Power generation plant

Abstract

The application discloses a power generation equipment, which comprises a frame, a plurality of rotating members, at least one magnetic isolation sleeve and a plurality of power generation assemblies. The rotating members are rotatably arranged on the frame. The magnetic isolation sleeve extends coaxially with the rotating members, and is arranged on the outer circumferential side of at least part of the rotating members. The magnetic isolation sleeve is arranged on the frame, and is adapted to block the magnetic field between the inner cavity of the magnetic isolation sleeve and the outer circumferential side of the magnetic isolation sleeve. The plurality of power generation assemblies are multi-layered and sleeved on the outer circumferential side of at least part of the rotating members, and the magnetic isolation sleeve is arranged between two adjacent power generation assemblies. Each power generation assembly comprises a stator and a rotor. The stator is connected with the frame, and the rotor is connected with the rotating member, so that one of the stator and the rotor is rotatably sleeved on the outer circumferential side of the other. The power generation equipment has the advantages of compact structure and high power generation efficiency.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of power generation equipment, in particular to a power generation equipment. BACKGROUND

[0002] With the continuous increase of the power of wind turbine generators, the length of the fan blades is getting longer, and the manufacturing and operating conditions of the blades, main bearings and other components have approached the limit of the related materials. In addition, the super-long blades are easily affected by wind shear, tower shadow effect, turbulence effect and other effects during rotation, which easily causes flutter, and brings great challenges to the development, transportation and hoisting of wind turbine generators. The power density of the wind power generation equipment in the related art is low, and the volume is large. SUMMARY

[0003] The present application aims to at least partially solve one of the technical problems in the related art. To this end, the embodiments of the present application propose a power generation equipment, which has the advantages of compact structure and high power generation efficiency.

[0004] The power generation equipment of the embodiments of the present application comprises a rack and a rotating member, the rotating member is rotatably arranged on the rack, and a plurality of transmission members are coaxially and independently rotatable; at least one magnetic isolation sleeve, the magnetic isolation sleeve extends coaxially with the rotating member, and the magnetic isolation sleeve is arranged on the outer periphery of at least part of the rotating member, the magnetic isolation sleeve is arranged on the rack, and the magnetic isolation sleeve is adapted to block the magnetic field between the inner cavity of the magnetic isolation sleeve and the outer periphery of the magnetic isolation sleeve; a plurality of power generation assemblies, a plurality of the power generation assemblies are connected one by one with a plurality of the rotating members, a plurality of the power generation assemblies can be stacked on the outer periphery of at least part of the rotating member, and the magnetic isolation sleeve is arranged between two adjacent power generation assemblies, the power generation assembly comprises a stator and a rotor, the stator is connected with the rack, and the rotor is connected with the rotating member, so that one of the stator and the rotor can be rotatably arranged on the outer periphery of the other.

[0005] The power generation equipment of the embodiments of the present application synchronously generates electricity by arranging a plurality of power generation assemblies stacked on the outer periphery of the rotating member, the rotors of the plurality of power generation assemblies can correspond to a plurality of blades one by one, so that the power generation equipment of the embodiments of the present application can simultaneously convert the kinetic energy of a plurality of coaxially rotating blades into electrical energy to generate electricity, the rotor of the power generation assembly is connected with the corresponding blade and is rotatable relative to the rack, so that the rotor does not affect the movement of other rotors during rotation to realize mechanical decoupling of a plurality of power generation assemblies. The power generation equipment of the embodiments of the present application is provided with a magnetic isolation sleeve between two adjacent power generation assemblies to avoid the magnetic field of one of the two adjacent power generation assemblies affecting the magnetic field of the other, thereby realizing electrical decoupling of a plurality of power generation assemblies, thereby improving the power generation efficiency of the power generation equipment of the embodiments of the present application. The plurality of power generation assemblies are stacked along the radial direction, which saves the axial space, so that the power generation equipment of the embodiments of the present application has the advantages of compact structure and high power generation efficiency.

[0006] In some embodiments, the plurality of power generation assemblies comprises a first assembly and a second assembly, the first assembly is arranged inside the magnetic isolation sleeve, and the second assembly is arranged at the outer circumferential side of the magnetic isolation sleeve, the first assembly comprises an inner rotor and an inner stator, the second assembly comprises an outer rotor and an outer stator, the inner stator and the outer stator are connected to the magnetic isolation sleeve, and the inner rotor and the outer rotor are connected to the rotating member.

[0007] In some embodiments, the rotating member comprises a rotating shaft and a flange, the rotating shaft and the flange extend coaxially and are independently rotatable relative to the frame, the flange is connected to the outer rotor, and the rotating shaft is connected to the inner rotor.

[0008] In some embodiments, the power generation device further comprises a first wind wheel and a second wind wheel arranged coaxially, the flange is arranged at one end of the frame in the length direction and is rotatable relative to the frame, so as to be connected to the second wind wheel, and one end of the rotating shaft extends from the other end of the frame in the length direction, so as to be connected to the first wind wheel.

[0009] In some embodiments, a cooling flow channel is arranged inside the magnetic isolation sleeve, and the cooling flow channel is adapted to pass a cooling medium to cool the inner stator and the outer stator.

[0010] In some embodiments, the frame comprises a ring-shaped baffle and a cylindrical portion, the ring-shaped baffle is arranged at one end of the cylindrical portion, and the geometric axis of the ring-shaped baffle and the cylindrical portion coincide, the cylindrical portion is provided with an annular groove, the annular groove is arranged between the inner wall and the outer wall of the cylindrical portion, and the magnetic isolation sleeve is fitted in the annular groove.

[0011] In some embodiments, the cylindrical portion is provided with a reduced diameter section at the end away from the ring-shaped baffle, and the diameter of the reduced diameter section gradually decreases in the direction away from the ring-shaped baffle.

[0012] In some embodiments, the rotating shaft is provided with a first bearing and a second bearing, the first bearing is fitted between the rotating shaft and the ring-shaped baffle, and the second bearing is fitted between the rotating shaft and the reduced diameter section.

[0013] In some embodiments, the power generation device further comprises an outer rotor support, the outer rotor support is arranged at the outer circumferential side of the magnetic isolation sleeve, the outer rotor and the outer stator are arranged between the outer rotor support and the magnetic isolation sleeve, the outer rotor is rotatably arranged at the outer circumferential side of the outer stator, the outer rotor is connected to the outer rotor support, and the outer rotor support is connected to the flange plate.

[0014] In some embodiments, the outer rotor support includes first and second annular flanges rotatably fitted to the outer circumferential side of the reduced diameter section, the first and second annular flanges having a set interval in the length direction of the reduced diameter section to support the outer rotor support. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 is a structural schematic diagram of a power generation apparatus according to an embodiment of the present application.

[0016] REFERENCE NUMERALS

[0017] frame 1; annular flange 11; cylindrical portion 12; reduced diameter section 13;

[0018] rotating member 2; rotation shaft 21; first bearing 211; second bearing 212; flange 22;

[0019] power generation assembly 3; first assembly 31; inner rotor 311; inner stator 312; second assembly 32; outer rotor 321; outer stator 322;

[0020] magnetic shield 4;

[0021] outer rotor support 5; first annular flange 51; second annular flange 52. DETAILED DESCRIPTION

[0022] Embodiments of the present application are described in detail below with reference to the attached drawings. The embodiments described below are examples and are intended to explain the present application, and are not to be understood as limiting the present application.

[0023] The power generation apparatus according to an embodiment of the present application is described below with reference to Figure 1

[0024] The power generation apparatus according to an embodiment of the present application includes a frame 1, a rotating member 2, at least one magnetic shield 4, and a plurality of power generation assemblies 3.

[0025] The plurality of rotating members 2 are rotatably provided to the frame 1, and the plurality of rotating members 2 are coaxially and independently rotatable. Specifically, as shown in Figure 1 the frame 1 extends in the front-rear direction, the frame 1 is held fixed, the rotating member 2 is provided to the frame 1, and the rotation shaft 21 of the rotating member 2 that rotates relative to the frame 1 extends in the front-rear direction.

[0026] The magnetic shield 4 extends coaxially with the rotating member 2, and the magnetic shield 4 is provided to the outer circumferential side of at least part of the rotating member 2, the magnetic shield 4 is provided to the frame 1, and the magnetic shield 4 is adapted to block a magnetic field between the inner cavity of the magnetic shield 4 and the outer circumferential side of the magnetic shield 4.

[0027] ​Specifically, the magnetic isolation sleeve 4 is fixedly connected with the frame 1, when the rotating member 2 rotates relative to the frame 1, the rotating member 2 also rotates relative to the magnetic isolation sleeve 4, the magnetic isolation sleeve 4 is sleeved on the outer circumferential side of part of the rotating member 2, an annular cavity is formed between part of the rotating member 2 and the magnetic isolation sleeve 4, the magnetic isolation sleeve 4 is a soft magnetic material that is easy to be magnetized, when there is a magnetic field on the inner side or the outer side of the magnetic isolation sleeve 4, the magnetic isolation sleeve 4 can absorb the magnetic force lines in the inner or outer space of the magnetic isolation sleeve 4, so as to avoid the magnetic field in one of the inner side or the outer side of the magnetic isolation sleeve 4 affecting the magnetic field in the other.

[0028] The plurality of power generation assemblies 3 can be stacked in multiple layers on the outer circumferential side of at least part of the rotating member 2, and the magnetic isolation sleeve 4 is arranged between two adjacent power generation assemblies 3, the power generation assembly 3 comprises a stator and a rotor, the stator is connected with the frame 1, and the rotor is connected with the rotating member 2, so that one of the stator and the rotor can be rotatably sleeved on the outer circumferential side of the other.

[0029] Specifically, the power generation assembly 3 comprises a stator and a rotor, the stator and the rotor are relatively rotatable, the rotor is a permanent magnet material, the stator is provided with a winding group, when the rotor rotates relative to the stator, the winding group in the stator cuts the magnetic induction lines of the magnetic field generated by the rotor to form an electric current, thereby realizing power generation, the stator is connected with the frame 1 to facilitate the wiring of the winding group of the stator in the plurality of power generation assemblies 3 to transmit the electric energy generated by the plurality of power generation assemblies 3.

[0030] The plurality of power generation assemblies 3 are sleeved on the outer side of the rotating member 2, one of the plurality of power generation assemblies 3 can be sleeved on the outer circumferential side of the other, and the magnetic isolation sleeve 4 is arranged between two adjacent power generation assemblies 3 to avoid the magnetic fields of the two adjacent power generation assemblies 3 affecting each other.

[0031] The power generation device of the embodiment of the application synchronously generates power by arranging a plurality of power generation assemblies 3 stacked on the outer circumferential side of the rotating member 2, the rotors of the plurality of power generation assemblies 3 can correspond to the plurality of blades one by one, so that the power generation device of the embodiment of the application can simultaneously convert the kinetic energy of a plurality of coaxially rotating blades into electric energy to generate power, the rotor of the power generation assembly 3 is connected with the corresponding blade and is rotatable relative to the frame 1, so that the rotor does not affect the movement of other rotors in the process of rotation to realize mechanical decoupling of the plurality of power generation assemblies 3. The power generation device of the embodiment of the application is provided with the magnetic isolation sleeve 4 between two adjacent power generation assemblies 3 to avoid the magnetic field of one of the two adjacent power generation assemblies 3 affecting the magnetic field of the other, thereby realizing electrical decoupling of the plurality of power generation assemblies 3, thereby improving the power generation efficiency of the power generation device of the embodiment of the application, the plurality of power generation assemblies 3 are stacked in the radial direction, saving the axial space, and the power generation device of the embodiment of the application has the advantages of compact structure and high power generation efficiency.

[0032] In some embodiments, the plurality of power generation assemblies 3 comprises a first assembly 31 and a second assembly 32, the first assembly 31 is arranged at the inner side of the magnetic isolation sleeve 4, and the second assembly 32 is arranged at the outer peripheral side of the magnetic isolation sleeve 4, the first assembly 31 comprises an inner rotor 311 and an inner stator 312, and the second assembly 32 comprises an outer rotor 321 and an outer stator 322, the inner stator 312 and the outer stator 322 are connected with the magnetic isolation sleeve 4, and the inner rotor 311 and the outer rotor 321 are connected with the rotating member 2.

[0033] Specifically, in the embodiment, the power generation assemblies 3 are two, the first assembly 31 is arranged at the inner side of the second assembly 32, the magnetic isolation sleeve 4 is one, and the magnetic isolation sleeve 4 is arranged between the first assembly 31 and the second assembly 32 to avoid the magnetic field of the inner rotor 311 affecting the magnetic field of the outer rotor 321, the inner rotor 311 and the outer rotor 321 are both connected with the rotating member 2, and the inner rotor 311 and the outer rotor 321 are coaxially arranged, so that the inner stator 312 only cuts the magnetic induction lines of the inner rotor 311, and the outer stator 322 only cuts the magnetic induction lines of the outer rotor 321.

[0034] In some embodiments, the rotating member 2 comprises a rotating shaft 21 and a flange 22, the rotating shaft 21 and the flange 22 are coaxially extended and independently rotatable relative to the rack 1, the flange 22 is connected with the outer rotor 321, and the rotating shaft 21 is connected with the inner rotor 311.

[0035] In some embodiments, the rotating member 2 comprises a rotating shaft 21 and a flange 22, the rotating shaft 21 and the flange 22 are coaxially extended and independently rotatable relative to the rack 1, the flange 22 is connected with the outer rotor 321, and the rotating shaft 21 is connected with the inner rotor 311.

[0036] The power generation device of the embodiment further comprises a first wind wheel (not shown in the figure) and a second wind wheel (not shown in the figure) arranged coaxially, the flange 22 is arranged at one end of the rack 1 in the length direction and is rotatable relative to the rack 1 to be connected with the second wind wheel, and one end of the rotating shaft 21 extends out of the other end of the rack 1 in the length direction to be connected with the first wind wheel.

[0037] Specifically, the front end of the rotating shaft 21 extends out of the rack 1 to connect the first wind wheel with the rotating shaft 21, and the inner rotor 311 of the first assembly 31 is driven to rotate through the rotating shaft 21, the flange 22 is arranged at the back side of the rack 1 to connect the second wind wheel with the flange 22, and the outer rotor 321 of the second assembly 32 is driven to rotate through the flange 22, since the inner rotor 311 and the outer rotor 321 are rotatable relative to each other, the rotating shaft 21 and the flange 22 are coaxially and independently rotatable, and thus the first wind wheel and the second wind wheel are coaxially and independently rotatable relative to each other.

[0038] Thus, the mechanical decoupling of the first wind wheel and the second wind wheel is realized by the coaxial independent rotation of the inner rotor 311 and the outer rotor 321, so that the independent control of the rotation speeds of the front and rear wind wheels of the double-wind-wheel fan is realized, and the total wind energy utilization rate of the power generation equipment of the embodiment of the application is improved.

[0039] In some embodiments, the magnetic isolation sleeve 4 is provided with a cooling flow channel, and the cooling flow channel is adapted to flow of a cooling medium to cool the inner stator 312 and the outer stator 322.

[0040] Specifically, during the operation of the power generation equipment of the embodiment of the application, the magnetic isolation sleeve 4 is arranged between the outer stator 322 and the inner stator 312 to isolate the magnetic fields of the first assembly 31 and the second assembly 32, the winding set in the outer stator 322 cuts the magnetic induction lines of the outer rotor 321 to generate a current, and the current generates heat in the winding set of the outer stator 322 through the current heat effect; the winding set in the inner stator 312 cuts the magnetic induction lines of the inner rotor 311 to generate a current, and the current generates heat in the winding set of the inner stator 312 through the current heat effect.

[0041] Thus, the inner stator 312 and the outer stator 322 are connected with the magnetic isolation sleeve 4, and the heat generated in the inner stator 312 and the outer stator 322 can be taken out by the cooling medium flowing in the cooling flow channel in the magnetic isolation sleeve 4, so as to avoid the heat accumulation in the inner stator 312 and the outer stator 322 to cause a fault.

[0042] In some embodiments, the frame 1 includes a ring-shaped baffle 11 and a cylindrical portion 12, the ring-shaped baffle 11 is arranged at one end of the cylindrical portion 12, the geometric axes of the ring-shaped baffle 11 and the cylindrical portion 12 coincide, the cylindrical portion 12 is provided with a ring-shaped groove, the ring-shaped groove is arranged between the inner wall and the outer wall of the cylindrical portion 12, and the magnetic isolation sleeve 4 is assembled in the ring-shaped groove.

[0043] Specifically, the ring-shaped baffle 11 is arranged at the front end of the frame 1, the thickness direction of the ring-shaped baffle 11 is the front-rear direction, the ring-shaped baffle 11 is closed and extended around the outer circumferential side of the rotating shaft 21, the cylindrical portion 12 is arranged at the rear end of the ring-shaped baffle 11, and the cylindrical portion 12 extends along the front-rear direction, the front end of the cylindrical portion 12 is connected with the ring-shaped baffle 11, the inner diameter of the front end of the cylindrical portion 12 is larger than the inner diameter of the ring-shaped baffle 11, and the outer diameter of the front end of the cylindrical portion 12 is smaller than the outer diameter of the ring-shaped baffle 11, so that the first assembly 31 is installed on the inner side of the cylindrical portion 12 and the rear side of the ring-shaped baffle 11, and the second assembly 32 is installed on the outer circumferential side of the cylindrical portion 12 and the rear side of the ring-shaped baffle 11.

[0044] The cylindrical portion 12 is a hollow structure, the cylindrical portion 12 is provided with a ring-shaped groove extending along the front-rear direction, the ring-shaped groove is arranged between the inner wall of the cylindrical portion 12 and the outer wall of the cylindrical portion 12, and the ring-shaped groove is closed and extended along the circumferential direction of the cylindrical portion 12, so that the magnetic isolation sleeve 4 can be assembled in the ring-shaped groove.

[0045] The cooling channel inside the magnetic shielding sleeve 4 passes through the annular baffle 11 and extends to the front end of the annular baffle 11. The inlet and outlet of the cooling channel are both located on the front side of the annular baffle 11.

[0046] Thus, the inner stator 312 is installed on the inner wall of the cylindrical part 12, and the outer stator 322 is installed on the outer wall of the cylindrical part 12, so that both the inner stator 312 and the outer stator 322 are located on the frame 1, and the inner stator 312 is connected to the magnetic shielding sleeve 4 through the inner wall of the cylindrical part 12, and the outer stator 322 is connected to the magnetic shielding sleeve 4 through the outer wall of the cylindrical part 12.

[0047] In some embodiments, the rotating shaft 21 is provided with a first bearing 211 and a second bearing 212. The first bearing 211 is assembled between the rotating shaft 21 and the annular baffle 11, and the second bearing 212 is assembled between the rotating shaft 21 and the reduced diameter section 13.

[0048] In some embodiments, the cylindrical portion 12 has a reduced diameter section 13 at one end away from the annular baffle 11, and the diameter of the reduced diameter section 13 gradually decreases in the direction away from the annular baffle 11.

[0049] In some embodiments, the power generation equipment further includes an outer rotor support 5, which is sleeved on the outer periphery of the magnetic shielding sleeve 4, and the outer rotor 321 and the outer stator 322 are disposed between the outer rotor support 5 and the magnetic shielding sleeve 4. The outer rotor 321 is rotatably sleeved on the outer periphery of the outer stator 322. The outer rotor 321 is connected to the outer rotor support 5, and the outer rotor support 5 is connected to the flange 22.

[0050] Specifically, the outer rotor support 5 is sleeved on the outer periphery of the second component 32. The outer rotor support 5 is a cylindrical structure. The outer rotor 321 is located on the inner wall of the outer rotor support 5. The rear end of the outer rotor support 5 is provided with a flange 22. The second wind turbine can drive the outer rotor support 5 together with the outer rotor 321 to rotate relative to the frame 1 through the flange 22, so that the outer rotor 321 rotates relative to the outer stator 322 to generate electricity.

[0051] In some embodiments, the outer rotor support 5 includes a first annular flange 51 and a second annular flange 52, which are rotatably mounted on the outer periphery of the reduced diameter section 13. The first annular flange 51 and the second annular flange 52 have a set interval in the length direction of the reduced diameter section 13 to support the outer rotor support 5.

[0052] Specifically, the rear end of the outer rotor support 5 is provided with a first annular flange 51 and a second annular flange 52, the first annular flange 51 is arranged at the front side of the second annular flange 52, and the first annular flange 51 and the second annular flange 52 both extend along the outer circumferential side of the frame 1, the inner edge of the first annular flange 51 and the outer wall of the reduced diameter section 13 are rotatably connected through a bearing, and the inner edge of the second annular flange 52 and the outer wall of the reduced diameter section 13 are rotatably connected through a bearing, so that the outer rotor support 5 can rotate relative to the frame 1.

[0053] Therefore, by arranging the first annular flange 51 and the second annular flange 52, the inner edge of the first annular flange 51 and the inner edge of the second annular flange 52 serve as two support points to improve the support stiffness of the outer rotor support 5 during the assembly of the outer rotor support 5 to the outer circumferential side of the frame 1, so that the outer rotor 321 has better coaxiality with the outer stator 322 when rotating relative to the outer stator 322.

[0054] In the description of the present application, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and therefore cannot be understood as indicating or implying that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application.

[0055] In addition, the terms "first" and "second" are only for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the technical features referred to. Therefore, the features defined with "first" and "second" can explicitly or implicitly include at least one of the features. In the description of the present application, the meaning of "a plurality of" is at least two, such as two, three, etc., unless otherwise specifically limited.

[0056] In the present application, unless otherwise specifically defined and limited, the terms "mounting", "connection", "connection", "fixing" and the like should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or it can be integrated; it can be mechanically connected, or it can be electrically connected or in communication with each other; it can be directly connected, or it can be indirectly connected through an intermediate medium; it can be the internal communication or interaction relationship of two elements, unless otherwise specifically limited. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0057] In the present application, unless specifically stated and limited otherwise, a first feature "on" or "under" a second feature can be directly in contact with the second feature, or indirectly in contact with the second feature through an intermediate medium. Also, a first feature "over", "above" and "on top of" a second feature can be directly above or obliquely above the second feature, or simply means that the first feature is horizontally higher than the second feature. A first feature "under", "below" and "underneath" a second feature can be directly below or obliquely below the second feature, or simply means that the first feature is horizontally lower than the second feature.

[0058] In the present application, the terms "one embodiment", "some embodiments", "an example", "a specific example", or "some examples" mean that a particular feature, structure, material, or characteristic being described is included in at least one embodiment or example of the present application. The illustrative appearances of the above-mentioned terms in various places in the specification are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics can be combined in any suitable manner in one or more embodiments or examples. Moreover, the terms "first", "second", "third", etc. are used herein merely as identifiers for different elements, regions, or layers, and are not intended to be taken literally, unless otherwise specified.

[0059] Although the above-mentioned embodiments have been shown and described, it is to be understood that these embodiments are exemplary only, and are not to be taken as limiting the scope of the present application, and that changes, modifications, substitutions and variations can be made to the above-mentioned embodiments by those skilled in the art without departing from the scope of the present application.

Claims

1. A power generation apparatus characterized by comprising: The application relates to a generator comprising: a frame and a plurality of rotating members rotatably arranged on the frame and coaxially independently rotatable; at least one magnetic isolation sleeve coaxially extending with the rotating members and arranged on the frame, the magnetic isolation sleeve being adapted to block the magnetic field between the inner cavity of the magnetic isolation sleeve and the outer periphery of the magnetic isolation sleeve; a plurality of power generation assemblies corresponding to the rotating members one by one, the power generation assemblies being arranged on the outer periphery of the rotating members in multiple layers, and the magnetic isolation sleeve being arranged between two adjacent power generation assemblies, the power generation assemblies comprising a stator and a rotor, the stator being arranged on the frame and the rotor being arranged on the rotating member, so that one of the stator and the rotor is rotatably arranged on the outer periphery of the other, the power generation assemblies comprising a first assembly and a second assembly, the first assembly being arranged on the inner side of the magnetic isolation sleeve and the second assembly being arranged on the outer periphery of the magnetic isolation sleeve, the first assembly comprising an inner rotor and an inner stator, and the second assembly comprising an outer rotor and an outer stator, the inner stator and the outer stator being arranged on the magnetic isolation sleeve, and the inner rotor and the outer rotor being arranged on the rotating member, the magnetic isolation sleeve being provided with a cooling flow channel adapted to allow the cooling medium to flow through to cool the inner stator and the outer stator; an outer rotor support arranged on the outer periphery of the magnetic isolation sleeve, the outer rotor and the outer stator being arranged between the outer rotor support and the magnetic isolation sleeve, the outer rotor being rotatably arranged on the outer periphery of the outer stator, the outer rotor being arranged on the outer rotor support, the outer rotor support being arranged on a flange, the outer rotor support comprising a first annular flange and a second annular flange, the first annular flange and the second annular flange being rotatably arranged on the outer periphery of the frame, and the first annular flange and the second annular flange supporting the outer rotor support; the frame comprising an annular baffle and a cylindrical portion, the annular baffle being arranged on one end of the cylindrical portion, and the geometric axis of the annular baffle and the cylindrical portion being coincident, the cylindrical portion being provided with an annular groove between the inner wall and the outer wall, the magnetic isolation sleeve being arranged in the annular groove, the one end of the cylindrical portion away from the annular baffle being provided with a reduced diameter section, the diameter of the reduced diameter section gradually decreasing in the direction away from the annular baffle, the first annular flange and the second annular flange being rotatably arranged on the outer periphery of the reduced diameter section, and the first annular flange and the second annular flange having a certain interval in the length direction of the reduced diameter section to support the outer rotor support.

2. The power plant of claim 1, wherein, the rotating member comprising a rotating shaft and a flange, the rotating shaft and the flange coaxially extending and independently rotatable relative to the frame, the flange being arranged on the outer rotor, and the rotating shaft being arranged on the inner rotor.

3. The power plant of claim 2, wherein, The first wind wheel and the second wind wheel are coaxially arranged, the flange is arranged at one end of the length direction of the frame and is rotatable relative to the frame, and is adapted to be connected with the second wind wheel.

4. The power plant of claim 3, wherein, The first bearing and the second bearing are arranged on the rotating shaft, the first bearing is arranged between the rotating shaft and the annular baffle, and the second bearing is arranged between the rotating shaft and the reduced diameter section.

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