CN112910123A - Rotor magnetic pole modulation type induction hybrid excitation brushless motor and power generation system - Google Patents
Rotor magnetic pole modulation type induction hybrid excitation brushless motor and power generation system Download PDFInfo
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- CN112910123A CN112910123A CN202110119097.8A CN202110119097A CN112910123A CN 112910123 A CN112910123 A CN 112910123A CN 202110119097 A CN202110119097 A CN 202110119097A CN 112910123 A CN112910123 A CN 112910123A
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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
- H02K1/223—Rotor cores with windings and permanent magnets
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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
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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
- H02K1/27—Rotor cores with permanent magnets
- H02K1/2706—Inner rotors
- H02K1/272—Inner rotors the magnetisation axis of the magnets being perpendicular to the rotor axis
- H02K1/274—Inner rotors the magnetisation axis of the magnets being perpendicular to the rotor axis the rotor consisting of two or more circumferentially positioned magnets
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02P—CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORS OR DYNAMO-ELECTRIC CONVERTERS; CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS
- H02P9/00—Arrangements for controlling electric generators for the purpose of obtaining a desired output
- H02P9/14—Arrangements for controlling electric generators for the purpose of obtaining a desired output by variation of field
- H02P9/26—Arrangements for controlling electric generators for the purpose of obtaining a desired output by variation of field using discharge tubes or semiconductor devices
- H02P9/30—Arrangements for controlling electric generators for the purpose of obtaining a desired output by variation of field using discharge tubes or semiconductor devices using semiconductor devices
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Abstract
The invention discloses a rotor magnetic pole modulation type induction hybrid excitation brushless motor and a power generation system, which comprise a stator, a magnetic pole modulation type rotor, an armature winding, an induction excitation winding, a main excitation winding, an induction armature winding and a rotary rectifier, wherein the rotor is provided with a plurality of permanent magnets; the armature winding and the induction excitation winding are both arranged in the stator; the main excitation winding and the induction armature winding are arranged in the magnetic pole modulation type rotor; the main excitation winding is connected with the induction armature winding through a rotary rectifier; the magnetic pole modulation type rotor comprises k repeated magnetic pole units along the circumferential direction, wherein k is a positive integer; the number of pole pairs of each magnetic pole unit isp 0Number of pole pairs of rotor with modulated magnetic polesp=k×p 0，p 0m =n，p 0i N +1, n being a positive integer. The invention adopts a magnetic pole modulation type rotor, and a single main excitation coil can be simultaneously adjustedp 0i The magnetic flux of each iron core pole has high magnetic regulation efficiency. Meanwhile, brushless power supply of the main excitation winding on the rotor can be realized, and the induction efficiency is improved. In addition, self-excitation of the motor can be realized, and an external power supply is not needed.
Description
Technical Field
The invention relates to the field of motor design and manufacture, in particular to a rotor magnetic pole modulation type induction hybrid excitation brushless motor and a power generation system.
Background
Permanent magnet motors have the advantages of high torque/power density, high efficiency, high power factor, etc., and have found use in many applications. However, field weakening of permanent magnet machines is achieved by controlling the direct-axis current component (-i) in the armature windingd) To achieve this, permanent magnets have the risk of irreversible demagnetization and have limited flux weakening capability.
In the constant voltage power generation occasion, the permanent magnet motor needs a full-power controllable converter to realize the stability of output voltage, the weight and the cost of the system are both overhigh, the position information is needed for the voltage stabilization, and the control is complex.
The hybrid excitation motor has two magnetic potential sources (an excitation winding and a permanent magnet), has the advantage of convenient magnetic field adjustment of the electric excitation motor, and has the advantages of high power density, high efficiency and the like of the permanent magnet motor. The hybrid excitation motor adopting direct current excitation does not need position information, has a simple control mode, and can realize effective regulation of an air gap magnetic field by regulating the current of an excitation winding through a low-power converter. Therefore, the hybrid excitation motor has great application potential in constant voltage power generation occasions.
However, the existing rotor permanent magnet type (permanent magnet is located in the rotor) hybrid excitation motor also introduces an additional magnetic circuit while realizing the parallel connection of permanent magnet and electric excitation magnetic potential. The permanent magnetic flux is short-circuited through the additional magnetic circuit, so that magnetic leakage is formed, and the utilization rate of the permanent magnetic material is reduced. Furthermore, the additional magnetic circuit is mostly a solid magnetic conductive member, which increases eddy current loss.
Disclosure of Invention
The present invention is directed to solve the above-mentioned problems of the prior art, and provides a rotor magnetic pole modulation type induction hybrid excitation brushless motor and a power generation system, wherein the rotor magnetic pole modulation type induction hybrid excitation brushless motor and the power generation system uses a magnetic pole modulation type rotor, and a single main excitation winding can simultaneously adjust p0iThe magnetic flux of each iron core pole has high magnetic regulation efficiency. Meanwhile, the brushless power supply of the main excitation winding on the rotor is realized by combining the induction winding and the rotating rectifier, and the iron core pole with high magnetic conductance also provides low magnetism for the magnetic flux generated by the induction excitation windingAnd the path is blocked, so that the induction efficiency is improved. In addition, due to the existence of the magnetic flux of the permanent magnet, the power generation system formed by the permanent magnet can output initial voltage; the initial voltage can supply power for the stator induction excitation winding through the direct current converter, so that the self-excitation of the motor is realized, and an external power supply is not needed.
In order to solve the technical problems, the invention adopts the technical scheme that:
a rotor magnetic pole modulation type induction hybrid excitation brushless motor comprises a stator, a magnetic pole modulation type rotor, an armature winding, an induction excitation winding, a main excitation winding, an induction armature winding and a rotary rectifier.
The stator and the magnetic pole modulation type rotor are coaxially sleeved, and an air gap is arranged between the stator and the magnetic pole modulation type rotor.
The armature winding and the induction excitation winding are wound in stator slots of the stator. Wherein, the induction excitation winding is a direct current winding.
The main excitation winding and the induction armature winding are wound in a rotor slot of the magnetic pole modulation type rotor. The main excitation winding is a direct current winding and is connected with the induction armature winding through a rotary rectifier. And the winding directions of two adjacent main excitation windings are opposite.
The magnetic pole modulation type rotor includes k repeated magnetic pole units in a circumferential direction, where k is a positive integer. The number of pole pairs of each magnetic pole unit is p0Then, the pole pair number p of the magnetic pole modulation type rotor satisfies the following calculation formula:
p＝k×p0 (1)
in each magnetic pole unit, the number of permanent magnet pole pairs is assumed to be p0mThe number of pole pairs of the core is p0iAnd then:
p0m＝n (2)
p0i＝n+1 (3)
p0＝p0m+p0i＝2n+1 (4)
wherein n is a positive integer.
The rotor slots include large slots and small slots. Wherein, the small groove is arranged on the rotor iron core on the side of the permanent magnetic pole and/or the iron core pole facing the air gap.
In each magnetic pole unit, 2p0mThe permanent magnetic poles are not connected. At 2p0iTwo groups of connected iron core poles exist in each iron core pole, and a large groove is arranged between every two adjacent iron core poles.
The main excitation winding is wound in two adjacent large slots, and the induction armature winding is wound in the small slot and the adjacent large slot or only wound in the small slot.
The small slot is arranged on the central d axis of each permanent magnet pole.
The permanent magnet is a surface-mounted permanent magnet or a built-in permanent magnet.
The built-in permanent magnet is of one-layer or multi-layer mixed type. The shape of each built-in permanent magnet is in a shape of a straight line, a V, a W or a U.
A rotor magnetic pole modulation type induction hybrid excitation power generation system comprises a hybrid excitation brushless motor, a rectifier, a load and a direct current converter.
The hybrid excitation brushless motor has the structure described above.
The armature winding is connected to the ac side of the rectifier, and the dc side of the rectifier is connected to the load.
The induction excitation winding is connected to the output end of the direct current converter, and the input end of the direct current converter is connected with the load in parallel.
When the prime mover or the mechanical energy drives the magnetic pole modulation type rotor to rotate, the permanent magnetic field generated by the permanent magnet induces a counter electromotive force in the armature winding, thereby outputting an initial voltage. The initial voltage supplies power to the induction excitation winding through the direct current converter, and the current in the induction excitation winding is adjusted through voltage pulse width modulation in the direct current converter. When current is introduced into the induction excitation winding, an induction excitation magnetic field with a fixed spatial position is generated in the air gap, the induction armature winding rotating along with the magnetic pole modulation type rotor cuts the induction excitation magnetic field to generate induction electromotive force, and the electromotive force in the induction armature winding is converted into direct current through the rotating rectifier and then is supplied to the main excitation winding.
Since the permeability of the core poles is much greater than that of the permanent magnets,the flux generated by a single main field winding passes through p0iThe individual core poles are closed, so that a single main excitation winding can regulate p simultaneously0iThe magnetic flux of each iron core pole has high magnetic regulation efficiency.
When the magnetism is increased, the magnetic flux generated on the iron core pole by the main excitation winding which is introduced with the direct current is opposite to the magnetic flux generated on the permanent magnet pole by the adjacent permanent magnet along the upper direction of the radial direction. Thus, 2p0mA permanent magnet pole and 2p0iOne core pole can generate p0Air gap field of opposite pole. Therefore, the direct current in the main exciting winding can be adjusted by controlling the current of the induction exciting winding through the direct current converter, and further, the air gap magnetic field of the iron core pole can be adjusted, and the adjustment of the armature winding flux linkage and the output voltage is realized.
The number of phases of the induction armature winding is single phase, three phase, five phase or double three phase.
The invention has the following beneficial effects:
1. the rotor of the mixed excitation brushless motor is a magnetic pole modulation type rotor, and a single main excitation winding can simultaneously adjust p0iThe magnetic flux of each iron core pole has high magnetic regulation efficiency.
2. The high-permeability iron core pole also provides a low-reluctance path for magnetic flux generated by the induction excitation winding, and the induction efficiency is improved.
3. The power generation system formed by the motor can realize self excitation without an external power supply.
4. The magnetic flux generated by the main excitation winding and the induction excitation winding does not pass through the permanent magnet, so that the risk of demagnetization is reduced.
5. The permanent magnet rotor has no additional magnetic circuit, the magnetic flux generated by the permanent magnet poles is closed (namely effective magnetic flux) through the air gap and the stator teeth, no additional magnetic leakage exists, and the utilization rate of the permanent magnet material is high.
6. And a solid magnetic conduction component is not arranged, so that the eddy current loss is small.
Drawings
Fig. 1 shows a schematic configuration diagram of a rotor magnetic pole modulated type induction hybrid excitation brushless motor of the present invention.
Fig. 2 shows a schematic structural diagram of a rotor magnetic pole modulation type induction hybrid excitation power generation system of the present invention.
Fig. 3 shows a schematic view of a structure of a magnetic pole modulated rotor according to the present invention.
FIG. 4 shows p0When the magnetic field is increased to 3, the magnetic flux path generated by the main excitation winding is schematic.
Fig. 5 shows the air gap flux density profile produced by a permanent magnet.
Fig. 6 shows the air gap magnetomotive force, flux guide and flux density profiles produced by the primary field winding in the field increasing mode.
Fig. 7 shows the air gap flux density distribution diagram generated by the permanent magnet and the main excitation winding together in the magnetizing mode.
Fig. 8 shows a graph of current versus time established in the main field winding when dc current is passed through the induction field winding.
Fig. 9 shows a graph of armature winding flux linkage versus rotor position for different excitation modes.
Fig. 10 shows a plot of rectified output voltage versus time for the armature winding for different excitation modes.
FIG. 11 shows p0When the magnetic field is increased to 5, the magnetic flux path generated by the main excitation winding is schematic.
Among them are:
10. a stator; 11. an armature winding; 12. an induction excitation winding;
20. a magnetic pole modulation type rotor;
21. a main excitation winding; 22. an induction armature winding; 23. a permanent magnet; 24. a large groove; 25. a small groove.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings and specific preferred embodiments.
In the description of the present invention, it is to be understood that the terms "left side", "right side", "upper part", "lower part", etc., indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of describing the present invention and simplifying the description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and that "first", "second", etc., do not represent an important degree of the component parts, and thus are not to be construed as limiting the present invention. The specific dimensions used in the present example are only for illustrating the technical solution and do not limit the scope of protection of the present invention.
The motor in the invention is p0Number of stator slots N ═ 3sThe rotor pole pair number p is 6, and the three-phase armature winding (a phase, B phase, and C phase) is taken as an example, and the details will be described.
As shown in fig. 2, a rotor magnetic pole modulation type induction hybrid excitation power generation system includes a hybrid excitation brushless motor, a rectifier, a load, and a dc converter.
The hybrid excitation brushless motor is also a rotor magnetic pole modulation type induction hybrid excitation brushless motor of the invention.
As shown in fig. 1, a rotor magnetic pole modulation type induction hybrid excitation brushless motor includes a stator 10, a magnetic pole modulation type rotor 20, an armature winding 11, an induction excitation winding 12, a main excitation winding 21, an induction armature winding 22, and a rotary rectifier.
The stator and the magnetic pole modulation type rotor are coaxially sleeved, and an air gap is arranged between the stator and the magnetic pole modulation type rotor.
Further, the stator core and the rotor core are made of magnetic conductive materials.
The armature winding, the main excitation winding and the stator and rotor iron cores form a main motor; the induction exciting winding and the induction armature winding are auxiliary exciting parts and share a stator core and a rotor core with a main motor.
The armature winding and the induction excitation winding are wound in stator slots of the stator. Wherein, the induction excitation winding is a direct current winding. The discharge positions of the armature winding and the induction excitation winding in the stator slots can be flexibly changed according to the pole slot matching and the slot type.
As shown in fig. 2, the armature winding is connected to the ac side of the rectifier, and the dc side of the rectifier is connected in series with the load.
The induction excitation winding is connected in series with the output end of the direct current converter, and the input end of the direct current converter is connected in parallel with the load.
The main excitation winding and the induction armature winding are wound in a rotor slot of the magnetic pole modulation type rotor.
As shown in fig. 1 and 2, the main field winding is a dc winding and is connected to the induction armature winding through a rotary rectifier.
The number of phases of the induction armature winding can be single phase, three phase, five phase, double three phase and other multiple phases.
The winding directions of two adjacent main excitation windings are opposite.
The magnetic pole modulation type rotor includes k repeated magnetic pole units in a circumferential direction, where k is a positive integer. The number of pole pairs of each magnetic pole unit is p0Then, the pole pair number p of the magnetic pole modulation type rotor satisfies the following calculation formula:
p＝k×p0 (1)
in each magnetic pole unit, the number of permanent magnet pole pairs is assumed to be p0mThe number of pole pairs of the core is p0iAnd then:
p0m＝n (2)
p0i＝n+1 (3)
p0＝p0m+p0i＝2n+1 (4)
wherein n is a positive integer.
When p is0When equal to 3, p0m＝n＝1，p0iN + 12, i.e. each pole unit, has 2 permanent magnet poles and 4 core poles, as shown in fig. 4.
When p is0When equal to 5, p0m＝n＝2，p0iN + 1-3, i.e. each pole unit, has 4 permanent magnet poles and 6 core poles, as shown in fig. 11.
The rotor permanent magnet can be surface-mounted or built-in. The built-in permanent magnet can be in a shape of a Chinese character ' yi ', V ', W, U and the like, and can also be in a multilayer mixed type. Fig. 1 and 3 illustrate a permanent magnet with a V-shape built-in, and fig. 4 and 11 illustrate a permanent magnet with a surface-mount type.
The rotor slots comprise large slots and small slots; wherein, the small groove is arranged on the rotor iron core on the side of the permanent magnetic pole and/or the iron core pole facing the air gap. To avoid that the small slots have an influence on the magnetic circuit of the permanent magnet poles, the small slots on the permanent magnet poles are preferably located on the center line (i.e. the d-axis) of the permanent magnet poles.
In each magnetic pole unit, 2p0mThe permanent magnetic poles are not connected. At 2p0iTwo groups of connected iron core poles exist in each iron core pole, and a large groove is arranged between every two adjacent iron core poles.
And a main excitation winding is wound in two adjacent large slots, and a small slot and an adjacent large slot or an induction armature winding is wound in the adjacent small slot.
The invention has the functions of self-excitation, magnetic regulation, voltage regulation and the like of the power supply, and the specific analysis is as follows.
First, self-excitation of power supply
The power generation system formed by the motor can realize self excitation under the condition of no external power supply, as shown in figure 2. Specifically, when the prime mover or mechanical energy rotates with the rotor, the permanent magnetic field induces a back electromotive force in the armature winding, thereby outputting an initial voltage; the initial voltage supplies power to the stator induction excitation winding through the direct current converter, and the magnitude of the current of the induction excitation winding can be adjusted through voltage pulse width modulation; when current is introduced into the induction excitation winding, an induction excitation magnetic field with a fixed (static) space position is generated in the air gap, the induction armature winding rotating along with the rotor cuts the magnetic field to generate induction electromotive force, and the electromotive force in the induction armature winding is converted into direct current through the rotating rectifier and then supplied to the main excitation winding, so that brushless excitation is realized.
Second, magnetic regulation
In fig. 3, the pole pair number p of the magnetic pole modulation rotor is 6, where k is 2 and p is p0＝3，p0i＝2，p0m＝1。
For each pole unit, 2p0mThe permanent magnetic poles are not connected; 2p of0iTwo groups of iron core poles are connected with each other, and a large groove is arranged between the iron core poles connected with each group. The winding directions of two adjacent main excitation windings are opposite (namely the winding directions of E1 and E3 are the same, and are opposite to those of E2 and E4).
Since the permeability of the core pole is much greater than that of the permanent magnet, a single main poleThe magnetic flux generated by the magnetic coil passes through p0iWith individual core poles closed, i.e. p being adjustable simultaneously by a single main field coil0i(this example p)0i2) magnetic fluxes of the core poles, as shown in fig. 4, the magnetic flux adjusting efficiency is high.
When the magnetism is increased, the magnetic flux generated on the iron core pole by the main excitation winding which is introduced with the direct current is opposite to the magnetic flux generated on the permanent magnet pole by the adjacent permanent magnet along the upper direction of the radial direction.
The air gap flux density produced by the permanent magnets alone is shown in fig. 5. Where θ is the air gap circumferential position, BgDistribution of air gap flux density along the circumference, BgmThe magnetic density amplitude value p generated by the permanent magnet on the air gap corresponding to the permanent magnet pole0mFor generating p for permanent magnet pole0mAnd the air gap flux density with opposite polarity is realized.
The air gap magnetomotive force, flux guide and flux density distribution produced by the primary field winding alone is shown in fig. 6. Wherein, fe is the air gap magnetomotive force generated by the main excitation winding, and the positive polarity and the negative polarity are opposite; pg is equivalent air gap permeance considering permanent magnet reluctance; b isgiThe magnetic density amplitude generated by the main excitation winding on the air gap corresponding to the iron core pole alone.
As can be seen from fig. 6, the polarity of the air gap flux density on the core pole is opposite to the polarity of the air gap flux density on the adjacent permanent magnet pole. Thus, 2p0mA permanent magnet pole and 2p0iOne core pole can generate p0Air gap field of opposite poles as shown in fig. 7.
Third, regulating pressure
When the induction excitation winding is energized with direct current, the current established in the main excitation winding is as shown in fig. 8, and approaches direct current in steady state. The magnitude of the current of the induction excitation winding is controlled by the direct current converter, so that the magnitude of the direct current in the main excitation winding can be adjusted, and further, the air gap magnetic field of the iron core pole can be effectively adjusted, and therefore, the effective adjustment of the armature winding flux linkage and the output voltage is realized, as shown in fig. 9 and 10 respectively.
Although the preferred embodiments of the present invention have been described in detail, the present invention is not limited to the details of the embodiments, and various equivalent modifications can be made within the technical spirit of the present invention, and the scope of the present invention is also within the scope of the present invention.
Claims (9)
1. A rotor magnetic pole modulation type induction hybrid excitation brushless motor is characterized in that: the permanent magnet synchronous motor comprises a stator, a magnetic pole modulation type rotor, an armature winding, an induction excitation winding, a main excitation winding, an induction armature winding and a rotary rectifier;
the stator and the magnetic pole modulation type rotor are coaxially sleeved, and an air gap is formed between the stator and the magnetic pole modulation type rotor;
the armature winding and the induction excitation winding are wound in a stator slot of the stator; the induction excitation winding is a direct current winding;
the main excitation winding and the induction armature winding are wound in a rotor slot of the magnetic pole modulation type rotor; the main excitation winding is a direct current winding and is connected with the induction armature winding through a rotary rectifier; the winding directions of two adjacent main excitation windings are opposite;
the magnetic pole modulation type rotor comprises k repeated magnetic pole units along the circumferential direction, wherein k is a positive integer; the number of pole pairs of each magnetic pole unit isp 0Number of pole pairs of rotor with modulated magnetic polespThe following calculation formula is satisfied:
p=k×p 0 (1)
in each magnetic pole unit, the number of permanent magnet pole pairs is assumed to bep 0m The number of pole pairs of the iron core isp 0i And then:
p 0m =n (2)
p 0i =n+1 (3)
p 0=p 0m +p 0i =2n+1 (4)
wherein n is a positive integer.
2. The rotor-pole modulated induction hybrid-excited brushless motor according to claim 1, characterized in that: the rotor slots comprise large slots and small slots; wherein, the small slot is arranged on the rotor iron core of the permanent magnetic pole and/or the iron core pole facing to the air gap side;
in each magnetic pole unit, 2p 0m The permanent magnetic poles are not connected; in 2p 0i Two groups of connected iron core poles exist in each iron core pole, and a large groove is arranged between every two groups of connected iron core poles;
the main excitation winding is wound in two adjacent large slots, and the induction armature winding is wound in the small slot and the adjacent large slot or only wound in the small slot.
3. The rotor-pole modulated induction hybrid-excited brushless motor according to claim 2, characterized in that: the small slot is arranged on the central d axis of each permanent magnet pole.
4. The rotor-pole modulated induction hybrid-excited brushless motor according to claim 1, characterized in that: the permanent magnet is a surface-mounted permanent magnet or a built-in permanent magnet.
5. The rotor pole modulated induction hybrid excitation brushless motor of claim 4, characterized in that: the built-in permanent magnet is of one-layer or multi-layer mixed type; the shape of each built-in permanent magnet is in a shape of a straight line, a V, a W or a U.
6. A rotor magnetic pole modulation type induction hybrid excitation power generation system is characterized in that: the hybrid excitation brushless motor comprises a hybrid excitation brushless motor, a rectifier, a load and a direct current converter;
a structure of a hybrid excitation brushless motor as claimed in any one of claims 1 to 5;
the armature winding is connected to the alternating current side of the rectifier, and the direct current side of the rectifier is connected with the load;
the induction excitation winding is connected to the output end of the direct current converter, and the input end of the direct current converter is connected with the load in parallel;
when the prime motor or the mechanical energy drives the magnetic pole modulation type rotor to rotate, the permanent magnetic field generated by the permanent magnet can induce counter electromotive force in the armature winding, so that initial voltage is output; the initial voltage supplies power to the induction excitation winding through the direct current converter, and the current in the induction excitation winding is adjusted through the voltage pulse width modulation in the direct current converter; when current is introduced into the induction excitation winding, an induction excitation magnetic field with a fixed spatial position is generated in the air gap, the induction armature winding rotating along with the magnetic pole modulation type rotor cuts the induction excitation magnetic field to generate induction electromotive force, and the electromotive force in the induction armature winding is converted into direct current through the rotating rectifier and then is supplied to the main excitation winding.
7. The rotor magnetic pole modulated induction hybrid excitation power generation system according to claim 6, characterized in that: since the permeability of the core pole is much greater than that of the permanent magnet, the flux generated by a single main field winding passes throughp 0i The individual core poles being closed, so that the individual main field windings can be adjusted simultaneouslyp 0i The magnetic flux of each iron core pole has high magnetic regulation efficiency.
8. The rotor magnetic pole modulated induction hybrid excitation power generation system according to claim 7, characterized in that: when the magnetism is increased, the magnetic flux generated on the iron core pole by the main excitation winding which is introduced with the direct current is opposite to the magnetic flux generated on the permanent magnet pole by the adjacent permanent magnet along the upper direction of the radial direction; thus, 2p 0m A permanent magnet pole and 2p 0i Individual core poles can be producedp 0An air gap field of opposite poles; therefore, the direct current in the main exciting winding can be adjusted by controlling the current of the induction exciting winding through the direct current converter, and further, the air gap magnetic field of the iron core pole can be adjusted, and the adjustment of the armature winding flux linkage and the output voltage is realized.
9. The rotor magnetic pole modulated induction hybrid excitation power generation system according to claim 6, characterized in that: the number of phases of the induction armature winding is single phase, three phase, five phase or double three phase.
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| CN202110119097.8A CN112910123B (en) | 2021-01-28 | 2021-01-28 | Rotor magnetic pole modulation type induction hybrid excitation brushless motor and power generation system |
| PCT/CN2022/073899 WO2022161375A1 (en) | 2021-01-28 | 2022-01-26 | Rotor magnetic pole modulation-type induction hybrid excitation brushless motor and power generation system |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113507176A (en) * | 2021-06-08 | 2021-10-15 | 南京航空航天大学 | Rotor multi-groove type induction excitation type hybrid excitation motor |
| WO2022161375A1 (en) * | 2021-01-28 | 2022-08-04 | 南京航空航天大学 | Rotor magnetic pole modulation-type induction hybrid excitation brushless motor and power generation system |
Families Citing this family (1)
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| CN116255395B (en) * | 2022-12-30 | 2024-01-05 | 淮阴工学院 | Constant current source excitation six-pole active electromagnetic bearing and design method |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101662197A (en) * | 2009-09-17 | 2010-03-03 | 苏州工业园区美能新能源有限公司 | Compound excitation permanent magnet synchronous generator for electric vehicles |
| CN104753279A (en) * | 2013-12-28 | 2015-07-01 | 黄劭刚 | Single-armature synchronous motor with AC frequency-conversion inductive brushless excitation |
| JP2017118691A (en) * | 2015-12-24 | 2017-06-29 | アスモ株式会社 | motor |
| CN108964396A (en) * | 2018-08-13 | 2018-12-07 | 南京航空航天大学 | Stator partition type replaces pole hybrid excitation motor |
| CN109951038A (en) * | 2019-03-05 | 2019-06-28 | 南京航空航天大学 | Bilateral excitation type tangential magnet-steel hybrid exciting brushless motor |
| CN112087085A (en) * | 2020-09-04 | 2020-12-15 | 东南大学 | Brushless hybrid excitation motor based on N-S alternating pole rotor |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4519928B2 (en) * | 2008-06-02 | 2010-08-04 | 株式会社日本自動車部品総合研究所 | Hybrid excitation type synchronous machine |
| CN111082626B (en) * | 2020-01-09 | 2021-12-07 | 东华大学 | Brushless hybrid excitation synchronous generator with adjustable magnetic leakage |
| CN112910123B (en) * | 2021-01-28 | 2022-03-25 | 南京航空航天大学 | Rotor magnetic pole modulation type induction hybrid excitation brushless motor and power generation system |
-
2021
- 2021-01-28 CN CN202110119097.8A patent/CN112910123B/en active Active
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Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101662197A (en) * | 2009-09-17 | 2010-03-03 | 苏州工业园区美能新能源有限公司 | Compound excitation permanent magnet synchronous generator for electric vehicles |
| CN104753279A (en) * | 2013-12-28 | 2015-07-01 | 黄劭刚 | Single-armature synchronous motor with AC frequency-conversion inductive brushless excitation |
| JP2017118691A (en) * | 2015-12-24 | 2017-06-29 | アスモ株式会社 | motor |
| CN108964396A (en) * | 2018-08-13 | 2018-12-07 | 南京航空航天大学 | Stator partition type replaces pole hybrid excitation motor |
| CN109951038A (en) * | 2019-03-05 | 2019-06-28 | 南京航空航天大学 | Bilateral excitation type tangential magnet-steel hybrid exciting brushless motor |
| CN112087085A (en) * | 2020-09-04 | 2020-12-15 | 东南大学 | Brushless hybrid excitation motor based on N-S alternating pole rotor |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2022161375A1 (en) * | 2021-01-28 | 2022-08-04 | 南京航空航天大学 | Rotor magnetic pole modulation-type induction hybrid excitation brushless motor and power generation system |
| CN113507176A (en) * | 2021-06-08 | 2021-10-15 | 南京航空航天大学 | Rotor multi-groove type induction excitation type hybrid excitation motor |
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