CN117294098A - Double-armature magnetic regulating motor - Google Patents
Double-armature magnetic regulating motor Download PDFInfo
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- CN117294098A CN117294098A CN202211144624.1A CN202211144624A CN117294098A CN 117294098 A CN117294098 A CN 117294098A CN 202211144624 A CN202211144624 A CN 202211144624A CN 117294098 A CN117294098 A CN 117294098A
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K16/00—Machines with more than one rotor or stator
- H02K16/04—Machines with one rotor and two stators
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K1/00—Details of the magnetic circuit
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K1/00—Details of the magnetic circuit
- H02K1/06—Details of the magnetic circuit characterised by the shape, form or construction
- H02K1/12—Stationary parts of the magnetic circuit
- H02K1/14—Stator cores with salient poles
- H02K1/146—Stator cores with salient poles consisting of a generally annular yoke with salient poles
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K1/00—Details of the magnetic circuit
- H02K1/06—Details of the magnetic circuit characterised by the shape, form or construction
- H02K1/22—Rotating parts of the magnetic circuit
- H02K1/24—Rotor cores with salient poles ; Variable reluctance rotors
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Abstract
The double-armature magnetic regulating motor is used as a wind driven generator, a mixer or a variable speed motor, and consists of a stator, a magnetic regulating ring, a rotor, a collector ring brush, a supporting part, a shell, a converter and a control circuit, and is characterized in that: the magnetic regulating ring is positioned between the stator and the rotor, the stator and the rotor are respectively provided with an armature winding, stator regulation and rotor regulation can be carried out, the number of pole pairs of the stator, the number of magnetic regulating blocks and the number of pole pairs of the rotor form a magnetic regulating matching relationship, and the rotating speed of the magnetic field of the stator, the rotating speed of the magnetic regulating ring and the rotating speed of the rotor form a magnetic regulating motion relationship.
Description
Technical Field
The invention relates to a reluctance motor with three rotating parts. The stator and the rotor are provided with armature windings, stator pole pair numbers, magnet adjusting block numbers and rotor pole pair numbers can be used for carrying out stator adjustment and rotor adjustment, so that a magnet adjusting matching relationship is formed, and a magnet adjusting movement relationship is formed by the stator armature magnetic field rotating speed, the magnet adjusting ring rotating speed and the rotor rotating speed. This is a double armature reluctance motor.
Background
The components of the motor include a stator, a rotor, a support component, a housing, a control circuit, and the like. The motor is typically a cylindrical rotor located inside the center of the motor, and a torus-shaped stator located outside the surrounding rotor, which is an inner rotor radial flux motor. The topology can realize that the cylindrical stator is positioned inside the center of the motor, and the annular rotor is positioned outside to surround the stator, which is an outer rotor radial flux motor. The topology can also realize that the disk-shaped stator is positioned on one side of the motor, the disk-shaped rotor is positioned on the other side of the motor, and the stator rotors all rotate around the motor shaft, which is an axial flux motor. The topology technology can also realize a linear motor with a linear arrangement stator and a linear arrangement rotor which move relatively in parallel. The topology technology applied to the motor with two rotating parts is mature technology, and the topology technology can also be applied to the motor with three rotating parts. The magneto is a motor with three rotating parts. The motor strives to enrich the functions, the magnetism regulating motor with three rotating parts has more functions than the motor with two rotating parts. The traditional motor has only two rotating parts, namely a stator armature magnetic field and a rotor, wherein the stator is mechanically fixed, the stator armature magnetic field intangibly rotates, the rotor is mechanically rotated, and the stator armature magnetic field and the rotor are in synchronous motion relation or asynchronous motion relation; can only be used as a motor. The double-armature magnetic regulating motor comprises a stator armature magnetic field, a magnetic regulating ring and a rotor armature magnetic field, wherein the stator armature magnetic field, the magnetic regulating ring and the rotor armature magnetic field are respectively a rotating part, and a magnetic regulating motion relation is formed among the three rotating parts; can be used as a variable speed motor, a variable speed wind driven generator or a mixer. The invention creatively uses the magnetism regulating effect of the concentric magnetic gear in the motor, replaces the rotating speeds of two magnetic rings with pole pairs in the concentric magnetic gear by using the rotating speed of the stator armature magnetic field and the rotating speed of the rotor armature magnetic field, reforms the unpowered concentric magnetic gear, and forms the motor with three rotating parts, which is called a magnetism regulating motor. The magnetic modulation is a magnetic modulation effect, and the magnetic modulation ring modulates the stator armature magnetic field into a harmonic magnetic field matched with the rotor armature magnetic field, and the rotor armature magnetic field is synchronous with the harmonic magnetic field; the magnetic modulation ring modulates the rotor armature magnetic field into a harmonic magnetic field matched with the stator armature magnetic field, and the stator armature magnetic field is synchronous with the harmonic magnetic field; the magnetic-regulating motion relationship interaction is realized like the concentric magnetic gear three parts. The concentric magnetic gear is a magnetic gear transmission structure in which two magnetic rings with pole pairs are modulated by a magnetic modulation ring with a magnetic modulation block in the middle to form a magnetic modulation effect (Atalah and Howe, 2001). The magnetic modulation matching relation is one of the following equation relations formed by the stator pole pair number, the magnetic modulation block number and the rotor pole pair number: the magnetic regulation matching relation is I, namely the stator pole pair number, the rotor pole pair number and the magnetic regulation block number; magnetic regulation matching relation II, stator pole pair number, magnetic regulation block number = rotor pole pair number; and the magnetic modulation matching relation is three, and the stator pole pair number=the rotor pole pair number+the magnetic modulation block number. The three magnetic modulation motion relations corresponding to the three magnetic modulation matching relations in sequence are as follows: the magnetic regulating motion relation is that the number of pairs of stator poles is equal to the number of stator armature magnetic field rotating speed and the number of pairs of rotor poles is equal to the number of magnetic regulating blocks; magnetic regulating motion relation II, stator pole pair number, stator armature magnetic field rotating speed, magnetic regulating block number, magnetic regulating ring rotating speed and rotor pole pair number, and rotor rotating speed; magnetic regulating motion relation three, stator pole pair number, stator armature magnetic field rotating speed=rotor pole pair number, rotor rotating speed+magnetic regulating block number, and magnetic regulating ring rotating speed. * Is the multiplication number. The three-phase alternating current is sinusoidal alternating current of +a phase, -c phase, +b phase, -a phase, +c phase and-b phase, wherein the three phases of +a phase, +b phase and +c phase are sequentially delayed by 120 degrees of electric phase. The two-phase alternating current is sinusoidal alternating current of +a phase, +b phase, -a phase and-b phase, and the four phases are sequentially delayed by 90 degrees of electric phase. The direct current is a unidirectional current that is constant over a long period of time, and may be a positive current or a negative current over an asynchronous long period of time.
The invention provides a double-armature magnetic regulating motor with armature windings arranged on a stator and a rotor and a magnetic regulating ring arranged between the stator and the rotor, which aims to innovate a motor structure and enrich motor performance. The motor industry requires double armature reluctance motors.
Disclosure of Invention
The double-armature magnetic regulating motor consists of stator, magnetic regulating ring, rotor, collecting ring brush, support part, casing, converter and control circuit. The motor is in circuit connection with electric components such as a power supply and is in mechanical connection with mechanical components such as an oil engine, a wind wheel and a transmission shaft. Is characterized in that: the magnetic regulating ring is positioned between the stator and the rotor, the stator and the rotor are respectively provided with an armature winding, stator regulation and rotor regulation can be carried out, the number of pole pairs of the stator, the number of magnetic regulating blocks and the number of pole pairs of the rotor form a magnetic regulating matching relationship, and the rotating speed of the magnetic field of the stator, the rotating speed of the magnetic regulating ring and the rotating speed of the rotor form a magnetic regulating motion relationship.
The stator consists of a stator core and a stator armature winding, and adopts a maturation technology. The stator core is composed of a stator yoke part and a stator tooth part and is made of soft magnetic materials such as silicon steel materials. The stator armature winding is formed by winding a wire, and the winding form comprises a yoke winding and a tooth winding, wherein the yoke winding is wound around a stator yoke part, and the tooth winding is wound around a stator tooth part. The stator armature winding circulates three-phase alternating current, two-phase alternating current or direct current to form an intangible stator armature magnetic field, has the stator pole pair number and has the stator armature magnetic field rotating speed. The formation of the armature field by the tooth windings is a well established technique. The process of forming the armature magnetic field by the yoke windings is that the yoke magnetic field is formed by the armature current flowing through each yoke winding, the yoke magnetic fields are overlapped in the same direction, the yoke magnetic fields are converged in different directions, and the tooth magnetic field converged in the nearest tooth part to form the tooth part facing the rotor is the armature magnetic field. The yoke winding through which the forward current flows forms a clockwise yoke magnetic field is a positive yoke winding. The stator armature winding is in circuit connection with the current transformer.
The magnetic adjusting ring consists of a magnetic adjusting block, an insulating block and a ring body and is positioned between the stator and the rotor. Is a mature technology. The magnetic regulating blocks are made of soft magnetic materials, such as silicon steel materials, and are uniformly distributed along the circumferential direction of the magnetic regulating ring. The insulating blocks are made of non-magnetic conductive materials, such as epoxy resin materials or air, and are uniformly arranged in the intervals of the magnetic regulating blocks along the circumferential direction. The ring body is used for keeping the positions of the magnetic regulating block and the insulating block and keeping the shape of the magnetic regulating ring. The gravity center of the magnetic adjusting ring coincides with the axis of the rotor. The magnetic adjusting ring can mechanically rotate and has the rotating speed of the magnetic adjusting ring.
The rotor consists of a rotor core, a rotor shaft and a rotor armature winding, and is a mature technology. The rotor core is composed of a rotor yoke part and a rotor tooth part, and adopts soft magnetic materials, such as silicon steel materials, which is a mature technology. The rotor mechanically rotates with a rotor mechanical rotational speed. The rotor armature winding is formed by winding a wire, the winding form comprises a yoke winding and a tooth winding, the yoke winding and the tooth winding are wound around the yoke part and the tooth part of the rotor core respectively, and three-phase alternating current, two-phase alternating current or direct current are circulated to form a rotor armature magnetic field, the rotor armature magnetic field has the rotor pole pair number, and the rotor armature magnetic field rotating speed is provided. The armature winding of the rotor is connected with the current transformer through a collector ring brush to form a circuit. Rotor rotation includes both tangible rotor mechanical rotation and intangible rotor armature field rotation, rotor speed = rotor mechanical speed + rotor armature field speed, rotor armature field speed being the speed of rotor armature field relative to the rotor machine. The rotor designation is used to distinguish the component from other components and does not indicate that the component is rotating. When the invention is used as a wind driven generator or a variable speed motor, the rotor does not rotate, and the rotor can be also called a second stator.
The stator armature magnetic field, the magnet adjusting ring and the rotor are three rotating parts which can rotate relatively to each other. The rotation comprises zero rotation speed, and the rotation speed of an armature magnetic field is zero when the armature winding circulates direct current. The stator pole pair number, the magnet adjusting block number and the rotor pole pair number form a magnet adjusting matching relationship, and the magnet adjusting matching relationship is one of the following equation relationships: the magnetic regulation matching relation is I, namely the stator pole pair number, the rotor pole pair number and the magnetic regulation block number; magnetic regulation matching relation II, stator pole pair number, magnetic regulation block number = rotor pole pair number; and the magnetic modulation matching relation is three, and the stator pole pair number=the rotor pole pair number+the magnetic modulation block number. The present invention is not limited to the structural form of the stator. The invention is not limited to the structural form of the rotor, and the pole pair numbers of the stator and the rotor form a magnetic modulation matching relationship.
The collector ring electric brush comprises a plurality of sets of collector ring electric brushes, and is a mature technology. The brushes of the slip ring brushes are continuously held in contact with the slip ring. The control circuit and the current transformer supply current to the armature winding of the rotor through the slip ring brushes.
The supporting member is composed of a bearing, a bracket, and the like. The casing protects the motor. Mature technology is adopted.
The current transformer is a mature component capable of changing the frequency, amplitude, phase and phase sequence of winding current. The current transformer is connected with the power supply and the stator armature winding, the frequency, amplitude, phase and phase sequence of the current of the stator armature winding are changed, and the rotating speed of the magnetic field of the stator is changed, so that the change of the rotating speeds of the three rotating parts according to the magnetic regulating movement relation is stator regulation. Stator conditioning may result in current input to the stator armature winding or the stator armature winding generating current flowing. The current transformer is connected with the power supply and the rotor armature winding, the current transformer changes the frequency, amplitude, phase and phase sequence of the current of the rotor armature winding, and changes the rotating speed of the rotor armature magnetic field, so that the change of the rotating speeds of the three rotating parts according to the magnetic regulating movement relation is rotor regulation. Rotor regulation may result in current input to the rotor armature winding to consume power or the rotor armature winding to generate current flow. The power source is from a power supply, and the power generation energy source is led to the power supply and is controlled by the converter and the control circuit. The converter adopts a mature technology. The power supply adopts mature technology.
The control circuit controls the current of the stator armature winding, controls the stator to adjust, controls the current of the rotor armature winding, controls the rotor to adjust, and also controls the current transformer. The control circuit adopts a mature technology.
Sequentially corresponding to the matching relation of the magnetism modulation, wherein the rotating speed of the magnetic field of the stator armature and the rotating speed of the magnetism modulation ring and the rotating speed of the rotor form one of the following magnetism modulation motion relations: the magnetic regulating motion relation is that the number of pairs of stator poles is equal to the number of stator armature magnetic field rotating speed and the number of pairs of rotor poles is equal to the number of magnetic regulating blocks; magnetic regulating motion relation II, stator pole pair number, stator armature magnetic field rotating speed, magnetic regulating block number, magnetic regulating ring rotating speed and rotor pole pair number, and rotor rotating speed; magnetic regulating motion relation three, stator pole pair number, stator armature magnetic field rotating speed=rotor pole pair number, rotor rotating speed+magnetic regulating block number, and magnetic regulating ring rotating speed. The torque of the three rotating parts is also interactive.
In various embodiments, the oil engine inputs oil engine power, the wind wheel inputs mechanical power, and the transmission shaft outputs mechanical power. When the magnetic regulating ring is mechanically connected with the oil machine, the rotor is mechanically connected with the transmission shaft, the rotor armature winding circuit is connected with the current transformer, and the stator armature winding circuit is connected with the current transformer, so that the magnetic regulating ring is a hybrid motor. The aim of the stator adjustment and the rotor adjustment of the mixer is that the input rotation speed of the oil engine is stable, the rotation speed change range of the transmission shaft is large, and the rotation speed of the oil engine stably operates in a high-efficiency rotation speed area on the premise of large-scale speed change of the transmission shaft. At this time, under the condition that the rotation speed of the oil engine is stable, the stator adjustment and the rotor adjustment can both generate electricity to output electric power to the storage battery or input electric power from the storage battery, so that the power of the mechanical power output by the transmission shaft can be adjusted; the stator adjusting power generation can be controlled by the control circuit to be used for adjusting the rotor, so that the torque of the mechanical power output by the transmission shaft can be adjusted. When the magnetic regulating ring is mechanically connected with the wind wheel, the rotor is locked, the armature winding circuit of the rotor is connected with the control circuit, and the armature winding circuit of the stator is connected with the converter, so that the wind driven generator is formed. The stator of the wind driven generator is regulated to ensure that the rotating speed of the wind wheel has a large range of variation, and the generating frequency of the armature winding of the rotor is stable and convenient for grid connection. In this case, the current transformer mainly adjusted by the stator and connected with the armature winding circuit of the rotor can be disabled, and the collector ring brush can be omitted. When the stator and the rotor are locked without mechanical rotation speed, the stator armature winding inputs current with stable frequency, the rotor armature winding inputs or outputs current through the converter, and the magnetic regulating ring is mechanically connected with the transmission shaft as an output end, thus the variable-speed double-armature magnetic regulating motor is obtained. At this time, the collector ring brush can be omitted, and the armature winding of the rotor with smaller power can control the mechanical power output by the whole motor by converting. The transmission shaft is an external part for outputting mechanical power to the power utilization mechanism. The oil engine is a fuel power equipment with mature technology.
The traditional motor is only provided with two rotating parts, namely a stator armature magnetic field and a rotor, and cannot be used as a mixer. Conventional ac pole-changing motors can change speed, but cannot change speed continuously. The traditional mixer adopts a planet row machine or adopts a concentric magnetic gear, and is provided with three rotating parts, wherein the first rotating part is mechanically connected with an oil machine, the second rotating part is mechanically connected with a first motor E1, and the third rotating part is mechanically connected with a second motor E2. The traditional mixer needs to be provided with two motors E1 and E2, and has complex structure and large volume. The traditional double-fed alternating current asynchronous variable speed wind driven generator needs three sets of collector ring brushes to adjust the exciting current frequency of the three-phase rotor so as to be variable in speed. The invention creatively uses the magnetism regulating effect of the concentric magnetic gear in the motor, utilizes the magnetic field rotating speed of the stator armature and the magnetic field rotating speed of the rotor armature to replace the mechanical rotating speed of two magnetic rings with pole pairs in the concentric magnetic gear, and the formed double-armature magnetism regulating motor is provided with three rotating parts, and can be used as a mixer, a motor with continuous speed change and a variable speed wind driven generator; this is an innovation in the structure of the motor. The invention has the advantages that: compared with the traditional motor, the invention has rich functions and can continuously change speed; compared with the traditional mixer, the invention has simple structure, small volume and two motors saving; compared with the traditional doubly-fed alternating current asynchronous variable-speed wind driven generator, the invention can adjust the frequency of the generated power without collecting a ring brush. The same double armature reluctance motor has not been used heretofore.
The power supply, the power grid, the grid connection, the stator core, the rotor shaft, the armature winding, the yoke winding, the tooth winding, the exciting winding, the armature magnetic field, the pole pair number, the magnet adjusting ring, the magnet adjusting block number, the concentric magnetic gear and the rotating component are all mature technologies.
Drawings
Fig. 1 is a cross-sectional view of a double armature motor, which is also a schematic diagram of embodiment 1.
Fig. 2 is a cross-sectional view of a double-armature motor, which is also a schematic view of embodiment 1.
Fig. 3 is a cross-sectional view of a double-armature motor, which is also a schematic diagram of embodiment 2.
Fig. 4 is a section view in axial direction A-A of fig. 1, and also in axial direction of all wind power generators.
Fig. 5 is an axial section B-B of fig. 2, and is also an axial section of all variable speed motors.
Fig. 6 is an axial section C-C of fig. 3, also an axial section of all mixers.
In each figure, 1 is a stator core yoke part, 2 is a stator armature winding, 3 is a stator core tooth part, 4 is a magnetism regulating block, 5 is an insulating block, 6 is a rotor core, 7 is a rotor armature winding, 8 is a rotor shaft, 11 is a magnetism regulating ring, 12 is a stator, 13 is a rotor, 14 is an input end, 15 is an output end, and 16 is a collecting ring of a collecting ring brush. Each armature winding is shown by a few turns of wire (small circles), and the actual number of turns of wire is set as actually needed. The phase sequence number of each yoke winding is marked in the yoke part, the phase sequence number is a mature technology of marking the armature winding, the stator armature winding is marked by plus and minus lowercase English letters, and the rotor armature winding is marked by plus and minus uppercase English letters. The support member, the housing, the control circuit, etc. are not shown, and the ring body of the magnetism regulating ring is not shown. The power supply, wind wheel, oil engine and generator are not shown. The brushes of the slip ring brushes are not shown. The components are merely illustrative of the relationship and do not reflect actual dimensions.
Detailed Description
Example 1: the double-armature magnetic regulating motor consists of stator, magnetic regulating ring, rotor, collecting ring brush, support part, casing, converter and control circuit.
The stator is composed of a stator core and an armature winding, is an outer stator and adopts a maturation technology. The stator core has six teeth of six yoke sections. The armature winding adopts six sections of yoke windings, is connected with the converter circuit, and circulates three-phase alternating current to form a stator armature magnetic field. Six sections of yoke windings are arranged clockwise, three-phase alternating currents of +a phase, -c phase, +b phase, -a phase, +c phase and-b phase are sequentially and respectively circulated, a stator armature magnetic field is formed, the rotation direction of the magnetic field is clockwise, and the number of stator pole pairs is 1.
The magnetic adjusting ring consists of a magnetic adjusting block, an insulating block and a ring body and is positioned between the stator and the rotor. The three magnetic regulating blocks are made of soft magnetic silicon steel materials and are uniformly arranged on the ring body. The three insulating blocks are made of epoxy resin materials and are arranged between the magnetic regulating blocks. The ring body is used for keeping the positions of the magnetic regulating block and the insulating block and keeping the shape of the magnetic regulating ring.
The rotor consists of a rotor core, a rotor shaft and a rotor armature winding. The rotor core is composed of a rotor yoke portion and rotor tooth portions. The rotor core has twelve teeth and twelve yoke sections. The rotor armature winding is formed by winding wires, is a twelve-section yoke winding, circulates three-phase alternating current to form a rotor armature magnetic field, the twelve-section yoke winding is clockwise arranged, and sequentially circulates three-phase alternating current of +A phase, -C phase, +B phase, -A phase, +C phase and-B phase respectively to form the rotor armature magnetic field, the rotation direction of the magnetic field is clockwise, and the number of pairs of rotor poles is 2. The armature winding of the rotor is connected with the current transformer through a collector ring brush to form a circuit.
The stator armature magnetic field, the magnet adjusting ring and the rotor are three rotating parts which can rotate relatively to each other. The stator pole pair number, the magnet adjusting block number and the rotor pole pair number form a magnet adjusting matching relation one: stator pole pair number + rotor pole pair number = magnet modulating block number.
The supporting component consists of a bearing, a bracket and the like, and the shell protects the motor. Mature technology is adopted.
The current transformer is a mature component. The current transformer is connected with the power supply and the stator armature winding, the frequency, amplitude, phase and phase sequence of the current of the stator armature winding are changed, and the rotating speed of the magnetic field of the stator is changed, so that the change of the rotating speeds of the three rotating parts according to the magnetic regulating movement relation is stator regulation. The current which is caused by the stator adjustment is input into the stator armature winding to consume electricity or the stator armature winding generates electricity to flow out. The current transformer is connected with the power supply and the rotor armature winding, the current transformer changes the frequency, amplitude, phase and phase sequence of the current of the rotor armature winding, and changes the rotating speed of the rotor armature magnetic field, so that the change of the rotating speeds of the three rotating parts according to the magnetic regulating movement relation is rotor regulation. The current which is caused by rotor adjustment is input into the rotor armature winding to consume electricity or the rotor armature winding generates electricity to flow out.
The control circuit controls the current of the stator armature winding, controls the stator to adjust, and controls the current of the rotor armature winding and controls the rotor to adjust. The control circuit also controls the converter. The control circuit adopts a mature technology. The power supply adopts mature technology.
The rotation speed interaction of the three rotating parts can be used as a mixer, a wind power generation system or a variable speed motor. The first magnetic modulation motion relation is: stator pole pair number 1 is the stator armature magnetic field rotating speed+rotor pole pair number 2 is the rotor rotating speed=magnet regulating block number 3 is the magnet regulating ring rotating speed; rotor speed = rotor mechanical speed + rotor armature winding speed. Stator adjustment forms one speed change and rotor adjustment forms another speed change. The torque of the three rotating parts is also interactive.
The magnetic regulating ring is mechanically connected with the oil machine, the rotor is mechanically connected with the transmission shaft, the rotor armature winding circuit is connected with the current transformer, and the stator armature winding circuit is connected with the current transformer to form the hybrid motor. See fig. 6. The aim of the stator regulation of the mixer is that the input rotation speed of the oil engine is stable, the rotation speed variation range of the transmission shaft is large, and the rotation speed of the oil engine stably operates in a high-efficiency rotation speed area on the premise of large-scale speed change of the transmission shaft. The stator adjusting method comprises the following steps: the rotation speed of the oil engine is stable, the stator armature magnetic field and the oil engine rotate in the same direction, the stator generates electricity, the electric power is output from the mixer, and the power which is not used up by the transmission shaft is used for generating electricity. The stator armature magnetic field and the transmission shaft rotate in opposite directions, so that the stator electricity is input into the mixer, and the electric power and the oil engine power are simultaneously supplied to the transmission shaft. The rotating speed of the oil engine is zero, the transmission shaft rotates, the stator armature magnetic field passively rotates, and the outflow current is the power generated by the stator for regeneration and recovery. The stator power generation can flow to a power supply through the current transformer and the control circuit, and the stator power consumption can be derived from the power supply through the control circuit and the current transformer. The rotor adjusting method comprises the following steps: the rotation speed of the oil engine is stable, and the rotor armature magnetic field and the oil engine rotate in the same direction, so that the rotor generates electricity to output electricity from the mixer. The rotor armature magnetic field and the transmission shaft rotate reversely, so that the rotor electricity is input into the mixer. The rotating speed of the oil engine is zero, the transmission shaft rotates, the armature magnetic field of the rotor passively rotates, and the outflow current is the power recovered by the rotor power generation regeneration. The rotor electricity generation can flow to a power supply through a converter and a control circuit, and the rotor electricity consumption can be derived from the power supply through the control circuit and the converter. When the stator generates electricity and the electric energy of the rotor is changed through the control circuit, the effect of adjusting the mechanical power output torque of the mixer is good.
The magnetic regulating ring is mechanically connected with the wind wheel to lock the rotor, the armature winding of the rotor generates electricity, the armature winding of the stator is connected with the current transformer to form a wind driven generator, and the circuit of the armature winding of the stator is connected with the control circuit to output electricity. See fig. 4. The generator rotor can be omitted from regulation, a current transformer connected with a rotor armature winding circuit can be omitted, and a collector ring brush can be omitted. The stator is adjusted to ensure that the rotating speed of the wind wheel has a large change range, the rotating speed of the armature winding of the rotor is stable, the generating frequency of the armature winding of the rotor is stable, and the generated power is convenient for grid connection. The stator adjusting method comprises the following steps: the rotation of the magnet adjusting ring causes the rotation of the rotor armature magnetic field, the rotation speed of the rotor armature magnetic field is stable, the generation of the rotor armature winding is stable, when the rotation speed of the wind wheel is increased, the stator armature magnetic field and the wind wheel rotate in the same direction, and the stator generates electricity so as to reduce the rotation speed of the rotor armature magnetic field; when the rotating speed of the wind wheel is reduced, the armature magnetic field of the stator and the wind wheel reversely rotate, and the stator is powered so as to increase the rotating speed of the armature magnetic field of the rotor; the stator power generation flows to the power grid through the current transformer and the control circuit, and the stator power consumption is derived from the power grid through the control circuit and the current transformer. Because the rotor is a second stator at this time, the roles of the second stator and the stator are exchanged, namely, a rotor armature winding circuit is connected with a converter, a stator armature winding is used for generating electricity, the second stator is developed to regulate the rotation speed of a stator armature magnetic field, and the frequency of the stator armature winding for generating electricity is stabilized; such exchange is also possible.
The magnetic regulating ring is mechanically connected with the transmission shaft to lock the rotor, the armature winding of the rotor is supplied with current with stable frequency, the armature winding circuit of the stator is connected with the converter to develop stator adjustment to control the rotating speed of the magnetic regulating ring, and the variable-speed motor is formed. See fig. 5. The stator power generation can reduce the rotating speed of the magnetic regulating ring, the stator power utilization can improve the rotating speed of the magnetic regulating ring, and the converter with smaller capacity connected with the stator armature winding circuit can control the continuous speed change of the whole motor. The voltage of the armature winding of the stator is reduced so as to control the field weakening of the whole motor. In this case, the rotor adjustment may be omitted, the current transformer connected to the rotor armature winding circuit may be omitted, and the slip ring brushes may be omitted. At this time, the rotor is a second stator, roles of the second stator and the stator are exchanged, the stator armature winding is fed with stable current, the rotor armature winding is connected with the current transformer in a circuit, and the second stator is used for adjusting to control the rotating speed of the magnetic adjusting ring.
If the stator structure of the motor is changed into: the stator core is provided with four teeth of four sections of yoke parts, the stator armature winding adopts four sections of yoke windings, and is connected with the converter circuit, and two-phase alternating current is circulated to form a stator armature magnetic field. The four yoke windings are arranged clockwise, two-phase alternating currents of +a phase, +b phase, -a phase and-b phase are sequentially and respectively circulated, a stator armature magnetic field is formed, the rotation direction of the magnetic field is clockwise, and the number of pairs of stator poles is 2. The control circuit and the converter of the stator are correspondingly adjusted to be a two-phase control circuit and a two-phase converter. The rotor structure is changed into: the rotor core is provided with six tooth six-section yokes, the rotor armature winding adopts six-section yoke windings, the six-section yoke windings are connected with a converter circuit, three-phase alternating current flows to form a rotor armature magnetic field, the six-section yoke windings are arranged clockwise, three-phase alternating current of +A phase, +B phase, +C phase, +A phase, +B phase and +C phase respectively flow in sequence to form a rotor armature magnetic field, the rotating direction of the magnetic field is clockwise, and the number of pairs of rotor poles is 2. The magnetic regulating ring, the collector ring brush, the supporting part and the shell are unchanged. As in fig. 2. The matching relation of the magnetic modulation of the motor is unchanged, the relation of the magnetic modulation motion is unchanged, and the motor is used as a mixer, a wind power generation or a variable speed motor.
The combination of the stator pole pair number, the magnetism regulating block number and the rotor pole pair number in this embodiment is 1/3/2 in sequence, and accords with the magnetism regulating matching relationship one, and other combinations are as follows: 1/4/3, 1/5/4, 2/3/1, 3/4/1 or 1/2/1, etc., all combinations conforming to the first matching relationship of magnetic modulation can form a double-armature magnetic modulation motor like the embodiment, and all combinations belong to the protection scope of the invention.
Example 2: the double-armature magnetic regulating motor II consists of a stator, a magnetic regulating ring, a rotor, a collecting ring brush, a supporting part, a shell, a converter and a control circuit.
The stator is composed of a stator core and an armature winding, is an outer stator and adopts a maturation technology. The stator core has six teeth of six yoke sections. The armature winding adopts six sections of yoke windings, is connected with the converter circuit, and circulates three-phase alternating current to form a stator armature magnetic field. Six sections of yoke windings are arranged clockwise, three-phase alternating currents of +a phase, -c phase, +b phase, -a phase, +c phase and-b phase are sequentially and respectively circulated, a stator armature magnetic field is formed, the rotation direction of the magnetic field is clockwise, and the number of stator pole pairs is 1.
The magnetic regulating ring consists of magnetic regulating blocks, insulating blocks and ring bodies, and is positioned between the stator and the rotor, and is a mature technology. The two magnetic regulating blocks are made of soft magnetic silicon steel materials and are circumferentially arranged on the ring body. The two insulating blocks are made of epoxy resin materials and are arranged between the magnetic regulating blocks. The ring body is used for keeping the positions of the magnetic regulating block and the insulating block and keeping the shape of the magnetic regulating ring.
The rotor consists of a rotor core, a rotor shaft and a rotor armature winding. The rotor core is composed of a rotor yoke portion and rotor tooth portions. The rotor core has nine teeth and nine yoke sections. The rotor armature winding is formed by winding wires, is nine-section yoke winding, circulates three-phase alternating current to form a rotor armature magnetic field, the nine-section yoke winding is clockwise arranged, and sequentially circulates three-phase alternating current of +A phase, +B phase, +C phase, +A phase, +B phase and +C phase respectively to form the rotor armature magnetic field, the rotating direction of the magnetic field is clockwise, and the number of pairs of rotor poles is 3. The armature winding of the rotor is connected with the current transformer through a collector ring brush to form a circuit.
The stator armature magnetic field, the magnet adjusting ring and the rotor are three rotating parts which can rotate relatively to each other. The stator pole pair number, the magnet adjusting block number and the rotor pole pair number form a magnet adjusting matching relationship II: stator pole pair number + modulating block number = rotor pole pair number.
The support member is composed of a bearing, a bracket, and the like. The casing protects the motor. Mature technology is adopted.
The current transformer is a mature component. The current transformer is connected with the power supply and the stator armature winding, the frequency, amplitude, phase and phase sequence of the current of the stator armature winding are changed, and the rotating speed of the magnetic field of the stator is changed, so that the change of the rotating speeds of the three rotating parts according to the magnetic regulating movement relation is stator regulation. The current which is caused by the stator adjustment is input into the stator armature winding to consume electricity or the stator armature winding generates electricity to flow out. The current transformer is connected with the power supply and the rotor armature winding, the current transformer changes the frequency, amplitude, phase and phase sequence of the current of the rotor armature winding, and changes the rotating speed of the rotor armature magnetic field, so that the change of the rotating speeds of the three rotating parts according to the magnetic regulating movement relation is rotor regulation. The current which is caused by rotor adjustment is input into the rotor armature winding to consume electricity or the rotor armature winding generates electricity to flow out.
The control circuit controls the current of the stator armature winding, controls the stator to adjust, and controls the current of the rotor armature winding and controls the rotor to adjust. The control circuit also controls the converter. The control circuit adopts a mature technology. The power supply adopts mature technology.
The rotation speed interaction of the three rotating parts can be used as a mixer, a wind power generation system or a variable speed motor. The second magnetic regulating motion relation is: stator pole pair number 1 is the stator armature magnetic field rotating speed+the magnet regulating ring rotating speed 2 is the magnet regulating ring rotating speed = rotor pole pair number 3 is the rotor rotating speed; rotor speed = rotor mechanical speed + rotor armature winding speed. Stator adjustment forms one speed change and rotor adjustment forms another speed change. The torque of the three rotating parts is also interactive.
The magnetic regulating ring is mechanically connected with the oil machine, the rotor is mechanically connected with the transmission shaft, the rotor armature winding circuit is connected with the current transformer, and the stator armature winding circuit is connected with the current transformer to form the hybrid motor. See fig. 6. The aim of the stator regulation of the mixer is that the input rotation speed of the oil engine is stable, the rotation speed variation range of the transmission shaft is large, and the rotation speed of the oil engine stably operates in a high-efficiency rotation speed area on the premise of large-scale speed change of the transmission shaft. The stator adjusting method comprises the following steps: the rotation speed of the oil engine is stable, and the stator armature magnetic field and the oil engine rotate reversely, so that the stator generates electricity and outputs electricity from the mixer. The stator armature magnetic field and the transmission shaft rotate in the same direction, so that the stator is powered by electric power, and electric power is input to the mixer. The rotating speed of the oil engine is zero, the transmission shaft rotates, the stator armature magnetic field passively rotates, and the outflow current is the power generated by the stator for regeneration and recovery. The stator power generation can flow to a power supply through the current transformer and the control circuit, and the stator power consumption can be derived from the power supply through the control circuit and the current transformer. The rotor adjusting method comprises the following steps: the rotation speed of the oil engine is stable, and the rotor armature magnetic field and the oil engine rotate in the same direction, so that the rotor generates electricity to output electricity from the mixer. The rotor armature winding is supplied with current, and the rotor armature magnetic field and the transmission shaft reversely rotate, so that the rotor electricity is used for inputting electric power to the mixer. The rotating speed of the oil engine is zero, the transmission shaft rotates, the armature magnetic field of the rotor passively rotates, and the outflow current is the power recovered by the rotor power generation regeneration. The rotor electricity generation can flow to a power supply through a converter and a control circuit, and the rotor electricity consumption can be derived from the power supply through the control circuit and the converter. When the stator generates electricity and the electric energy of the rotor is changed through the control circuit, the effect of adjusting the mechanical power output torque of the mixer is good.
The magnetic regulating ring is mechanically connected with the wind wheel to lock the rotor, the armature winding circuit of the rotor is connected with the control circuit to output power, and the armature winding circuit of the stator is connected with the converter to form the wind driven generator. See fig. 4. The generator rotor can be omitted from regulation, a current transformer connected with a rotor armature winding circuit can be omitted, and a collector ring brush can be omitted. The stator is adjusted to ensure that the rotating speed of the wind wheel has a large change range, the rotating speed of the armature winding of the rotor is stable, the generating frequency of the armature winding of the rotor is stable, and the generated power is convenient for grid connection. The stator adjusting method comprises the following steps: the rotation of the magnet adjusting ring causes the rotation of the rotor armature magnetic field, the rotation speed of the rotor armature magnetic field is stable, when the rotation speed of the wind wheel is increased, the stator armature magnetic field and the wind wheel reversely rotate, and the stator generates electricity so as to reduce the rotation speed of the rotor armature magnetic field; when the rotating speed of the wind wheel is reduced, the armature magnetic field of the stator and the wind wheel rotate in the same direction, and the stator is powered so as to increase the rotating speed of the armature magnetic field of the rotor; the stator power generation flows to the power grid through the current transformer and the control circuit, and the stator power consumption is derived from the power grid through the control circuit and the current transformer. At this time, the rotor is a second stator, roles of the second stator and the stator are exchanged, the stator armature winding is used for generating electricity, the rotor armature winding is in circuit connection with the current transformer, and the second stator is used for adjusting to stabilize the frequency of the stator armature winding for generating electricity.
The magnetic regulating ring is mechanically connected with the transmission shaft to lock the rotor, the armature winding of the rotor is supplied with current with stable frequency, the armature winding circuit of the stator is connected with the converter to develop stator adjustment to control the rotating speed of the magnetic regulating ring, and the variable-speed motor is formed. See fig. 5. The stator power generation can reduce the rotating speed of the magnetic regulating ring, the stator power utilization can improve the rotating speed of the magnetic regulating ring, and the converter with smaller capacity connected with the stator armature winding circuit can control the continuous speed change of the whole motor. The voltage of the armature winding of the stator is reduced so as to control the field weakening of the whole motor. In this case, the rotor adjustment may be omitted, the current transformer connected to the rotor armature winding circuit may be omitted, and the slip ring brushes may be omitted. At this time, the rotor is a second stator, roles of the second stator and the stator are exchanged, the stator armature winding is fed with stable current, the rotor armature winding is connected with the current transformer in a circuit, and the second stator is used for adjusting to control the rotating speed of the magnetic adjusting ring.
The combination of the stator pole pair number, the magnetism regulating block number and the rotor pole pair number in this embodiment is 1/2/3 in sequence, and accords with the magnetism regulating matching relationship two, and other combinations are as follows: 1/3/4, 1/4/5, 2/1/3, 3/1/4, 2/2/4 or 2/3/5, etc., all combinations conforming to the second matching relationship of magnetic modulation can form a double-armature magnetic modulation motor like the embodiment, and all combinations belong to the protection scope of the invention. All other combinations conforming to the magnetic modulation matching relation III can form a double-armature magnetic modulation motor like the embodiment.
In the above embodiments, the indexes such as pole arc, tooth width, tooth height (extremely high), tooth shape, yoke thickness, wire diameter, number of turns, detailed property of the magnetic modulation ring and detailed property of the rotor of the stator are not shown, and all the indexes are optimized and selected by adopting mature technology. The stator armature winding of each embodiment is mainly a yoke winding, and the method of changing the armature winding into a tooth winding is precedent, see 2022, 3, and claims that the invention is a double-pole-changing double-feed asynchronous motor.
Claims (1)
1. The double-armature magnetic regulating motor consists of a stator, a magnetic regulating ring, a rotor, a collecting ring brush, a supporting part, a shell, a converter and a control circuit, and is characterized in that: the magnetic regulating ring is positioned between the stator and the rotor, the stator and the rotor are respectively provided with an armature winding, stator regulation and rotor regulation can be carried out, the number of pole pairs of the stator, the number of magnetic regulating blocks and the number of pole pairs of the rotor form a magnetic regulating matching relationship, and the rotating speed of the magnetic field of the stator, the rotating speed of the magnetic regulating ring and the rotating speed of the rotor form a magnetic regulating motion relationship;
the stator consists of a stator core and an armature winding, the stator core consists of a stator yoke part and a stator tooth part, the armature winding is formed by winding wires and comprises a yoke winding and a tooth part winding, a stator armature magnetic field is formed by circulating three-phase alternating current or two-phase alternating current, the stator pole pair number is provided, the stator armature magnetic field rotating speed is provided, and the armature winding is in circuit connection with the converter;
the magnetic regulating ring consists of magnetic regulating blocks, insulating blocks and ring bodies, wherein the magnetic regulating blocks are made of soft magnetic materials and are uniformly arranged on the ring bodies along the circumferential direction of the magnetic regulating ring, the insulating blocks are made of non-magnetic conductive materials and are uniformly arranged in the intervals of the magnetic regulating blocks along the circumferential direction, and the ring bodies are used for keeping the positions of the magnetic regulating blocks and the insulating blocks and keeping the shape of the magnetic regulating ring; the magnetic adjusting ring has a magnetic adjusting ring rotating speed;
the rotor consists of a rotor iron core, a rotor shaft and a rotor armature winding, wherein the rotor iron core consists of a rotor yoke part and a rotor tooth part, the rotor armature winding is formed by winding a wire and comprises a yoke winding and a tooth part winding, and a rotor armature magnetic field is formed by circulating three-phase alternating current, two-phase alternating current or direct current, and the rotor iron core has rotor pole pair numbers and rotor armature magnetic field rotating speed; the armature winding of the rotor is connected with the current transformer through a collector ring brush to form a circuit; rotor speed = rotor mechanical speed + rotor armature field speed;
the stator armature magnetic field, the magnet adjusting ring and the rotor are three rotating parts which can rotate relatively to each other; the stator pole pair number, the magnet adjusting block number and the rotor pole pair number form a magnet adjusting matching relationship, and the magnet adjusting matching relationship is one of the following equation relationships: the magnetic regulation matching relation is I, namely the stator pole pair number, the rotor pole pair number and the magnetic regulation block number; magnetic regulation matching relation II, stator pole pair number, magnetic regulation block number = rotor pole pair number; magnetic regulation matching relation three, namely stator pole pair number=rotor pole pair number+magnetic regulation block number;
the supporting component consists of a bearing, a bracket and the like; the shell protects the motor;
the current transformer is a mature part, the current transformer is connected with a power supply and a stator armature winding, the current transformer changes the frequency, amplitude, phase and phase sequence of the current of the stator armature winding, and changes the rotating speed of a magnetic field of the stator, so that the change of the rotating speeds of three rotating parts according to the magnetic regulating movement relation is stator regulation, and the stator regulation can lead the current to be input into the stator armature winding for electricity consumption or the generated current of the stator armature winding to flow out; the current transformer is connected with the power supply and the rotor armature winding, the current transformer changes the frequency, amplitude, phase and phase sequence of the current of the rotor armature winding, and changes the rotating speed of a rotor armature magnetic field, so that the change of the rotating speeds of three rotating parts according to the magnetic regulating movement relation is rotor regulation, and the rotor regulation can lead the current to be input into the rotor armature winding for electricity consumption or the generated current of the rotor armature winding to flow out;
the control circuit controls the current of the armature winding of the stator, controls the stator to adjust, controls the current of the armature winding of the rotor, controls the rotor to adjust, and also controls the converter;
sequentially corresponding to the matching relation of the magnetism modulation, wherein the rotating speed of the magnetic field of the stator armature and the rotating speed of the magnetism modulation ring and the rotating speed of the rotor form one of the following magnetism modulation motion relations: the magnetic regulating motion relation is that the number of pairs of stator poles is equal to the number of stator armature magnetic field rotating speed and the number of pairs of rotor poles is equal to the number of magnetic regulating blocks; magnetic regulating motion relation II, stator pole pair number, stator armature magnetic field rotating speed, magnetic regulating block number, magnetic regulating ring rotating speed and rotor pole pair number, and rotor rotating speed; magnetic regulating motion relation three, stator pole pair number, stator armature magnetic field rotating speed=rotor pole pair number, rotor rotating speed+magnetic regulating block number, and magnetic regulating ring rotating speed.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202211144624.1A CN117294098A (en) | 2022-09-20 | 2022-09-20 | Double-armature magnetic regulating motor |
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| CN202211144624.1A CN117294098A (en) | 2022-09-20 | 2022-09-20 | Double-armature magnetic regulating motor |
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| CN2146809Y (en) * | 1992-09-28 | 1993-11-17 | 屈维谦 | Self-coupling and self-feedback adjustable-speed motor |
| CN108321978A (en) * | 2018-05-14 | 2018-07-24 | 华南理工大学 | A kind of flywheel energy storage magnetic force coupling gearing device |
| CN111463939A (en) * | 2020-05-09 | 2020-07-28 | 西安交通大学 | Stator and rotor double-permanent-magnet double-armature winding magnetic field modulation permanent magnet motor structure |
| CN113517801A (en) * | 2021-03-15 | 2021-10-19 | 中国电力科学研究院有限公司 | Stepless speed change magnetic gear |
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2022
- 2022-09-20 CN CN202211144624.1A patent/CN117294098A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2146809Y (en) * | 1992-09-28 | 1993-11-17 | 屈维谦 | Self-coupling and self-feedback adjustable-speed motor |
| CN108321978A (en) * | 2018-05-14 | 2018-07-24 | 华南理工大学 | A kind of flywheel energy storage magnetic force coupling gearing device |
| CN111463939A (en) * | 2020-05-09 | 2020-07-28 | 西安交通大学 | Stator and rotor double-permanent-magnet double-armature winding magnetic field modulation permanent magnet motor structure |
| CN113517801A (en) * | 2021-03-15 | 2021-10-19 | 中国电力科学研究院有限公司 | Stepless speed change magnetic gear |
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