CN112302878A - Semi-direct-drive serial double-wind-wheel wind turbine generator set - Google Patents
Semi-direct-drive serial double-wind-wheel wind turbine generator set Download PDFInfo
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- CN112302878A CN112302878A CN202011380866.1A CN202011380866A CN112302878A CN 112302878 A CN112302878 A CN 112302878A CN 202011380866 A CN202011380866 A CN 202011380866A CN 112302878 A CN112302878 A CN 112302878A
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- 230000005389 magnetism Effects 0.000 claims abstract description 20
- 239000000463 material Substances 0.000 claims description 7
- 238000005259 measurement Methods 0.000 claims description 5
- 238000010248 power generation Methods 0.000 claims description 4
- 238000004804 winding Methods 0.000 claims description 3
- 230000005540 biological transmission Effects 0.000 description 4
- 238000001816 cooling Methods 0.000 description 3
- 230000008878 coupling Effects 0.000 description 3
- 238000010168 coupling process Methods 0.000 description 3
- 238000005859 coupling reaction Methods 0.000 description 3
- 230000009977 dual effect Effects 0.000 description 3
- 235000017166 Bambusa arundinacea Nutrition 0.000 description 1
- 235000017491 Bambusa tulda Nutrition 0.000 description 1
- 241001330002 Bambuseae Species 0.000 description 1
- 235000015334 Phyllostachys viridis Nutrition 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 239000011425 bamboo Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 239000000498 cooling water Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000005284 excitation Effects 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
- F03D—WIND MOTORS
- F03D9/00—Adaptations of wind motors for special use; Combinations of wind motors with apparatus driven thereby; Wind motors specially adapted for installation in particular locations
- F03D9/20—Wind motors characterised by the driven apparatus
- F03D9/25—Wind motors characterised by the driven apparatus the apparatus being an electrical generator
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
- F03D—WIND MOTORS
- F03D1/00—Wind motors with rotation axis substantially parallel to the air flow entering the rotor
- F03D1/02—Wind motors with rotation axis substantially parallel to the air flow entering the rotor having a plurality of rotors
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
- F03D—WIND MOTORS
- F03D15/00—Transmission of mechanical power
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
- F03D—WIND MOTORS
- F03D7/00—Controlling wind motors
- F03D7/02—Controlling wind motors the wind motors having rotation axis substantially parallel to the air flow entering the rotor
- F03D7/0204—Controlling wind motors the wind motors having rotation axis substantially parallel to the air flow entering the rotor for orientation in relation to wind direction
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
- F03D—WIND MOTORS
- F03D7/00—Controlling wind motors
- F03D7/02—Controlling wind motors the wind motors having rotation axis substantially parallel to the air flow entering the rotor
- F03D7/022—Adjusting aerodynamic properties of the blades
- F03D7/0224—Adjusting blade pitch
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
- F03D—WIND MOTORS
- F03D7/00—Controlling wind motors
- F03D7/02—Controlling wind motors the wind motors having rotation axis substantially parallel to the air flow entering the rotor
- F03D7/04—Automatic control; Regulation
- F03D7/042—Automatic control; Regulation by means of an electrical or electronic controller
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/70—Wind energy
- Y02E10/72—Wind turbines with rotation axis in wind direction
Abstract
The invention discloses a semi-direct-drive serial double-wind-wheel wind power generator set which comprises a double-rotor generator, wherein the double-rotor generator is sequentially provided with an outer rotor, an outer stator, a magnetism isolating layer, an inner stator and an inner rotor from outside to inside; the complete decoupling is realized on the aspects of structure, electromagnetism and control, so that the rotating speed cooperative control of the two wind wheels is realized, the overall output of the unit is optimal, the wind energy utilization rate is improved, the diameter of the wind wheels is reduced, the power consumption cost of the wind generating set is reduced, and the overall efficiency of the unit is the highest.
Description
Technical Field
The invention belongs to the technical field of wind generating sets, and particularly belongs to a semi-direct-drive tandem double-wind-wheel wind generating set.
Background
With the rapid development of installed capacity of wind power, the current mainstream wind turbine generator adopts a single-wind-wheel horizontal shaft form and develops towards large scale, but with the large scale development of the wind turbine generator, the core key technology of the wind turbine generator is limited, and the development of a new-form efficient wind energy conversion device is urgently needed.
The serial double-wind wheel structural form is emphasized by the high efficiency and the maturity of key core equipment. However, the two wind wheels of the currently reported double-wind-wheel unit are coaxial or connected to the main shaft through a bevel gear, and the two wind wheels of the structure can only rotate at the same speed, and cannot realize independent control of the rotating speeds of the two wind wheels, i.e. the two wind wheels cannot be decoupled, so that the two wind wheels cannot operate in respective high-efficiency areas, and the overall efficiency of the unit is low.
Disclosure of Invention
In order to solve the problems that a tandem type double-wind-wheel wind turbine set cannot be decoupled in operation and is low in operation efficiency in the prior art, the invention provides a semi-direct-drive tandem type double-wind-wheel wind turbine set with transmission decoupling, complete decoupling is realized in structure, electromagnetism and control, so that the rotating speed of two wind wheels is cooperatively controlled, the aim of optimizing the overall output of the set is fulfilled, the wind energy utilization rate is improved, the diameter of the wind wheels is reduced, the power consumption cost of the wind turbine set is reduced, and the overall efficiency of the set is maximized.
In order to achieve the purpose, the invention provides the following technical scheme: a semi-direct-drive serial double-wind-wheel wind turbine generator set comprises a double-rotor generator, wherein the double-rotor generator is sequentially provided with an outer rotor, an outer stator, a magnetism isolating layer, an inner stator and an inner rotor from outside to inside, the outer rotor is sleeved on the outer stator to form a front wind turbine generator, the inner stator is sleeved on the inner rotor to form a rear wind turbine generator, and the front wind turbine generator is sleeved on the rear wind turbine generator;
the output shaft of the front wind wheel generator is coaxial with the output shaft of the rear wind wheel generator, the directions of the output shafts are opposite, and a magnetism isolating layer is arranged between the front wind wheel generator and the rear wind wheel generator;
an output shaft of the front wind wheel generator is connected with a front gear box, and the front gear box is connected with a front wind wheel in the double wind wheels through a main shaft; the output shaft of the rear wind wheel generator is connected with a rear gear box, and the rear gear box is connected with a rear wind wheel in the double wind wheels through a main shaft.
Further, the front wind wheel is arranged in the upwind direction, the rear wind wheel is arranged in the downwind direction, and the rotation directions of the front wind wheel and the rear wind wheel are opposite.
Further, the main shaft comprises a front main shaft and a rear main shaft, low-speed teeth in the front wheel gearbox are connected with a front wind wheel through the front main shaft, and high-speed teeth of the front wheel gearbox are connected with a front wind wheel generator of the dual-rotor generator; the low-speed gear of the rear gear box is connected with the rear wind wheel through a rear main shaft, and the high-speed shaft of the rear gear box is connected with a rear wind wheel generator; and the main shaft is also provided with a slip ring.
Further, an air gap is arranged between the outer rotor and the outer stator, an air gap is arranged between the inner stator and the inner rotor, the outer rotor and the inner rotor are permanent magnet rotors, and the outer stator and the inner stator are winding stators.
Furthermore, the inner stator and the outer stator in the double-rotor generator are isolated through a magnetism isolating layer, the magnetism isolating layer is made of magnetism isolating materials, and the magnetism isolating layer is used for isolating electromagnetism of the inner rotor and the outer rotor.
Furthermore, the front main shaft is connected with the low-speed teeth of the front gear box through a coupler, and the rear main shaft is connected with the low-speed teeth of the rear gear box through a coupler.
Further, the outer rotor is connected with the front gearbox high-speed shaft through a flange or a bolt; the output shaft of the inner rotor is connected with the high-speed shaft of the rear gear box through a coupler.
Further, an outer rotor front bearing is arranged at the front section of the outer rotor, an outer rotor rear bearing is arranged at the rear section of the outer rotor, the outer rotor front bearing and the outer rotor rear bearing are respectively fixed at the front section and the rear section of the outer stator, and the outer rotor front bearing and the outer rotor rear bearing are used for supporting the outer rotor.
Further, an inner rotor front bearing is arranged on the front section of the inner rotor, an inner rotor rear bearing is arranged on the rear section of the inner rotor, the inner rotor front bearing and the inner rotor rear bearing are respectively fixed on the front section and the rear section of the inner stator, and the inner rotor front bearing and the inner rotor rear bearing are used for supporting the inner rotor.
Further, still include cabin, tower section of thick bamboo, anemometry system, driftage system and electrical system and control system, wherein: the double-rotor generator and the gear box are arranged in the engine room, the front wind wheel and the rear wind wheel are respectively arranged on two sides of the outer portion of the engine room, pitch control systems are arranged on the front wind wheel and the rear wind wheel, the engine room is connected to the tower barrel through a yaw system, a wind measurement system is arranged on the upper portion of the outer surface of the engine room, an electrical system and a control system are arranged in the engine room, and electrical signal lines of the electrical system and the control system penetrate through the inside of the main shaft and are connected into the yaw system, the wind measurement system and the pitch control system.
Compared with the prior art, the invention has at least the following beneficial effects: the double-wind-wheel wind turbine generator set is provided with the front wind wheel and the rear wind wheel, wind energy is captured by the front wind wheel and the rear wind wheel simultaneously, the wind energy is accelerated through the front gear box and the rear gear box respectively, the high-speed shafts of the front gear box and the rear gear box are connected to the outer rotor and the inner rotor of the double-rotor generator, the two gear boxes and the double-rotor generator are completely decoupled in transmission and structure, and the two wind wheels are controlled in a coordinated mode, so that the generator set is better in output and lower in load, the wind energy utilization rate is greatly improved, the radius of the wind wheels is shortened, the load of a single wind wheel is reduced, the efficiency of the.
The wind turbine set provided by the invention is provided with the front wind wheel and the rear wind wheel, compared with a single wind turbine set with the same capacity, the wind turbine set shortens the radius of the wind wheels, lightens the load of the single wind wheel, and the double wind wheels rotate oppositely in opposite directions, so that the output power of the wind wheels can be increased, and the utilization rate of wind energy is further improved.
Furthermore, the invention adopts a structure that the front gear box and the rear gear box are accelerated, the two gear boxes are respectively and independently connected with the front wind wheel and the rear wind wheel, and decoupling is carried out on the transmission structure, so that the independent operation and cooperative control of the front wind wheel and the rear wind wheel are essentially realized.
Furthermore, the double-rotor generator adopts the magnetism isolating material to isolate magnetism between the inner stator and the outer stator, so that electromagnetism and the structure between the inner rotor and the outer rotor are completely decoupled, the rotating speed of the double-rotor motor is independently controlled, the independent control of the two wind wheels is realized, the overall efficiency is higher, the power density of the generator is effectively improved, the structure is compact, the using amount of permanent magnet materials, magnetic steel and the like of the double-rotor generator is reduced, the size of the generator is reduced, the materials such as a cabin of a wind turbine generator and the like are reduced, and the material utilization rate is further improved.
Drawings
FIG. 1 is a schematic structural diagram of a wind turbine generator according to the present invention;
FIG. 2 is a schematic view of a rotating structure of a double wind wheel of the wind turbine generator system;
in the drawings: the wind power generation device comprises a front wind wheel 1, a rear wind wheel 2, a front main shaft 3, a rear main shaft 4, a front main bearing 5, a rear main bearing 6, a front main bearing seat 7, a rear main bearing seat 8, a cabin 9, an outer rotor front bearing 10, an outer rotor rear bearing 11, an inner rotor front bearing 12, an inner rotor rear bearing 13, an outer rotor 14, an outer stator 15, a magnetic isolation layer 16, an inner stator 17, an inner rotor 18, a tower barrel 19, an anemometer 20, a front gear box 21 and a rear gear box 22.
Detailed Description
The preferred embodiments of the present invention will be described in conjunction with the accompanying drawings, and it will be understood that they are described herein for the purpose of illustration and explanation and not limitation.
As shown in fig. 1, a half-direct-drive tandem double-wind-wheel wind turbine generator set with transmission decoupling includes: the wind power generation system comprises a front wind wheel 1, a rear wind wheel 2, a front main shaft 3, a rear main shaft 4, a front main bearing 5, a rear main bearing 6, a front main bearing seat 7, a rear main bearing seat 8, a front gear box 21, a rear gear box 22, a cabin 9, a tower 19, an anemoscope 20, a double-rotor generator, an electrical system, a control system and a pitch control system.
Wherein, birotor generator unit mainly includes: the rotor comprises an outer rotor 14, an outer stator 15, a magnetism isolating layer 16, an inner stator 17, an inner rotor 18, an outer rotor front bearing 10, an outer rotor rear bearing 11, an inner rotor front bearing 12 and an inner rotor rear bearing 13;
as shown in fig. 1 and 2, the front wind wheel 1 and the rear wind wheel 2 are arranged in series to form a double wind wheel, the front wind wheel 1 and the rear wind wheel 2 are respectively arranged at two ends of the nacelle 9, in order to capture more wind energy, the front wind wheel 1 is arranged in the upwind direction, the rear wind wheel 2 is arranged in the downwind direction, and the front wind wheel 1 and the rear wind wheel 2 rotate in opposite directions, namely, counter-rotating.
Preferably, a variable pitch system is further arranged in the rear wind wheel 2 of the front wind wheel 1.
Preferably, one end of the front main shaft 3 extends out of the engine room 9 to be fixedly connected with the front wind wheel 1, the front gearbox 21 is arranged in the engine room 9, the other end of the front main shaft 3 extends into the engine room 9 to be connected with low-speed teeth of the front gearbox 21, a high-speed shaft of the front gearbox 21 is connected with the outer rotor 14 of the double-rotor generator, and when wind exists, the front wind wheel 1 rotates to accelerate speed through the front gearbox 21 to drive the outer rotor 14 of the double-rotor generator to rotate and generate power;
preferably, one end of the rear main shaft 4 extends out of the engine room 9 to be fixedly connected with the rear wind wheel 2, the rear gear box 22 is arranged in the engine room 9, the other end of the rear main shaft 4 extends into the engine room 9 to be connected with low-speed teeth of the rear gear box 22, a high-speed shaft of the rear gear box 22 is connected with the inner rotor 18 of the dual-rotor generator, and when wind exists, the rear wind wheel 2 rotates to accelerate speed through the rear gear box 22 to drive the inner rotor 18 to rotate to generate power;
preferably, the front main shaft 3 and the rear main shaft 4 are further provided with a sliding ring.
Preferably, as shown in fig. 1, the dual-rotor generator of the present invention is disposed in the nacelle 9, the outer rotor 14 and the outer stator 15 form a front wind wheel generator, the inner stator 17 and the inner rotor 18 form a rear wind wheel generator, the front wind wheel generator is connected to a front gear box 21, the front gear box 21 is connected to the front wind wheel 1 of the dual wind wheel through a main shaft, the rear wind wheel generator is connected to a rear gear box 22, and the rear gear box 22 is connected to the rear wind wheel 2 of the dual wind wheel through a main shaft.
Preferably, a magnetism isolating layer 16 is arranged between the front wind turbine generator and the rear wind turbine generator, namely, a magnetism isolating layer 16 is arranged between an inner stator 17 and an outer stator 15 in the double-rotor generator, and the magnetism isolating layer 16 is made of magnetism isolating materials and can completely decouple electromagnetism and structure between an inner rotor 18 and an outer rotor 14.
Preferably, the outer rotor 14 and the outer stator 15 are correspondingly arranged with an air gap in between, the inner stator 17 and the inner rotor 18 are correspondingly arranged with an air gap in between, the outer rotor 14 and the inner rotor 18 are permanent magnet rotors, and the outer stator 15 and the inner stator 17 are winding stators.
In a preferred embodiment of the present invention, the front main shaft 3 is connected to the low-speed teeth of the front gear box 21 through a coupling, the high-speed shaft of the front gear box 21 is connected to the outer rotor 14 of the dual-rotor generator through a bolt, the rear main shaft 4 is connected to the low-speed teeth of the rear gear box 22 through a coupling, and the high-speed shaft of the rear gear box 22 is connected to the output shaft of the inner rotor 18 of the dual-rotor generator through a coupling.
Preferably, the outer rotor 14 is also connected to the front gearbox 21 high-speed shaft by a flange.
Preferably, the front section and the rear section of the outer rotor 14 are respectively provided with an outer rotor front bearing 10 and an outer rotor rear bearing 11, the outer stator 15 is correspondingly provided with bearing seats of the outer rotor front bearing 10 and the outer rotor rear bearing 11, the outer rotor front bearing 10 and the outer rotor rear bearing 11 are respectively fixed on the corresponding bearing seats, and the outer rotor front bearing 10 and the outer rotor rear bearing 11 are used for supporting the outer rotor 15.
Preferably, the front section and the rear section of the inner rotor 18 are respectively provided with an inner rotor front bearing 12 and an inner rotor rear bearing 13, the inner stator 17 is correspondingly provided with bearing seats of the inner rotor front bearing 12 and the inner rotor rear bearing 13, the inner rotor front bearing 12 and the inner rotor rear bearing 13 are respectively fixed on the corresponding bearing seats, and the inner rotor 17 is supported by the inner rotor front bearing 12 and the inner rotor rear bearing 13.
Preferably, a front main bearing support 7 and a rear main bearing support 8 are fixed on the nacelle 9, the front main bearing 5 is fixed in the front bearing base 7 for supporting the front main shaft 3, and the rear main bearing 6 is fixed in the rear bearing support 8 for supporting the rear main shaft 4.
Preferably, the front main shaft 3 and the rear main shaft 5 can be supported by a single bearing or can be supported by two bearings.
Preferably, a nacelle 9 of the wind turbine generator is connected to a tower 19 through a yaw system, an anemoscope 20 is arranged on the outer surface of the nacelle 9, an electrical system and a control system are arranged inside the nacelle 9, and electrical signal lines of the electrical system and the control system can penetrate through the inside of a main shaft and are connected into the yaw system, a wind measuring system and a pitch system from a slip ring.
In a preferred embodiment of the present invention, the front gear box 21 includes two-stage planets, one-stage parallel teeth, low-speed planet bearings, and high-speed parallel teeth bearings, and the rear gear box 22 includes two-stage planets, high-speed teeth bearings, and low-speed teeth bearings.
As described above, the skilled person in the art can select or combine the following technical means based on the basic scheme of the present invention:
the front wind wheel 1 and the rear wind wheel 2 rotate in the same direction; the radius ratio of the front wind wheel 1 to the rear wind wheel 2 is variable; the permanent magnets of the outer rotor 14 and the inner rotor 18 in the dual rotor generator are set in an excitation mode.
A cooling layer can be arranged between the inner stator 17 and the outer stator 15, the cooling layer is water-cooled and provided with a cooling water pipe, and the cooling layer can cool the inner stator 17 and the outer stator 15 and further provide the output efficiency of the generator.
Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that changes may be made in the embodiments and/or equivalents thereof without departing from the spirit and scope of the invention. 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.
Claims (10)
1. A semi-direct-drive tandem double-wind-wheel wind turbine generator set is characterized by comprising a double-rotor generator, wherein the double-rotor generator is sequentially provided with an outer rotor (14), an outer stator (15), a magnetism isolating layer (16), an inner stator (17) and an inner rotor (18) from outside to inside, the outer rotor (14) is sleeved on the outer stator (15) to form a front wind turbine generator, the inner stator (17) is sleeved on the inner rotor (18) to form a rear wind turbine generator, and the front wind turbine generator is sleeved on the rear wind turbine generator;
the output shaft of the front wind wheel generator is coaxial with the output shaft of the rear wind wheel generator, the directions of the output shafts are opposite, and a magnetism isolating layer (16) is arranged between the front wind wheel generator and the rear wind wheel generator;
an output shaft of the front wind wheel generator is connected with a front gear box (21), and the front gear box (21) is connected with a front wind wheel (1) in the double wind wheels through a main shaft; the output shaft of the rear wind wheel generator is connected with a rear gear box (22), and the rear gear box (22) is connected with a rear wind wheel (2) in the double wind wheels through a main shaft.
2. The half direct-drive tandem double-wind-wheel wind power generation unit according to claim 1, wherein the front wind wheel (1) is arranged in an upwind direction, the rear wind wheel (2) is arranged in a downwind direction, and the rotation directions of the front wind wheel (1) and the rear wind wheel (2) are opposite.
3. The half direct-drive tandem double-wind-wheel wind turbine generator set according to claim 1, wherein the main shaft comprises a front main shaft (3) and a rear main shaft (4), low-speed teeth in the front-wheel gear box (21) are connected with the front wind wheel (1) through the front main shaft (3), and high-speed teeth of the front gear box (21) are connected with a front wind wheel generator of the double-rotor generator; the low-speed teeth of the rear gear box (22) are connected with the rear wind wheel (2) through a rear main shaft (4), and the high-speed shaft of the rear gear box (22) is connected with a rear wind wheel generator; and the main shaft is also provided with a slip ring.
4. The wind turbine generator set with double wind wheels and a semi-direct-drive serial structure as claimed in claim 1, wherein an air gap is provided between the outer rotor (14) and the outer stator (15), an air gap is provided between the inner stator (17) and the inner rotor (18), the outer rotor (14) and the inner rotor (18) are permanent magnet rotors, and the outer stator (15) and the inner stator (17) are winding stators.
5. The half direct-drive tandem double-wind-wheel wind power generation set according to claim 1, wherein the inner stator (17) and the outer stator (15) in the double-rotor generator are isolated by a magnetism isolating layer (16), the magnetism isolating layer (16) is made of magnetism isolating materials, and the magnetism isolating layer (16) is used for isolating electromagnetism of the inner rotor (18) and the outer rotor (14).
6. The wind turbine generator set with the half direct-drive tandem double wind wheels as claimed in claim 1, wherein the front main shaft (3) is connected with the low-speed teeth of the front gearbox (21) through a coupler, and the rear main shaft (4) is connected with the low-speed teeth of the rear gearbox (22) through a coupler.
7. The half direct-drive tandem double-wind-wheel wind turbine generator set according to claim 1, wherein the outer rotor (14) is connected with a high-speed shaft of a front gearbox (21) through a flange or a bolt; the output shaft of the inner rotor (18) is connected with the high-speed shaft of the rear gear box (22) through a coupler.
8. The half direct-drive tandem double-wind-wheel wind turbine generator system according to claim 1, wherein an outer rotor front bearing (10) is arranged at the front section of the outer rotor (14), an outer rotor rear bearing (11) is arranged at the rear section of the outer rotor (14), the outer rotor front bearing (10) and the outer rotor rear bearing (11) are respectively fixed at the front section and the rear section of the outer stator (15), and the outer rotor front bearing (10) and the outer rotor rear bearing (11) are used for supporting the outer rotor (15).
9. The wind turbine generator set with half direct-drive tandem double wind wheels as claimed in claim 1, wherein the front section of the inner rotor (18) is provided with an inner rotor front bearing (12), the rear section of the inner rotor (18) is provided with an inner rotor rear bearing (13), the inner rotor front bearing (12) and the inner rotor rear bearing (13) are respectively fixed on the front section and the rear section of the inner stator (17), and the inner rotor front bearing (12) and the inner rotor rear bearing (13) support the inner rotor (17).
10. The wind turbine generator system of claim 1, further comprising a nacelle (9), a tower (19), a wind measurement system, a yaw system, an electrical system and a control system, wherein: the double-rotor generator and the gear box are arranged in the engine room (9), the front wind wheel (1) and the rear wind wheel (2) are respectively arranged on two sides of the outer portion of the engine room (9), the front wind wheel (1) and the rear wind wheel (2) are provided with a pitch control system, the engine room (9) is connected to the tower barrel (19) through the yaw system, the upper portion of the outer surface of the engine room (9) is provided with a wind measurement system, the electrical system and the control system are arranged inside the engine room (9), and electrical signal lines of the electrical system and the control system penetrate through the inside of the main shaft and are connected into the yaw system, the wind measurement system and the pitch control system.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011380866.1A CN112302878A (en) | 2020-11-30 | 2020-11-30 | Semi-direct-drive serial double-wind-wheel wind turbine generator set |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011380866.1A CN112302878A (en) | 2020-11-30 | 2020-11-30 | Semi-direct-drive serial double-wind-wheel wind turbine generator set |
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| Publication Number | Publication Date |
|---|---|
| CN112302878A true CN112302878A (en) | 2021-02-02 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011380866.1A Pending CN112302878A (en) | 2020-11-30 | 2020-11-30 | Semi-direct-drive serial double-wind-wheel wind turbine generator set |
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| CN (1) | CN112302878A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113638841A (en) * | 2021-09-23 | 2021-11-12 | 华北电力大学 | Variable-pitch control method of double-wind-wheel wind turbine based on neural network predictive control |
-
2020
- 2020-11-30 CN CN202011380866.1A patent/CN112302878A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113638841A (en) * | 2021-09-23 | 2021-11-12 | 华北电力大学 | Variable-pitch control method of double-wind-wheel wind turbine based on neural network predictive control |
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