. Cable troughs and some same coil windings exist on a silicon steel sheet of a stator core. Grooves exist on the stator core, and stator permanent magnets are mounted in the grooves. The groove includes two types of grooves, namely, open grooves and enclosed grooves, and the two types of grooves are alternately laminated to form the stator core. A coil unit of the stator includes stator permanent magnets mounted in grooves of two stator cores and four same coils, and some same coil units form a three-phase stator coil. The rotor includes rotor cores, enclosed squirrel cages and rotor permanent magnets. The controller outputs a three-phase power source having a same positive and negative half sine-wave or step-wave pulse.

The present invention discloses an alternating current (AC) permanent magnet motor, including a stator, a rotor, and a controller. Cable troughs and some same coil windings exist on a silicon steel sheet of a stator core. Grooves exist on the stator core, and stator permanent magnets are mounted in the grooves. The groove includes two types of grooves, namely, open grooves and enclosed grooves, and the two types of grooves are alternately laminated to form the stator core. A coil unit of the stator includes stator permanent magnets mounted in grooves of two stator cores and four same coils, and some same coil units form a three-phase stator coil. The rotor includes rotor cores, enclosed squirrel cages and rotor permanent magnets. The controller outputs a three-phase power source having a same positive and negative half sine-wave or step-wave pulse.

The described technology relates to a rotor having a flux filtering function and a synchronous motor comprising the same. The rotor includes a rotor iron core, a plurality of permanent magnets and a plurality of conductor bars. The rotor iron core has a rotary shaft insertion hole, formed in the center thereof, into which a rotary shaft is inserted, a plurality of permanent magnet insertion holes being formed in the circumference of the rotary shaft insertion hole, and a plurality of conductor bar insertion holes are uniformly formed in a region between the plurality of permanent magnet insertion holes and the outer surfaces thereof. The plurality of permanent magnets are respectively inserted into the plurality of permanent magnet insertion holes, thereby forming N and S magnetic poles of the rotor. Additionally, the plurality of conductor bars are respectively inserted into the plurality of conductor bar insertion holes.

The described technology relates to a rotor having a flux filtering function and a synchronous motor comprising the same. The rotor includes a rotor iron core, a plurality of permanent magnets and a plurality of conductor bars. The rotor iron core has a rotary shaft insertion hole, formed in the center thereof, into which a rotary shaft is inserted, a plurality of permanent magnet insertion holes being formed in the circumference of the rotary shaft insertion hole, and a plurality of conductor bar insertion holes are uniformly formed in a region between the plurality of permanent magnet insertion holes and the outer surfaces thereof. The plurality of permanent magnets are respectively inserted into the plurality of permanent magnet insertion holes, thereby forming N and S magnetic poles of the rotor. Additionally, the plurality of conductor bars are respectively inserted into the plurality of conductor bar insertion holes.

The invention belongs to the category of electric motors and power generators, and may expand the area of application, reduce costs, and increase the specific power and efficiency of electric machines. These electric machine comprise a rotor and a stator with winding coils and a control device. Stator winding coils are made as a system of radial and/or tangential coils connected in series and/or back-to-back; each coil has its own electric terminals. The control device connects its electric contacts with terminals of corresponding stator winding coils in order to provide a chain control of electric current supply to the corresponding stator coils and to create, at each point in time, a pre-determined stator magnetic field including a rotating or a reciprocating stator magnetic field, depending on the spatial position and the magnetic condition of the rotor. The invention can be applied to various fields of technology.