226 results about "Reluctance motor" patented technology

The invention is suitable for the field of motor driving and control, and provides a dead-beat predictive current control method and system for a direct-current bias vernier reluctance motor, and the method comprises the steps: obtaining the operation data of a target motor, and carrying out the preprocessing of the obtained operation data; inputting the preprocessed operation data into an extended state observer with coupling compensation, and outputting extended state prediction parameters; inputting the extended state prediction parameter into a dead-beat prediction current control model to obtain a dq0-axis regulation voltage; carrying out coordinate transformation on the adjusting voltage of the dq0 axis, and carrying out space vector pulse width modulation to obtain a switching sequence of dual-inverter SVPWM (Space Vector Pulse Width Modulation); acting the switching sequence on a phase winding of the target motor; according to the method, disturbance caused by voltage coupling is considered in the process of predicting current and disturbance; this allows compensation of voltage coupling interference, thereby reducing the influence of interference caused by parameter changes and coupling voltage, and enhancing dynamic response capability.

The invention relates to the technical field of reluctance motor intelligent control, and discloses a switch reluctance motor intelligent control system and method, and the system comprises a collection module which is used for collecting the inductance, flux linkage and winding current of a magnetic circuit, and a data processing module which is used for processing the collected data, calculating the angular position of a rotor, and outputting an electromagnetic torque. The system comprises a switch reluctance motor, a torque monitoring unit used for monitoring electromagnetic torque of the switch reluctance motor, a control module used for controlling operation of the motor, a fault monitoring module used for monitoring abnormal conditions, and an energy recovery module used for recovering energy generated during braking of the motor. Parameters such as motor torque and angle can be dynamically adjusted according to the motor operation state, and the operation efficiency and response speed of the motor are improved.

The utility model discloses a rotor structure of a permanent magnet auxiliary reluctance motor, which comprises a rotor punching sheet, a plurality of magnetic steel groove groups are fixedly arranged on the rotor punching sheet, each magnetic steel groove group consists of a plurality of layers of magnetic steel grooves, corresponding magnetic steel bodies are arranged in the magnetic steel grooves, the magnetic steel bodies are rectangular, and the magnetic steel bodies are rectangular. The rotor punching sheet is used for a permanent magnet auxiliary reluctance motor with the rotor punching sheet, the motor is provided with a multilayer magnetic steel structure, large reluctance torque can be obtained, for a rotor with N layers of magnetic steel grooves, the types of magnetic steel can be reduced from 2N-1 to N, 2 or 1, the types of magnetic steel can be reduced, and the purchase, production and management costs of the motor can be reduced.

The present invention relates to the technical field of intelligent control of reluctance motors, and discloses an intelligent control system and method for a switched reluctance motor, comprising an acquisition module for acquiring the inductance, magnetic flux and winding current of a magnetic circuit, a data processing module for processing the acquired data and calculating the rotor angular position and outputting the electromagnetic torque, a torque monitoring unit for monitoring the electromagnetic torque of the switched reluctance motor, a control module for controlling the operation of the motor, a fault monitoring module for monitoring abnormal conditions, and an energy recovery module for recovering energy generated during motor braking. The intelligent control system and method integrate control strategies and algorithms, and can dynamically adjust parameters such as motor torque and angle according to the operating status of the motor, thereby improving the operating efficiency and response speed of the motor.

Shallow grooves and deep grooves are formed in the inner surface of a stator at intervals in the circumferential direction, stator teeth are arranged between the shallow grooves and the deep grooves, coils are wound around the stator teeth, and a magnetic field is generated between the two stator teeth corresponding to the shallow grooves; two stator teeth corresponding to the shallow slots are marked as a group, coils on odd groups of stator teeth are sequentially connected in series, coils on even groups of stator teeth are sequentially connected in series, N rotors are arranged, each rotor comprises a rotor body and a connecting shaft penetrating through the rotor body along the axis of the rotor body, each rotor body comprises four surfaces, and a smooth chamfer structure is formed at the joint of every two adjacent surfaces. A positioning protruding part is arranged in the middle of each face and arranged in the length direction of the corresponding face, and when the rotors rotate on the inner surface of the stator, one face of each rotor is always kept to be tightly attached to the inner surface of the stator, so that the air gap is zero, the magnetic flux is increased, and the efficiency of the motor or the generator is improved.

The invention provides a brush reluctance motor, and belongs to the technical field of motor equipment, the brush reluctance motor comprises a stator and a rotor, the stator mainly comprises a stator core, a carbon brush support, a carbon brush and a stator end cover; the rotor mainly comprises a rotor iron core, a rotor armature coil winding, a phase converter and a rotating shaft; the inner side of the stator core is provided with at least two salient poles, and the salient poles are not wound with any form of coil windings; the carbon brush is assembled on the carbon brush bracket, and the carbon brush bracket is fixed on the stator end cover; the stator core is fixed in the shell; the rotor iron core and the phase converter are assembled and fixed on the rotating shaft; an armature coil winding is wound on each rotor core salient pole; a brush AC / DC dual-purpose motor which is simple in structure and good in energy-saving effect is designed and manufactured by utilizing the structural form of a brush motor and the principle that a reluctance motor generates electromagnetic pulling force.

A control module is provided for driving a vehicle relative to a track with a first and second rail both having a reluctance varying over the length of the track The vehicle comprises a first electromagnetic actuator module arranged to interact with the first rail; and a second electromagnetic actuator module arranged to interact with the second rail. The control module arranged to receive data indicating a distances between the electromagnetic actuator modules and the rails, relative positions of variations of the reluctance in the rails relative to the electromagnetic actuator modules. The control module is arranged to, based on the received data, generate a current signals and provide the generated current signals to the respective electromagnetic actuator modules.

The invention provides a reluctance motor sensorless control method and system based on high-frequency voltage correction, and the method comprises the steps: carrying out the sampling of three-phase current outputted by a synchronous reluctance motor, and obtaining three-phase current data; converting the three-phase current to obtain alpha-beta-axis current; processing the alpha-beta axis current and the lagged half-cycle signal thereof to obtain high-frequency alpha-beta axis current; converting the alpha-beta-axis current to obtain a dq-axis current, and processing the dq-axis current and a signal of lagging half cycle of the dq-axis current to obtain a fundamental frequency dq-axis current; subtracting the lagging current from the high-frequency alpha-beta-axis current to obtain a current variable quantity; processing the obtained current variable quantity through a phase-locked loop structure to obtain an estimated rotating speed and an estimated rotor position; and processing the estimated rotating speed and the estimated rotor position to obtain a switching signal, wherein the switching signal is used for controlling the synchronous reluctance motor.

An apparatus for contactless transportation of a carrier is provided. The apparatus includes the carrier, being a substrate carrier or a mask carrier. The apparatus includes a linear reluctance motor for providing both a contactless levitation and a contactless drive of the carrier. The linear reluctance motor includes one or more linear stators defining a transportation track for the carrier. The linear reluctance motor includes a mover attached to the carrier. The linear reluctance motor includes a set of electromagnets and a first magnetic material. The one or more linear stators include the set of electromagnets and the mover includes the first magnetic material, or the mover includes the set of electromagnets and the one or more linear stators include the first magnetic material. The apparatus includes a controller connected to the set of electromagnets.

The invention discloses a reluctance motor traction machine with a brake opening and closing brake arm asynchronous early warning function, and relates to the technical field of elevator equipment. The device comprises a mounting frame, a speed reducer box, a motor, a worm, a worm gear, a transmission shaft, a traction wheel, an electromagnetic coil unit, a brake arm, a brake shoe, a lubricating mechanism, a detecting mechanism and a separating mechanism. According to the hoisting device, through mutual cooperation of the detection mechanism and the separation mechanism, under the condition that any hoisting rope is broken, the hollow connecting rod is separated from the transmission shaft, the hollow connecting rod and the traction wheel are made to be static, transmission of the worm wheel to the traction wheel fails, the traction wheel in the static state enables the elevator car to be static, and breakage of any hoisting rope is avoided; the situation that the elevator car falls due to the fact that the operation of the traction wheel is not stopped in time and the multiple traction ropes are fractured in succession is avoided, the safety level of the reluctance motor traction machine is improved, and the probability of elevator accidents is reduced.

An apparatus for contactless transport of a carrier is provided herein. The apparatus includes a carrier that is a substrate carrier or a reticle carrier. The apparatus includes a linear reluctance motor for providing both non-contact suspension and non-contact driving of the carrier. The linear reluctance motor includes one or more linear stators that define a transport track for the carrier. The linear reluctance motor includes a mover attached to the carrier. The linear reluctance motor includes a set of electromagnets and a first magnetic material. The one or more linear stators include a set of electromagnets and the mover includes a first magnetic material, or the mover includes a set of electromagnets and the one or more linear stators include a first magnetic material. The apparatus includes a controller connected to a set of electromagnets.

The invention relates to the field of motors, and discloses a vector reluctance motor and a control method thereof, and the control method comprises the steps: converting a three-phase current inputted to a motor controller into a current under an alpha-beta coordinate system through Clark conversion, and then converting the current under a d-q coordinate system through Park conversion; after the required d-axis current Id and q-axis current Iq are determined according to the preset target torque P and the target magnetic flux # imgabs0 #, the current d-axis current Id and q-axis current Iq are adjusted; according to the actual operation condition of the motor, current output is adjusted through a PID controller; according to the technical scheme, the operation parameters of the motor are monitored in real time, the parameters of the PID controller are dynamically adjusted based on the motor parameters fed back in real time, through the technical scheme, precise control over the vector magnetic group motor is achieved, and the response rate of the vector magnetic group motor is increased.

The present application relates to the technical field of switched reluctance motors, and provides a switched reluctance motor with an explosion-proof function, including a shelf assembly, a material storage assembly and a handling assembly, a plurality of material receiving assemblies are slidably mounted on the bottom frame, a plurality of linearly evenly distributed first positioning assemblies are arranged on the first support frame, a second positioning assembly corresponding to the first positioning assembly is detachably provided on the material receiving plate, a connecting assembly is slidably mounted on the material receiving plate, and the beneficial effects of the present invention are: preventing impurities in the air from entering the switched reluctance motor, having an explosion-proof function, and driving the circulation start of the fans on both sides by operating the adjustment assembly to realize the switching of the forward and reverse directions of the airflow, filtering the impurities in the airflow through the filter box at the air inlet end, and recoil-blowing away the impurities in the filter box at the exhaust end, realizing the function of self-cleaning of the impurities in the filter box, and further improving the explosion-proof function.

An apparatus for contactless transportation of a carrier is provided. The apparatus includes the carrier, being a substrate carrier or a mask carrier. The apparatus includes a linear reluctance motor for providing both a contactless levitation and a contactless drive of the carrier. The linear reluctance motor includes one or more linear stators defining a transportation track for the carrier. The linear reluctance motor includes a mover attached to the carrier. The linear reluctance motor includes a set of electromagnets and a first magnetic material. The one or more linear stators include the set of electromagnets and the mover includes the first magnetic material, or the mover includes the set of electromagnets and the one or more linear stators include the first magnetic material. The apparatus includes a controller connected to the set of electromagnets.

The invention provides a variable reluctance motor temperature distribution prediction method and prediction system. The method comprises the following steps: dividing and modeling network nodes based on the structure and network precision requirements of a variable reluctance motor; calculating conduction thermal resistance and thermal capacity according to geometric parameters and material parameters of the motor; calculating air gap convection thermal resistance according to the motor working condition and the air gap viscosity coefficient; considering the relative position relationship between the armature winding and the excitation winding and establishing a complete variable reluctance motor thermal network model; calculating iron loss and copper loss by using an empirical formula based on state variables of actual operation of the motor, and taking the iron loss and the copper loss as input sources of the variable reluctance motor thermal network model; and iteratively solving the thermal network model of the variable reluctance motor by using a thermal transient equation to obtain predicted temperature distribution of the variable reluctance motor. The invention provides a complete modeling and prediction method suitable for temperature distribution of the variable reluctance motor, the calculation efficiency and precision are both considered, and powerful support is provided for multi-physics field joint optimization.

The application provides a kind of stator double permanent magnet multi-tooth structure magnetic flux switching motor and its working method, belongs to permanent magnet variable reluctance motor technical field. Including coaxial arrangement stator core and rotor core, still including two sets of permanent magnets, stator core protruding arrangement has multiple equal angle interval arrangement big teeth, form solid slot between adjacent big teeth, each big tooth end is provided with small tooth, and define first virtual slot and two sides second virtual slot, rotor core is provided with multiple rotor teeth. Two sets of permanent magnets are tangential magnetization spoke yoke permanent magnet and radial magnetization slot permanent magnet respectively, spoke yoke permanent magnet is set in second virtual slot, slot permanent magnet is set in solid slot mouth and first virtual slot, the pole pair number of two sets of permanent magnets is equal to the number of big teeth on stator core, and the solid slot between big teeth is embedded with armature winding. Can solve the problem of low utilization rate of iron core and low motor output torque caused by structural defects in prior art traditional permanent magnet magnetic flux switching motor.

A substrate processing system includes a reactor configured to perform at least one substrate processing operation, at least one exhaust pipe connected between the reactor and at least one exhaust port, and a pump assembly configured to pump gas out of the reactor and through the at least one exhaust pipe to the at least one exhaust port. The pump assembly includes at least one motor, and the at least one motor is at least one of a switched reluctance motor or synchronous reluctance motor.

The utility model discloses a winding displacement device for a permanent magnet auxiliary synchronous reluctance motor, relates to the technical field of winding displacement of reluctance motors, and aims to solve the problems that a connecting wire is only bound by a buckle or a ribbon in the conventional winding displacement, the connecting wire cannot be protected, the flexibility of the winding displacement is not high, and the overall practicability needs to be improved. According to the technical scheme, the cable comprises a cable rubber tube, a mounting notch groove is formed in the side surface of the cable rubber tube, a plurality of wear-resistant strips are integrally connected to the outer surface of the cable rubber tube, a plurality of buckle positions are arranged on the outer surface of the cable rubber tube, buckle ends are installed on the buckle positions in a buckled mode, and the buckle ends are connected with the mounting notch groove. One end of the buckle end is integrally connected with a connecting base, a clamping groove is formed in the end face of the connecting base, and permanent magnet steel is installed in the clamping groove in a clamped mode. And the effects of flexible wiring, external protection operation on the connecting line and high practicability are achieved.

In order to improve the energy efficiency and the power-to-weight ratio of an alternating-current asynchronous induction motor, the current direction of a lead frame of the closed reluctance motor surrounds along the axial direction and the end face of a reluctance body to form a closed induction magnetic field, so that the power-to-weight ratio and the energy efficiency can be improved. The motor structure comprises a rotor, a casing, a lead frame and a bearing, or comprises a rotor, a casing, a lead frame, a bearing and a stator, and is characterized in that the rotor comprises a shaft rod and a magnetic resistance body, the casing is a fixing piece for supporting the lead frame and the rotor, the lead frame is a rectangular lead winding, has two phases or three phases and is distributed along the circumference of the rotor at a certain angle, and the magnetic resistance body is arranged on the shaft rod. The rotor is sleeved with the lead frame, the lead frame is electrified with alternating current to form a rotating magnetic field, closed-loop current and a radial magnetic field are generated in the rotor, and the rotating magnetic field drags the rotor to rotate relatively in the lead frame.

1. Name of the designed product: magnetic resistance motor (D68). 2. Use of the designed product: for switched reluctance motor. 3. Design points of the designed product: in shape. 4. Picture or photo that best shows the design points: perspective view 1.

The application provides a vertical-axis phase-synchronous pulse injection control method for a hybrid excitation variable reluctance motor, and belongs to the technical field of motor control. The method comprises the following steps: S1, configuring a hybrid excitation variable reluctance motor, which comprises two sub-phase components, and each sub-phase component is powered by a three-phase four-bridge-arm inverter; S2, constructing a self-induction model under pulse detection signal excitation based on the structure of the hybrid excitation variable reluctance motor; S3, sequentially injecting detection pulse voltages into each phase by adopting the vertical-axis phase-synchronous pulse injection method, obtaining the size of the inductance value of each phase, thereby judging the current sector where the rotor is located, and substituting the bias electric angle into the self-induction model to calculate the bias electric angle; and S4, calculating the electric angle of the rotor magnetic field at the current moment according to the bias electric angle.

The present invention relates to the technical field of motors for well repair machines, and specifically to a low-speed, high-torque switched reluctance motor for well repair machines, which is beneficial to helping the reluctance motor to enhance heat dissipation, thereby improving the ability of the reluctance motor to work for a long time, and at the same time reducing the probability of failure of the reluctance motor after working for a long time, so that the normal operation of the reluctance motor can be guaranteed; through the arrangement of the present invention, the coolant can be recycled, which not only helps to save the cost of the coolant, but also brings convenience to the work of the staff. In addition, the present invention arranges two liquid storage tanks, and by setting the height difference of the liquid storage tanks, the purpose of recycling the coolant can be achieved. At the same time, the adjustment of the liquid storage tank is convenient and quick, the structure is simple, and the time for the staff to operate the liquid outlet tank can be shortened.

The invention discloses a rotor structure and a synchronous reluctance motor, and relates to the technical field of reluctance motors. The device comprises a driving shaft, a plurality of bending grooves are formed in the peripheral side of the driving shaft and subjected to shell extraction treatment, a supporting shaft is coaxially constructed at one end of the driving shaft, the other end of the driving shaft coaxially communicates with an air inlet shaft barrel, and an exhaust groove is formed in the end, connected with the supporting shaft, of the air inlet shaft barrel; one end of the air inlet shaft barrel is open and provided with a protruding block, a conical air opening is formed in the end, away from the air inlet shaft barrel, of the protruding block, and the small-diameter end edge of the conical air opening is smoothly connected with the edge of the end of the air inlet shaft barrel. The wind power assembly is matched with the driving shaft, the backflow air cavity and the heat dissipation air grooves to achieve air circulation so as to dissipate heat of the driving shaft and the stator, and then the liquid cooling circulation assembly can cool hot air, so that the situation that the aging speed of the stator and the rotor in the reluctance motor is increased due to high temperature can be effectively prevented; and the service life of the reluctance motor is prolonged.

This invention discloses a direct control method for torque and axial force of a linear rotary switched reluctance motor. First, the sector containing the flux linkage vector is determined through calculation. Based on the flux linkage hysteresis signal and the torque hysteresis signal, the voltage vector required for control is determined. Then, the axial force is controlled within the control range of (-15°, 15°) where the rotor position is selected. The corresponding axial force voltage vector is selected based on the axial force hysteresis signal. Finally, the operating mode of each power converter switch is determined based on the signs of all voltage vectors. This invention significantly reduces torque and axial force pulsation by directly controlling the motor's torque and axial force, resulting in a faster system response. Operating modes for the torque winding and axial force winding are established separately for torque and axial force, respectively, leading to more reasonable vector selection. Furthermore, no model calculation is performed during the control process, so the control accuracy does not depend on the analytical model, improving the system response speed and simplifying the control strategy.

The present invention discloses a five-level power converter for a switched reluctance motor used in the field of hybrid vehicles. The intermediate level is realized by adding a transverse switch tube module and a transverse diode module to the traditional three-phase case, so as to achieve multi-level output. Based on the connection relationship between the switch tube module, the diode module, the transverse switch tube module and the transverse diode module of each phase in the three-phase, five different states of the output voltage of the switched reluctance motor are realized by turning on and off the two switch tubes of each phase and the transverse switch tube, thereby improving the flexibility of the motor. At the same time, since the excitation and demagnetization of the winding are no longer a single level, the speed of the excitation and demagnetization of the winding can be changed to a certain extent, which is convenient for more in-depth control, and solves the problem that the existing three-level cannot meet the voltage diversity, high fault tolerance and high precision of the motor control, and the diversified selection of excitation and demagnetization, as well as the redundant use of the existing multi-level switch tubes and diodes.

This invention is a new type of Variable Reluctance Motor (VRM) where torque ripple and noise become negligible. The method for eliminating torque ripple is to combine 4 or 6 phased motor design with a new coil configuration which ensures that the magnetic field always move in a pattern that repeat as the different phases in the motor are energized, while also ensuring that magnetic forces are balanced out so net force that pull the shaft out of center always is zero. The design can be a Castellated VRM to produce a CVRM with the more torque and the same properties as the new VRM.

The invention discloses a reluctance rotor design method based on a streamline magnetic barrier and a motor, and belongs to the field of synchronous reluctance motors, a reluctance rotor comprises a magnetic barrier main body, a low-magnetic-conductance tail part and a separated magnetic island, and the design method comprises the following steps: drawing the streamline magnetic barrier main body according to the direction of a magnetic line of force of a d-axis magnetic field by taking increase of d-axis inductance and reduction of q-axis inductance as targets; in order to reduce the magnetic flux leakage of the rotor and reduce the influence on a d-axis magnetic circuit at the same time, the tail part of the magnetic barrier is subjected to narrow opening design, and the endpoint of the magnetic barrier main body and the endpoint of the magnetic barrier tail part are connected through a straight line or an arc to form a low-magnetic-permeability magnetic barrier tail curve; taking all design parameters of the rotor as optimization variables, selecting proper optimization targets and constraint conditions, establishing an optimization problem, and solving the optimization problem to obtain optimal design parameters; and selecting a new material or process mode to realize the integrity of the rotor, and completing the design of the reluctance motor based on the streamline magnetic barrier. According to the invention, the dq-axis reluctance difference can be increased, the salient pole ratio is improved, and the torque output capability of the synchronous reluctance motor is improved.

The utility model discloses a speed regulation device of a permanent magnet auxiliary synchronous reluctance motor, relates to the technical field of permanent magnet auxiliary synchronous reluctance motors, and aims to solve the problems that a speed regulator of a conventional reluctance motor lacks a safety protection structure, cannot be effectively protected and is low in practicability. A sliding groove is formed in the base, a first protective cover and a second protective cover are arranged in the base, the outer side of the first protective cover and the outer side of the second protective cover are fixedly connected with identical sliding blocks, the outer side of the first protective cover is fixedly connected with a first magnet, and the outer side of the second protective cover is fixedly connected with a second magnet. And a speed regulator body is mounted in the center in the base. And the effect of convenient use is achieved.

The utility model discloses an intelligent monitoring device for a reluctance motor, which comprises an intelligent monitoring device main body, the intelligent monitoring device main body comprises an outer shell, heat dissipation nets and a cover plate, the heat dissipation nets are arranged on two sides of the outer shell, and the cover plate is arranged on the upper surface of the outer shell; by designing the dismounting maintenance mechanism, when the intelligent monitoring device main body is used, a rotary adjusting body and a lead screw rotate to move a movable sliding block and a movable connecting frame at the inner bottom end of the outer shell, and the movable connecting frame moves to drive a cover plate to slide in a maintenance opening for closing protection; when the intelligent monitoring device main body is carried to the reluctance motor to carry out current intelligent monitoring, the intelligent monitoring device main body intelligently monitors current and carries the intelligent monitoring device main body to be touched, and when internal thread ends are loosened or fall off and need to be overhauled, the cover plate is moved and opened through reverse operation; and the internal maintenance operation of the intelligent monitoring device main body is performed through the maintenance port, and the operation is simple and convenient during maintenance.

The application provides a rotor wireless excitation type variable magnetic flux reluctance motor, which comprises a DC input end, an inverter circuit, a resonance capacitor, a transmitting coil, a receiving coil, a rectification filter circuit and a motor DC winding; the inverter circuit is connected with an external DC power supply, and the DC power supply is inverted into high-frequency AC power of a set frequency through the inverter circuit, high-frequency current is generated in the transmitting coil and the resonance capacitor element, the high-frequency current generates a high-frequency magnetic field through the transmitting coil, then the high-frequency magnetic field transmits energy to the receiving coil and the resonance capacitor, and the DC winding of the backward motor is powered through the rectification filter circuit and the DC winding. The rotor wireless excitation type variable magnetic flux reluctance motor has the beneficial effects that the DC winding is placed on the rotor, the mutual interference of the magnetic fields in the motor is reduced, the core loss is lower, the heating and heat dissipation are more uniform, and when the number of rotor poles is odd, the electromagnetic force balance can be ensured and the torque density of the motor is increased by adjusting the rotor DC current according to the actual situation.