JP2627612B2 - Thyristor valve - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

The present invention relates to relates to a thyristor valves, and more particularly to a structure of suitable thyristor valve to stacking multiple stages a plurality of thyristor modules that implement the thyristor element and its peripheral circuits.

[0002]

2. Description of the Related Art Conventionally, when a thyristor valve is constituted by a plurality of thyristor modules, a supporting structure constructed by a cylindrical insulating support made of fiber reinforced plastic (FRP) and a frame made of a shaped steel is used. Among them, a structure in which a plurality of thyristor modules are stacked in multiple stages is often adopted. In this case, each thyristor module is connected in series with each other so as to have a predetermined voltage.
Since the thyristor modules in each stage all have different potentials, it is necessary to keep them insulated from each other. Further, when a thyristor valve is configured, a high voltage and a large capacity of the thyristor valve accompanying a large electric power transport necessitate an increase in the weight of the thyristor module and a multi-stage structure. And
When thyristor valves are stacked in multiple stages, the total weight of the thyristor valves increases, and the overall height including the insulation distance in the structure increases, so the amount of deformation during earthquakes and the load on the support members increase, It is necessary to increase and strengthen the strength members and to add a vibration damping device.

Therefore, various thyristor valves have been proposed in consideration of an increase in the weight of the thyristor module and a multi-stage product. For example, as for a vibration-resistant structure of a thyristor valve, as described in Japanese Patent Application Laid-Open No. 59-3114, there is a structure in which reinforcement is performed using an insulating plate wall or an insulating rod. Japanese Unexamined Patent Publication No. Sho 63-26 uses a seismic-resistant structure that supports a base isolated at the bottom and hangs from the top.
Japanese Patent Application Laid-Open No. Sho 50-91865 discloses a vibration-proof rubber structure for a bolt fastening portion of a supporting glass flange portion. Japanese Patent Application Laid-Open No. 2-84068 discloses a structure in which a vibration absorbing weight member is provided inside an insulating support.

[0004]

In the prior art described above, when a thyristor valve is constructed, thyristor modules having different electric potentials are arranged three-dimensionally. The thyristor module and the metallic frame having the property are also assembled while maintaining an insulating distance. Therefore, if a metal frame is inserted between the thyristor modules in each stage, it is advantageous for the earthquake-resistant structure, but as the number of metal frames increases, the height of the entire thyristor valve increases, and the installation space for the device is reduced. You can't do that.

An object of the present invention is to provide a thyristor valve capable of reducing the installation space.

[0006]

According to the present invention, there is provided a thyristor module having at least one stage.
And a metal frame, as a unit, a thyristor element and a plurality of thyristor modules which are mounted in a plurality of stages and are mounted on a peripheral circuit for driving the thyristor element, and a plurality of insulating members each supporting each thyristor module. comprising a post, and a plurality of metal frame supporting the connection has been the isolation struts to each isolation strut, the at least one stage rhino Rita module of the plurality of thyristor modules are coupled together in a metal frame A thyristor valve is configured.

Further , the present invention provides a thyristor module of each stage.
At least one stage.
Star module and metal frame are integrated
To drive the thyristor element and the thyristor element
Peripheral circuits are mounted and divided into multiple
Thyristor module and each thyristor module
Each supporting column is connected to a plurality of supporting columns.
With multiple metal frames to support each insulating post.
The thyristor module at each stage is divided into multiple
Thyristor module
Each thyristor module of at least one stage is a metal frame
And integrated with the thyristor module.
The embodied metal frame is used as a split-type metal frame.
Thyristor valves arranged separately from each other
It is what constituted.

[0008] At least one stage thyristor module
As an integrated metal frame for intermediate,
Peripheral circuit for driving star element and thyristor element
Multiple thyristors mounted in multiple stages
Supports each module and each thyristor module
Connected to the upper side of each
Connected to the lower metal frame and the lower side of each insulating column.
With lower metal frame in the middle of each support post
An intermediate metal frame, and
Thyristor module of at least one of the star modules
Lumpur are coupled together to an intermediate for Metal Frame
Thyristor valve.

Further, each stage thyristor module is
At least one stage thyristor module
Module and an intermediate metal frame
To drive the thyristor element and the thyristor element
Peripheral circuits are mounted and divided into multiple
Thyristor module and each thyristor module
Multiple insulating posts to be supported, and the upper side of each insulating post
The upper metal frame connected to
The lower metal frame connected to the
And an intermediate metal frame connected to the
The tier thyristor modules are divided into multiple
Of the thyristor modules of the plurality of stages
Each thyristor module of at least one stage has an intermediate metal frame.
And integrated with the thyristor module.
The embodied intermediate metal frame is divided metal frame
Thyristors that are arranged separately from each other
This constitutes a valve.

Further, when configuring a thyristor valve, it is desirable to employ the following configuration.

(1) Each metal frame integrated with the thyristor module is connected to each other via an insulating member.

(2) A rhino integrated with a metal frame
The Lister module is connected to the insulating support via a metal frame.
Is tied .

(3) The metal frame is provided with a flat collar.
And is connected to the insulating pillar .

(4) Siri integrated with metal frame
The star module is connected to the insulating column together with the metal frame .

(5) Metal frame and thyristor module
Each of the lugs is connected to an insulating column via a flat collar .

[0016]

According to the above-described means, the specific metal frame is divided into a plurality of parts in the horizontal plane corresponding to the potential of the thyristor module, so that the specific metal frame can be integrated with each thyristor module. When the metal frame is integrated with the thyristor module, there is no need to provide a space as an insulating distance between the metal frame and the thyristor module, and the installation space can be reduced. When the thyristor modules are stacked in multiple stages along the vertical direction, the overall height of the thyristor valve can be reduced. When the height of the entire thyristor valve can be reduced, the natural frequency of the entire structure increases, and the amount of displacement in response to an external force such as an earthquake can be reduced. In addition, thyristor valves are high-voltage equipment and must be insulated from other equipment and buildings.
It is easy to secure an insulation distance from other members, and it is possible to easily connect electrical wiring and the like to other devices, and to improve the reliability of the devices. In addition, when the metal frames integrated with the thyristor module are connected to each other via an insulating member, the earthquake resistance can be further improved.

[0017]

An embodiment of the present invention will be described below with reference to the drawings.

In FIG. 1, the thyristor valve includes an upper metal frame F1, a lower metal frame F2, intermediate metal frames F31 to F34, a plurality of thyristor modules M11 to M44, and a plurality of insulating posts 10. . The metal frames F1 and F2 are arranged in parallel with a horizontal plane (an installation surface that is a surface orthogonal to the direction in which gravity acts), and each of the metal frames F1 and F2 has a plurality of metal frames arranged in a vertical direction. They are connected to each other by insulating posts 10. Each of the insulating pillars 10 is formed in a substantially cylindrical shape using a material having excellent insulating properties, such as FRP or glass. In addition, each metal frame F1, F2
Is formed in a substantially flat plate shape using a shaped steel or the like.

The thyristor modules M1 to M44 are mounted with thyristor elements and peripheral circuits for driving the thyristor elements, and four thyristor modules are stacked one on top of another. That is, the thyristor module M11
To M14 constitute the first stage, and the thyristor module M2
1 to M24 constitute the second stage, and the thyristor module M
31 to M34 constitute a third stage, and thyristor modules M41 to M44 constitute a fourth stage.
The thyristor modules in each stage are distributed and arranged so as to be separated from each other by four and parallel to the metal frames F1 and F2. And each thyristor module M11 to M
The four corners 44 are connected to the insulating pillar 10. further,
Each of the thyristor modules M11 to M44 is arranged with an insulation distance from each other in the horizontal direction and the vertical direction. The first-stage thyristor modules M11 to M1
Reference numeral 4 denotes a fourth thyristor module M41 to M4, which is arranged with an insulation distance in the vertical direction from the metal frame F2.
M44 is arranged so as to keep an insulation distance in the vertical direction with respect to the metal frame F1.

On the other hand, the intermediate metal frames F33 to F34 formed in a flat plate shape using a shaped steel or the like
Of the thyristor modules M31 to M34 in the third stage, and are integrally fixed to the third-stage thyristor modules M31 to M34, and are configured to be separated from each other as a split-type metal frame. .

That is, the thyristor modules M31 to M
The thyristor modules M31 to M34 must be electrically insulated from each other because the potentials of the thyristor modules 34 are different from each other. For this reason, when the frames F31 to F34 are integrally formed, the metal frame must be assembled with the thyristor modules M31 to M34 while maintaining an insulating distance from each other. However, the metal frames F31 to F34 are thyristor modules M31 to M3.
4, the thyristor modules M31 to M34 are integrated with the metal frames F31 to F34, respectively.
4 can be maintained.

Therefore, as shown in FIG. 2 (a), when the intermediate metal frame F30 is integrally formed,
It is necessary to maintain an insulation distance between each of the thyristor modules M21 to M24 of the third stage and each of the thyristor modules M31 to M34 of the third stage. However, in the case of the thyristor valve of the present embodiment, as shown in FIG. 2B, the intermediate metal frames F31 to F34 are separated from each other and integrated with the thyristor modules M31 to M34. There is no need to maintain an insulation distance between the intermediate metal frames F31 to F34 and the third-stage thyristor modules M31 to M34, and at least this allows the overall height of the thyristor valve to be reduced.

If the height of the thyristor valve can be reduced,
As a structure, the natural frequency of the entire structure increases, and the amount of response displacement can be reduced with respect to an external force such as an earthquake. Thyristor valves are high-voltage equipment and must be insulated from other equipment and buildings.However, the reduced vibration displacement makes it easier to secure the insulation distance from other equipment and reduces the In this case, it is possible to easily connect electric wires and the like to the device and improve the reliability of the device.

Further, since the metal frames F31 to F34 are provided substantially in the middle between the metal frames F1 and F2, the moment applied to each of the insulating columns 10 when an earthquake or the like occurs can be reduced, and the strength can be reduced. Improvement can be achieved. Furthermore, even if a structure corresponding to the metal frames F31 to F34 is provided in each thyristor module, the insulating support 1
The load applied to zero can be reduced.

Next, another embodiment of the present invention will be described with reference to FIG.

In this embodiment, when thyristor modules are stacked in six stages, an intermediate metal frame is provided between the upper metal frame F1 and the lower metal frame F2.
Metal frames F3, F4, F5 are provided, and metal frames F
3, F5 is divided into four parts as a split type metal frame, and the thyristor modules M21 to M24, M51 to M54 are integrally fixed to the metal frames F31 to F34, F51 to F54. Since these are the same as in the example, the same or corresponding elements as those in FIG. 1 are denoted by the same reference numerals, and description thereof is omitted.

In this embodiment, the second and fifth thyristor modules M21 to M24, M51 to M54
Is fixed to each of the metal frames F31 to F34 and F51 to F54, so that even if six thyristor modules are stacked, the overall height of the thyristor valve can be reduced.

When six thyristor modules are stacked, as shown in FIG. 4, the metal frames F31 to F34 and F51 to F54 of each stage are connected to each other by an insulating member 5 as shown in FIG.
When the thyristor modules are connected to each other via the first and second thyristors, the strength can be further improved while the insulation between the thyristor modules M21 to M24 and M51 to M54 is maintained, and the earthquake resistance can be improved. As the insulating members 51 and 52, it is desirable to use, for example, a member made of a pipe such as FRP, which has an insulating property and a strength withstanding a load such as a moment. Further, metal frames F31 to F3
4, when connecting F51 to F54 and the insulating members 51 and 52, the insulating support 10 and the metal frames F31 to F34 and F5
After assembling them with the insulating members 51 and 52, the metal frames F31 to F34 and F51 may be attached.
After attaching the insulating members 51 and 52 to the metal frames F31 to F34 and F51 to F54,
May be concluded. Further, the structure in which the divided metal frames are connected via the insulating members 51 and 52 can be applied to other thyristor modules regardless of the number of stages.

Next, a fixing method for fixing the integrated metal frame and the thyristor module to the insulating support 10 will be described with reference to FIGS. In each figure, the metal frame F31 and the thyristor module M
The case where 31 is fixed to the insulating pillar 10 is shown.

First, as shown in FIG. 5, the thyristor module M31 is fixed to the metal frame F31, and the end of the metal frame F31 is placed between the flanges 60 attached to the end of the insulating support post 10, as shown in FIG. Then, each flange 60 is fastened with a bolt or the like, and the end of the metal frame F31 is fixed to the insulating pillar 10 via the flange 60.

In the second method, as shown in FIG. 6, a thyristor module M31 is fixed to a metal frame F31,
The end of the metal frame F31 is inserted between the flanges 60 attached to the ends of the insulating support posts 10, and each flange 60
Is fixed with bolts or the like to fix the end of the metal frame F31 to the insulating support 10 via the flange 60. Further, the end of the thyristor module M31 is connected to the collar 70 fixed to the insulating support 10. In this case, since the metal frame F31 and the thyristor module M31 are both fixed to the insulating column 10, the strength is increased as compared with the fixing method of FIG.

In a third method, as shown in FIG. 7, a thyristor module M31 is fixed to a metal frame F31.
The end of the metal frame F31 is connected to a collar 70 fixed to the insulating support 10, and the flanges 60 attached to the end of the insulating support 10 are fastened with bolts or the like to connect the end of the metal frame F31 to the collar 70. Is fixed to the insulating support post 10 via.

In a fourth method, as shown in FIG. 8, a thyristor module M31 is fixed to a metal frame F31.
The end of the metal frame F31 is connected to the collar 70 fixed to the insulating post 10, and the end of the thyristor module M31 is connected to the collar 70 fixed to the insulating post 10.
And the flanges 60 attached to the ends of the insulating posts 10 are fastened with bolts or the like, so that the ends of the thyristor module M31 and the metal frame F31 are respectively connected to the collar 7.
And fixed to the insulating column 10 via the “0”. In this case, since the metal frame F31 and the thyristor module M31 are both fixed to the insulating column 10, the strength is increased as compared with the fixing method of FIG.

On the other hand, in the case of a thyristor module that is not fixed to the split-type metal frame, as shown in FIG. 9, the end of the thyristor module Mi is directly connected to the collar 70, and is fixed to the insulating support 10 via the collar 70. be able to.

[0035]

As described above, according to the present invention,
Since at least one thyristor module of the plurality of tiered thyristor modules is integrally connected to the metal frame, and the metal frame is divided for each thyristor module and separated from each other, the installation space can be reduced. Both can contribute to downsizing of the thyristor valve.

[Brief description of the drawings]

FIG. 1 is a perspective view showing a first embodiment of the present invention.

FIG. 2 is a diagram for explaining a difference between the first embodiment and a conventional example.

FIG. 3 is a perspective view showing a second embodiment of the present invention.

FIG. 4 is a perspective view showing a third embodiment of the present invention.

FIG. 5 is a view for explaining a first fixing method of the split-type metal frame.

FIG. 6 is a view for explaining a second fixing method of the split-type metal frame.

FIG. 7 is a view for explaining a third fixing method of the split-type metal frame.

FIG. 8 is a view for explaining a fourth fixing method of the split-type metal frame.

FIG. 9 is a view for explaining a method of fixing the thyristor module.

[Explanation of symbols]

F1 Upper metal frame F2 Lower metal frame F3, F3, F4 Intermediate metal frame F31-34, F51-54 Intermediate metal frame M11-14, M21-24, M31-34, M41-
44 Thyristor module 10 Insulating column 51, 52 Insulating member 60 Flange 70 Collar

 ──────────────────────────────────────────────────続 き Continuing on the front page (72) Inventor Tanaka Main Tax 3-1-1, Sachimachi, Hitachi-shi, Ibaraki Hitachi, Ltd. Inside the Hitachi Plant (72) Inventor Masahiko Inoue 502, Kandatecho, Tsuchiura-shi, Ibaraki Co., Ltd. Hitachi Machinery Research Laboratory (72) Inventor Katsunori Asano 3-3-22 Nakanoshima, Kita-ku, Osaka-shi, Osaka Inside Kansai Electric Power Company (72) Inventor Takateru Hashimoto 2-5 Marunouchi, Takamatsu City, Kagawa Prefecture Shikoku Electric Power Company (72) Inventor Hiroyuki Arokawa 6-15-1, Ginza, Chuo-ku, Tokyo Inside Power Supply Development Co., Ltd. (56) References JP-A-6-178541 (JP, A) JP-A-7-203680 (JP, A JP-A-7-75338 (JP, A) JP-A-7-87742 (JP, A) JP-A-7-176686 (JP, A) JP-A-2-84068 (JP, A) JP-A-7-76 18 3452 (JP, A) JP-A-7-335827 (JP, A) JP-A-7-176687 (JP, A) JP-B-59-3114 (JP, B2)

Claims (9)

(57) [Claims] A thyristor element and a peripheral circuit for driving the thyristor element are mounted and arranged in a plurality of stages.
Comprising a plurality of thyristor modules, a plurality of insulating pillars for supporting respectively the thyristors module, and a plurality of metal frame supporting the respective insulating pillars are coupled to each isolation strut, at least one of the plurality of thyristor modules thyristor valves coupled together to Sai Rita module metal frame of one stage. 2. A thyristor element and a peripheral circuit for driving the thyristor element are mounted and arranged in a plurality of stages.
Comprising a plurality of thyristor modules, a plurality of insulating pillars for supporting respectively the thyristors module, and a plurality of metal frame supporting the respective insulating pillars are coupled to each isolation strut, said thyristor modules in each stage a plurality Pieces
Are arranged divided into at least one stage each site Rita modules are coupled together in a metal frame, the metal frame integrated with the thyristor modules split metal frame among the plurality of stages of thyristor modules
Thyristor valves which are arranged separately from each other . 3. A thyristor element and a peripheral circuit for driving the thyristor element are mounted and arranged in a plurality of stages.
A plurality of thyristor modules, a plurality of insulating pillars for supporting respectively the thyristors module, an upper side metal frame connected to the upper side of the insulating support rod, a lower side metal which is connected to the lower side of the insulating support rod comprising a frame and a middle metal frame connected to the middle of the insulation <br/> edge struts, wherein at least one stage rhino Rita module of the plurality of thyristor modules together in an intermediate metal frame the combined to have a thyristor valve. 4. A thyristor element and a peripheral circuit for driving the thyristor element are mounted and arranged in a plurality of stages.
A plurality of thyristor modules, a plurality of insulating pillars for supporting respectively the thyristors module, an upper side metal frame connected to the upper side of the insulating support rod, a lower side metal which is connected to the lower side of the insulating support rod comprising a frame and a middle metal frame connected to the middle of the insulation <br/> edge struts, before Symbol thyristor modules in each stage divided into a plurality
Are arranged Te, said plurality of stages at least one stage each site Rita modules of the thyristor modules are coupled together to an intermediate metal frames, intermediate metal frame integrated with the thyristor modules split metal
Thyristor valves which are arranged separately from each other as frames . 5. The thyristor valve according to claim 2 , wherein the metal frames integrated with the thyristor module are connected to each other via an insulating member. 6. A thyristor integrated with a metal frame.
Modules are connected to insulating posts via metal frames
And which claims 2,4, or 5 thyristor valve according. 7. The metal frame is provided via a flat collar.
7. The thyristor valve according to claim 6 , wherein the thyristor valve is connected to an insulating post . 8. A thyristor integrated with a metal frame.
The module is connected to the insulating posts with the metal frame
Claim 2, 4 or 5 a thyristor valve according to have. 9. The metal frame and the thyristor module
9. The thyristor valve according to claim 8, wherein each of the thyristor valves is connected to the insulating support via a flat collar .