WO2012072375A1

WO2012072375A1 - Electrical enclosure of a wind turbine, and method for producing such an electrical enclosure

Info

Publication number: WO2012072375A1
Application number: PCT/EP2011/069526
Authority: WO
Inventors: Fabio Bertolotti; Frank Brod
Original assignee: Ssb Wind Systems Gmbh & Co. Kg
Priority date: 2010-11-30
Filing date: 2011-11-07
Publication date: 2012-06-07
Also published as: CN202564802U; CN102480105A; DE102010060912A1

Abstract

The invention relates to an electrical enclosure of a wind turbine, comprising modularly designed mounting panels in the form of a base panel (1) and multiple lateral walls (2.1, 2.2, 2.3, 2.4, 2.5). An enclosure body (3) which is formed by the mounting panels and which delimits an interior has a circumferential wall made from the lateral walls (2.1, 2.2, 2.3, 2.4, 2.5). Electrical devices lie on the mounting panel faces that are directed inwards, and a hood (4) forms a casing of the wall of the enclosure body (3).

Description

Switch cabinet of a wind turbine and method for producing such a cabinet

description

The invention relates to a control cabinet of a wind turbine comprising modular mounting plates in the form of a bottom plate and a plurality of side walls, wherein formed by the mounting plates, an interior limiting cabinet body has a circumferential, formed from the side walls and the inwardly facing sides of the mounting plates electrical devices are arranged. Furthermore, the invention relates to a method for producing such a cabinet.

A control cabinet is used in a wind turbine, for example, for receiving electrical components of one or more Blattverstelleinrichtungen that for the adjustment of one or more rotor blades of

Wind turbine serve. As a rule, the control cabinet also includes emergency power supplies equipped with energy storage devices which maintain the power supply of the blade adjustment devices in the event of a power failure or in the event of a power failure. Thereby, e.g. several control cabinet segments combined to form a radially centrally located in the rotor hub cabinet, which is formed by a container whose interior is divided by partitions into several areas, each of which form the box-shaped control cabinet segments, on the side walls, directed inward, the electrical

Components and their brackets are arranged. Usually, a cover of the cabinet takes place through a lid, the interior of which against the ingress of water, impurities of any kind or Foreign bodies protects. The lid is removable, so that maintenance and

Repair work can be done. Such cabinets are subject to extreme mechanical and climatic influences when used in wind turbines, which is why special demands are placed on their construction and air conditioning is required. These influences are noticeable especially in the arrangement in the rotating part of the wind turbine. Here, due to the centrifugal force, there is a risk that components, circuits or devices will loosen and cause damage to adjacent equipment or components, which can lead to malfunction or complete failure of the wind turbine. In addition, it was found that reinforced due to the specific conditions of use

Stability problems are recorded. The cabinets are very compact because of the small space available equipped with electrical facilities that are located both on the side walls and on the bottom plate. So far, the production of such a cabinet in such a way that initially an open box is assembled with a bottom plate and side walls and then the placement of the interior is done with the necessary electrical equipment.

Finally, the control cabinet is closed by the lid. This results in the difficulty that due to the small amount of space within the cabinet, the installation of the various facilities is considerably more difficult. In addition, there is a not to be underestimated

Risk of injury to the fitters. In addition, repair work is associated with increased effort and risk. An automation of the assembly is almost impossible in the known designs.

From DE 3614725 AI a Kabelverzweigerschrank is known as a control cabinet, the Kabelverzweigergehäuse is designed as a whole hood. This hood is essentially in one piece of a thin-walled material manufactured and has a flap through which any required assembly or repairs can be done. Partitions are also arranged inside the hood. The hood is placed with its open bottom on a pedestal. On the hood inside and on the partitions can

Mounting devices are provided.

In addition, DE 19711980 A1 discloses a stationary housing of a control cabinet with wall elements made of plastic. In this

Suggested solution, the individual wall elements are manufactured separately and then positively connected with each other. Through a base plate and an existing lid thus creates an all-around, in itself

closed box. The edges of the front part and the back part have joints and are designed according to the labyrinth principle or the tongue and groove principle for an overlapping mounting.

The known control cabinets each have a single outer wall, which is formed either by individual wall elements or by the hood itself. A sufficient stability, especially for use in the rotating part of the rotor hub of a wind turbine, but can not be achieved.

The invention is based on the object to provide a control cabinet, which is particularly suitable for use in the rotating part of a wind turbine due to its improved mechanical stability. In addition, a manufacturing method for such a cabinet must be specified.

This object is achieved by a switchgear cabinet according to claim 1 and by a method according to claim 26. Preferred embodiments of the invention are given in the dependent claims. The inventive control cabinet of a wind turbine comprises modular mounting plates in the form of a bottom plate and a plurality of side walls, wherein formed by the mounting plates, an interior limiting cabinet body has a circumferential, formed from the side walls and electrical devices are arranged on the inwardly facing sides of the mounting plates , In this case, a hood forms a shell of the peripheral wall of the cabinet body.

The control cabinet according to the invention is modular and mechanically stable. Furthermore, the control cabinet according to the invention can be assembled in a particularly simple and in a short time, that is equipped with the electrical equipment and preferably also with brackets and / or fastening devices for these devices. The mounting plates (the side walls and the bottom plate) can be manufactured separately and e.g. be fitted as individual parts with the electrical equipment. Only then does the assembly of the mounting plates to the cabinet body. This kind of

Manufacturing has the advantage that each of the assembled mounting plates can be tested for their functionality before assembly of the cabinet body. In addition, the control cabinet according to the invention can be manufactured automatically. The cabinet body formed by the mounting plates is finally inserted into the hood, so that a very stable

Cabinet construction is created, which is also able to cope with the high mechanical loads in the wind turbine. In particular, the control cabinet can be arranged in the rotor or in the rotor hub or in the stationary part of the wind turbine. The hood advantageously forms a sandwich-like casing of the cabinet body

The electrical devices are or include, for example, electrical circuits and / or electrical components and / or electrical devices. The expression "Electric" also includes the term "electronic". Thus, the term "electrical" may be replaced by the term "electrically and / or electronically" in particular. Furthermore, on the inward sides of the

Mounting plates preferably arranged the brackets and / or fastening devices for the electrical equipment. The electrical devices and / or the holders and / or fastening devices and / or other components arranged in the control cabinet are referred to in particular as "internals".

The control cabinet comprises an interior, which in particular comprises the interior of the cabinet body or is formed by this. The expression "on the inwardly facing sides of the mounting plates" means in particular that the electrical devices and / or the brackets and / or the

Fastening devices are arranged on the interior of the cabinet body facing sides of the mounting plates. Thus, the electrical devices and / or the brackets and / or the

Fastening devices arranged in particular in the interior of the cabinet body. Preferably, the electrical devices and / or the

Mounts and / or fasteners attached to the mounting plates.

The control cabinet can form or include a control cabinet. Thus, the term "control cabinet" can be replaced in particular by the term "control or control cabinet".

According to one embodiment of the invention, the cabinet body is inserted into the hood and in particular secured therein, wherein the attachment of the

Cabinet body in the hood is preferably solvable. Preferably, the cabinet body is attached to the hood. The introduction of the cabinet body in the Hood can be done eg by inserting or inserting. This

Mounting procedure simplifies the assembly of the control cabinet.

In particular, the insertion can be implemented in a simple manner by, for example, in the hood guide contours, e.g. in the form of

Guide rails, are provided, which correspond with

Sliding counter-contour contours on the outer peripheral surface of the cabinet body slidably.

For mounting the cabinet body in the hood is also proposed that the hood is firmly connected to the bottom plate of the cabinet body. Additionally or alternatively, the hood is preferred with the

Side walls, in particular with the bottom plate remote from the end portions of the side walls firmly connected. The connection between the hood and the cabinet body is preferably detachable. Furthermore, the connection between the hood and the cabinet body may be formed by a screw connection and / or riveting. Preferably, a plurality of screw and / or rivet connections are provided along the hood circumference, so that the fixation of the hood on the cabinet body can be improved.

According to one embodiment of the invention, the mounting plates

prefabricated mounting plates. It is under "ready-made"

Mounting plates to understand that the mounting plates already with the

provided and / or equipped electrical facilities that are required in particular for the operation of the wind turbine. Preferred are the

assembled mounting plates also with the brackets and / or

Fastening devices provided and / or equipped. The assembly of the mounting plates takes place in particular before the assembly of the mounting plates to the cabinet body. Preferably, the mounting plates are or are flat with the electrical devices and / or with the brackets and / or Fasteners fitted. According to one embodiment of the invention, the prefabricated mounting plates before assembly of the

Cabinet body tested. In particular, the electrical

Devices of the assembled mounting plates checked for their functionality. Since the mounting plates are not yet assembled to the cabinet body, a defective component can be easily replaced.

A preferred object of the present invention is to improve the stability of the

Overall, to improve control cabinet. Therefore, another proposal is that the side walls have at least one reinforcement in the form of a double-walled design (double wall). These are the

Sidewalls preferably double-walled or at least partially

double-walled. This double-walled design makes it possible to achieve a very high stability of the side walls with a relatively low cost of materials. In addition, if lightweight construction materials are used for the side walls, in addition to a higher stability compared to known solutions, a significant weight saving can be achieved. Overall, this leads to a more economical operation of the entire wind turbine and also due to the higher stability also to fewer failures and thus to less

Repairs.

The hood preferably has a circumferential hood wall. The

Hood wall preferably limits a hood interior, in particular, the cabinet body is or is introduced. Advantageously, the hood and / or the hood wall forms the outer wall of the cabinet. Preferably, the inner peripheral contour of the hood wall follows the

Outer circumference contour of the circumferential wall of the cabinet body, which is also referred to as cabinet body wall. In particular, the Inner peripheral contour of the hood wall and / or the outer peripheral contour of the cabinet body wall angular, preferably pentagonal. The outer peripheral contour of the hood wall preferably follows the inner peripheral contour of

Hood wall. In particular, the outer peripheral contour of the hood wall is angular, preferably pentagonal.

With regard to their scope, the control cabinet and / or the cabinet body are preferably made polygonal. A polygonal periphery of the cabinet body is preferably realized in that the bottom plate is polygonal and the number of side walls preferably corresponds to the number of corners. If the circumference of the cabinet body is e.g. formed quadrangular, it is preferred that the bottom plate is formed square, wherein the number of side walls is preferably four. Preferably, the scope of the

Cabinet body but pentagonal shaped, so preferably the

Bottom plate is pentagonal, wherein the number of side walls is preferably five.

The hood is preferably provided on its end face facing the bottom plate with an insertion opening, through which the cabinet body can be introduced into the hood. The insertion opening is preferred by the

Hood wall limited. According to one embodiment of the invention, the hood on its end facing away from the bottom plate at least one

Access opening, which is preferably limited by the hood wall.

Preferably, the hood has on its end face facing away from the bottom plate on a plurality of access openings, which are defined in particular by the hood wall and by one or more braces, which are advantageously arranged in the region of the bottom plate facing away from the front side of the hood. The one or more struts advantageously extend between the insides of the hood wall so that the one or more Struts are preferably arranged in the hood interior. Preferably, the hood includes the one or more braces. In particular, the one or more struts are fixedly connected to the hood and / or with the hood wall. The one or more struts stabilize in particular the hood. Thus, the hood can be performed on the one hand in a lightweight construction and on the other hand have sufficient stability. Through the access openings, it is also possible to make the interior and / or the internals of the cabinet body accessible and / or to be able to intervene, for example, for maintenance or repair directly into the interior of the cabinet body.

A further stabilization of the hood is achieved according to a development of the invention in that in one or more corners of the

Hood wall one reinforcing section, e.g. in the form of a corner support, is arranged. In the or the corners are in particular inner corners of the hood wall, so that the or the reinforcing portions are preferably arranged in the hood interior. Preferably, the hood comprises the reinforcing section or sections. In particular, the reinforcing portions or are firmly connected to the hood and / or with the hood wall. Preferably, the or the reinforcing portions are fixedly connected to the one or more struts. Thus, a total of a kind

Truss structure with all its advantages created. The or the

Reinforcement sections advantageously each form a corner support of the hood.

The one or more struts and / or the one or more

Reinforcement sections can be releasably secured to the hood according to an embodiment of the invention. In addition, another suggestion is that the one or more bracings and / or the

Reinforcement sections are made integral with the hood. Here can The hood can be made in one piece, which can bring cost savings, since additional installation effort is eliminated.

On the outside of the hood, one or more attachments are preferably attached. For example, the attachment or attachments may include one or more carriers and / or one or more accumulators and / or one or more electrical connectors, e.g. in the form of sockets. The accumulator (s) are advantageously carried by the carrier (s). Furthermore, the one or more electrical connectors are preferably arranged on the carrier or carriers. Electrical lines are preferably laid on the insides of the mounting plates, in particular at their edges and advantageously in cable guides.

To provide protection in the interior of the cabinet body

To allow electrical equipment and / or other installations, the cabinet preferably has a lid, which is preferably designed as a removable lid. By means of the lid, in particular the interior of the cabinet body and preferably also the at least one or more access openings of the hood are covered and / or closed. The cover is advantageously designed complementary to the geometry of the bottom plate facing away from the front side of the hood, so that it can be placed accurately on the hood and this particular hermetically seals. Thus, penetration of impurities and moisture into the interior of the cabinet body can be effectively prevented. The lid preferably forms a mounting plate or another of the mounting plates.

The bottom plate may itself be a carrier of the electrical equipment or a part thereof. According to a broader proposal, the

Base plate an additional deposit, which is preferred for a packaging is executed and / or equipped with the electrical equipment or a part thereof or can be. In particular, the insert is arranged on the side facing the interior of the bottom plate. The insert preferably forms an additional mounting plate or an additional of the

Mounting plates. Advantageously, the deposit is attributed to the bottom plate. According to another approach, a base plate is provided on the side facing away from the interior of the bottom plate, which is in particular firmly connected to the cabinet body or is. The base plate preferably forms an additional mounting plate or an additional one of the mounting plates.

The control cabinet and / or the cabinet body are preferably designed box-shaped. Preferably, the side walls extend vertically or in the

Essentially perpendicular to the bottom plate. Advantageously, only two different sizes of side plates are used. As a result, a variant reduction can be achieved.

Advantageously, the mounting plates are or are firmly connected. In particular, the side walls are or are firmly connected to the bottom plate. The connection of the mounting plates with each other and / or the connection of the bottom plate with the side walls can be detachable or insoluble. Preferably, the side walls are connected to the assembly of the cabinet body fixed to the bottom plate. After an erection of the side walls these are preferably firmly connected to the hood, advantageously on the inside of the hood wall. Preferably, the side walls are stabilized thereby.

According to one embodiment of the invention, the one or more of

Mounting plates, preferably the bottom plate and the side walls, at their edges joints. In particular, the side walls are or will be at the Joint firmly connected to the bottom plate. This connection of

Base plate with the side walls can be solvable or insoluble. Preferably, the side walls for assembling the cabinet body to the

Joint firmly connected to the bottom plate. Preferably, the lie

Fits to fit each other, and / or the joints are brought to the assembly of the cabinet body accurately with each other to the plant. Thus, an exact installation is possible. The side walls are with the

Base plate preferably fixedly connected or connectable to the adjoining joints. For example, one or more holes for fastening means at the connection points between the bottom plate and the side walls, in particular in the adjoining joints, or be provided. The fasteners can then in the

Holes are introduced and connect the side walls firmly to the bottom plate. The attachment means include e.g. Bolts and / or rivets.

According to one embodiment of the invention, the side walls are screwed or riveted to the bottom plate at the adjacent joints. Additionally or alternatively, the side walls may be connected to the bottom plate at the joints also by means of one or more tongue and groove connections and / or by means of another joining manner or be.

According to one embodiment of the invention, the bottom plate and the side walls at their edges on folding edges. In particular, the side walls are connected at the folded edges fixed to the bottom plate. Advantageously, the side walls and the bottom plate are made of one piece, equipped in one or more areas with the folding edges and connected to each other at these fold edges. This results in a foldable material unit, which is formed in particular by the bottom plate and the side walls. For the completion and / or assembly of the cabinet body takes place after the assembly of the mounting plates forming the side walls relative to the bottom plate. The forming takes place in particular in the form of a bending around the folded edges. This mounting method is very effective and time-saving.

According to one embodiment of the invention, the bottom plate at its outer edge one or more angled to its plate plane

Edge sections as one or more joints or as one or more of the joints on. Advantageously, the one or more edge portions are each angled at 45 ° to the plate plane of the bottom plate. Preferably, the side walls to the one or more angled edge portions of the bottom plate corresponding connecting portions as joints or as more of the joints, so after establishing the connection between the

Bottom plate and the side walls of the edge portions of the bottom plate and the connecting portions are brought into contact with each other. As a result, a particularly simple connection between the side walls and the bottom plate can be realized. In addition, this technical measure allows automated assembly of the mounting plates and facilitates accessibility in the event of disassembly. Each of the connecting portions is preferably angled to the respective side plate plane. The one or the angled

Edge sections are or are in particular firmly connected to the, preferably angled, connecting sections of the side walls,

for example by screwing and / or riveting.

A particular embodiment of the invention is that the

Connecting portions of the side walls overlapping to the or

corresponding edge portions of the bottom plate are executed. The overlap, for example, an additional splash guard allows preventing the ingress of moisture into the interior of the cabinet. In order to implement a further stiffening of the entire control cabinet, in each case a groove or a bulge, which is preferably rectangular in cross section, is advantageously provided in the transitional regions between the side walls and the angled connecting sections of the side walls. It is preferred in each of these fillets or bulges of the

Sidewalls a carrier introduced for stabilization.

The side walls and / or the bottom plate, in particular the mounting plates are preferably closed flat. Preferably, the circumferential wall of the cabinet body is closed flat. The provision of holes in the mounting plates for mounting purposes and / or for purposes of cable entry is advantageous but possible. Furthermore, the circumferential hood wall is preferably closed flat. The provision of

Holes in the hood wall for fastening purposes and / or to

For purposes of cable entry is advantageous but possible. Finally, the lid is preferably closed flat. The provision of holes in the lid for fastening purposes and / or for the purposes of

Cable bushing is advantageous but possible.

The hood, in particular the hood wall, preferably covers and / or surrounds the side walls completely. Preferably, the cabinet forms a hermetically sealed unit.

The invention further relates to a switchgear assembly having a plurality of switchgear cabinets according to the invention, which are joined together and each form a segment or module of the switchgear assembly whose circumferential wall is formed in particular by the walls or outer walls of the switchgear cabinets. Advantageously, these outer walls are formed by the hoods and / or the hood walls of the cabinets. Prefers are the cabinets, especially within the cabinet assembly or internally, also electrically connected to each other, the cabinets are advantageously fully equipped. This control cabinet arrangement can be developed in accordance with all embodiments explained in connection with the control cabinet according to the invention.

The switch cabinet assembly may be formed such that each module or segment, so each of the cabinets a packaging or complete assembly for each one blade pitch drive of the wind turbine has. In a wind power plant with three rotor blades and in each case an individual, electric blade pitch drive for each rotor blade, the control cabinet arrangement thus comprises, in particular, three control cabinets. In this case, the individual cabinets can each be closed by a lid, which is particularly removable. These covers are preferably each as already previously in connection with the control cabinet according to the invention

formed cover described. However, it is also possible to close the cabinets with a common lid, which is particularly removable. By means of the common cover in particular the interiors of the cabinet body of the switchgear and preferably also the access openings of the hoods of the switchgear are covered and / or closed. The common cover is advantageously designed complementary to the geometry of the bottom plates facing away from the end face of the arrangement formed by the joined cabinets, so that it can be placed accurately on this arrangement and this particular hermetically seals. The cabinets are designed in particular identical and preferably each have a polygonal cross-section. Each of the cabinets is designed in particular box-shaped. Furthermore, each of the cabinets is preferably designed pentagonal, so that the control cabinet arrangement formed from preferably three individual cabinets overall a hexagonal shape having. The pentagonal design of the control cabinets is preferably realized in that each of the control cabinets comprises five side walls, which preferably extend perpendicular or substantially perpendicular to the respective bottom plate, which is formed pentagonal. In particular, in this arrangement, a total of fifteen or at least fifteen

Mounting plates used. In order to enable a variant reduction, advantageously only two different sizes of side plates are used.

The control cabinet according to the invention and / or the control cabinet arrangement is preferably arranged in a rotating rotor hub of the wind power plant, wherein the rotor hub in particular rotates about a rotor axis. The control cabinet arrangement is preferably arranged radially in the middle in the rotor hub and / or designed as an arrangement surrounding the rotor axis. The term "radial" here preferably denotes one or any direction perpendicular to the rotor axis, in particular a rotor comprising the rotor hub and having a plurality of rotor blades, in particular three, which is mounted on a rotor

Machine carrier of the wind turbine is rotatably mounted about the rotor axis. Each of the rotor blades preferably extends away from the rotor hub in the direction of a blade axis oriented perpendicularly or substantially perpendicular to the rotor axis. The rotor blades are preferably mounted rotatably about their respective blade axis on the rotor hub. In particular, each of the rotor blades is rotatable relative to the rotor hub about its blade axis by means of a blade adjustment drive, these blade adjustment drives preferably corresponding to the blade adjustment drives already described in connection with the control panel arrangement. Preferably, one blade adjustment device is provided per rotor blade, wherein each of the blade adjustment devices respectively comprises one of the blade adjustment drives. Preferably, the Blattverstelleinrichtungen further comprise the electrical devices, each of the cabinets in particular one of Assigned sheet adjusting and its electrical equipment includes.

The method according to the invention for producing the switchgear cabinet is characterized in particular by the following method steps:

- Assembly and / or assembly of the bottom plate and the

Side walls comprising mounting plates with the electrical equipment,

- Making a cabinet body forming composite part of the assembled and / or assembled mounting plates and

- Introducing the cabinet body formed from the composite part in the hood and then attaching the same in and / or with the hood. This method can be developed according to all embodiments explained in connection with the control cabinet according to the invention.

The process for the production of the control cabinet considerably simplifies the assembly and / or assembly as well as the assembly of the cabinet body. It is much more time-saving and thus less expensive than known manufacturing processes. The introduction of the from the

Composite part formed cabinet body in the hood is preferably done by inserting or inserting.

The production of the composite part of the assembled and / or assembled mounting plates takes place in particular by assembling the assembled and / or assembled mounting plates to the cabinet body. According to a development of the method, the assembly and / or assembly of the base plate and the side walls comprising mounting plates takes place before assembly of the mounting plates to the cabinet body, ie in particular in the disassembled state of the cabinet body. As a result, the risk of injury to the assembly engineers involved in the structure is reduced. Advantageously, the Mounting plates in or in the horizontal state assembled and / or assembled.

According to one embodiment of the invention, after the assembly and / or assembly of the individual mounting plates, the side walls for the production and / or assembly of the cabinet body, in particular to the

Joints, firmly connected to the bottom plate. This firm connection can e.g. by screwing and / or by riveting and / or by forming one or more tongue and groove joints and / or by means of one or more other joining methods. Alternatively, after the

Assembly of the individual mounting plates, the side walls for the manufacture and / or assembly of the cabinet body relative to the bottom plate bent around the folding edges.

The simplified production of the switching cabinet according to the invention is continued according to an embodiment of the method in that, in particular for the completion of the production, the cabinet body is inserted into the hood and closed by the lid. Preferably, the cabinet body is firmly connected to the hood, for example by screwing and / or riveting.

The invention will be described below with reference to a preferred embodiment with reference to the drawing. In the drawing show:

Figure 1 is a perspective view of a cabinet according to a

Embodiment of the invention in an exploded view,

FIG. 2 shows a plan view of mounting plates of a dismantled cabinet body of the control cabinet, FIG. 3 shows a spatial representation of the cabinet body assembled from the mounting plates,

Figure 4 in the representations a) to d) four different ways of

Execution of joints on the mounting plates,

Figure 5 is a perspective view of one of several inventive

Cabinets composite control panel assembly with a lid in explosive and

Figure 6: a schematic representation of a wind turbine

Control cabinet arrangement according to FIG. 5.

The switching cabinet 17 shown as an explosive representation in FIG. 1 consists of a cabinet body 3, which in turn is connected by the connection of several

Mounting plates is formed. The mounting plates are a bottom plate 1 and five arranged perpendicular to the bottom plate 1 and connected to the bottom plate 1 side walls 2.1, 2.2, 2.3, 2.4 and 2.5. For the production of

Connection between the bottom plate 1 and the side walls 2.1, 2.2, 2.3, 2.4, 2.5 have these mounting plates in their joint areas joints, the joints of the bottom plate 1 with 9 and the joints of

Side walls 2.1, 2.2, 2.3, 2.4, 2.5 are designated 8. According to the embodiment shown in Figure 1, the cabinet 17 has a pentagonal

Cross-sectional shape. The cabinet body 3 formed by the mounting plates is inserted in total in a hood 4 and connected thereto, the hood wall is designated by the reference numeral 41. In addition, additional attachments 15 are present on the outside of the hood 4, which in the present case consist of two carriers 18 with accumulators 19 fastened thereto (compare FIG. The hood 4 is to improve their stability simultaneous reduction of their total weight at their upper, the

Introduction side of the cabinet body 3 side facing away with several

Access openings 5.1, 5.2 and 5.3 equipped whose geometry by firmly connected to the hood 4 struts 6.1 and 6.2 and by the

Hood wall 41 is defined. At inner corners of the hood wall 41 also connected corner supports 7.1 and 7.2 are firmly provided with the hood 4, which are also firmly connected to the struts 6.1, 6.2. With this design, a modular control cabinet is available, which has a high overall stability because of the sheathing of the cabinet body 3 with the hood 4 and thus is suitable for installation in a wind turbine.

FIG. 2 illustrates the mounting plates required for producing the cabinet body 3 when it has a pentagonal geometry. The individual mounting plates are the bottom plate 1, at the outer edges of the joints 9 are formed, which serve for connection to the corresponding joints 8 on the side walls 2.1, 2.2, 2.3, 2.4, 2.5. In the pre-assembly stage shown in Figure 2, the individual mounting plates are assembled, that is provided with electrical devices 20 (see FIG. 3) and preferably also with other internals and / or equipped, the assembly is greatly simplified in this way. In particular, the assembly and / or assembly of each mounting plate takes place in horizontal

State of the same.

As is apparent from the figure 3, the ready-made side walls 2.1, 2.2, 2.3, 2.4, 2.5 are aligned following their placement and connected to the ready-made base plate 1. The electrical devices 20 are schematically indicated in Figure 3. To connect the

Side walls 2.1, 2.2, 2.3, 2.4, 2.5 with the bottom plate 1 are already used mentioned joints 8, 9 at the edges of the side walls 2.1, 2.2, 2.3, 2.4, 2.5 and the bottom plate. 1

In the figure 4 different embodiments for the design of the joints 8, 9 are shown.

In the image part a) of Figure 4 it can be seen that the bottom plate 1 has at its outer edge to its plane by an angle α = 45 ° angled edge portion as a joint 9. Corresponding thereto, the side wall 2.1 has a to the angled edge portion 9 of the bottom plate. 1

corresponding connecting portion 8, so that after production of the

Connection between the bottom plate 1 and the side wall 2.1 of

Edge portion 9 of the bottom plate 1 and the connecting portion 8 are brought into contact with each other. The connecting portion 8 is then connected to the

Edge portion 9 firmly connected, for example by screwing and / or riveting. This type of connection facilitates the attachment of tools for the production of the fixed connection between the connecting portion 8 and the edge portion 9. The other side walls are mounted in a corresponding manner to the bottom plate 1.

This basic principle is also provided for the remaining embodiments shown in FIG.

The representation in the image part b) of Figure 4 varies insofar as here in the

Transition region between the side wall 2.1 and the bottom plate 1 is a rectangular cross-section recess 11 is present in the additional stiffening a support 12 is inserted.

In the version of the joints 8, 9 shown in the image part c) of FIG. 4, the joint 8 has an overlapping section 14, which projects beyond the end of the joint 9 of the bottom plate 1, in particular in the vertical direction. The vertical direction preferably refers to the plane of the plate 1. As a result, for example, an additional splash guard can be achieved, which avoids the prevention of the ingress of moisture and contaminants into the interior of the cabinet body in an improved manner.

Finally, the embodiment illustrated in the image part d) of Figure 4 in the bottom, near the bottom plate section of the side wall 2.1 introduced into the side wall 2.1 throat 10, which brings an additional stabilization in this section of the side wall 2.1 with it. In this groove 10, an additional carrier may be used, which was not provided in the example shown.

The exploded view of Figure 5 shows a cabinet assembly 13, which is composed of three cabinets 17, 21 and 22, wherein the

Control cabinet 17 corresponds to the control cabinet described above and the cabinets 21 and 22 are constructed analogously to the control cabinet 17. In the present case, the cabinet assembly 13 has a hexagonal

Cross-sectional geometry, which is formed by the total of three interconnected and internally wired, individual cabinets 17, 21 and 22. The entire switchgear assembly 13 has on its upper side a plurality of access openings, which are closed by a cover 16. Of the access openings representative only the access openings 5.1, 5.2 and 5.3 of the cabinet 17 are marked. On the outer sides of the hoods 4 are also the attachments 15, which in the present case consist of the carriers 18 with the accumulators 19 mounted thereon. Although only one of the two superposed accumulators 19 comprehensive

Accumulator pair is shown in the ready state of the

Switching cabinet assembly 13 a total of six accumulator pairs provided, which are each arranged between two adjacent the carrier 18 and are supported by these. The accumulator pairs form an annular arrangement. From Figure 6 is a schemati shear representation of a wind turbine 23 can be seen, comprising a standing on a foundation 24 tower 25, at the end facing away from the foundation 24 a nacelle 26 is disposed. The machine house 26 has a machine carrier 27, on which a rotor 28 is rotatably mounted about a rotor axis 29, which includes a rotor hub 30 and a plurality of rotor blades 31 and 32 connected thereto, each rotatable about a blade axis 33 and 34 on the rotor hub 30 are stored. The rotor blades 31 and 32 extend in the direction of their blade axes 33 and 34 away from the rotor hub 30, wherein the blade axes 33 and 34 extend transversely to the rotor axis 29. The rotor 28 is rotated about the rotor axis 29 by wind 35 and is mechanically coupled by means of a rotor shaft 36 to an electric generator 37 fixed to the machine carrier 27, which is driven by the rotor 28. The generator 37 generates electrical energy and feeds it into an electrical network 38. The rotor blades 31 and 32 are each about a blade pitch drive 39 and 40 rotatable about their respective blade axis relative to the rotor hub 30. The rotor 28 further comprises a third rotor blade, which is rotatably mounted on the rotor hub 30 about a blade axis extending transversely to the rotor axis 29, extends away from the rotor hub 30 in the direction of this blade axis and is rotatable relative to the rotor hub about this blade axis by means of a Blattverstellantriebs. The third rotor blade is not apparent from the illustration of FIG. 1. The rotor blades are arranged distributed uniformly around the rotor axis 29, so that two adjacent blade axes each enclose an angle of 120 °. The blade adjusting drives are electrically connected to the electrical devices 20, which are arranged in the control cabinet assembly 13, which is arranged radially in the rotor hub 30 with respect to the rotor axis 29 and advantageously surrounds the rotor axis 29. LIST OF REFERENCE NUMBERS

1 base plate

2.1 side wall

2.2 sidewall

2.3 sidewall

2.4 Sidewall

2.5 sidewall

3 cabinet body

4 hood

5.1 access opening

5.2 Access opening

5.3 Access opening

6.1 bracing

6.2 bracing

7.1 Reinforcement section

7.2 reinforcement section

8 joints

9 joints

10 throat

11 rectangular bulge

12 carriers

13 control cabinet arrangement

14 Overlap section

15 cultivation

16 lids

17 control cabinet

18 carriers

19 accumulator electrical facilities

switch cabinet

Wind turbine

foundation

tower

power house

machine support

rotor

rotor axis

rotor hub

rotor blade

blade axis

wind

rotor shaft

electric generator electrical network

Blattver st el 1 antri eb

B 1 attver antri eb

Dismissed

Claims

claims

1. Control cabinet of a wind turbine comprising modular mounting plates in the form of a bottom plate (1) and a plurality of side walls (2.1, 2.2, 2.3, 2.4, 2.5), wherein an educated by the mounting plates, an interior limiting cabinet body (3) has a circumferential, comprising wall formed from the side walls (2.1, 2.2, 2.3, 2.4, 2.5) and arranged on the inwardly facing sides of the mounting plates electrical devices,

characterized in that

a hood (4) forms a shell of the wall of the cabinet body (3).

2. Switchgear cabinet according to claim 1,

characterized in that

the cabinet body (3) is inserted in the hood (4) and secured thereto.

3. Switchgear cabinet according to claim 1 or 2,

characterized in that

the hood (4) with the bottom plate (1) of the cabinet body (3) is firmly connected.

4. Switchgear cabinet according to one of the preceding claims,

characterized in that

the mounting plates (1, 2.1, 2.2, 2.3, 2.4, 2.5) are already equipped prior to assembly of the cabinet body (3) with the electrical devices (20).

5. Switchgear cabinet according to one of the preceding claims,

characterized in that

the side walls (2.1, 2.2, 2.3, 2.4, 2.5) have at least one reinforcement in the form of a double-walled design.

6. Switchgear cabinet according to one of the preceding claims,

characterized in that

the hood (4) which surrounds a circumferential hood wall (41) has at least one access opening on its end face remote from the bottom plate (1), which is delimited by the hood wall (41).

7. Switchgear cabinet according to one of claims 1 to 5,

characterized in that

the hood (4) which surrounds a circumferential hood wall (41) has on its end face facing away from the bottom plate (1) one or more struts (6.1, 6.2) fixedly connected to the hood (4) and a plurality of access openings (5.1, 5.2, 5.3), which are defined by the one or more struts (6.1, 6.2) and the hood wall (41).

8. Switchgear cabinet according to claim 6 or 7,

characterized in that

in one or more corners of the hood wall (41) one each

Reinforcement section (7.1, 7.2) arranged and fixed to the hood (4) is connected.

9. Switchgear cabinet according to claim 8,

characterized in that

the one or more reinforcing sections (7.1, 7.2) each form a corner support of the hood (4).

10. Switchgear cabinet according to claim 8 or 9,

characterized in that

the one or more struts (6.1, 6.2) fixed to the one or more

Reinforcement sections (7.1, 7.2) are connected.

11. Switchgear cabinet according to one of claims 6 to 10,

marked by

at least one removable lid (16) covering the at least one or more access openings (5.1, 5.2, 5.3) of the hood (4).

12. Switchgear cabinet according to one of the preceding claims,

characterized in that

the bottom plate (1) has an insert which is equipped with a part of the electrical devices (20).

13. Switchgear cabinet according to one of the preceding claims,

characterized in that

for the firm connection of the side walls (2.1, 2.2, 2.3, 2.4, 2.5) with the

Base plate (1) the side walls and the bottom plate at their edges

Have joints (8, 9) or folded edges on which the side walls are firmly connected to the bottom plate.

14. Switchgear cabinet according to one of the preceding claims,

characterized in that

the bottom plate (1) at its outer edge one or more to her

Bottom plate plane has angled edge portions as joints (9).

15. Switchgear cabinet according to claim 14,

characterized in that

the side walls (2.1, 2.2, 2.3, 2.4, 2.5) to the angled or

Edge portions (9) of the bottom plate (1) corresponding

Having connecting portions (8) as joints, so that after establishing a connection between the bottom plate (1) and the side walls (2.1, 2.2, 2.3, 2.4, 2.5) or the edge portions (9) of the bottom plate (1) and the connecting portions (8 ) are brought together with each other.

16. Switchgear cabinet according to claim 15,

characterized in that

the connecting sections (8) of the side walls (2.1, 2.2, 2.3, 2.4, 2.5) overlapping to the or the corresponding edge portions (9) of the bottom plate (1) are executed.

17. Switchgear cabinet according to claim 15 or 16,

characterized in that

in the transition areas between the side walls (2.1, 2.2, 2.3, 2.4, 2.5) and the angled connecting portions (8) of the side walls (2.1, 2.2, 2.3, 2.4, 2.5) in each case a groove (10) or a rectangular cross-section bulge ( 11) is present.

18. Switchgear cabinet according to claim 17,

characterized in that

in each of the recesses (10) or the bulges (11) of the side walls, a support (12) is introduced for stabilization.

19. Switch cabinet arrangement with a plurality of switch cabinets, each of which is formed by a switch cabinet according to one of the preceding claims, in which

the control cabinets (17, 21, 22) are joined together and each form a segment of the control cabinet assembly (13) whose peripheral wall is formed by the outer walls of the cabinets.

20. Switchgear assembly according to claim 19,

characterized in that

the control cabinets (17, 21, 22) within the control cabinet assembly (13) are electrically connected together.

21. Switchgear assembly according to claim 19 or 20,

characterized in that

each of the control cabinets (17, 21, 22) has a packaging for each one Blattverstellantrieb the wind turbine (23).

22. Switchgear assembly according to one of claims 19 to 21,

characterized in that

the control cabinets (17, 21, 22) are of identical construction and each have a polygonal cross-section.

23. Switchgear assembly according to one of claims 19 to 22,

characterized in that

the control cabinet arrangement (13) is arranged in a rotor hub (30) of the wind power plant (23) which rotates about a rotor axis (29).

24. Switchgear assembly according to claim 23,

characterized in that

the switchgear assembly (13) is arranged radially in the center of the rotor hub (30).

25. Switchgear assembly according to one of claims 19 to 24,

characterized in that

on the outer sides of the hoods (4) of the control cabinets (17, 21, 22) additional attachments (15) are attached.

26. A method for producing a switchgear cabinet according to one of the preceding claims,

characterized by the following process steps:

- equipping the base plate (1) and the side walls (2.1, 2.2, 2.3, 2.4, 2.5) comprising mounting plates with the electrical equipment,

- Production of the cabinet body (3) forming composite part of the assembled mounting plates and

- Introducing the cabinet body formed from the composite part (3) in the hood (4) and subsequent attachment of the same with the hood (4).

27. The method according to claim 26,

characterized in that

the assembly of the bottom plate (1) and the side walls (2.1, 2.2, 2.3, 2.4, 2.5) comprising mounting plates before assembling the mounting plates to the cabinet body (3).

28. The method according to claim 26 or 27,

characterized in that

the side walls (2.1, 2.2, 2.3, 2.4, 2.5) and the bottom plate (1) for producing the cabinet body (3) at the joints (8, 9) are interconnected.