99results about "Association for rectification" patented technology

Disclosed are a non-contact rotary transformer and a motor comprising same. A non-contact rotary transformer according to the present invention is a device for connecting a rotor of a motor with an external power source in a non-contact manner, and is characterized by comprising: a core part disposed inside a hollow motor shaft in a coaxial structure with the motor shaft; a primary coil part installed on the outer circumferential surface of the core part; a secondary coil part which is installed on an inner main surface of the motor shaft and surrounds the primary coil part at a predetermined interval (air gap) therefrom; and a rectifier circuit part which is coupled to the motor shaft and rotates in synchronization therewith, and which is electrically connected to the secondary coil part.

A drive unit assembly includes a motor having: a motor housing; a shaft extending through the motor housing; a rotor coupled to the shaft; a stator arranged around the rotor; and one or more motor busbars communicatively coupled to the stator. The drive unit assembly further includes a filter having: a filter housing coupled to the motor housing; one or more filter busbars, each filter busbar having an inlet and an outlet configured to communicatively coupled to at least one of the one or more motor busbars; a printed circuit board (PCB) communicatively coupled to the one or more filter busbars; and one or more dissipative components coupled to the PCB.

A rotary transformer is disclosed herein comprising a stationary portion and a rotating portion. The stationary portion includes a transformer housing, a primary coil positioned within the transformer housing and defining a central axis, and a stationary printed circuit board (PCB). The stationary PCB includes an excitation coil of an inductive position sensor and at least one sensing coil of the inductive position sensor. The rotating portion of the rotary transformer includes a rotating PCB with a secondary coil of the rotary transformer positioned on the rotating PCB. The rotating portion further includes a diode holder connected to the rotating PCB. The diode holder includes at least one target for the inductive position sensor.

The invention relates to the technical field of high-speed generators, and discloses a double-three-phase fractional-slot winding carbon fiber reinforced high-speed generator and a design method.The double-three-phase fractional-slot winding carbon fiber reinforced high-speed generator comprises a permanent magnet synchronous motor, the permanent magnet synchronous motor adopts a double-three-phase winding surface-mounted topology and fractional-slot distribution winding, and a carbon fiber bundle is arranged on the surface of a rotor; the stator winding adopts a split transposition structure and is internally provided with an oil duct; and the controllable rectification controller adopts a three-phase two-level main power conversion topology and comprises a control circuit of a dual-digital signal processor redundancy architecture, a driving circuit of a multi-level driving architecture and a three-phase full-bridge silicon carbide main power circuit adaptive to a high-voltage multi-level topology. By adopting the dual three-phase fractional slot winding surface-mounted permanent magnet synchronous motor topology and cooperating with the split transposition winding structure, the winding circulation loss is reduced, the fault-tolerant capability is improved, and the rotor is bundled and reinforced by carbon fiber wires to counteract the high-speed rotation centrifugal force.

The utility model belongs to rectifier technical field especially is concerned about a kind of synchronous rectification module for generator low pressure high power.Technology includes two rectification modules, and diode is installed on rectification module, and the upper end of rectification module is fixed with first boss, and rectification module is first rectification module and second rectification module, and lower end is hinged together by hinging piece;First boss is provided with through-hole, and eccentric cam clamping rod is equipped in through-hole, and the clamping rod left end of eccentric cam clamping rod sequentially passes two first bosses from the right side of through-hole;Nut is threadedly connected on the clamping rod of first boss left side;The clamping rod of first boss right side is equipped with eccentric cam that can rotate left and right.Eccentric cam rotates left and right around camshaft and clamps first boss, so that first rectification module and second rectification module can be quickly installed and disassembled from the rotating shaft of generator, and diode and other components on rectification module are conveniently replaced and maintained.

Provided is a controller having high workability (assemblability and maintainability). The controller is provided with: a housing provided with a bottom panel; a power supply circuit board provided with a first connector and disposed on the bottom panel; a system circuit board provided with a second connector, the system circuit board and the power supply circuit board being arranged in a direction along the bottom panel and disposed on the bottom panel; and a first cable connecting the first connector and the second connector, the first connector being disposed along a side of the power supply circuit board facing the system circuit board, and the second connector being disposed along a side of the system circuit board facing the power supply circuit board. The first connector and the second connector are disposed so as to be offset in a second direction orthogonal to a first direction in which the power supply circuit board and the system circuit board are arranged.

The invention discloses a wave energy and ocean current energy integrated power generation device, and relates to the technical field of power generation devices. The power output end of the ocean current energy capturing mechanism is connected with the first rotating part to drive the first rotating part to rotate; the mechanical motion rectifying mechanism comprises a reciprocating lifting part, a rotary output part and a motion rectifying structure, and the motion rectifying structure is connected with the reciprocating lifting part and the rotary output part and can convert lifting bidirectional power of the reciprocating lifting part into rotary power of the rotary output part; the rotation output part is connected with the second rotation part and can drive the second rotation part to rotate in the direction opposite to the rotation direction of the first rotation part. And the floating output end of the wave energy capturing mechanism is connected with the reciprocating lifting part. The wave energy power generation device and the ocean current energy power generation device can be coupled together, the effect of adding the rotating speed of the power generator is achieved, and then the energy utilization rate is increased.

A vehicle is provided that includes a traction motor. The traction motor includes a direct current capacitor (DC capacitor) and a printed power circuit board (power PCB) that converts the direct current power (DC power) received by the DC capacitor into alternating current power (AC power). The traction motor also includes a stator with windings. The traction motor further includes a first phase connection, a second phase connection, and a third phase connection arranged between the power PCB or power module and the stator windings. The first, second, and third phase connections provide an electrical connection between the power PCB or power module and the stator windings and are arranged in a triangular configuration to supply AC power to the stator windings.The traction motor also includes a triangular AC choke that encloses the first phase connection, the second phase connection and the third phase connection in the triangular configuration.

The invention discloses a brushless direct current generator rectifier fault detection system and a protection method, and belongs to the technical field of aviation power supply systems. Comprising a direct-current generator, a generator controller, a direct-current main feeder line, a direct-current contactor, a direct-current bus bar and a storage battery, the invention includes a main contactor that opens the generator output in response to generator rectifier short circuit protection. A traditional mode of detecting pulsating voltage after rectification and filtering is adopted, and under the condition that a single diode of a rectifier is open-circuited, pulsating voltage conversion is not obvious due to filtering, and a generator controller cannot accurately judge faults. According to the invention, the second rectifying circuit is added, so that the pulsating voltage before filtering of the generator is detected, the defects are overcome, the amplitude of the pulsating voltage can be accurately detected, faults such as open circuit and short circuit can be accurately identified, and the safety of the system and the aircraft is improved.

Some embodiments provide irrigation generator systems that include a main conduit comprising an inlet conduit and an outlet conduit; a flow control system positioned within the main conduit; a generator conduit comprising a generator inlet conduit and a generator outlet conduit, wherein the generator inlet conduit is fluidly coupled with the main conduit upstream of the flow control system, the generator outlet conduit is fluidly coupled with the main conduit downstream of the flow control system; and a generator comprising a rotor assembly cooperated with generator conduit to be physically activated by a flow of fluid through the generator conduit causing rotation of the rotor assembly and generates electrical power. The flow control system transitions between a closed state to the open state in response to a water pressure exceeding a pressure threshold.

A controller includes a housing including a bottom surface panel, a power supply circuit substrate including a first connector, disposed on the bottom surface panel, a system circuit substrate including a second connector, disposed on the bottom surface panel by being aligned with the power supply circuit substrate in a direction along the bottom surface panel, and a first cable coupled to the first connector and the second connector. The first connector is disposed along a side of the power supply circuit substrate which faces the system circuit substrate. The second connector is disposed along a side of the system circuit substrate which faces the power supply circuit substrate. The first connector and the second connector are disposed to be shifted in a second direction orthogonal to a first direction in which the power supply circuit substrate and the system circuit substrate are aligned.

A stator defines multiple stator poles with associated stator windings. A rotor defines multiple rotor poles with associated rotor windings configured to be energized substantially by the stator. The rotor defines a rotor field energizable by magnetic fields produced by the stator windings to produce relative force between the rotor and the stator. An active rectifier is conductively coupled to one or more first rotor windings. The active rectifier is configured to control a direction of current flow through the one or more first rotor windings responsive to a signal received wirelessly from the stator by one or more second rotor windings.

The invention discloses a generator rectifying device which comprises a rectifying device and a generator, the rectifying device comprises a rectifying module, a centrifugal fan and a shaft connector, the centrifugal fan comprises an impeller, an impeller shaft, a first end plate and a second end plate, and the first end plate and the second end plate are connected through a plurality of supporting columns to form a centrifugal fan shell. The impeller is coaxially installed between the first end plate and the second end plate, the impeller shaft is coaxially and integrally arranged on the side, close to the first end plate, of the impeller, and the end, away from the impeller, of the impeller shaft penetrates through the first end plate and is coaxially connected with a generator rotor rotating shaft through a shaft connector. The two rectification modules are installed on the side, away from the first end plate, of the second end plate of the centrifugal fan in a mirroring mode, and when a rotor of the generator rotates, the centrifugal fan conducts heat dissipation on the generator and the rectification modules at the same time. The centrifugal fan is arranged on the rectifier module, so that the aim of performing air-cooling heat dissipation on the rectifier module and the generator at the same time is fulfilled.

This invention discloses an integrated wave energy and ocean current energy power generation device, relating to the field of power generation device technology. It includes a power generation mechanism comprising a rotating part one and a rotating part two; an ocean current energy capture mechanism, the power output end of which is connected to the rotating part one to drive its rotation; a mechanical motion rectification mechanism, comprising a reciprocating lifting part, a rotating output part, and a motion rectification structure, the motion rectification structure connecting the reciprocating lifting part and the rotating output part, capable of converting the bidirectional lifting power of the reciprocating lifting part into the rotational power of the rotating output part; the rotating output part is connected to the rotating part two, capable of driving the rotating part two to rotate in the opposite direction to the rotation of the rotating part one; and a wave energy capture mechanism, the floating output end of which is connected to the reciprocating lifting part. This invention couples a wave energy power generation device and an ocean current energy power generation device together, effectively summing the generator speeds, thereby improving energy utilization efficiency.

Modular power generation system, consisting of at least one miniature three-phase generator, mountable on a wheel or hub for generating electrical energy through wheel or hub rotation for the autonomous power supply of batteries and mobile devices. Power generation system comprising at least one mechanically driven power source, an electronic processing unit, and an output unit for supplying external devices, characterized in that the power source is a rotating generator and the processing unit comprises a rectifier, a DC-DC converter, and a USB output.

The application discloses an automatic variable-speed motor and a control method thereof, which comprises a motor shell, a motor stator, a motor rotor, a rectifier transformer module and a contactor module. The motor stator is embedded with multiple groups of symmetrical three-phase power windings and a group of power generation windings; the terminals of the multiple groups of three-phase power windings are respectively connected to the normally open or normally closed contact points of the contactor module; the other ends of the normally open or normally closed contact points of the contactor module are connected to three-phase lead-out wires; the three-phase lead-out wires are connected to the output ends of a motor controller or directly connected to a three-phase power supply; the power generation windings are connected to the input ends of the rectifier transformer module; and the output ends of the rectifier transformer module are connected to the control ends of the contactor module. The number of turns of the power generation windings can be changed to adjust the output voltage of the power generation windings at different rotating speeds; the voltage output characteristics of the rectifier transformer module are set to control the contact point action of the contactor module, the series-parallel connection of the motor windings at different rotating speeds is realized, and the automatic variable-speed purpose is achieved.

An electrical machine comprising a rotatable shaft; an induction generator mechanically coupled to the rotatable shaft and defining a power output connectable with an electrical load, wherein the power output defines a desired constant voltage output; a converter electrically connected with the power output; and a controller connected to the converter, the controller configured to at least one of provide supplemental power at the power output or absorb excess power at the power output.

The utility model provides a waveform rectification comparator, a Hall motor and a ripple motor, and relates to the technical field of motors, the waveform rectification comparator comprises an operational amplifier, the reverse input end of the operational amplifier is connected with the waveform input end of the rectification comparator and power supply voltage through a first voltage division circuit; the positive input end of the operational amplifier is connected with the power supply voltage through the second voltage division circuit, the output end of the operational amplifier serves as the output end of the rectification comparator, and the power supply end of the operational amplifier is connected with the power supply; and the voltage limiting circuit is connected with the reverse input end of the operational amplifier. The beneficial effects are that square waves / ripples output by the Hall motor / ripple motor are rectified and converted into standard square waves, so that the standard square waves form standard square wave signals to be identified by a single-chip microcomputer.

The invention relates to the technical field of aviation generators, in particular to an aviation high-voltage direct-current power generation mechanism type variable output rectifying device which is composed of three sets of rectifier diodes, each set of rectifier diodes is formed by laminating two rectifier diodes, and after lamination, the rectifier diodes are fixed through screws and nuts. A wiring board is arranged between the two laminated rectifier diodes, a wiring lug and a positioning lug are arranged on the wiring board, the wiring lug is used for connecting three-phase alternating current, and a screw rod penetrates through the positioning lug and is used for circumferential positioning; the three groups of rectifier diodes are connected with the upper confluence plate and the lower confluence plate so as to output direct current outwards; an upper supporting plate and a lower supporting plate are respectively arranged on the outer sides of the upper confluence plate and the lower confluence plate, small holes are formed in the two confluence plates and the two supporting plates, and screw rods penetrate through the small holes and are matched with nuts, so that the overall fixation of the three groups of rectifier diodes is realized; by changing the shapes of the two confluence plates and the two supporting plates, the overall configuration of the whole output rectifying device can be changed.

An electrical power system for a vehicle includes at least one electric machine, one or more power rectifiers, and a plurality of DC channels. The at least one electric machine comprises a plurality of substantially magnetically decoupled multi-phase windings wound in a tooth shape, and the at least one electric machine is mechanically balanced even if one of the plurality of windings is de-energized. The one or more power rectifiers are configured to generate rectified power from power generated by the at least one electric machine. A plurality of DC channels are formed after the at least one power rectifier and configured to provide DC power to one or more loads within the vehicle.

Some embodiments provide irrigation generator systems that include a main conduit comprising an inlet conduit and an outlet conduit; a flow control system positioned within the main conduit; a generator conduit comprising a generator inlet conduit and a generator outlet conduit, wherein the generator inlet conduit is fluidly coupled with the main conduit upstream of the flow control system, the generator outlet conduit is fluidly coupled with the main conduit downstream of the flow control system; and a generator comprising a rotor assembly cooperated with generator conduit to be physically activated by a flow of fluid through the generator conduit causing rotation of the rotor assembly and generates electrical power. The flow control system transitions between a closed state to the open state in response to a water pressure exceeding a pressure threshold.

The utility model belongs to the technical field of three-phase brushless synchronous generators, and particularly relates to a three-phase brushless synchronous generator. A motor shell is fixed on the base, a stator is installed on the inner side wall of the motor shell, a rotating shaft is arranged in the motor shell, a rotor is installed on the rotating shaft, an excitation armature is installed on the rotating shaft on the right side of the stator, a rotating rectifier is installed on the rotating shaft, and excitation magnetic poles are installed on the inner wall of the motor shell. A supporting plate is arranged between the rotor and the rotary rectifier, end covers are installed at the left end and the right end of the motor shell, the left end is a front end cover, and the right end is a rear end cover. Circular grooves are formed in the left end of the front end cover, the right end of the supporting plate and the left end of the rear end cover, filter plates are in threaded connection with the interiors of the circular grooves, and through grooves are formed in the filter plates; and a turning cover is arranged on the motor shell. When the turning cover is opened, the filter plate in the motor shell and the damageable device on the rotary rectifier can be conveniently replaced, the filter plate can be taken down from the rotary shaft through the through groove, and cleaning, maintenance and replacement are convenient.

A rotor assembly for an electric machine includes a first end and a second end, the second end distal from the first end in an axial direction, a first radial wall extending between the first end and the second end and defining an inner cavity, and a second radial wall extending between the first end and the second end, the second radial wall radially-overlying the first radial wall and defining an outer cavity between the first radial wall and the second radial wall.

To provide a controller which is compact, has high operability, suppresses noise, and is excellent in electrical characteristics.SOLUTION: The controller includes a power supply circuit board to which a first voltage is input, and a control circuit board and a system circuit board to which a second voltage smaller than the first voltage is input, the power supply circuit board and the system circuit board are disposed along the bottom surface panel and are disposed side by side in a first direction such that the power supply circuit board is located on the back surface panel side and the system circuit board is located on the front surface panel side, in the plan view of the bottom panel, the control circuit board is disposed to overlap the system circuit board, the system circuit board has a first connector coupled to the robot, and the control circuit board has a second connector coupled to an external device that generates a drive command program of the robot.SELECTED DRAWING: Figure 2

A control device for a human-powered vehicle is provided. The human-powered vehicle includes a generator configured to output electric power, a power storage device electrically connected to the generator, and a component having an actuator actuated by electric power from at least one of the generator and the power storage device. The control device includes a controller electrically connected to at least one of the generator and the power storage device. The controller is configured to control the operating state of the component based on information related to at least one of an output state of the generator and a storage state of the power storage device.

A highly efficient circulator system is provided, useful for hydronic systems, including both heating and cooling systems. The stand-alone circulator motor is controllable by input from certain sensors, preferably thermal sensors, which provide data enabling the controller of the brushless pump motor to vary its flow output to meet changes in systems loads. The circulator has a ceramic permanent magnet rotor, such as a ferrite, with an electronically, preferably sinusoidally, commutated, electro-magnetic stator controlling the input of electrical power.

The invention discloses a twelve-phase rectification generator for simulation fault diagnosis and a use method thereof. The twelve-phase rectification generator comprises a generator set, a peripheral guarantee assembly and a fault simulation control device. The generator set comprises a motor shell and a motor assembly, the motor assembly comprises a motor wind path, an internal fan and a matching part, the motor wind path is arranged in the motor shell and covers a motor stator and a motor rotor, the matching part is arranged in the generator set, and the internal fan is installed on a rotating shaft of the motor rotor; the external guarantee assembly is arranged outside the generator set and is connected with a non-driving end of the generator set; the fault simulation control device comprises detection equipment and a fault machine, the detection equipment is arranged corresponding to the external guarantee assembly, the motor stator, the motor rotor and the matching part, the fault machine is in signal connection with the detection equipment, and the fault machine can control the operation state of the detection equipment; through the control of the fault machine on the detection equipment, the special ring fault of the twelve-phase rectification generator can be comprehensively simulated, and the fault diagnosis capability of students is improved.

The application relates to a magnetic suspension bearing and motor integrated control system, which comprises the following parts: a high-voltage rectification module for rectifying input current into direct current; a motor driving module for receiving direct current bus voltage and driving the motor to operate under the action of a control signal; a DCDC module for converting the direct current bus voltage into low-voltage direct current; a magnetic bearing driving module for outputting driving current to the magnetic bearing under the action of a control signal; and a control system connected with the high-voltage rectification module, the motor driving module and the magnetic bearing driving module respectively, for synchronously acquiring motor operation state information and magnetic bearing operation state information in a control period, completing motor control operation and magnetic bearing control operation in the control period, and outputting control signals for driving the motor driving module and the magnetic bearing driving module under a PWM time sequence, so as to realize the collaborative operation of the magnetic bearing control and the motor control.

An electrical machine comprising a rotatable shaft; an induction generator mechanically coupled to the rotatable shaft and defining a power output connectable with an electrical load, wherein the power output defines a desired constant voltage output; a converter electrically connected with the power output; and a controller connected to the converter, the controller configured to at least one of provide supplemental power at the power output or absorb excess power at the power output.