CN114837907A - Engine room of wind generating set, engine room hoisting method and wind generating set - Google Patents

Abstract

The invention discloses a cabin of a wind generating set, a cabin hoisting method and the wind generating set. The dimension in the width direction of the nacelle (the horizontal direction perpendicular to the rotation axis of the impeller) is larger than the dimension in the length direction of the nacelle. At least one side of the two sides of the outer portion of the base of the engine room along the width direction is provided with an accommodating space, and at least one part of the wind generating set, such as a large-mass part of a transformation unit or a converter unit, can be placed in the accommodating space. The design of the cabin breaks through the traditional design concept, not only meets the requirement of the transformer unit of the wind turbine generator, but also limits the cantilever length of the bearing part of the cabin and the weight of the cabin, furthest maintains the structural integrity of the cabin, improves the bearing stability of the cabin, is convenient to transport and hoist, and is particularly suitable for large-scale units on land and sea.

Description

Engine room of wind generating set, engine room hoisting method and wind generating set

Technical Field

The invention belongs to the technical field of wind power generation, and particularly relates to a cabin of a wind generating set, a cabin hoisting method and the wind generating set.

Background

The engine room of the wind generating set generally comprises a main shafting, a gear box, a generating unit (the gear box and a generator) and peripheral auxiliary equipment (such as a lubricating system, a cooling system and the like), a converter and a transformer are arranged at the tower bottom, electric energy is transmitted from the engine room to the tower bottom through a power cable, and the electric energy is transmitted to a power grid through the converter and the transformer. With the increase of the unit capacity and the increase of the tower height, the price of the power cable is continuously increased. In order to control the cost, large wind generating sets gradually adopt a scheme of placing a transformer on the nacelle (the converter is also arranged in the nacelle). The size of the cabin of the large-scale unit originally has the problems of superelevation, superwidth, overweight and the like, if the transformer and the converter are directly placed in the cabin together, the size and the weight of the cabin can be continuously increased, and the transportation and the hoisting of the cabin face huge challenges.

In some existing solutions, the cabin is broken up into parts, and the parts are transported separately and then assembled at the site of hoisting. Such methods do solve the problem of transport difficulties. However, the efficiency is compromised because the field assembly conditions are somewhat different from the shop conditions. If the crane is assembled on the ground and then hung to the tower top, the problem of lifting cost caused by the increase of the weight of the cabin still exists. If the parts are hung on the top of the tower and then assembled, the assembly difficulty and speed become new problems.

There are also solutions in which additional cabins are arranged behind or under the sides of the conventional main cabin, which alleviates the problem to some extent. However, a reliable connection between the main cabin and the additional cabin is required, and problems related to structural strength are inevitably required. In addition, when hoisting, the crane needs at least three times to finish hoisting the engine room, and hoisting cost is increased.

Compared with some schemes, the scheme that the cabin is simply lengthened along the length direction and the transformer is placed behind the power generation unit is adopted by some current domestic complete machine manufacturers, the bearing capacity of the cabin needs to be greatly enhanced, and the weight of the cabin structure per se can be improved to a certain degree. In addition, the difficulty of transporting and hoisting the integrated nacelle is increased. This is not preferable because the cost of the cable is reduced and the cost is increased in other respects, which causes a problem that the effect of the cable is lost.

Disclosure of Invention

In view of this, the present invention provides a nacelle of a wind turbine generator system, which can meet the requirement that the nacelle of the large wind turbine generator system needs to carry large wind turbine generator system components such as a transformer and a converter, and simultaneously effectively control the cantilever length of the nacelle structure, the weight of the nacelle structure and the size of the nacelle, and the integrity of the nacelle structure is high.

The invention also aims to provide a hoisting method of the wind generating set cabin, which simplifies the field construction difficulty and reduces the hoisting times and total time consumption (the hoisting can be completed only by twice at most).

The third purpose of the invention is to provide a wind generating set, which solves the technical problems that a transformer must be accommodated in an offshore large wind generating set cabin, the hoisting cost is controlled and the like, and enables the wind generating set cabin to have high structural integrity, few extra connections and strong stability. Meanwhile, the embodiment of the invention is also suitable for large land units, in particular to units in regions with high difficulty in transportation and hoisting, such as plateaus and the like.

To achieve the above object, a first aspect provides a wind turbine generator system nacelle,

a first horizontal dimension of the nacelle is greater than a second horizontal dimension of the nacelle;

the first horizontal direction is perpendicular to the rotation axis of the impeller of the wind generating set, and the second horizontal direction is perpendicular to the first horizontal direction;

at least one side of the two sides of the base of the engine room along the first horizontal direction is provided with an accommodating space, and at least one component of the wind generating set can be placed in the accommodating space.

In a further technical solution there is provided,

the nacelle includes a nacelle cover enclosing the nacelle frame inside and connected to the nacelle frame and a nacelle frame. The parts of the wind generating set placed in the accommodating space are positioned outside the outer contour of the base.

In a further technical solution, at least one of the wind turbine generator system components placed in the accommodating space is a voltage transformation unit, and the voltage transformation unit is configured as a double winding or a triple winding.

In a further technical scheme, an isolation plate is arranged between the transformation unit and the base.

In a further aspect, at least one heat sink is disposed outside the nacelle, and the heat sink is coupled to the nacelle.

In a further technical scheme, the radiator is located outside the outer contour of the top end of the tower barrel of the wind driven generator and is located above or below the accommodating space.

In a further technical scheme, at least one detachable cabin cover body is arranged at two ends of the cabin along the first horizontal direction; or at least one movable nacelle cover is provided and connected to the nacelle by means of hinges or sliding rails.

In a further technical scheme, the wind power generation device further comprises at least one auxiliary cabin, and a power generation unit is arranged inside the auxiliary cabin. At least two first auxiliary attachment points are provided on the nacelle frame for attachment to the auxiliary nacelle.

In a further aspect, a plurality of second auxiliary connection points are provided on a nacelle cover of the auxiliary nacelle, and the nacelle cover of the auxiliary nacelle is connected to a nacelle frame of the nacelle through connection of the first auxiliary connection points and the second auxiliary connection points.

In a second aspect, a hoisting method for a wind generating set cabin is provided, which includes the following steps:

s1, detaching the detachable cabin cover of the cabin on the ground, putting the transformation unit into one of two ends of the cabin along the first horizontal direction, and fixing the transformation unit at a designated position;

s2, mounting a detachable cabin cover of the cabin, so that the voltage transformation unit is arranged in the accommodating space of the cabin;

and S3, hoisting the cabin to the top end of the tower of the wind generating set, and connecting the yaw system with the top end of the tower.

In a third aspect, a wind park is provided, comprising a wind park nacelle according to the first aspect of the invention, the nacelle being coupled to the foundation or to a yaw system of the wind park, the number of said connection points being at least two. The yaw system is coupled with the tower top end.

In a fourth aspect, a nacelle of a wind turbine generator system is provided, which comprises a nacelle cover and a nacelle frame, wherein the nacelle cover encloses the nacelle frame inside and is connected with the nacelle frame;

the interior of the nacelle frame is divided into a pedestal mounting space and at least one accommodation space provided at least one side portion in a width direction of the pedestal mounting space.

In a further technical scheme, a plurality of connection points are arranged on the cabin frame corresponding to the base installation space.

In a further aspect, the plurality of connection points includes: a base attachment point for attaching the base to the nacelle frame; a first auxiliary attachment point for attaching the nacelle to an auxiliary nacelle.

In a further technical scheme, an electromagnetic shielding isolation component is arranged between the base installation space and the accommodating space.

In a further technical solution, the frame structure corresponding to the receiving space is detachably connected to the frame structure corresponding to the base installation space.

The invention has the beneficial effects that: the wind generating set cabin is arranged and extended along the rotating axis which is transverse to the impeller, a side bearing space is created in the wind generating set cabin, the wind generating set cabin can bear large wind generating set components such as a voltage transformation unit, a converter and the like, the requirement for the arrangement of the voltage transformation unit of the wind generating set is met, meanwhile, the cantilever length of a bearing part of the cabin and the weight of the cabin are limited, the structural integrity of the cabin is kept to the maximum extent, the bearing stability of the wind generating set cabin is improved, the wind generating set cabin is convenient to transport and hoist, and the wind generating set cabin is particularly suitable for large land and offshore units.

Drawings

FIG. 1 is a first schematic view of a nacelle of a wind turbine generator system according to an embodiment of the invention;

FIG. 2 is a second schematic view of a nacelle of a wind turbine generator system according to an embodiment of the invention;

FIG. 3 is a top view of a nacelle of a wind turbine generator system according to an embodiment of the invention;

FIG. 4 is a rear view of a nacelle of a wind turbine generator system according to an embodiment of the invention;

FIG. 5 is a partial schematic view of a nacelle of a wind turbine generator system according to an embodiment of the invention;

FIG. 6 is a schematic view of a connection of a radiator of a nacelle of a wind turbine generator system according to an embodiment of the invention;

FIG. 7 is a top comparison view of different drive train type nacelles according to an embodiment of the present invention;

FIG. 8 is an elevation view of an auxiliary nacelle according to an embodiment of the invention;

fig. 9 is a flow chart of hoisting a nacelle of a wind turbine generator system according to an embodiment of the invention.

The reference numbers indicate:

1. nacelle 101, nacelle frame 102, nacelle cover 102.1, detachable nacelle cover 2, base 3, impeller rotation axis 4, accommodation space 5, transformer 6, converter 7, first horizontal direction 8, second horizontal direction 9, nacelle to base connection point 10, base outer contour 11, partition board 12, manhole 13, radiator 1301, radiator support 1302, radiator fin 14, tower 15, first auxiliary connection point 16, auxiliary nacelle 1601, nacelle cover for auxiliary nacelle 1602, auxiliary nacelle structure 1603, second auxiliary connection point 17, power generating unit.

It is noted that the above-described figures are intended to illustrate the features of the invention and are not intended to show any actual structure or to reflect the dimensional, relative proportions and other details of the various components. In order to more clearly illustrate the principles of the present invention and to avoid obscuring the same in unnecessary detail, the examples in the drawings have been simplified. These illustrations do not present any inconvenience to a person skilled in the relevant art in understanding the present invention, and an actual wind turbine nacelle may comprise further components.

Detailed Description

In order to make the purpose and technical solution of the embodiments of the present invention clearer, the following describes the embodiments of the present invention completely with reference to the related drawings of the embodiments of the present invention. This patent describes only a few embodiments and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

As shown in fig. 1 and 2, the nacelle 1 encloses the components of the wind turbine generator system, which in some embodiments may include a bedplate 2, bearing blocks, main bearings, main shafts, etc. The nacelle 1 is able to limit its internal volume.

In some embodiments, the nacelle 1 comprises a nacelle cover 102 and a nacelle frame 101, the nacelle cover 102 enclosing the nacelle frame 101 inside and being connected to the nacelle frame 101 at a plurality of connection points. The nacelle frame 101 may be a frame structure composed of beams and columns, or a structure composed of columns and supporting plates.

As shown in fig. 3, the nacelle 1 is coupled to the base 2 of the wind park by means of beams or support plates in the nacelle frame 101, and there may be a plurality of connection points 9 of the nacelle to the base 2.

The nacelle 1 has two dimensions, a first horizontal dimension 7 and a second horizontal dimension 8. The first horizontal direction is perpendicular to the rotation axis of the impeller of the wind generating set, and the second horizontal direction is perpendicular to the first horizontal direction.

The dimension of the nacelle 1 in the first horizontal direction 7 is larger than the dimension of the nacelle in the second horizontal direction 8. I.e. the nacelle width dimension in the general definition is larger than the nacelle length dimension.

The base is provided with accommodation spaces 4 along both sides of the first horizontal direction (i.e., both sides in the width direction of the nacelle in general definition).

At least one wind turbine component, in some embodiments a transformer 5 or a converter 6, or both, is placed in the receiving space 4. The load of the large mass components like the transformer 5 or the converter 6 is transferred to the bedplate 2 and the yaw system via the nacelle frame structure 101.

The characteristics and the novelty of the technical scheme are as follows: conventional wind turbine generator system nacelles all have a first horizontal direction 7 with a dimension smaller than a second horizontal direction 8, i.e. the nacelle length dimension is usually defined as being larger than the nacelle width dimension. If a transformer weighing more than ten tons is to be added to a conventional nacelle, it is common practice to hang the nacelle on the side or behind or below the conventional nacelle.

The technical scheme provided by the embodiment of the invention breaks through the conventional thought, and on the contrary, the size of the cabin 1 in the first horizontal direction 7 is larger than that of the cabin 1 in the second horizontal direction 8, namely the size of the cabin in the width direction in the common definition is larger than that of the cabin in the length direction. The accommodation spaces 4 are created on both sides of the base in the first horizontal direction, without additional side-hung nacelles, the entire nacelle having a better integrity.

The technical scheme has the advantages that: the transformer 5 and/or the converter 6 with large mass and other parts are respectively placed in the accommodating space 4 created by the base along the two sides of the first horizontal direction, the requirement for arranging the transformation unit of the wind generating set on the base is met through a reasonable bearing structure, meanwhile, the cantilever length of the bearing part of the engine room 1 is avoided being simply increased, the weight increase of the engine room 1 is effectively limited, the structural integrity of the engine room 1 is kept to the maximum degree, the bearing stability of the engine room is improved, the transportation and the hoisting are convenient, and the scheme is particularly suitable for large-scale wind generating sets on land and at sea.

As shown in fig. 3 and 4, the size of the first horizontal direction 7 of the nacelle 1 is larger than the size of the second horizontal direction 8 of the nacelle 1, so that the wind turbine components, such as the transformer 5 and/or the converter 6, carried in the accommodating space 4 are positioned outside the outer contour 10 of the base 2, and do not occupy the installation space of the base 2 itself, and meanwhile, the physical interference with the yaw drive of the yaw system is avoided. Secondly, in consideration of electrical safety distance, maintenance space and other factors, in some embodiments, a distance needs to be reserved between the transformer 5 or the current transformer 6 and the outer contour 10 of the base 2.

At least two connection points 9 are provided for the nacelle 1 and the base 2, in some embodiments, in order to ensure the stability of the connection and more efficient load transmission, when the nacelle 1 is connected with the yawing system or the base 2 through the nacelle frame 101, four connection points 9 are provided, two of the four connection points are distributed on two sides of the rotation axis 3 of the impeller in a group, and the connection points 9 are near the lower part of the bearing seat, and generally, the base 2 has higher structural strength near the lower part of the bearing seat, so that better load bearing capacity is provided.

The configuration of the transformer 5 carried in the accommodation space 4 is double-winding or triple-winding, and in some embodiments, the configuration of the double-winding transformer 5 requires the addition of an additional auxiliary transformer in the nacelle 1. The function of the auxiliary transformer is to reduce the output voltage of the converter 6 to a general voltage level, such as 400V or 220V, for the control cabinet and the auxiliary actuators. In some embodiments, the transformer 5 may be a three-winding configuration, no additional auxiliary transformer 5 is required in the cabin, and the transformer 5 may directly provide a general power voltage, such as 400V or 220V, for the control cabinet and the auxiliary actuators.

As shown in fig. 5, a separation plate 11 is disposed between the transformer 5 and the yawing system and the base 1 in consideration of electrical safety distance, electromagnetic shielding and other requirements, and in some embodiments, the separation plate 11 may be a metal plate with a certain thickness. The isolation plate 11 is provided with a manhole 12 for allowing maintenance personnel to enter or leave the transformer 5 placing space.

As shown in fig. 6, the nacelle 1 is provided externally with at least one radiator 13, and in some embodiments, two radiators 13 may be provided, one on each side of the impeller rotation axis 3. Both radiators 13 are coupled to the nacelle 1, the radiators 13 being constituted by a radiator support 1301 and radiator fins 1302, the radiator support 1301 being coupled to the nacelle frame 101 or the nacelle cover 102. The radiator 13 is located outside the outer contour of the top end of the tower 14 of the wind driven generator, and avoids the blocking of the tower 14 to the incoming natural wind. And, the radiator 13 is located above or below the bearing space 4 of side, the air inlet channel and air outlet channel of this kind of scheme have been saved, need not set up unnecessary passageway in the bearing space 4 of side again, and the natural wind comes and flows and directly passes the radiator 13, accomplishes the heat exchange.

As shown in fig. 1 and 2, both ends, i.e. the end surfaces on the left and right sides, of the nacelle 1 in the first horizontal direction 7 are provided with at least one detachable nacelle cover 102.1. In some embodiments, the end surfaces of both sides are provided with detachable nacelle covers 102.1, and the nacelle covers 102.1 may also be movable, and the opening and closing are completed by using hinges or sliding rails. The size of the detachable nacelle cover 102.1 is larger than the largest size of the transformer 5 and the converter 6. In this way, after the detachable nacelle cover 102.1 is removed, the transformer 5 or the converter 6 can be brought into the nacelle 1.

In the embodiment of the present invention, for some types of drive train wind turbine generators, such as medium speed (also called hybrid or semi-direct drive) and doubly-fed wind turbine generators, which include a power generating unit 17, i.e. a gearbox and a generator, the two components must be placed in a sealed environment, and the gearbox and the generator are also placed in a conventional nacelle. As shown in the right drawing of fig. 7, the wind power plant of medium-speed type and double-fed type, etc. in some embodiments, needs to comprise at least one auxiliary nacelle 16, and the auxiliary nacelle 16 is internally provided with a power generation unit 17. If the wind park is of the direct drive type, as shown in the left drawing of fig. 7, the generator is already located between the nacelle and the impeller, so that there is no need to add an auxiliary nacelle 16 behind the nacelle 1.

For a wind park of the type shown in the right drawing of fig. 7, the auxiliary nacelle 16 itself is hardly loaded and therefore does not need to be provided with a nacelle frame 101 like the nacelle 1. At least two second auxiliary attachment points 1603 (shown in fig. 8) are provided on a nacelle cover 1601 of the auxiliary nacelle 16. By the connection of the first auxiliary connection point 15 to the second auxiliary connection point 1603, the nacelle cover 1601 of the auxiliary nacelle is fixedly connected to the nacelle frame structure 101 of the nacelle 1. As shown in fig. 4, at least two first auxiliary attachment points 15, in some embodiments at least four, are provided on the nacelle frame 101 inside the nacelle 1, and two of these first auxiliary attachment points 15 are distributed on both sides of the impeller rotation axis 3, one near the top end and one near the bottom end of the nacelle 1 on each side. As shown in fig. 8, the nacelle cover 1601 of the auxiliary nacelle 16 also needs to be fixedly connected with the housing (gearbox or generator) of the power generation unit 17 through the auxiliary nacelle structure 1602, so as to increase the supporting rigidity of the nacelle cover 1601 of the entire auxiliary nacelle 16 and reduce the deformation after loading. The power generating unit 17 in the auxiliary nacelle 16 is connected to the bedplate 2, and the load generated by the gravity of the power generating unit 17 is transmitted from the bedplate 2 to the yaw system and the tower 14.

It should be noted that the total weight of the large-scale wind turbine generator, whether it is an offshore or land generator, is increasing and is generally not less than sixty tons. Even if the conventional engine room is used, the power generation unit and the conventional engine room are transported and hoisted together with high difficulty, and the conventional method is that the power generation unit and the conventional engine room are transported and hoisted respectively. The auxiliary nacelle 16 of the present embodiment does not actually increase the cost of transportation and lifting as compared to conventional nacelles.

Referring to fig. 8, the working method for hoisting the nacelle of the wind turbine generator system includes the following steps:

s1, the detachable nacelle cover 102.1 of the nacelle 1 is removed from the ground, and the transformer 5 is placed from one of the two ends of the nacelle 1 in the first horizontal direction 7 by using a trolley (the transformer 5 is placed on the trolley by a truck crane). The transformer 5 is conveyed to a designated installation position, the jack is utilized to convey the transformer 5 to the installation base 2 and fix the transformer, and the transport trolley is withdrawn;

s2, placing the converter 6 from the other end of the two ends of the cabin 1 which is transverse to the rotation axis 3 of the impeller into a transport trolley (the converter 6 is placed on the transport trolley by a truck crane), conveying the converter 6 to a specified installation position, conveying the converter to an installation base by using a jack, fixing, and withdrawing the transport trolley;

s3, mounting the detachable nacelle cover 102.1 of the nacelle 1, so that the transformer 5 and the converter 6 are arranged in the accommodating space 4 of the nacelle;

s4, removing the transportation cover plate or cover cloth arranged along the impeller rotation axis 3 direction of the nacelle 1 and the auxiliary nacelle 16 (the transportation cover plate or cover cloth is used for providing certain sealing and shielding for the main shaft flange end 17 and the base 2 and the power generation unit connecting end);

s5, hoisting the engine room 1 to the top end of the tower 14 of the wind generating set, and connecting the yaw system with the top end of the tower 14;

and S6, hoisting the auxiliary nacelle 16 to the top end of the tower 14 of the wind generating set, locating at the position behind the nacelle 1, butting the first auxiliary connection point 15 with a second auxiliary connection point 1603 on a nacelle cover 1601 of the auxiliary nacelle 16, connecting the power generation unit 17 with the base 2, and completing the connection between the auxiliary nacelle 16 and the nacelle 1.

In the description of the present invention, it should be noted that the terms "upper, lower, left, right, front, rear, inner, outer and both sides" and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation and be operated, and thus, should not be construed as limiting the present invention. Furthermore, the terms first, second, or third are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

The terms "mounted, connected, coupled and coupled" in the present application are to be construed broadly and include, for example: can be fixedly connected, detachably connected or integrally connected; they may be mechanically, electrically, or directly connected, or indirectly connected through intervening media, or may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

While the invention has been described with reference to a preferred embodiment, various modifications may be made and equivalents may be substituted for elements thereof without departing from the scope of the invention. In particular, the technical features mentioned in the embodiments can be combined in any way as long as there is no structural conflict. It is intended that the invention not be limited to the particular embodiments disclosed, but that the invention will include all embodiments falling within the scope of the appended claims.

Claims (12)

1. A wind generating set cabin is characterized in that:

a first horizontal dimension of the nacelle is greater than a second horizontal dimension of the nacelle;

the first horizontal direction is perpendicular to the rotation axis of the impeller of the wind generating set, and the second horizontal direction is perpendicular to the first horizontal direction;

at least one side of the two sides of the base of the engine room along the first horizontal direction is provided with an accommodating space, and at least one component of the wind generating set can be placed in the accommodating space.

2. A nacelle for a wind turbine according to claim 1, wherein: the nacelle comprises a nacelle cover and a nacelle frame, wherein the nacelle cover encloses the nacelle frame inside and is connected with the nacelle frame;

the parts of the wind generating set placed in the accommodating space are positioned outside the outer contour of the base.

3. A nacelle for a wind turbine according to claim 1, wherein: at least one wind generating set component placed in the accommodating space is a transformation unit, and the transformation unit is configured into double windings or triple windings.

4. A nacelle for a wind turbine according to claim 3, wherein: an isolation plate is arranged between the transformation unit and the base.

5. A nacelle for a wind turbine according to claim 1, wherein:

at least one radiator is arranged outside the nacelle and coupled with the nacelle.

6. A nacelle of a wind turbine according to claim 5, wherein: the radiator is located outside the outer contour of the top end of the tower barrel of the wind generating set and located above or below the accommodating space.

7. The nacelle of a wind turbine according to claim 1, wherein: at least one detachable cabin cover is arranged at two ends of the cabin along the first horizontal direction; or at least one movable nacelle cover is provided and connected to the nacelle by means of hinges or sliding rails.

8. A nacelle for a wind turbine according to claim 2, wherein: the power generation device also comprises at least one auxiliary cabin, wherein a power generation unit is arranged in the auxiliary cabin;

at least two first auxiliary attachment points are provided on the nacelle frame for attachment to the auxiliary nacelle.

9. A nacelle for a wind turbine according to claim 8, wherein:

the cabin cover of the auxiliary cabin is provided with a plurality of second auxiliary connecting points, and the cabin cover of the auxiliary cabin is connected with the cabin frame of the cabin through the connection of the first auxiliary connecting points and the second auxiliary connecting points.

10. A method for hoisting a nacelle of a wind generating set, the method being based on a nacelle of a wind generating set according to any of claims 1 to 9, the method comprising the steps of:

s1, detaching the detachable cabin cover of the cabin on the ground, putting the transformation unit into one of two ends of the cabin along the first horizontal direction, and fixing the transformation unit at a designated position;

s2, mounting a detachable cabin cover of the cabin, so that the voltage transformation unit is arranged in the accommodating space of the cabin;

and S3, hoisting the engine room to the top end of the tower of the wind generating set, and connecting the yaw system with the top end of the tower.

11. A wind park according to any of claims 1-10, wherein the wind park comprises a nacelle of a wind park; the engine room is connected with the base or a yaw system of the wind generating set, and at least two connecting points are provided; the yaw system is coupled to the tower top end.

12. A wind generating set's cabin, characterized by includes:

a nacelle cover and a nacelle frame, the nacelle cover enclosing the nacelle frame inside and being connected with the nacelle frame;

the interior of the nacelle frame is divided into a pedestal mounting space and at least one accommodation space provided at least one side portion in a width direction of the pedestal mounting space.

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