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14results about "AC/AC convertors" patented technology
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System for delivering electric power and method for delivering electric power
PCT designated stageWO2026029205A1Magnetic circuit rotating partsAC/AC convertorsElectrical conductorControl theory
A system for transferring electric power and method for transferring electric power are provided. A power supply conductor conducts a power supply current that generates a first resultant magnetic field. An electric motor has a power input terminal connected to the power supply conductor and a movable output component. A generator has a movable input component connected to the movable output component such that the movable output component causes movement of the movable input component. The generator converts the movement of the movable input component into a power output current to the power output terminal that generates a second resultant magnetic field.
Owner:GC UNIVERSAL INC
Non-contact electric energy transmission device for aircraft rotating part
The invention discloses a non-contact electric energy transmission device for an aircraft rotating part. The non-contact electric energy transmission device comprises a fixed support, a mounting cylinder, a rotating shaft, a basic cylindrical fixed magnet assembly and a basic cylindrical movable magnet assembly. The mounting cylinder is fixedly connected to the fixing support, the fixing support is fixedly connected with a static part such as a fuselage of the aircraft, and the rotating shaft is connected to a rotating part of the aircraft. In the electric energy transmission process, a power supply transmits high-frequency alternating-current electric energy to the basic primary winding, an alternating magnetic field is generated in the primary winding, and according to the electromagnetic induction principle, the alternating magnetic field passes through the basic primary magnetic core, the basic secondary magnetic core and the basic secondary winding, so that induced electromotive force is generated in the basic secondary winding; and non-contact transmission of electric energy from the basic cylindrical fixed magnet assembly to the basic cylindrical movable magnet assembly is realized. Wires and electric brushes are not arranged in the whole electric energy transmission process, so that various defects caused by poor mechanical friction and electromagnetic property in the prior art are overcome.
Owner:XIAN AEROSPACE PROPULSION TESTING TECH RES INST
Phase converter and operating procedure
Owner:VOITH PATENT GMBH
Energy transmission device and an electrical machine with an energy transmission device
ActiveDE102015007586B4Association with control/drive circuitsWindingsRotational axisElectric machine
Owner:AUDI AG
Rotary phase converter and method of operation
RPC comprising a rotor (1), a stator core (2), a stator frame (3) and a base (4), whereas the stator core (1) is connected to the stator frame (3) and the rotor (1) is rotatable around a center of rotation, and whereas the stator frame (3) is pivot-mounted on the base (4) in order to enable a rotation of the stator core (2) around the center of rotation of the rotor (1), and whereas the RPC comprises an actuator (6) arranged between the stator frame (3) and the base (4) in a way that the actuator (6) can move the stator frame (3) relative to the base (4) in order to establish a rotation of the stator core (2) around the center of rotation and means (6, 7, 8, 9, 10) to fix the stator core (2) at a predefined angular positon related to the center of rotation.
Owner:VOITH PATENT GMBH
Power generation device, rotation angle detector, and method for manufacturing power generation device
Provided is a power generation device and the like capable of reducing individual differences and non-uniformity in magnetic flux density in a power generation element. The power generation device includes magnet (20) having an annular shape centered on rotation axis line (A), magnet (20) being magnetized in a radial direction of the annular shape and rotatably disposed around the rotation axis line, and power generation element (24) that generates power by using a change in a magnetic field accompanying rotation of magnet (20). A distance from rotation axis line (A) to the center of power generation element (24) is more than or equal to a radius of an inner diameter of magnet (20) and less than or equal to an average value of the radius of the inner diameter and a radius of an outer diameter of magnet (20).
Owner:PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO LTD
Power generation device, rotation angle detector, and method for manufacturing power generation device
PendingEP4664077A4AC/AC convertorsLinear/angular speed measurementMechanical engineeringElectrical and Electronics engineering
Provided is a power generation device and the like capable of reducing individual differences and non-uniformity in magnetic flux density in a power generation element. The power generation device includes magnet (20) having an annular shape centered on rotation axis line (A), magnet (20) being magnetized in a radial direction of the annular shape and rotatably disposed around the rotation axis line, and power generation element (24) that generates power by using a change in a magnetic field accompanying rotation of magnet (20). A distance from rotation axis line (A) to the center of power generation element (24) is more than or equal to a radius of an inner diameter of magnet (20) and less than or equal to an average value of the radius of the inner diameter and a radius of an outer diameter of magnet (20).
Owner:PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO LTD
Power coupling devices for high-temperature superconductors
According to examples, a thermally separating power coupling device includes a housing that thermally and electrically isolates a high-temperature superconductor (HTS) from an electrically conductive cable. The power coupling device includes a power coupling system that includes a rotatable shaft having a motor side and a generator side. On the motor side, a set of motor magnets is attached to the shaft and a set of motor coils are positioned near the set of motor magnets. On the generator side, a set of generator magnets is attached to the shaft and a set of generator coils is positioned near the generator coils. When electrical current is supplied from the HTS to the motor coils, the motor coils rotate, thus causing the shaft to rotate. In addition, as the shaft rotates, the generator coils produce an electrical current that is outputted to the electrically conductive cable.
Owner:MICROSOFT TECHNOLOGY LICENSING LLC
SYSTEM FOR A POWER GENERATION UNIT AND METHOD FOR OPERATING A POWER GENERATION UNIT SYSTEM
ActiveDE112021003713B4Exhaust apparatusElectric motor startersFrequency changerExcitation capacitance
Power generation system, including: a power generating unit (10') comprising a motor ((22) and an AC generator (26); an electric asynchronous machine (134) for induced low voltage, which is coupled to the motor (22); an excitation capacitor (142) which is selectively coupled to the electrical machine (134) by means of a capacitor switching device (146); a power supply (150) which is selectively coupled to the electric machine (134) by a power supply switching device (154) and controlled by a frequency converter drive; and an electrical output (158) which is coupled to the electrical machine (134) by means of an output switching device, where the electric machine is structured (134): to generate electricity when the capacitor switching device (146) is closed, the power supply switching device (154) is open, the output switching device is closed, and the electric machine (134) is mechanically driven by the motor (22), or to function as a starter for starting the motor (22) when the capacitor switching device (146) is open, the power supply switching device (154) is closed, the output switching device is open and the electric machine (134) mechanically drives the motor (22); wherein the system further comprises a cooling system (38') wherein the cooling system (38') includes at least one electrically driven cooling fan (122) which is driven by the electricity generated by the electric machine (134).
Owner:CUMMINS POWER GENERATION INC
Controller for an electrical power supply circuit of a superconducting motor, superconducting electrical power supply system for a motor, and aircraft comprising such a system
ActiveUS12587005B2AC motor controlVector control systemsSuperconducting electric machineTerminal voltage
A method, which is executed by a controller, for controlling a power supply circuit of an electric motor, the power supply circuit comprising an inverter supplying the motor with power via a power supply link, the method comprising detecting an increase in the voltage across the terminals of the power supply link while overcoming the inductive component of the impedance of the power supply link, and inhibiting an output for controlling the inverter if the increase in voltage exceeds a predetermined value for a predetermined duration. Also a controller for a power supply circuit that is configured to execute the method, an electrical power supply system for a motor and an aircraft comprising such a system and a control method.
Owner:AIRBUS (SAS)
Motor-alternator-motor (MAM) systems and methods for using same
Like a transformer that can increase or decrease AC voltage or current by increasing or decreasing the turns-ratio of the transformer an amplification factor is developed. And like a transistor that can amplify / attenuate an electrical signal and by manipulating the hfe of the transistor, it could increase or decrease the amplification factor of the transistor. Likewise, the MAM unit, depending on the number of phases used, can amplify the power for a given output motor by increasing the number of phases of the output AC motor, which substantially reduces the amount of current an AC motor will draw for a specific amount of torque. By increasing the number of phases on an AC synchronous, asynchronous, axial, induction, or reluctance type motor, using alternating current, you can increase the efficiency, which implies an amplification factor of the motor thereby reducing the applied current required for a given amount of torque / speed.
Owner:TORREGANO RICHARD PAUL
Power coupling devices for high-temperature superconductors
According to examples, a thermally separating power coupling device includes a housing that thermally and electrically isolates a high-temperature superconductor (HTS) from an electrically conductive cable. The power coupling device includes a power coupling system that includes a rotatable shaft having a motor side and a generator side. On the motor side, a set of motor magnets is attached to the shaft and a set of motor coils are positioned near the set of motor magnets. On the generator side, a set of generator magnets is attached to the shaft and a set of generator coils is positioned near the generator coils. When electrical current is supplied from the HTS to the motor coils, the motor coils rotate, thus causing the shaft to rotate. In addition, as the shaft rotates, the generator coils produce an electrical current that is outputted to the electrically conductive cable.
Owner:MICROSOFT TECHNOLOGY LICENSING LLC
Assembly comprising a generator and electric motors, for a vehicle air-conditioning or refrigeration system
An assembly, having a generator and electric motors, for a vehicle air-conditioning or cooling system, having: a compressor intended to be driven by a heat engine, a top-up electric motor for driving the compressor when the latter is not or cannot be driven by the heat engine, a generator with permanent magnets having a shaft which can be driven in rotation by the heat engine, the generator and the top-up electric motor being disposed on this shaft, one or more condenser and / or evaporator electric motors of a vehicle air-conditioning or cooling system, said electric motors being configured to be powered by a direct current, the generator powering the electric motor or motors through a converter configured to supply a direct current, notably a low-voltage controller.
Owner:MOTEURS LEROY SOMER
Rotating information measurement method and device, rotary transformer system and computer equipment
ActiveCN115085616BElectronic commutation motor controlVector control systemsControl engineeringControl theory
The application relates to a rotation information measurement method and device, a resolver system and a computer device. One resolver output signal in a resolver output signal at an output end of a resolver is acquired; the one resolver output signal comprises a single-channel output signal; the single-channel output signal is decoded to obtain rotation information of the resolver; the rotation information comprises a rotor rotation angle of the resolver; the decoding of the single-channel output signal comprises: acquiring a mapping relationship between the single-channel output signal and the rotor rotation angle of the resolver at multiple different moments within a preset sampling period; and the rotor rotation angle of the resolver is obtained according to the single-channel output signal at the multiple different moments and the mapping relationship. The rotation information of the resolver is measured by using the single-channel resolver output signal, the rotation information is measured at a low cost, noise sources are introduced less, and the reliability of the rotation information measurement is effectively improved.
Owner:SYNOVATE TECH (SHENZHEN) CO LTD