• 专利附录
  • 专利说明
  • 权利要求
  • 类似技术
  • 同族专利
  • 引用文献
  • 法律状态
  • 优先权
    • 专利摘要:
    A gas-insulated thyristor arrangement with at least one thyristor column which is constructed of disk-type thyristors and is arranged, together with its associated drive and external-circuit modules, in a rotationally-symmetric shield which is fastened via at least one insulating standoff to the pressure tube of an electrically conductive pressure encapsulation. One end of the pressure tube is closed off by an end plate integrally formed therewith in the manner of a tank and the other end is closed off by means which includes at least one bulkhead of insulating material. The entire arrangement is filled with gaseous SF6 under pressure and detachable electrical connecting leads are extended through the bulkhead.
    公开号:SU852187A3
    申请号:SU772458704
    申请日:1977-03-03
    公开日:1981-07-30
    发明作者:Рамейл Вилфрид；Шраудольф Манфред；Тиле Герд
    申请人:Сименс Аг (Фирма)；
    IPC主号:
    专利说明:

    The invention relates to electrical engineering, and in particular, to modules of the high voltage direct current converter, for example, in high voltage direct current transmission installations. - modules of valve converters of current are known, in which control units and mounting blocks are electrically connected to groups of series-connected thyristors Such modules have air or oil insulation, air liquid cooling or gas cooling. When using such modules in high voltage direct current transmission installations in a number of areas, it is necessary to reduce the dimensions to save space. For production and technical reasons, for valve current transducers with fully closed valves, valves with a grounded capsule can be applied. This requirement is fulfilled with oil-insulated valves, in which the thyristor columns are installed in a tank filled with oil. However, the use of oil as a combustible medium for safety purposes is often excluded. In addition, during the repair, the tank must be opened, for which the installation is turned off for a long time, which creates considerable inconvenience in operation. The closest technical solution to the present invention is a valve current converter module containing at least several thyristor columns, which, together with the corresponding control units and at least part of the corresponding switching units, are surrounded by a curved metal screen placed on electrical insulating supports, electrically connected to it and placed in tightly sealed and filled with pressure SFj gas, a cylindrical pressure pipe in which through partitions of electr the insulating material is hermetically injected electrically. These pins are detachably connected to the electrical outputs of the thyristor columns, while the thyristors, along with the radiators located between them, which are partly of the current leads, are held in the column by means of a spring 2. In a known device, a pressure pipe is connected on both sides through
    sealing surfaces with partitions, which leads to large lengths of sealing of such surfaces, which complicates the sealing of the module, and also complicates its installation.
    The purpose of the invention is to simplify the sealing of the module and its installation.
    The goal is achieved by the fact that in a module of a gate converter, which contains at least several thyristor columns, which, together with the corresponding control units and at least part of the corresponding digital switching blocks, are surrounded by a curved metal screen, are electrically connected to it and placed hermetically-closed cylindrical pressure pipe filled with pressure Sf gas, into which, through partitions of electrically insulating material, Electric leads that are detachably connected to electrical terminals of thyristor columns, while the thyristors together with radiators located between them, which are partially current leads, are retained in the column — are spring-loaded; the pressure pipe is a one-piece casing with one convex end surface and the other side is hermetically and detachably connected to the node element, in the walls of which two partitions are made of electrically insulating material, which are electrically removed. ode, connected to electrical terminals, the output of the conductive housing. Two partitions in the node element are located along the same axis.
    In addition, the electrical leads in the node element have a bend, which is surrounded by an electrical conduction screen, electrically connected to one short-circuit electrical leads.
    The screen is spherical and mounted on one of the electrical leads after it is bent from the side of the partition and has an opening through which the second lead after its bend is drawn.
    Inside the screen there is an additional electrically conductive screen in the form of a spherical segment, which shields the second electrical output, rests on it and is electrically connected to it.
    In addition to the It-oro, the nodal element is made with tubular pipes, closed, 1, and partitions of electrically insulating material.
    Moreover, the tubular nozzles and electrical leads, derived through the nozzles, are connected to the elbows and electrical leads of the node elements of adjacent modules.
    In interconnected pipe fittings, only
    one partition, common to two adjacent node elements.
    The common partition has a mechanical detachable connection with tubular nozzles of adjacent subassemblies.
    In addition, in the region of the detachable connection of the casing and the node, a plug connection is made for each electrical output, and the node element is made of synthetic material and at least one of its surfaces is metallized.
    FIG. 1 shows a module, a section, in FIG. 2, the same, section A-A in FIG. 1, in FIG. 3 shows the construction of a part of a current converter valve consisting of several adjacent modules.
    The module contains a thyristor column
    1 consisting of disk thyristors
    2, on each side of which a cooling radiator 3 is pressed. In this exemplary embodiment, a thyristor column 1 cooled by liquid is presented. Pipeline 4 provides refrigerant to cooling radiators 3. In addition, gas cooling radiators can be installed, and sulfur hexafluoride gas S.F can be used as a gaseous cooling medium. Mounted on each other disk thyristors
    2 and the cooling radiators 3 are fixed by means of the insulator 5 and the clamping element 6 on the frame - the stand 7
    The cooling radiators 3 at both ends of the thyristor column are connected by wires 8 to electrical leads 9. To each disk thyristor 2 there corresponds, if necessary, a control and mounting unit 10, which in this case is located next to the thyristor column 1.
    The thyristor column 1 and the blocks 10 are surrounded by an electrically conductive screen 11, symmetric about the axis of rotation, which is a cylinder, closed on one side of the end with a convex surface. This boiler screen 11 may be made of metal or synthetic material, the inner and / or outer surface of which is coated with metal. A synthetic polyester resin can be used as a synthetic material. In the exemplary embodiment, a metal screen 11 is presented, on which each of the conductors 8 and 9 is separately fastened. Thus, the sample metal screen 11 is used to supply a current, and the support 12 also serves.
    权利要求:
    Claims (12)
    [1]
    Through the support 13, which, for example, can be a plastic resin column, the screen 11 is fixed in an electrically conductive pressurized pipe 14 "The discharge pipe 14 can be made of metal, for example steel, aluminum or copper.  In this case, the pressure pipe 14 is made.  for example, glass fiber reinforced unsaturated polyester resin, and its outer surface is metallized and can be grounded.  When using such a plastic pressure pipe, tightness can be increased and weight can be reduced, and the manufacturing cost is lower than the cost of the same metal pipe.  The pressure pipe 14 is filled with sulfur hexafluoride gas S (.  The boiler-shaped design of the tube 14 has an advantageous geometry for the TLGT so that the internal pressure of the thyristor device can be perceived and a thin wall thickness can be calculated at a pressure of 2 to 3 bar, at which the insulating gas (hexafluoride sulfur) fills the device. mounted on the convex end surface of the hermetic pipe 14, Of course, there can be several supports 13, which I mainly create. t a support between the part of the screen 11 and the pipe 14 symmetrical about the axis of rotation.  The proposed design is particularly suitable for a vertically arranged pressure pipe 14, in which the screen 11 is fixed and the thyristor column suspended or standing in it.  For mounting, in which the screen 11 and the thyristor column 1 are mounted vertically, a self-supporting design element is necessary.  For fastening (FIG.  1), in which the screen 11, the thyristor column 1 and the blocks 10 are suspended by means of the support 13, only one support is necessary, as a result of which the amount of insulating solid is significantly reduced.  This gives a significant economic effect.  In addition, with this type of mounting, you can increase the length of the thyristor column and together. This is the number of thyristors that can be attached to the thyristor pack.  It also reduces costs, especially due to the reduction in the number of individual modules that are needed in the design of the current converter valve.  The advantage of the proposed design should also be called easier installation and ease of maintenance, since the pressure pipe can be installed and mounted only in one direction, which can be done, for example, with the help of a light lifting device.  At the open end of the pressure pipe 14 is provided with a flange 15, which. A threaded connection is fixed on the flanges 16 of the node 17, and through the gaskets between the I ring flanges 15 and 16, a reliable hermetic mechanical connection is provided.  In the area of the annular flanges 15 and 16, in addition, a plug connection is provided for the electrical terminals 9, which in the exemplary embodiment is implemented as two contact sleeves 18, through which the terminals 9 are electrically connected to the terminals 19 in the node element 17.  In this case, the contact sleeves 18 can be strengthened either at the terminals 19 or at the terminals 9.  The mounting holes, through which the pins 9 and 19 must be disconnected before removing the pressure pipe 14, are not needed, as a result of which the sealing area is reduced.  The nodal element 16 has an airtight container with two tubular nozzles 20 and 21, which, respectively, are hermetically sealed with partitions 19, which limit the location of the arc, made of electrically insulating material, which can be, for example, casting resin.  Cheree: each limiter 22 hermetically passes the conductor 19.  Like the pressure pipe 14, the node 17 can also be made of the aforementioned metals or synthetic substance.  This example shows a nodal element of synthetic substance, the outer surface of which has a grounded metal layer 23.  How long  The standpipe, as well as the synthetic material knot, can take advantage of the reduced weight and greater tightness.  The pressure pipe 14 and the sealed container of the node 17 form a single gas cavity isolated from the external environment, which is filled under pressure with gaseous sulfur hexafluoride SF (and, moreover, has the advantage that the sealing area in a mechanical connection, for example, flange 15 and 16 It is very insignificant.  In connection with this, the problem of sealing is simplified and, in addition, the installation of the module is simplified and the manufacturing cost is reduced.  The connecting conductors 19 in the node element 17 have a bend 24, respectively, and after the bending, pass through the stops 22 nozzles 20 and 2l which are almost opposite to each other against each other.  The bend 24 is surrounded by a screen 25, which in the exemplary embodiment is ball-shaped and rests on pin 19 after the bend.  For the second terminal 19, a hole 26 is provided in the screen 25, through which the terminals are led outside.  The additional screen 27 in the form of a spherical segment may be located inside the screen 25 for shielding the second conductor 19 on which it rests.  This screen in the form of a spherical segment is shown by a dashed line; Niya (Fig.  one).  Screens 25 and 27 can also be made of metal or synthetic substance.  The example shows a screen 25 made of synthetic material, on the inner surface of which a shielding metal coating is applied.  In the node element 16 inside the spherical screen 25, valve limiting chokes-28 are located for each output.  They are required for RCL mounting of a current converter valve.  In addition, inside the screen 25 between the two conductors 19, a compensating capacitor 29 is turned on, which is necessary for regulating the potential between the successive sections of the current converter valve.  Valve limiting chokes 28 and the compensation capacitor 29 are included in the thyristor device.  This reduces the space required for the transformer valve.  current user and reduced manufacturing costs.  Moreover, valve throttles 28 and compensating capacitor 29 are easily accessible when the pressure pipe 14 is removed from the junction element, 19.  However, it should be noted that valve limit chokes and compensating capacitors can be located in their own hermetic modules, which can be switched on between thyristor devices when necessary.  FIG.  Figure 1 shows the further design capabilities of the thyristor device.  The tubular nozzles 20 and 21, along which the electrical leads 19 pass through the propagation arrestors of the arc 22, are connected to the tubular patches 20 or 21 of the adjacent node element.  In this case, the limiter 22 may be common to both nodal elements, which leads to a further reduction in price.  In addition, both tubular nozzles of adjacent node elements (in FIG.  1 to the left of the located nozzle 20) can be made as one piece or the stopper 22 can be used as a mechanical / detachable connection between the tubular nozzles of the adjacent node elements 17, as shown in.  pipe 21, which is located on the right.  In this case, the limiter 22 is connected to a thread No. 1 with a connection with the annular flange 30 of the tubular nipple 21 of the adjacent node 17.  In the module pipe, there are holes for gas supply and removal, holes for coolant supply and removal, as well as holes through which a light guide can be introduced into the pipe or light is directed, by means of which control pulses are supplied to control units 10.  At least one pipeline 31 is supplied to supply refrigerant through the support 13, which is connected to the pipeline 4.  In addition, a light guide can be introduced through the support 13 into the pressure pipe 14.  There is also a friend option.  From the blocks 10, the light guide 32 goes to the glass lens 33 / mounted tightly in the wall of the pressure pipe 14.  By means of a photodiode (not shown), which can be installed, for example, on the outer wall of the discharge pipe 14, control pulses are supplied to the light guide 32.  Such an implementation has the advantage that sulfur hexafluoride SF. J can be used as insulation for the separation of potentials in the transmission channel of controlled pulses.  As the gas inlet or gas outlet opening in the spherical part of the node 16, a valve 34 is installed.   In the screen 11, two thyristor columns are installed located in a row.  In addition, inside the screen 11 are mounting resistances 35 and mounting capacitors 36.  In this case, the installation resistances 36 can be cooled by means of the pipe 4.  FIG.  2 shows conventionally threaded holes in the annular flange, which are intended for threaded connection of the pressure pipe 14 of the node element 17.  In the construction of a part of a current converter valve (FIG.  3) modules are arranged in series, connected in series.  With the help of such a valve it is possible to create, for example, a branch of a valve converter, a Part. The valve of the current transducer is assembled from several modules.  Moreover, for several node elements 17 TpV64ae pipes 20 are made in one piece, since one combined module 37 is made with several node elements 17.  this combined module 37 still has free access to the individual node elements 17, since there is a common limiter 22 between the node elements.  To the Kremlin, with such a combined module 37, the size of the sealing area is further increased, since the threaded connection is suitable for connecting the adjacent subassemblies on the nipples 21 along the annular flanges 30 and for common restraints, 22 corresponding to several subassemblies 17.  With the help of the described structural elements, the valve of the current converter (Fig. 3) can be assembled into a unified system from a small number of different types of structural elements, which can be manufactured serially.  At the same time various designs of gates can be realized.  In addition, with this module you can get fully sealed, grounded gates of reduced designs.  Pressure pipes 14 with thyristor columns 1 can be replaced without degassing the entire installation, and it is also possible to replace valve restricting chokes and compensation capacitors when removed. pressure pipes 14.  The valve current converter module makes it easy to perform static current transducers of various designs.  It is completely closed and the pressure pipe can be grounded.  This eliminates (with very compact structures) accidents.  Especially since the cylindrical pressure pipe has a suitable geometry to withstand the internal pressure.  In addition, the diameter of the pressure pipe corresponds to the potential of the module, therefore only a small amount of gas is needed.  Due to the arc stop, it is possible to assemble and disassemble the module in a simple way, for which only the module to be replaced must be degassed.  In order to seal the pressure pipe tightly, the node element has an electrically conductive sealed container that is hermetically connected to the open end of the boiler-shaped pressure pipe by a detachable mechanical connection and has at least one hole closed by the restrictor through which at least one electrical outlet is led.  The nodal element 17 forms, together with the pressure pipe 14, a single closed gas cavity.  To service this unit, it is necessary to solve the problem of mechanically connecting the pressure pipe and the node element in the case of removal of the pressure pipe by means of a load-lifting device.  Special mounting holes as a result of this become unnecessary, and the internal cavity of the pressure pipe and the internal cavity of the node element are easily accessible through the corresponding connecting holes. It is preferable to place a valve limiting choke in the vessel of the node element for at least one terminal, and, if necessary, to place the compensation capacitor in the sealed vessel of the node element additionally between the two terminals.  It is advantageous when the valve restrictive dross. Spruce and / or compensation co.  laid inside the ball screen.  Due to this, the structural elements necessary to manufacture a current converter valve from several thyristor devices are connected to a thyristor installation, and valve restricting chokes and a compensation capacitor are freely available for installation and maintenance through the connecting hole of the node element with the standpipe pipe removed.  It is preferable to make holes in the sealed container of the node in the form of a tubular nozzle, which is closed by a limiter for the propagation of the arc through which the electrical lead passes.  The tubular nozzles of several subassemblies and electrical leads passing through the nozzles can be connected to each other when assembling a current converter valve, and it is desirable to provide only one restrictor common to two subassemblies in interconnected tubular nozzles; be made between the tubular nozzles and two key elements in the form of a mechanical detachable connection.  With such a design, it becomes possible to assemble, with a simple method, current conversion valves with a module, which, for example, can form a branch of a static current converter.  In addition, several node elements or combined modules form a block, and the adjacent node elements have common arc propagation limiters.  Due to the connecting holes of the node elements or their sealed containers, the interior of this node composed of several node elements is accessible and the installation and maintenance of the current converter valve is simple.  Preferably, the shield, symmetrical about the axis of rotation, located in the pressure pipe, is terminated on one side with an end sheet.  Advantageously, with this design, only the end sheet of the screen symmetrical about the axis of rotation is fixed through an insulating support on the end surface of the standpipe.  This accomplishes the arrangement in which the thyristor table is suspended in the discharge pipe or is self-supporting directly.  The hardness of the insulation, necessary for the supports, will thus be significantly reduced.  Additionally, especially for the suspended position of the thyristor column.  MODULE can be performed with longer thyristor stdlbami, t. e.  with a large number of thyristors.  This leads, mainly for the current rectifier valve, to reduce costs by reducing the required number of thyristor devices according to the invention, or individual modules.  Both the pressure pipe and the hermetic capacitance of the node can be made of artificial materials and on their outer and / or internal surfaces a metal xaic conductive shield can be carried, which can be grounded.  Grounded capsule made of artificial material, made together with this pressure pipe and this sealed container, it can. to be designed for the required internal pressure of two to three bar and made, for example, with inexpensive form-blowing facilities.  This, together with a reduction in costs, results in a significant reduction in weight, since with the required calculation the weight of a pipe made of artificial material is less than the weight of the same pipe made of metal.  In addition, made of synthetic material like napo.  On the pipe, and the node, both of them bake a higher tightness, since the pipes made of synthetic material have welded seams, unlike the corresponding metal pipes.  Additionally, at least one of the screens can be made of synthetic material and a metal layer is applied to its outer and / or inner surface.  The weight and cost of the module will therefore be even lower.  As a synthetic material, fiberglass reinforced polyester resin can be used in this case.  Claim 1.  A valve current converter module, containing at least several thyristor columns, which, together with the corresponding control units and at least part of the corresponding switching units, are surrounded by a curved metal screen placed on electrical insulating supports, are electrically connected to it and placed in a gas-tightly closed and filled with gas. SF cylindrical pressure pipe, into which electrical terminals are helially inserted through partitions of electrically insulating material, detachably connected to the electrical terminals of the thyristor poles, the thyristors together with radiators located between them, which are partly tokopod water, are retained in the pole with a spring / differing in that, in order to simplify the sealing of the module and simplify its installation, the pressure pipe is is a one-piece casing with one convex end surface and on the other hand hermetically and detachably connected to the knotted element, in the walls of which two partitions of electrically insulating mother are placed la, through which a derived electrical leads connected to the electrical terminals, the output of the conductive housing.  
    [2]
    2. Module POP.1, characterized in that the two partitions in the node element are located along the same axis.
    [3]
    3. The module according to claims 1-2, distinguishing and y. With the fact that the electrical terminals in the node, the elements have a bend.
    [4]
    4. A module according to nnil-3, that is, with the fact that the bend of each electrical lead is surrounded by an electrically conductive screen electrically connected to one of the electrical leads. .
    [5]
    5. A module according to claims 1-4, characterized in that the screen is spherical and mounted on one of the electrical terminals after bending it from the side of the partition and has an opening through which the second terminal after the "bend,
    [6]
    6. The module according to claims 1-5, which is based on the fact that inside the screen there is an additional electrically conductive screen in the form of a spherical segment, which shields the second electrical output, rests on it and is electrically connected to it.
    [7]
    7. The module according to PP.1-B, O TL and Chay and the fact that the node element is filled with tubular nozzles, closed, partitions of electrically insulating material.
    [8]
    8. Module on PP. 1 through 7, in that the tubular nozzles and electrical leads, which are connected through the nozzles, are connected to the nozzles and electrical leads of the node elements of the adjacent modules.
    [9]
    9. The module of PP.1-8, which is tricky, in that only one partition is made in the tubular nozzles connected to each other, common to two adjacent node elements.
    [10]
    10. Module; According to claims 1-9, characterized in that the common partition has a mechanical detachable connection with tubular nozzles of adjacent subassemblies.
    [11]
    11. The module of PP.1-10, which is based on the fact that in the area of the detachable connection of the casing and the node the plug is made
    connection for each electrical output.
    12. Module on PP. 1-11, which is based on the fact that the node is made of synthetic material and at least one of its surfaces is metallized,
    [12]
    Sources of information taken into account in the examination
    1. For the sake of Germany 15634СЗ, cl. 21 g 11/02, publ. 1974.
    2. USSR patent application
     2348552 / 18-25, class H 01 L 25/02, 1975 (prototype).
    17
    thirty
    II
    --1H
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    同族专利:
    公开号 | 公开日
    FR2344130B1|1980-02-29|
    DE2609512A1|1978-01-26|
    CA1075370A|1980-04-08|
    JPS52107543A|1977-09-09|
    GB1544064A|1979-04-11|
    SE7701762L|1977-09-09|
    DE2609512C2|1982-11-25|
    SE432322B|1984-03-26|
    ATA975376A|1978-11-15|
    FR2344130A1|1977-10-07|
    BE852099A|1977-07-01|
    JPS5820553B2|1983-04-23|
    AT350668B|1979-06-11|
    US4077057A|1978-02-28|
    引用文献:
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    CH438466A|1966-05-17|1967-06-30|Bbc Brown Boveri & Cie|Spark gap built into a pressurized gas enclosure|
    DE1563403B2|1966-09-15|1977-02-17|Siemens AG, 1000 Berlin und 8000 München|CONTROLLED HIGH VOLTAGE INVERTER|
    US3497726A|1966-12-19|1970-02-24|Westinghouse Electric Corp|Firing circuits for series-connected thyristors|
    DE1914790A1|1969-03-22|1970-10-01|Siemens Ag|Liquid-cooled assembly with disc cells|
    DE2160302C3|1971-12-04|1975-07-17|Siemens Ag|Cooling box for installation in disc cell stacks|
    DE2348207A1|1973-09-25|1975-04-17|Siemens Ag|THYRISTOR COLUMN|WO1981003093A1|1980-04-25|1981-10-29|I Zotov|High-voltage rectifier|
    JPS619107A|1984-06-20|1986-01-16|Mitsubishi Electric Corp|Sealed dc conversion station|
    SE9401184L|1994-04-08|1995-10-09|Asea Brown Boveri|Nested valve device for high voltage and high power|
    CN106663924A|2014-07-16|2017-05-10|Abb瑞士股份有限公司|Valve Unit For Hvdc Power Converter Insulated By Solid Material And Gas|
    法律状态:
    优先权:
    申请号 | 申请日 | 专利标题
    DE2609512A|DE2609512C2|1976-03-08|1976-03-08|Gas-insulated thyristor arrangement|
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