CN219740177U - Double-stator inductor motor - Google Patents
Double-stator inductor motor Download PDFInfo
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- CN219740177U CN219740177U CN202321156323.0U CN202321156323U CN219740177U CN 219740177 U CN219740177 U CN 219740177U CN 202321156323 U CN202321156323 U CN 202321156323U CN 219740177 U CN219740177 U CN 219740177U
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- salient pole
- armature winding
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- 238000004804 winding Methods 0.000 claims abstract description 38
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims abstract description 20
- 230000006698 induction Effects 0.000 claims abstract description 18
- 238000010248 power generation Methods 0.000 claims abstract description 14
- 238000004146 energy storage Methods 0.000 claims abstract description 10
- 230000009977 dual effect Effects 0.000 claims description 4
- 230000005284 excitation Effects 0.000 claims description 4
- 229910000851 Alloy steel Inorganic materials 0.000 claims description 3
- 239000000463 material Substances 0.000 claims description 3
- 238000006243 chemical reaction Methods 0.000 description 5
- 230000004907 flux Effects 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000004088 simulation Methods 0.000 description 2
- 238000004364 calculation method Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
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Abstract
The utility model discloses a double-stator inductor motor, which comprises an outer stator, a salient pole rotor and an inner stator which are coaxially arranged in sequence from outside to inside, wherein the inner side and the outer side of the salient pole rotor are of salient pole structures, the inner side salient pole and the inner stator form an inner inductor motor, and the outer side salient pole, the outer stator, an outer magnetic conduction shell and an end cover form an outer inductor motor; the outer stator comprises two outer stator iron cores, an outer stator armature winding is arranged in an armature groove at the inner side of the two outer stator iron cores, and an outer stator exciting coil is arranged between the two outer stator iron cores; the inner stator comprises two inner stator cores, an inner stator armature winding is arranged in an armature groove at the outer sides of the two inner stator cores, an inner stator exciting coil is arranged between the two inner stator cores, and the two inner stator cores and the inner stator exciting coil are supported by an inner stator magnetic conduction support. The double-stator induction sub-motor has the advantages of high power density and double-frequency power generation function, and is suitable for being applied to flywheel energy storage systems, double-frequency power generation systems or variable frequency systems.
Description
Technical Field
The utility model belongs to the field of special motors, and relates to a double-stator inductor motor which is suitable for special motor devices of flywheel energy storage systems, double-frequency power generation systems or variable frequency systems.
Background
At present, the existing induction motor is of a single-stator structure. When an induction motor is used in an energy storage system, the motor rotor is generally thicker and shorter, and the magnetic density of the rotating shaft is generally lower, so that the power density of the motor is not high enough.
In addition, the alternating current output by the induction motor with the single-stator structure is single-frequency, and a double-frequency power supply is needed to supply power in certain special application occasions.
In order to overcome the above-mentioned difficulty, the present utility model proposes a double-stator inductor motor, when used in an energy storage system, the motor has the advantage of high power density; when the motor is used for a double-frequency power generation system, the motor has a double-frequency power generation output function; when the motor is used for a frequency conversion system, the motor can change the frequency of output alternating current, and the frequency conversion function can be realized without a power electronic conversion device.
Disclosure of Invention
In order to solve the problems of the existing single-stator structure, the utility model aims to provide the double-stator induction sub-motor which has the advantages of high power density and double-frequency power generation function and is suitable for being applied to flywheel energy storage systems, double-frequency power generation systems or variable frequency systems.
The utility model solves the technical problems by adopting the technical scheme that:
the double-stator inductor motor comprises an outer stator, a salient pole rotor and an inner stator which are coaxially arranged in sequence from outside to inside, wherein the inner side and the outer side of the salient pole rotor are of salient pole structures, the inner side salient pole and the inner stator form an inner inductor motor, and the outer side salient pole, the outer stator, an outer magnetic conduction shell and an end cover form an outer inductor motor;
the outer stator comprises two outer stator cores, an outer stator armature winding is arranged in an armature groove at the inner side of the two outer stator cores, and an outer stator exciting coil is arranged between the two outer stator cores;
the inner stator comprises two inner stator iron cores, an inner stator armature winding is arranged in an armature groove at the outer sides of the two inner stator iron cores, an inner stator excitation coil is arranged between the two inner stator iron cores, and the two inner stator iron cores and the inner stator excitation coil are supported by an inner stator magnetic conduction support.
The inner stator exciting coil and the outer stator exciting coil are of circular ring structures and are coaxially arranged with the rotor.
The salient pole rotor comprises a left half part and a right half part, and is formed by processing alloy steel materials.
When the motor is used for a flywheel energy storage system, the number of salient poles on the inner side and the outer side of the salient pole rotor can be the same or different, and the outer stator armature winding and the inner stator armature winding can simultaneously generate electric power or absorb electric power.
When the motor is used for a double-frequency power generation system, the salient pole rotor has different numbers of salient poles at the inner side and the outer side, the outer stator armature winding and the inner stator armature winding can simultaneously and externally generate electric power, and the electric frequencies of the outer stator armature winding and the inner stator armature winding are different.
When the motor is used for a frequency conversion system, the salient pole rotors are different in the number of salient poles on the inner side and the outer side, the salient pole rotors are empty, the inner stator armature is wound and connected with an alternating current power supply, the outer stator armature is wound and connected with a load, the frequency of the outer stator armature winding is different from the frequency of the alternating current power supply, and the voltage amplitude of the outer stator armature winding is adjusted by adjusting the current of the outer stator exciting coil.
Advantageous effects
The double-stator induction motor provided by the utility model has the advantages of high power density and double-frequency power generation function, and is suitable for being applied to flywheel energy storage systems, double-frequency power generation systems or variable frequency systems.
Drawings
FIG. 1 is a schematic diagram of a dual stator induction motor according to the present utility model;
FIG. 2 is a schematic cross-sectional view of a dual stator induction motor of the present utility model;
fig. 3 is a graph of flux linkage of armature windings of an inner stator and an outer stator of the motor.
In the drawings, the list of components represented by the various numbers is as follows:
1-1 left half part, 1-2 right half part, 2-magnetic conduction shell, 3-inner stator iron core, 4-inner stator armature winding, 5-inner stator exciting coil, 6-outer stator iron core, 7-outer stator armature winding, 8-outer stator exciting coil, 9-end cover and 10-inner stator magnetic conduction bracket.
Description of the embodiments
The utility model will be further described with reference to the accompanying drawings.
As shown in fig. 1, the double-stator induction motor comprises an outer stator, a salient pole rotor and an inner stator which are coaxially arranged in sequence from outside to inside, wherein the inner side and the outer side of the salient pole rotor are of salient pole structures, the inner salient pole and the inner stator form an inner induction motor, and the outer salient pole, the outer stator, an outer magnetic conduction shell 2 and an end cover 9 form an outer induction motor;
the outer stator comprises two outer stator iron cores 6, an outer stator armature winding 7 is arranged in an armature groove at the inner side of the two outer stator iron cores 6, and an outer stator exciting coil 8 is arranged between the two outer stator iron cores 6;
the inner stator comprises two inner stator iron cores 3, an inner stator armature winding 4 is arranged in an armature groove at the outer side of each inner stator iron core 3, an inner stator exciting coil 5 is arranged between the two inner stator iron cores 3, and the two inner stator iron cores 3 and the inner stator exciting coil 5 are supported through an inner stator magnetic conduction bracket 10.
Specifically, the inner stator exciting coil 5 and the outer stator exciting coil 8 are both in ring-shaped structures and are coaxially arranged with the rotor.
Specifically, as shown in fig. 2, the salient pole rotor comprises a left half part 1-1 and a right half part 1-2, and is formed by processing alloy steel materials.
When the motor is used for a flywheel energy storage system, the number of salient poles on the inner side and the outer side of the salient pole rotor can be the same or different, and the outer stator armature winding 7 and the inner stator armature winding 4 can simultaneously emit electric power or absorb electric power to the outside; when the motor is used for a double-frequency power generation system, the salient pole rotor has different numbers of salient poles on the inner side and the outer side, and the outer stator armature winding 7 and the inner stator armature winding 4 can simultaneously generate electric power to the outside and have different electric frequencies. When the motor is used for a frequency conversion system, the salient pole rotor is in no-load state, the inner stator armature winding 4 is connected with an alternating current power supply, the outer stator armature winding 7 is connected with a load, the frequency of the outer stator armature winding 7 is different from that of the alternating current power supply, and the voltage amplitude of the outer stator armature winding 7 is adjusted by adjusting the current of the outer stator exciting coil 8.
In order to verify the effect of the double-stator induction motor, a finite element model is built, electromagnetic simulation calculation is carried out, and a motor winding flux linkage curve obtained through simulation is shown in figure 3. It can be seen that the flux linkage frequency of the inner stator armature winding 4 is different from that of the outer stator armature winding 7, and is related to the number of salient poles on the inner and outer sides of the rotor. Therefore, the double-stator induction sub-motor provided by the utility model has the advantages of high power density and double-frequency power generation function, and can be applied to flywheel energy storage systems, double-frequency power generation systems and variable frequency systems.
The foregoing is merely a specific embodiment of the utility model, it being noted that: it will be apparent to those skilled in the art that simple modifications, equivalent variations or modifications can be made without departing from the technical solution of the present utility model, all falling within the scope of the utility model.
Claims (6)
1. The double-stator inductor motor is characterized by comprising an outer stator, a salient pole rotor and an inner stator which are coaxially arranged in sequence from outside to inside, wherein the inner side and the outer side of the salient pole rotor are of salient pole structures, the inner side salient pole and the inner stator form an inner inductor motor, and the outer side salient pole, the outer stator, an outer magnetic conduction shell and an end cover form an outer inductor motor;
the outer stator comprises two outer stator cores, an outer stator armature winding is arranged in an armature groove at the inner side of the two outer stator cores, and an outer stator exciting coil is arranged between the two outer stator cores;
the inner stator comprises two inner stator iron cores, an inner stator armature winding is arranged in an armature groove at the outer sides of the two inner stator iron cores, an inner stator excitation coil is arranged between the two inner stator iron cores, and the two inner stator iron cores and the inner stator excitation coil are supported by an inner stator magnetic conduction support.
2. The dual stator induction machine of claim 1, wherein said inner stator field coil and said outer stator field coil are each of annular configuration and are coaxially disposed with the rotor.
3. The dual stator induction machine of claim 1, wherein said salient pole rotor comprises left and right halves machined from an alloy steel material.
4. The double-stator induction motor according to claim 1, wherein when the motor is used in a flywheel energy storage system, the salient pole rotor has the same or different numbers of salient poles on the inner side and the outer side, and the outer stator armature winding and the inner stator armature winding can simultaneously generate electric power or absorb electric power.
5. The double stator induction motor of claim 1, wherein when the motor is used in a double frequency power generation system, the salient pole rotor has different numbers of salient poles on the inner and outer sides, and the outer stator armature winding and the inner stator armature winding can simultaneously generate electric power to the outside and have different electric frequencies.
6. The double stator induction motor of claim 1, wherein when the motor is used in a variable frequency system, the salient pole rotor has different numbers of salient poles on the inner and outer sides, the salient pole rotor is empty, the inner stator armature winding is connected with an ac power supply, the outer stator armature winding is connected with a load, the frequency of the outer stator armature winding is different from the frequency of the ac power supply, and the voltage amplitude of the outer stator armature winding is adjusted by adjusting the current of the outer stator exciting coil.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321156323.0U CN219740177U (en) | 2023-05-15 | 2023-05-15 | Double-stator inductor motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321156323.0U CN219740177U (en) | 2023-05-15 | 2023-05-15 | Double-stator inductor motor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219740177U true CN219740177U (en) | 2023-09-22 |
Family
ID=88053723
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321156323.0U Active CN219740177U (en) | 2023-05-15 | 2023-05-15 | Double-stator inductor motor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219740177U (en) |
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2023
- 2023-05-15 CN CN202321156323.0U patent/CN219740177U/en active Active
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