123 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 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.

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.

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 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.

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 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 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 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.

This invention provides an integrated vector reluctance motor drive and control device for ship hatch covers, relating to the field of motor technology. It includes a motor body, a reducer, an electromagnetic brake, a controller, and a rear cover. By installing a reducer and an electromagnetic brake at both ends of the motor body, and then enclosing the electromagnetic brake inside the rear cover, and integrating the controller within the rear cover, the integrated structure formed by the motor body, reducer, electromagnetic brake, controller, and rear cover is more compact. Furthermore, the reducer exhibits better sealing at both ends, preventing poor contact and corrosion problems caused by marine salt spray environments when applied to ship hatches.

The present invention discloses a structure of a stator-rotor dual-armature winding multi-electromagnetic torque single-air-gap reluctance motor, which includes a stator and a rotor both having salient pole structures. The rotor is sleeved on the outer periphery of the stator, and there is an air gap between the stator and the rotor. The rotor includes a rotor core and a rotor armature winding. The rotor core protrudes inward to form rotor teeth, and the rotor armature winding is wound on the rotor teeth in the structure of a fractional-slot concentrated winding. The stator includes a stator core and a stator armature winding. The stator core protrudes outward to form stator teeth, and the stator armature winding is wound on the stator teeth in the structure of a three-phase symmetrical winding. During normal operation, the two sets of windings are superimposed to output mechanical torque, further improving the torque density, and torque can also be generated when any one set of windings fails, improving the fault tolerance of the motor.

The utility model provides a stator punching sheet of a reluctance motor, belongs to the technical field of motors, and solves the problem that the interval of punching sheets forming a stator core of the reluctance motor is changed after the punching sheets are used for a long time. The punching sheet comprises a punching sheet main body I and a punching sheet main body II, wherein the punching sheet main body I is provided with a mounting hole; a fixed pipe is fixed in the mounting hole; a sliding rod is mounted in the fixed pipe; the sliding rod is provided with a plane part; the top plate is provided with a second chamfer, the second punching sheet body is provided with a limiting pipe, the limiting pipe is provided with a fixing plate, and the fixing plate is fixedly connected with the second punching sheet body through a bolt. The punching sheet has the advantages that the clamping grooves on the sliding rods and the clamping blocks on the sliding plates are clamped to complete the fixed connection between the punching sheet main bodies I; and during contact, the sliding rod is rotated and pushed, so that clamping between the sliding rod and the sliding plate is relieved, and disassembly is facilitated.

An electric drive system for a vehicle, such as a rail vehicle, has a plurality of different drive motors. The motors include at least one permanently excited motor as a drive and at least one further motor selected from the group of asynchronous motor and reluctance motor as a drive motor. The permanently excited motor is powered by an inverter whose power semiconductor has a greater band gap than silicon, and the further motor which is selected from the group of asynchronous motor and reluctance motor is powered by an Si inverter.

The present invention provides a rotor structure and motor for a self-starting hybrid excitation permanent magnet-assisted reluctance motor. The rotor structure includes a rotor core, which is provided with a plurality of magnetic barrier slot groups spaced apart along the circumference of the rotor core. The magnetic barrier slot groups include multiple layers of magnetic barrier slots, at least one layer of which contains at least one permanent magnet unit, and another layer of which contains at least one non-magnetic conductor unit. This permanent magnet-assisted reluctance motor has a step-out protection function. The non-magnetic conductor unit acts as a damping winding. When the motor is operating synchronously, it can divert transient surge currents generated by the rotor under various abnormal conditions to the rotor ends, where they offset each other and return to zero, thereby preventing heating of the rotor structure and demagnetization of the magnetic steel. This rotor structure effectively improves the efficiency and practicality of the motor.

1. Name of the designed product: magnetic resistance motor (D74). 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 utility model discloses a non-contact axial flux vector reluctance motor, which relates to the technical field of motors and comprises an end cover and a casing which are arranged separately. A stator assembly is arranged in the machine shell, a plurality of winding coils distributed in the circumferential direction are arranged on the stator assembly, and all the winding coils are formed by winding on a radial plane and used for generating a magnetic field located on an axial plane. The end cover is cylindrical, a rotor assembly is fixedly arranged in the end cover, the rotor assembly is used for being matched with a magnetic field of an axial plane to rotate with a center shaft of the end cover as a rotating shaft, and a connecting part used for being connected with external equipment is arranged on the face, back on to the machine shell, of the end cover. According to the invention, the stator assembly and the rotor assembly of the disc type motor adopt a split type modular design and a non-contact driving design at the same time, so that the shock resistance of the motor is improved, the rotor and the stator are allowed to have certain radial run-out in the operation process, mechanical loss is avoided, and the disc type motor can better adapt to complex working conditions.

We provide a rotor for a reluctance motor that suppresses torque ripple. [Solution] The rotor is a rotor for a reluctance motor and comprises a rotor core having a rotating shaft, an inner bore through which the rotating shaft is inserted, a plurality of flux barrier portions arranged at equal pitches in the circumferential direction of the rotor around the inner bore, and a yoke portion provided between adjacent flux barrier portions. Each of the plurality of flux barrier portions has a plurality of flux barriers arranged at intervals in the radial direction of the rotor. The rotor core has an outer diameter correction structure in the yoke portion that corrects variations in the outer diameter of the rotor core when the reluctance motor is in operation.

The invention discloses a copper loss minimum control system and method for a variable flux reluctance motor, and the method comprises the steps: converting the electric energy of a DC power supply into a six-phase "AC + DC" mixed current through a six-phase winding and a six-phase inverter, superposing a positive polarity DC voltage (+ Vdc) according to A, C and E phases, and superposing a negative polarity DC voltage (-Vdc) according to B, D and F phases, thereby forming a positive and negative symmetrical current superposition structure. A DSP controller is adopted to carry out dq conversion to obtain a d-axis current component and a q-axis current component; pI control is adopted to generate instruction voltage, the amplitude of a direct current component and the amplitude of an alternating current component of a DC current component and the amplitude of an AC current component are dynamically adjusted, Idc: Iac = 1: 2, the phase current effective value Is = Idc2 + Idc22 is minimum at the moment, and copper loss minimization is achieved. The method does not need an independent magnetic coil, simplifies the structure, improves the efficiency, is suitable for high-efficiency operation in a wide rotating speed range, and is especially suitable for electric vehicles and other scenes with high motor efficiency requirements.

The invention discloses a reluctance motor control method and system based on three-dimensional model parameter observation. A simplified voltage equation of the motor under a synchronous rotation dq0 coordinate system is constructed. Then, a linear expansion state observer is designed based on the equation, d-axis current, q-axis current and 0-axis current are predicted respectively, and errors between the predicted current of each axis and actual sampling current are calculated; current errors exceeding a preset threshold value are equivalent to lumped disturbance, and an independent closed-loop disturbance adjusting system is constructed for a to-be-corrected shaft for self-correction. And the corrected parameters are updated to the prediction model in real time, and dq0-axis reference voltage enabling the current to track the reference value is calculated in combination with a dead-beat prediction current control strategy. And finally, generating a driving signal through coordinate inverse transformation and space vector pulse width modulation. According to the method, the three-dimensional current structure of the motor is fully utilized, and the current prediction precision and the control robustness under parameter change and complex working conditions are effectively improved under the condition that additional signal injection is not needed.

A vernier reluctance motor, comprising a stator and a rotor, wherein a tooth portion of the stator and a tooth portion of the rotor are both of a double salient pole structure; the stator is sleeved on the periphery of the rotor, and an air gap is formed between the stator and the rotor; the stator comprises a plurality of stator teeth and a plurality of stator windings; a two-layer stator winding is wound in a stator slot between every two adjacent stator teeth; each stator winding uses three-phase sinusoidal current with direct-current bias.

The invention relates to a reluctance motor liquid proportional valve which comprises a reluctance motor and a valve body, the reluctance motor comprises a motor base, a coil and a translation iron core, an iron core isolation sleeve is arranged on the motor base, and a valve cavity of the valve body is communicated with a sleeve cavity of the iron core isolation sleeve; a valve rod is arranged in the valve body, the valve rod is connected with the translation iron core and installed in a communicating space of the valve cavity and the sleeve cavity, and the translation iron core can drive the valve rod to linearly move in the communicating space of the valve cavity and the sleeve cavity under the electromagnetic action of the coil and the motor base. Good dynamic sealing of the valve rod in the moving process can be guaranteed, and relatively stable and reliable proportional flow control is carried out.

The invention discloses a fault-tolerant control method for an open-winding doubly salient reluctance motor, mainly relates to the field of doubly salient reluctance motor control, and can realize fault-tolerant control when an inverter power switch tube has an open-circuit fault. The control system mainly comprises a doubly salient reluctance motor, a converter, a direct current power supply and a sensor. Wherein the converter topology adopts a double-inverter topology and is formed by two groups of three-phase inverters. In a vector control mode with direct-current bias, the current stresses of upper and lower bridge arms are different, open-circuit faults are easy to occur, the output efficiency is greatly reduced, and even electrodes are damaged. In order to deal with the situation, the fault-tolerant control method provided by the invention can switch the control mode of the motor on line when the open-circuit fault of the power switch tube occurs, so that the stable operation of the motor is kept. According to the invention, the operation stability of the doubly salient reluctance motor in occasions with high safety requirements, such as automobiles, is improved.

The utility model provides a dustproof sealing wiring structure of a reluctance motor. The dustproof sealing wiring structure of the reluctance motor comprises a bottom plate, a wiring box, a sealing gasket and an annular sealing strip. According to the dustproof sealing wiring structure of the reluctance motor provided by the utility model, the bottom plate is arranged, the junction box is detachably arranged above the bottom plate, the bottom of the junction box is provided with the connecting plate in a bending manner, the connecting plate is fixedly connected with the bottom plate through the bolt, and the bolt penetrates through the connecting plate and is in threaded connection with the bottom plate. A sealing gasket is arranged between the connecting plate and the bottom plate, and the sealing gasket is of an annular structure integrally, so that sealing between the connecting plate and the bottom plate is achieved. In addition, an annular sealing strip is installed on the inner side wall of the junction box, when the junction box is installed on the bottom plate, the annular sealing strip abuts against the bottom plate to achieve second sealing, the dustproof sealing effect can be effectively achieved on the connecting position of the junction box and the bottom plate, and the stability of the wiring position in the operation process of the motor is effectively improved.