CN213341955U - Hybrid excitation generator and power generation device - Google Patents
Hybrid excitation generator and power generation device Download PDFInfo
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- CN213341955U CN213341955U CN202022216862.1U CN202022216862U CN213341955U CN 213341955 U CN213341955 U CN 213341955U CN 202022216862 U CN202022216862 U CN 202022216862U CN 213341955 U CN213341955 U CN 213341955U
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Abstract
The utility model discloses a mix excitation generator and power generation facility relates to the electricity generation technology field. The hybrid excitation generator includes a first stator, a first rotor, and a second rotor. The first rotor is provided with a first permanent magnet and corresponds to the first stator, and the first rotor can rotate in the first stator to generate a first rotating magnetic field through the first permanent magnet. The second rotor is provided with a second rotor coil and corresponds to the first stator, and the second rotor can rotate in the first stator and generate a second rotating magnetic field when the second rotor coil is electrified. The first stator is provided with a first stator coil, and the first stator coil can supply power to the outside when the first rotating magnetic field and/or the second rotating magnetic field are/is swept. The hybrid excitation generator and the power generation device both have the characteristics of capability of adjusting output voltage and better voltage steady-state index and voltage transient index.
Description
Technical Field
The utility model relates to a power generation technical field particularly, relates to a mix excitation generator and power generation facility.
Background
Most of the existing hybrid excitation generators are permanent magnet generators or excitation generators, however, the output voltage of the permanent magnet generator cannot be adjusted, the performance of the permanent magnet is greatly influenced by the environmental temperature, and the steady-state index of the output voltage of the generator is poor; the voltage change of the excitation generator is large under the condition of sudden load addition and sudden load removal, and the transient index of the output voltage of the generator is poor.
In view of the above, it is important to develop a hybrid excitation generator and a power generation apparatus that can solve the above technical problems.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a hybrid excitation generator, it has can adjust output voltage, and its voltage steady state index and the better characteristics of voltage transient state index.
Another object of the utility model is to provide a hybrid excitation generator device, it also has can adjust output voltage, and the better characteristics of its voltage steady state index and voltage transient state index.
The utility model provides a technical scheme:
in a first aspect, an embodiment of the present invention provides a hybrid excitation generator, including a first stator, a first rotor, and a second rotor; the first rotor is provided with a first permanent magnet and corresponds to the first stator, and the first rotor can rotate in the first stator so as to generate a first rotating magnetic field through the first permanent magnet; the second rotor is provided with a second rotor coil and corresponds to the first stator, the second rotor can rotate in the first stator, and a second rotating magnetic field is generated when the second rotor coil is electrified; the first stator is provided with a first stator coil, and the first stator coil can supply power to the outside when the first rotating magnetic field and/or the second rotating magnetic field are/is swept.
With reference to the first aspect, in a first implementation manner of the first aspect, the hybrid excitation generator further includes a rotating shaft, and the first rotor and the second rotor are both mounted on the rotating shaft.
With reference to the first aspect and the foregoing implementation manner of the first aspect, in a second implementation manner of the first aspect, the hybrid excitation generator further includes a third rotor mounted to the rotating shaft; and a third rotor coil is arranged on the third rotor, is electrically connected with the second rotor coil and can cut the magnetic field when rotating together with the second rotor coil and the position of the third rotor coil has the magnetic field so as to supply power to the second rotor coil.
With reference to the first aspect and the foregoing implementation manner of the first aspect, in a third implementation manner of the first aspect, the hybrid excitation generator further includes a second stator; the third rotor corresponds to the second stator, and a second stator coil is arranged on the second stator and can generate a second magnetic field under the condition of being electrified so as to be used for cutting the third rotor coil.
With reference to the first aspect and the foregoing implementation manner, in a fourth implementation manner of the first aspect, the hybrid excitation generator further includes a voltage regulator, and the voltage regulator is electrically connected to the second stator coil and the first stator coil, respectively, and is capable of regulating a current of the second stator coil.
With reference to the first aspect and the foregoing implementation manner of the first aspect, in a fifth implementation manner of the first aspect, the hybrid excitation generator further includes a housing; the first stator and the second stator are mounted on the inner wall of the shell, the rotating shaft penetrates into the shell and is rotatably connected with the shell, and the first rotor, the second rotor and the third rotor are arranged in the shell.
With reference to the first aspect and the foregoing implementation manner, in a sixth implementation manner of the first aspect, the first rotor, the second rotor, and the third rotor are sequentially arranged on the rotating shaft.
With reference to the first aspect and the foregoing implementation manner, in a seventh implementation manner of the first aspect, a width of an interval between the second rotor and the third rotor in a first direction is smaller than a width of an interval between the second rotor and the third rotor in the first direction, where the first direction is an axial direction of the rotating shaft.
With reference to the first aspect and the foregoing implementation manner, in an eighth implementation manner of the first aspect, a wire outlet hole is formed in the housing, the wire outlet hole is used for allowing an output wire of the first stator coil and a connecting wire of the second stator coil to pass through the housing, and the wire outlet hole corresponds to an interval between the second rotor and the third rotor.
In a second aspect, the embodiment of the present invention further provides a power generation device, which includes the hybrid excitation generator. The hybrid excitation generator comprises a first stator, a first rotor and a second rotor; the first rotor is provided with a first permanent magnet and corresponds to the first stator, and the first rotor can rotate in the first stator so as to generate a first rotating magnetic field through the first permanent magnet; the second rotor is provided with a second rotor coil and corresponds to the first stator, the second rotor can rotate in the first stator, and a second rotating magnetic field is generated when the second rotor coil is electrified; the first stator is provided with a first stator coil, and the first stator coil can supply power to the outside when the first rotating magnetic field and/or the second rotating magnetic field are/is swept.
Compared with the prior art, the embodiment of the utility model provides a mixed excitation generator includes for prior art's beneficial effect:
the hybrid excitation generator comprises a first stator, a first rotor and a second rotor, wherein a first stator coil is arranged on the first stator. And be equipped with first permanent magnet on first rotor, and first permanent magnet corresponds with first stator, first rotor can be in first stator internal rotation to produce first rotating magnetic field through first permanent magnet, first stator coil can be when first rotating magnetic field sweeps and supply power outward. In addition, a second rotor coil is arranged on the second rotor, the second rotor coil corresponds to the first stator, the second rotor can rotate in the first stator, a second rotating magnetic field is generated when the second rotor coil is electrified, the first stator coil can also supply power outwards when the second rotating magnetic field sweeps, and certainly, when the first rotating magnetic field and the second rotating magnetic field sweep the first stator coil simultaneously, the first stator coil can also supply power outwards. Therefore, when the hybrid excitation generator works, the intensity of the second rotating magnetic field in the first stator can be adjusted by adjusting the working current of the second rotor coil, so that the output voltage of the hybrid excitation generator can be adjusted, and when the performance of the first permanent magnet is influenced by the environmental temperature and the like and under the conditions of sudden load addition and sudden load removal, the magnetic field intensity in the first stator can be adjusted by adjusting the working current of the second rotor coil, so that the voltage steady-state index and the voltage transient index of the hybrid excitation generator are improved.
The embodiment of the utility model provides a power generation facility is the same with foretell mixed excitation generator for prior art's beneficial effect for prior art's beneficial effect, no longer gives unnecessary details here.
In order to make the aforementioned and other objects, features and advantages of the present invention comprehensible, preferred embodiments accompanied with figures are described in detail below.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required to be used in the embodiments will be briefly described below. It is appreciated that the following drawings depict only certain embodiments of the invention and are therefore not to be considered limiting of its scope. For a person skilled in the art, it is possible to derive other relevant figures from these figures without inventive effort.
Fig. 1 is a schematic structural diagram of a hybrid excitation generator applied to a power generation device according to an embodiment of the present invention.
Fig. 2 is a schematic diagram of a partially cut-away structure of a hybrid excitation generator provided by an embodiment of the present invention.
Icon: 100-a power generation device; 20-a storage battery; 10-hybrid excitation generator; 11-a first stator; 111-a first stator coil; 112-sample line; 113-an output line; 12-a second stator; 122-a second stator coil; 121-a connecting line; 13-a voltage regulator; 14-a rotating shaft; 15-a housing; 151-outlet hole; 16-a first rotor; 161-a first permanent magnet; 17-a second rotor; 172-a second rotor coil; 18-a third rotor; 183-third rotor coil; a-first direction.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the drawings in the embodiments of the present invention are combined below to clearly and completely describe the technical solutions in the embodiments of the present invention. It is to be understood that the embodiments described are only some of the embodiments of the present invention, and not all of them. The components of embodiments of the present invention, as generally described and illustrated in the figures herein, may be arranged and designed in a wide variety of different configurations.
It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures. The terms "upper", "lower", "inner", "outer", "left", "right", and the like refer to orientations or positional relationships based on those shown in the drawings, or orientations or positional relationships that are conventionally used to place the products of the present invention, or orientations or positional relationships that are conventionally understood by those skilled in the art, and are used merely to facilitate the description of the present invention and to simplify the description, but do not indicate or imply that the device or component being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus should not be construed as limiting the present invention. The terms "first," "second," and the like are used solely to distinguish one from another and are not to be construed as indicating or implying relative importance. The terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.
It is also to be understood that, unless expressly stated or limited otherwise, the terms "disposed," "connected," and the like are intended to be open-ended, and mean "connected," i.e., fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; the connection may be direct or indirect via an intermediate medium, and may be a communication between the two elements. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.
The following describes in detail embodiments of the present invention with reference to the accompanying drawings.
Example (b):
referring to fig. 1, fig. 1 is a schematic structural diagram of a hybrid excitation generator 10 applied to a power generation device 100 according to an embodiment of the present invention.
The embodiment of the utility model provides a mixed excitation generator 10, this mixed excitation generator 10 have can adjust output voltage, and the better characteristics of its voltage steady state index and voltage transient state index. The hybrid excitation generator 10 can be applied to various types of power generation apparatuses 100, power generation systems, and the like.
Taking the hybrid excitation generator 10 as an example of being applied to the power generation device 100, the power generation device 100 can generate power through the hybrid excitation generator 10, and of course, the power generation device 100 may further include an energy storage component such as a battery 20, and the battery 20 is electrically connected to the hybrid excitation generator 10 to store the electric energy generated by the hybrid excitation generator 10. Because power generation facility 100 has adopted the embodiment of the utility model provides a mixed excitation generator 10, so this power generation facility 100 also has can adjust output voltage, and its voltage steady state index and the better characteristics of voltage transient state index.
The structural composition, the operation principle and the advantageous effects of the hybrid excitation generator 10 according to the embodiment of the present invention will be described in detail below.
Referring to fig. 2, fig. 2 is a schematic partial sectional view of a hybrid excitation generator 10 according to an embodiment of the present invention. In fig. 2, the direction indicated by the arrow a is the first direction a.
The hybrid excitation generator 10 comprises a first stator 11, a first rotor 16 and a second rotor 17, wherein a first stator coil 111 is arranged on the first stator 11. The first rotor 16 is provided with a first permanent magnet 161, and the first permanent magnet 161 corresponds to the first stator 11, the first rotor 16 can rotate in the first stator 11 to generate a first rotating magnetic field through the first permanent magnet 161, and the first stator coil 111 can supply power to the outside when the first rotating magnetic field sweeps. In addition, the second rotor coil 172 is provided on the second rotor 17, and the second rotor coil 172 corresponds to the first stator 11, the second rotor 17 is rotatable in the first stator 11, and generates a second rotating magnetic field when the second rotor coil 172 is energized, and the first stator coil 111 is also able to supply power to the outside when the second rotating magnetic field sweeps over, but of course, the first stator coil 111 may also supply power to the outside when the first rotating magnetic field and the second rotating magnetic field sweep over the first stator coil 111 at the same time.
In this way, when the hybrid excitation generator 10 is operating, the operating current of the second rotor coil 172 can be adjusted to adjust the magnetic field strength in the first stator 11, so that the output voltage of the hybrid excitation generator 10 can be adjusted, and when the performance of the first permanent magnet 161 is affected by the ambient temperature and the like, and when a load is suddenly applied or removed, the magnetic field strength in the first stator 11 can be adjusted by adjusting the operating current of the second rotor coil 172, so that the voltage steady-state index and the voltage transient index of the hybrid excitation generator 10 can be improved.
It should be noted that the first stator 11 may further include a first stator 11 core (not shown), and the first stator coil 111 is embedded in the first stator 11 core; a first rotor 16 iron core (not shown) may also be disposed on the first rotor 16, and the first permanent magnet 161 is disposed on the first rotor 16 iron core; the second rotor 17 may also be provided with a second rotor 17 core (not shown), and the second rotor coil is embedded in the second rotor 17 core.
Further, the hybrid excitation generator 10 may further include a rotating shaft 14, and the first rotor 16 and the second rotor 17 are both mounted on the rotating shaft 14, in other words, the first rotor 16 and the second rotor 17 rotate coaxially, and the rotating speeds of the two are the same, so that the current of the hybrid excitation generator 10 is adjusted by controlling the current of the second rotor coil 172, and the control difficulty is reduced.
It should be noted that, in other embodiments, the first rotor 16 and the second rotor 17 may also rotate asynchronously, and both may rotate independently, so as to control the rotation speed of the second rotor 17 independently, and adjust the operation condition of the hybrid excitation generator 10 more flexibly.
Further, the hybrid excitation generator 10 may further include a third rotor 18 attached to the rotating shaft 14, the third rotor 18 may be provided with a third rotor coil 183, the third rotor coil 183 may be electrically connected to the second rotor coil 172, the third rotor 18 may be capable of rotating together with the second rotor coil 172, and when the third rotor coil 183 has a magnetic field at a position thereof, the third rotor coil 183 cuts the magnetic field to supply power to the second rotor coil 172, and the second rotor coil 172 may be supplied with power in a brushless manner to improve reliability thereof, and in this way, the current supplied from the third rotor coil 183 to the second rotor coil 172 may be adjusted by increasing or removing the magnetic field at the position of the third rotor 18, or adjusting the magnetic field strength at the position of the third rotor 18.
In other embodiments, the second rotor coil 172 may be connected to a power source through a component connector such as a brush.
Further, the hybrid excitation generator 10 may further include a second stator 12, the third rotor 18 corresponds to the second stator 12, and the second stator 12 is provided with a second stator coil 122, and the second stator coil 122 is capable of generating a second magnetic field when being energized to be cut by the third rotor coil 183. In other words, the hybrid excitation generator 10 generates the second magnetic field at the third rotor coil 183 through the second stator coil 122, so that the third rotor coil 183 supplies power to the second rotor coil 172, or the second stator 12 and the third rotor 18 form an exciter for supplying power to the second rotor coil 172.
Further, the hybrid excitation generator 10 may further include a voltage regulator 13, the voltage regulator 13 is electrically connected to the second stator coil 122 and the first stator coil 111, respectively, and the voltage regulator 13 is capable of regulating the current of the second stator coil 122.
In the present embodiment, the voltage regulator 13 is electrically connected to the sampling line 112 of the first stator coil 111 and electrically connected to the second stator coil 122, when the voltage of the first stator coil 111 reaches a first preset voltage, the electronic voltage regulator may supply power to the second stator coil 122, and adjust the voltage of the second stator coil 122 according to the voltage of the first stator coil 111 to adjust the current supplied to the second rotor coil 172 by the third rotor coil 183, so as to adjust the strong height of the second rotating magnetic field generated by the second rotor 17, thereby playing a role in further adjusting the output voltage of the hybrid excitation generator 10.
Referring to fig. 2, the hybrid excitation generator 10 may further include a housing 15, the first stator 11 and the second stator 12 are both mounted on an inner wall of the housing 15, the rotating shaft 14 penetrates the housing 15 and is rotatably connected to the housing 15, and the first rotor 16, the second rotor 17 and the third rotor 18 are all disposed in the housing 15, so that when the rotating shaft 14 is driven, the first rotor 16 and the second rotor 17 are driven to rotate in the first stator 11, and the third rotor 18 is driven to rotate in the second stator 12.
In the present embodiment, the first rotor 16, the second rotor 17 and the third rotor 18 may be sequentially arranged on the rotating shaft 14. In other words, the second rotor 17 is located between the first rotor 16 and the third rotor 18, thereby reducing the distance between the second rotor 17 and the third rotor 18 to improve the stability of the power supplied from the third rotor coil 183 to the second rotor coil 172.
Of course, in other embodiments, the first rotor 16 may also be disposed between the second rotor 17 and the third rotor 18.
Further, the width of the gap between the second rotor 17 and the third rotor 18 in the first direction a may be smaller than the width of the gap between the second rotor 17 and the third rotor 18 in the first direction a, where the first direction a is the axial direction of the rotating shaft 14, so that when the first stator coil 111 generates the second magnetic field, the mutual influence between the first magnetic field and the second rotating magnetic field generated by the second rotor coil 172 is small, and the power generation stability of the hybrid excitation generator 10 is improved.
Furthermore, the housing 15 may be formed with an outlet hole 151, the outlet hole 151 is used for allowing the output line 113 of the first stator coil 111 and the connection line 121 of the second stator coil 122 to pass through the housing 15, and the outlet hole 151 corresponds to the interval between the second rotor 17 and the third rotor 18. Since the space between the second rotor 17 and the third rotor 18 is wide, the output wire 113 of the first stator coil 111 and the connection wire 121 of the second stator coil 122 are easily led out of the housing 15 through the outlet hole 151, and the sampling wire 112 of the first stator coil 111 is also led out of the housing 15 through the outlet hole 151.
The embodiment of the utility model provides a hybrid excitation generator 10's theory of operation is:
the hybrid excitation generator 10 comprises a first stator 11, a first rotor 16 and a second rotor 17, wherein a first stator coil 111 is arranged on the first stator 11. The first rotor 16 is provided with a first permanent magnet 161, and the first permanent magnet 161 corresponds to the first stator 11, the first rotor 16 can rotate in the first stator 11 to generate a first rotating magnetic field through the first permanent magnet 161, and the first stator coil 111 can supply power to the outside when the first rotating magnetic field sweeps. In addition, the second rotor coil 172 is provided on the second rotor 17, and the second rotor coil 172 corresponds to the first stator 11, the second rotor 17 is rotatable in the first stator 11, and generates a second rotating magnetic field when the second rotor coil 172 is energized, and the first stator coil 111 is also able to supply power to the outside when the second rotating magnetic field sweeps over, but of course, the first stator coil 111 may also supply power to the outside when the first rotating magnetic field and the second rotating magnetic field sweep over the first stator coil 111 at the same time. In this way, when the hybrid excitation generator 10 operates, the intensity of the second rotating magnetic field in the first stator 11 can be adjusted by adjusting the operating current of the second rotor coil 172, so that the output voltage of the hybrid excitation generator 10 can be adjusted, and when the performance of the first permanent magnet 161 is affected by the ambient temperature and the like, and when a load is suddenly applied or removed, the intensity of the magnetic field in the first stator 11 can be adjusted by adjusting the operating current of the second rotor coil 172, so as to improve the voltage steady-state index and the voltage transient index of the hybrid excitation generator 10.
In summary, the following steps:
an embodiment of the utility model provides a hybrid excitation generator 10, it has can adjust output voltage, and its voltage steady state index and the better characteristics of voltage transient state index.
The above description is only a preferred embodiment of the present invention, and is not intended to limit the present invention, and it will be apparent to those skilled in the art that the features in the above embodiments may be combined with each other without conflict, and various modifications and variations of the present invention are possible. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention. The present embodiments are to be considered as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Claims (10)
1. A hybrid excitation generator, comprising a first stator (11), a first rotor (16) and a second rotor (17);
the first rotor (16) is provided with a first permanent magnet (161) and corresponds to the first stator (11), and the first rotor (16) can rotate in the first stator (11) so as to generate a first rotating magnetic field through the first permanent magnet (161);
a second rotor coil (172) is arranged on the second rotor (17) and corresponds to the first stator (11), the second rotor (17) can rotate in the first stator (11), and a second rotating magnetic field is generated when the second rotor coil (172) is electrified;
the first stator (11) is provided with a first stator coil (111), and the first stator coil (111) can supply power to the outside when the first rotating magnetic field and/or the second rotating magnetic field sweeps.
2. The hybrid excitation generator according to claim 1, wherein the hybrid excitation generator (10) further comprises a rotating shaft (14), and the first rotor (16) and the second rotor (17) are both mounted to the rotating shaft (14).
3. A hybrid excitation generator according to claim 2, wherein the hybrid excitation generator (10) further comprises a third rotor (18) mounted to the shaft (14);
and a third rotor coil (183) is arranged on the third rotor (18), the third rotor coil (183) is electrically connected with the second rotor coil (172) and can cut the magnetic field when the third rotor coil (183) rotates with the second rotor coil (172) and the position of the third rotor coil has the magnetic field, so that power is supplied to the second rotor coil (172).
4. A hybrid excitation generator according to claim 3, wherein the hybrid excitation generator (10) further comprises a second stator (12);
the third rotor (18) corresponds to the second stator (12), a second stator coil (122) is arranged on the second stator (12), and the second stator coil (122) can generate a second magnetic field under the condition of electrification so as to be cut by the third rotor coil (183).
5. The hybrid excitation generator according to claim 4, wherein the hybrid excitation generator (10) further comprises a voltage regulator (13), and the voltage regulator (13) is electrically connected to the second stator coil (122) and the first stator coil (111), respectively, and is capable of regulating a current of the second stator coil (122).
6. The hybrid excitation generator of claim 4, wherein the hybrid excitation generator (10) further comprises a housing (15);
the first stator (11) and the second stator (12) are mounted on the inner wall of the shell (15), the rotating shaft (14) penetrates into the shell (15) and is rotatably connected with the shell (15), and the first rotor (16), the second rotor (17) and the third rotor (18) are arranged in the shell (15).
7. The hybrid excitation generator according to claim 6, wherein the first rotor (16), the second rotor (17), and the third rotor (18) are arranged in the rotating shaft (14) in this order.
8. Hybrid excitation generator according to claim 6, wherein the width of the space between the second rotor (17) and the third rotor (18) in a first direction (A) is smaller than the width of the space between the second rotor (17) and the third rotor (18) in the first direction (A), wherein the first direction (A) is the axial direction of the rotating shaft (14).
9. The hybrid excitation generator according to claim 8, wherein an outlet hole (151) is formed in the housing (15), the outlet hole (151) is used for allowing an output wire (113) of the first stator coil (111) and a connecting wire (121) of the second stator coil (122) to pass through the housing (15), and the outlet hole (151) corresponds to a space between the second rotor (17) and the third rotor (18).
10. A power plant, characterized by comprising a hybrid excitation generator (10) according to any one of claims 1-9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022216862.1U CN213341955U (en) | 2020-09-30 | 2020-09-30 | Hybrid excitation generator and power generation device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022216862.1U CN213341955U (en) | 2020-09-30 | 2020-09-30 | Hybrid excitation generator and power generation device |
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| Publication Number | Publication Date |
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| CN213341955U true CN213341955U (en) | 2021-06-01 |
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| CN202022216862.1U Active CN213341955U (en) | 2020-09-30 | 2020-09-30 | Hybrid excitation generator and power generation device |
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| CN (1) | CN213341955U (en) |
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