TW201517079A - Molded transformer for use aboard floating off-shore power generator - Google Patents

Abstract

Molded transformers are needed for use aboard floating off-shore power generators. In order to shorten the mounting and installation work period for a floating off-shore power generator, for instance, a method can be considered, whereby constitutive members are pre-assembled, shipped in a horizontally oriented state, and this is raised up at sea to complete the mounting. However, prior art molded transformers do not have a structure wherein being oriented horizontally for transportation and being raised up at installation time for use are taken into consideration. In order to solve the problem above, the structure has reinforcement metal fixtures at the top, bottom, front, back, left and right of the transformer, iron cores are immobilized by the top and bottom reinforcement metal fixtures, and coils are independently supported by these reinforcement metal fixtures. This allows a transformer to be provided, raisable to be vertical at mounting time even if oriented horizontally during transport or prior to mounting, thereby shortening the mounting and installation work period. In addition, a transformer can be provided, wherein rocking and tilting are taken into consideration, thus suitable to a floating off-shore power generator.

Description

Die-casting transformer for floating type offshore power generation equipment

The present invention relates to an improvement of a molded transformer mounted on a floating type offshore power generating apparatus.

Japanese Patent Laid-Open Publication No. SHO 58-164205 (Patent Document 1) is known. Patent Document 1 discloses an anti-vibration dry-type transformer including a fastening metal upper side and a lower end frame, and a connecting metal integrally connecting the end frames, in order to improve the seismic strength of the molded transformer. Pieces.

Prior technical literature Patent literature

Patent Document 1: Japanese Patent Laid-Open No. SHO 58-164205

There is a need for a molded-type transformer for a floating-type offshore power plant. In the prior floating type offshore power generation device, components were assembled, installed, and installed at sea, and thus it is expected that the construction period will be shortened. As a solution to this problem, for example, in the case of a floating type offshore wind turbine generator, it has a structure in which the longitudinal direction is long. Therefore, it is conceivable that the constituent members are assembled in advance, transported in a lateral direction, and erected at sea. To complete the installation.

However, the former molded transformer of Patent Document 1 is not limited to the structure for improving the earthquake resistance, but is not considered to be transported in the lateral direction and used for erecting at the time of installation. Further, the gyro ceremonial wave power generation device or the like which is one of the floating type offshore power generation devices also needs to take into consideration the structure of vibration or shaking at sea. However, the former molded transformer is not a structure in which the sea is shaken or tilted.

In order to solve the above problem, a transformer structure is formed in which a reinforcing member is included above, below, and to the right and left of the transformer, and the core is fixed by the reinforcing members, and the coils are independently supported by the reinforcing members.

According to the present invention, it is possible to provide a transformer which can be vertically erected during installation even when it is conveyed or horizontally before installation. Thereby, the installation and installation schedule can be shortened.

1‧‧‧Floating offshore wind turbine

2‧‧‧Transformers

3‧‧‧Transportation vessel

4‧‧‧Reinforcing metal parts for handling

5‧‧‧ sea surface

6‧‧‧wave power generation unit

100‧‧‧Molded Transformer

101‧‧‧ coil

102‧‧‧ iron core

103‧‧‧Upper coil support

104‧‧‧Lower coil support

105, 118‧‧‧ front and rear coil support

106‧‧‧round coil support

Strengthening metal parts before and after 107‧‧

108‧‧‧Upper reinforced metal parts

109‧‧‧ Lower reinforced metal parts

Strengthening metal parts around 110‧‧

111‧‧‧Support bolts

112‧‧‧Upper fastening metal parts

113‧‧‧Under fastening metal parts

114‧‧‧ cover

115‧‧‧ components

116‧‧‧ column bolt

117‧‧‧Coil fastening metal parts

Fig. 1 (A) to (C) are a front view, a plan view, and a side view of a molded transformer for mounting a floating type offshore power generator.

2(A) and 2(B) are side views showing a supporting structure of a core and a coil.

3(A) to (C) are side views of the transformer when the transformer is tilted and when it is placed laterally.

4(A) and 4(B) are views showing a state in which the coil is pulled out from the iron core.

5(A) to 5(C) are diagrams in which a cover member is attached to a reinforcing metal member as a protective case, and a member is disposed on the upper portion.

6(A) and 6(B) are plan views showing variations of the coil support member before and after the coil.

7(A) to 7(C) are views showing a mounting procedure of a floating type offshore wind power generator.

8(A) to (C) are diagrams schematically showing the sway of the floating body of the gyro ceremonial wave power generation device.

Hereinafter, the description will be made by way of examples and using the drawings. First, a floating type offshore wind power generation device which has been proposed in the present invention will be described. In the floating type offshore wind turbine generator, when power generated by the generator is transmitted, there is a need to increase the voltage of the power generation and to transmit power for safety or to suppress loss during power transmission. Therefore, it is necessary to install the transformer at sea. Inside the wind power plant.

Fig. 7 is a view showing a mounting procedure of a floating type offshore wind power generator. In Fig. 7, 1 is a floating type offshore wind power generation device, 2 is a transformer, 3 is a transport ship, 4 is a reinforcing metal member for transportation, and 5 is a sea surface. In Fig. 7, the floating type offshore wind turbine generator has a vertically long structure. Therefore, the components are assembled in advance, and transported in a lateral direction as shown in (A), and placed at sea as shown in (B). Raise it up. Then, as shown in (C), the lifting reinforcing metal member 4 is vertically erected and removed to complete the mounting. In this case, the transformer 2 provided in the floating type offshore wind power generator is transported in a lateral direction during transport and transport, and is used in the vertical direction at the time of mounting. Therefore, it is possible to cope with any of the lateral and vertical configurations.

Fig. 8 is a view schematically showing the sway of a floating body of a gyro ceremonial wave power generating device which is one of the floating type offshore power generating devices. The gyro ceremonial wave power generation system generates electric power by driving the generator by the gyro moment when the number of revolutions and the phase of the generator are synchronized with the wobble of the floating body caused by the shaking of the waves. In Fig. 8, 6 is a gyro ceremonial wave power generation device, 2 is a transformer, 5 is a sea surface, and Figs. 8(A), (B), and (C) schematically represent a floating body caused by shaking of waves. Shake the person. Thus, even in the gyro ceremonial wave power generation device, the transformer 2 provided therein needs to take into consideration the structure of vibration or shaking at sea.

Example 1

In the present embodiment, the following molded transformer will be described, that is, the core is configured to be coupled to the reinforcing metal member, and the coil is also configured to be individually supported by the reinforcing metal member.

Fig. 1 is a view showing the molding change of the present embodiment for mounting on a floating type offshore power generating device. The pressure device, (A) shows a front view, (B) shows a top view, and (C) shows a side view. In Figs. 1(A) and (C), 101 is a resin molded coil (hereinafter, referred to as a coil for the sake of simplicity), 102 is a core, 107 is a front and rear reinforcing metal member, 108 is an upper reinforcing metal member, and 109 is The lower reinforcing metal member, 110 is a left and right reinforcing metal member, 111 is a supporting bolt, 112 is an upper fastening metal member, and 113 is a lower fastening metal member. Further, in Figs. 1(B) and (C), 103 is an upper coil support, 104 is a lower coil support, 105 is a front and rear coil support, and 106 is a left and right coil support. Here, in the present embodiment, a molded transformer including a coil having three cores and three inner cores will be described as an example. In addition, the direction of the coil axis of the coil is set to the vertical direction, and the direction in which the three coils are arranged is the left-right direction, and the direction orthogonal to the coil axis direction and the arrangement direction is referred to as the front-rear direction.

2 is a side view showing a supporting structure of a core and a coil. Fig. 2(A) is a side view showing a structure in which only the iron core is pulled out and the core and the reinforcing metal member are fixed. In FIG. 2(A), the core 102 is fixed to the upper reinforcing metal member 108 by the support bolt 111 via the upper fastening metal member 112, and is fixed to the lower portion by the support bolt 111 via the lower fastening metal member 113. The metal member 109 is reinforced. Further, in order to reduce the load applied to the core, it is necessary to connect the upper and lower reinforcing metal members to the front and rear reinforcing metal members and the left and right reinforcing metal members by using bolts or the like.

Fig. 2(B) is a side view showing the configuration in which the display coils are individually supported by the reinforcing metal members. As shown in FIG. 2(B), the coil 101 is fixed to the upper reinforcing metal member 108 by the support bolt 111 and the upper fastening metal member 112 via the upper coil support member 103, and is tightly closed via the lower coil support member 104. The solid metal member 113 is fixed to the lower reinforcing metal member 109. Moreover, it is fixed to the front and rear reinforcing metal members 107 via the front and rear coil support members 105. Further, as shown in FIGS. 1B and 1C, the coil 101 is fixed to the left and right reinforcing metal members 110 via the left and right coil support members 106.

Further, although the coils are fixed to the upper lower reinforcing metal members 108 and 109 via the upper lower coil supporting members 103 and 104 and the upper and lower fastening metal members 112 and 113, the metal members 112 may be fastened without being interposed therebetween. , 113 and directly fixed to the upper lower reinforcement metal parts 108, 109.

Further, as shown in FIGS. 1(B) and 1(C), a plurality of coils are present, and the coils at the left and right ends are adjacent to the left and right reinforcing metal members 110, so that they can be fixed to the left and right reinforcing metal members 110, but the coils at the center portion are Since it is not adjacent to the left and right reinforcing metal members 110, it cannot be fixed to the left and right reinforcing metal members 110. In this case, although not shown, it is also possible to provide a coil holder, for example, and to support the coil of the center portion together with the coil adjacent to the right and left. Further, the left and right reinforcing metal members may be disposed in the center portion, and the coils may be fixed to the left and right reinforcing metal members even in the center portion.

That is, the core 102 is fixed by the upper and lower reinforcing metal members 108, 109, and the coil 101 is constructed in such a manner that the coil is separately fixed to the upper and lower reinforcing metal members 108, 109 separately from the core. The front and rear reinforcing metal members 107 are fixed to the front and rear, and are supported by the left and right reinforcing metal members 110 or the adjacent coils with respect to the right and left sides of the coil via the coil supporting members.

In this way, not only the coils are fastened from above and below, but also the coils are fastened back and forth or left and right by the coil support members. Further, the core is a structure fixed to the reinforcing metal member. Thereby, the coils are independently supported, and therefore, the structure in which the self-weight of the coil is not applied to the core even in a state of being in a lateral direction is obtained.

Fig. 3 is a side view showing the transformer when the transformer of the configuration shown in the embodiment is tilted and when it is placed laterally. Fig. 3(A) shows a case where it is normal, (B) shows a case where it is inclined to the right, and (C) shows a case where it is placed laterally to the right side. As shown in FIG. 3(C), even in the state of being placed in the lateral direction, the coil 101 is fixed to the front and rear reinforcing metal members 107 via the front and rear coil support members 105, so that deformation and positional deviation due to self-weight can be prevented. Further, since the core 102 is fixed by the upper and lower reinforcing metal members 108 and 109, deformation and positional displacement can be prevented in the same manner.

As described above, according to the transformer of the present embodiment, it is possible to cope with both the lateral direction and the longitudinal direction. Therefore, it is possible to provide a structure that can be transported in the lateral direction and erected during installation. A molded transformer for mounting a floating type offshore power generation device that is used and can be shortened in installation schedule.

Further, since it has a structure that is resistant to vibration or shaking, it is possible to provide a molded transformer that can cope with gyro ceremonial wave power generation or the like.

Further, since it can be carried in and out in a state of being erected in the horizontal direction or the longitudinal direction, there is an effect that the operation becomes easy.

Example 2

Fig. 4 is a view showing a state in which the coil is pulled out from the iron core. (A) shows a front view, and (B) shows a side view. In FIG. 4, the configuration of each symbol is the same as the configuration of the same reference numerals as those in the above-described drawings, and thus the description thereof is omitted. As shown in FIG. 4, the upper reinforcing metal member 108, the upper fastening metal member 112, the upper coil support member 103, and the front and rear coil support members are not shown, and the left and right coil support members are removed as needed. The coil 101 can be pulled out from the core.

Therefore, even in a state where the sea is shaken, the coil support of the coil to be replaced can be removed and the coil can be replaced. The coil that is not replaced is supported by the reinforcing metal member via the coil support member in each coil, so that the coil does not move by the coil support member even in the state of being shaken, so that the coil can be fixed as it is, and can be performed. Replace only the required coils.

As described above, according to the present embodiment, even when the sea is shaken, the coil can be replaced, and the maintenance effect can be dealt with.

Example 3

Fig. 5 is a view showing a reinforcing metal fitting cover body as a protective casing and a member disposed on the upper portion. In Fig. 5, (A) shows a front view, (B) shows a plan view, and (C) shows a side view. In FIG. 5, 114 is a cover, and 115 is a member. The other components are denoted by the same functions as those of the same reference numerals, and the description thereof is omitted.

As shown in FIGS. 5(A) and (B), the cover can be attached to the reinforcing metal member to form a casing, and the new protective casing can be omitted. Further, a support member such as an insulator or a cable holder can be easily attached to the reinforcing metal member. Further, as shown in FIGS. 5(A), (B), and (C), another member 115 may be provided on the reinforcing metal member.

Therefore, according to the present embodiment, there is an effect that the space inside the floating type offshore power generating device can be reduced.

Example 4

Fig. 6 is a view showing a variation of the coil support member before and after the coil. 6(A) and (B) each show a plan view of a molded transformer.

In Fig. 6(A), 116 is a stud bolt, and 117 is a coil fastening metal member. Regarding the coil front and rear coil support members, in the first embodiment, the front and rear reinforcing metal members 107 are fixed via the front and rear coil support members 105, but in Fig. 6(A), the front and rear coil support members 105 and the coils are shown. A method of fastening the metal member 117 and the stud bolt 116 to fix all the coils.

Further, Fig. 6(B) shows a method in which 118 is a front and rear coil support member, and a plurality of front and rear coil support members 105 in the first embodiment are integrated, thereby fixing all the coils.

According to the present embodiment, all the coils can be fixed at the same time, so that there is an effect that the fixing can be performed with a uniform force.

Although the embodiments have been described above, the present invention is not limited to the above embodiments, and various modifications are included. For example, in the embodiment, the case where three coils are present has been described. However, the present invention is not limited to the embodiment, and the same effect can be obtained by one, two, or four or more coils. Further, in the examples, the reinforcing member is used to reinforce the metal member, but it may be a resin member such as a resin material that does not have a metal. Further, the above embodiments are described in detail to explain the present invention in an easy-to-understand manner, and are not necessarily limited to all of the constituents described.

100‧‧‧Molded Transformer

101‧‧‧ coil

102‧‧‧ iron core

103‧‧‧Upper coil support

104‧‧‧Lower coil support

105‧‧‧ front and rear coil support

106‧‧‧round coil support

Strengthening metal parts before and after 107‧‧

108‧‧‧Upper reinforced metal parts

109‧‧‧ Lower reinforced metal parts

Strengthening metal parts around 110‧‧

111‧‧‧Support bolts

112‧‧‧Upper fastening metal parts

113‧‧‧Under fastening metal parts

Claims (6)

A die-casting transformer, characterized in that it comprises a plurality of cores and a plurality of resin-molded coils provided with the core, and in the transformer, when the coil axis direction of the resin-molded coil is set to upper and lower When the direction in which the plurality of resin molded coils are arranged is set to the left and right, and the direction orthogonal to the coil axis direction and the array direction is set to be front and rear, the reinforcing metal members are respectively included in the upper, lower, front, and left sides of the transformer. And the upper and lower, front and rear, and left and right reinforcing metal members are respectively coupled to each other, wherein the upper and lower portions of the iron core are fixed by the upper and lower reinforcing metal members, and the plurality of resin molded coils are independently independently supported by the upper, lower, front and rear, and left and right The metal parts are reinforced to support the upper and lower, front and rear, and left and right parts. The molded transformer of claim 1, wherein the core is fixed to the upper and lower reinforcing metal members via a fastening metal member, and the resin molded coil is supported by the coil support member by the upper and lower, front and rear, left and right reinforcing metals Fastening support. The molded transformer of claim 1, wherein the plurality of resin molded coils are constructed in such a manner that the upper and lower portions and the front and rear portions are fixed independently by the above-mentioned upper and lower and front and rear reinforcing metal members, respectively. The left and right portions of the cast coil are supported by the left and right reinforcing metal members or the adjacent resin molded coils via the coil support member. The molded transformer according to any one of claims 1 to 3, wherein the resin molded coil adjacent to the resin molding coil disposed at the left and right end portions of the transformer is interposed between the plurality of resin molded coils The coil holder is configured to be fastened and supported by an adjacent resin molded coil. A molded transformer according to any one of claims 1 to 4, wherein the upper and lower sides are Rear, left and right reinforced metal parts are mounted on the cover or support member. A method for replacing a resin molded coil of a die-casting transformer, characterized in that the die-casting transformer comprises a plurality of cores and a plurality of resin-molded coils configured by enclosing the core, and the transformer is a mold-molded coil The direction of the coil axis is set to the upper and lower sides, and the arrangement direction of the plurality of resin molded coils is set to the left and right, and the direction orthogonal to the coil axis direction and the arrangement direction is set to be front and rear, and the transformer is placed above and below the front and rear of the transformer. Each of the left and right sides includes a reinforcing metal member, and the upper and lower, front and rear, and left and right reinforcing metal members are respectively coupled, and the iron core is fixed to the upper and lower portions by the upper and lower reinforcing metal members, and the plurality of resin molded coils are independently supported by the coil. And supporting the upper and lower, front and rear, left and right portions of the upper and lower, front and rear, and left and right reinforcing metal members, and removing the coil support member of the resin molded coil to be replaced in the plurality of resin molded coils, and other resin molds The cast coil is maintained in a state supported by the above-mentioned upper, lower, front, and rear reinforcing metal members.