• 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 static electrical converter, preferably for high voltage, has at least one valve assembly each having a single valve or a plurality of electrically series-connected valves. The valve assembly is provided with suspension members at its upper end, so that the valve assembly can be suspended from a supporting structure.
    公开号:SU1405711A3
    申请号:SU802899197
    申请日:1980-03-27
    公开日:1988-06-23
    发明作者:Эрик Олссон Карл
    申请人:Асеа Аб (Фирма)；
    IPC主号:
    专利说明:

    The invention relates to electrical engineering and can be used in static converters for high voltage direct current transmission, capable of holding mechanical loads associated with earthquakes, and in the case of installing them on ships.
    The aim of the invention is to simplify the design and increase the strength.
    FIG. 1 and 2 show an embodiment of the proposed converter; in fig. 3 is an electrical circuit for switching the converter; Fig. 4 shows the design of the valve 9 to the converter; in fig. 5 is a section A-A in FIG. 4j in FIG. 6 and 7 are a circuit for inserting an oscillatory motion damping device into the valve block; in fig. 8 is a diagram of the inclusions between the valve blocks when the valve blocks are rigidly fastened to each other; FIGS. 9- cxetjia of connecting dampers; in fig. 10 and 11 show a second embodiment of the proposed converter 5. In FIG. 12-14 - suspension device; in fig. 15-16 - implementation of the valve blocks of the Converter according to the second option.
    The converter contains six valves 1-65 which are connected in two (valves 1 and 45 3 and 6 | 5 and 2) and form three valve blocks of the converter. Each valve block forms a vertical rack with valves in the block one above the other. The entire valve block is fastened to the crossbar 7 with the help of suspension insulators 8.1, 9 and 10. The crossbar is attached to the racks 11.1, 11.2 and 12s whose upper ends are connected together by the crossbars 13 and 14. The valve located below each is fastened to the valve above. Thus, the valves are subject only to tension, which ensures the simplicity and efficiency of the design of the valve.
    The upper ends of the valve blocks have contact points 15.1, 15.2, 16.1 and 16.2, which are connected via connecting lines 15 and 16. The lower ends of the blocks also have contact points 17.1, 17.2, 18-1 and 18.2, likewise connected together by lines 17 and 8. Top the end of the fan 5 has an insertion point 19.1, in
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    which line 19 is attached and which constitutes one of the DC terminals of the converter. The lower end of the valve 2 also has a contact point 20.1, to which line 20 is attached and which is the second DC terminal of the converter,
    Transformer 21 has three phase outputs9 which are connected by lines with three pins 22-24 (connecting points) of the alternating current of the converter. The transformer connector 25 is connected to pin 24 via line 26 (FIG. 2).
    To suppress oscillatory movements of the valve blocks, damping elements 27 and 28, for example a hydraulic damper, are installed between their Bottom ends,
    The converter (Fig. J) represents a three-phase thyristor bridge, in which gates 1-6 form six branches of the bridge.
    The transformer 21 of the converter has R, S, and T contacts for connecting to a three-phase AC network or other AC sources, the output (end of the circuit) of the transformer has three terminals, which are connected to the AC contacts 22-24 of the bridge. The upper DC terminal of the bridge is designed to be connected with respect to the earth electrode through line 19, and the lower ends of the valve blocks, therefore, have a lower OTHOcHTfMibHO earth voltage,. Therefore, suspension insulators 8.1, 9 and 10 should only respect the dimension dl; low voltage, and if possible they can be completely eliminated. The lower DC terminal of the bridge has a high voltage relative to earth and is intended to be connected via a line 20 to a DC cable or conductor. Since the lower ends of the blocks are fixed (suspended) freely, it is not necessary for any of the insulators to observe the dimensions for the specified high voltage, it is only necessary to ensure that the distance between the lower ends of the blocks and the surrounding objects at the relative potential of the framework of the foundation 29 is large enough.
    The foundation 29 may be unpaved, of a special kind or, in the case of marine equipment, the deck of ships.
    To hang the valve block (Figs. A and 5), a frame or plate 30, which has the same dimensions as the valve in cross section, and a fastening eye 31, fixed to the frame, are provided at the upper end of the valve. Eight vertical partitions 32-39 are fixedly attached to the frame 30 with their upper ends. The partitions are made of an electrically conductive material, for example plates of a glass fiber. The lower ends 40-43 of the partitions are made with locking elements for fastening the respective eight valve crossbars (four of them are crossbars 44-47 shown in Fig. 4, the location of the other four corresponds to the location of the partition 32-35 shown in Fig. 5).
    Between the bulkheads 34 and 36, one or more liners 48 are fixedly mounted, and between the bulkheads 35 and 37 there are spacers 49.
    Valve 1 contains twelve thyristor modules (modules 50-54 are shown in Figures 4 and 5). Each module is a mechanically self-supporting node and includes, for example, four successively connected thyristors with auxiliary units (control and display circuits, voltage dividers, etc.) —The modules are arranged in two units (for example, modules 53 and 54) at the same level and opposite sides of the valve. The modules protrude onto vertical partitions and fasten to them, for example, with the help of bolts. Thus, the modules are supported by vertical baffles 32-39 and at the same time make the entire structure of the valve rigid.
    As can be seen from FIG. 5, two modules located at the same level are connected on the left side relative to the current conductor 55. Module 54 is connected on the right side of conductor 56 to a module located below module 53. The latter is connected on the right side by conductor 57 to a module located above module 54. Thus, the current passes through the valve-unit in a spiral from the lowest located module valve block to its highest module.
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    Valve 4 is designed in the same way as valve 1, i.e. It has eight vertical partitions (crossbars), four of which (crossbars 44-47). made of, for example, laminated glass fibers that support twelve thyristor modules (modules 58-61 are shown in FIG. 4). The upper ends of the partitions are designed as fixing elements 62 and 63 for directly fixing the respective partitions (crossbars) of the valve 1. The frame, similar to the frame 30, is not visible.
    Thus, the valve block is made up of two sections arranged one above the other, each section consisting of one valve. Dividing a block into one or more sections may be performed in various ways, for example, each section may consist of one or more gates.
    Each valve or section may be provided with a device (not shown -), for example, a control or indication, wherein said device is common to several modules.
    Each valve block is suspended (attached) in such a way that it can freely oscillate (with small oscillatory movements). However, the valve block is equipped with damping elements for damping oscillatory movements relative to other valve blocks (Fig.)) Or relative to the foundation. To suppress oscillations relative to the foundation, dampers 64 and 65, for example, of the hydraulic type (FIG. B) can be installed so as to connect foundation 29 and the valve block 1.4 through a conductor of insulators 66 and 67 at the lower end of the valve block.
    To dampen the oscillatory movements (Fig. 7), the valve block is fastened from the pit 68 attached to the crossbar 7. Two shock absorbers 69 and 70 are attached to the rail 68, their elements may be pneumatic and / or hydraulic, possibly in combination with mechanical springs. The valve block is fastened from shock absorbers 69 and 70 through suspension insulators 8.1 and 8.2, which are fixed rigidly to the lugs 31.1 and 31.2.
    As a result, oscillatory movements are quenched with the simultaneous occurrence of the elasticity of vertical actions (forces) and the quenching of oscillatory movements. The device (Figs. 6 and 7) suppresses oscillatory movements only in one plane, but it can be doubled so as to carry out the suppression of each movement regardless of its direction,
    To prevent free movement of each valve block, valve blocks can be connected to one another (Fig. 8) in such a way that they appear as a rigid structure. This is achieved by connecting three valve blocks, for example, the lower ends with rods 71 and 72. The rods can be connecting leads between the valve blocks (lines 17 and 18 in Fig. 1). As one of the options, in addition to the rods 71 and 72, special connecting conductors 17 and 18 can be installed (represented by the dashed line in FIG. 8).
    The damping elements 27 and 28 installed between the blocks (Fig. 1) can be simultaneously implemented as contacts between the blocks. The valve blocks can be connected by means of metal rods 73 and 74 and a damper 75, which form electrical contact between the blocks. If the path through which the current passes through the damper is interrupted (blocked) by a layer of non-conducting material, the damper can be closed using line 76 ,.
    The valves of the blocks are mainly subjected only to voltage to break,
    The valves can be fastened (tensioned) with the help of through vertical partitions made of laminated fiberglass such as} which are relatively not susceptible to bending, rotation (swinging) and other deformations. Thus, the suspended valve block forms a strong and somewhat rigid structure. which gives the block a very high resistance to the effects on it caused by oscillations of the element (point) to which the block of the sti base of the converter is attached.
    Dampers and resilient elements for (hanging) fastening of valve blocks result in significant amounts;
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    reduction of mechanical stresses per unit. When elements with a sufficiently high degree of rigidity and suitable damping are performed, the oscillations of the valve block caused by oscillations of the converter base, can be significantly reduced.
    The heavy, bulky, and expensive supporting insulators used in the known valve block designs are completely absent in the proposed converter.
    In known valve block designs, it is usually necessary that each valve contain a lower frame and supporting insulators mounted on this frame and supporting the upper frame. Supporting elements for straighteners are installed between the upper and lower frames. Each valve with its lower frame is located on the upper frame of the valve located below it. The frames of the two valves that lie opposite each other can be replaced with a common par my.
    These frames are almost completely absent in the proposed Converter. Only at the upper end of the highest valve of each valve block it is necessary to install the frame 30 (Fig. 4).
    Twelve-pulse converter. (Fig. 10 and 11) is installed in building 77 and has three four-section valves. The first four-section valve consists of four series-connected direct current valves 78-81, the second four-section valve is made of valves 82-85, and the third is made of valves 86-89. The valves are fixed with insulating rods made of glass fiber reinforced plastic and supported by horizontal partitions 90-93 in the roof of the building. Valves 86-89 are attached to eight insulating rods (in FIGS. 10 and P, only five of them are rods 94-98), which are rigidly attached to metal sheet 99. The plate is suspended from shock absorbers and elastic elements 100-107. These elements are supported by transversely arranged partitions 108-111, installed between partitions 92 and 93. The other two sections of the four-section valves are attached in the same way.
    The upper and lower ends of the four-section valves and their middle are connected to one another by lines 112-117. Thus, valves 78, 79, 82, 83, 86, and 87 form an upper three-phase bridge, and valves 80, 81, 84, 85, 88, and 69 form a lower bridge, with two bridges connected in series at the terminals of the direct current. The upper end of the four-piece valve is connected to the direct current line 1 18, and the lower end is connected to the direct current terminal 119. These contacts may consist of LII or other rigid connecting elements 120, as in the case of six alternating current contacts (Fig. II).
    Each four-piece valve.
    thus, it is free to move; 20 31 are shown in FIG. 15 and 16). Hold on base 29 and building 77 and on other gates. Vertical movements and oscillatory movements of the recis valve are made of glass fiber reinforced plastic, have a screw thread along the entire length and are fitted with nuts over the upper frame and below.
    and damping elements provide suppression of valve oscillations.
    Four-section valve (Fig.15 and 16) consists of a large number of Rus. Each Rus contains two thyristor modules 12 and 122, which are surrounded by an electrostatic screen. The valve has an upper 123 and lower 124 frames that are surrounded by electrostatic screens 125 and 126. Lower: The ends of the insulating suspension rods 94-98 are fixedly attached to the upper frame 123, for example, by means of a frame having nuts that are screwed onto the threaded ends rods. The thyristor modules and the bottom frame 1 24 are supported by eight of them (five of which — the rods 127 — are made of glass-fiber reinforced plastic, have a screw thread along the entire length, and are equipped with nuts over the top frame and below the bottom
    thirty
    35
    40
    77 buildings are accepted by the -frame. Thyristor modules are, for example, damping elements 100-107. The horizontal movements of the valve are received by bending the stationary insulating suspension rods 94-98. Thus, each valve is illuminated (fixed) motionless regardless of the oscillations of the foundation 29 and the building 77. Therefore, the mechanical stresses on the valves are significantly reduced.
    When fastening the valve in the building (Fig. 12-14), the damping elements 100-107 are located on transverse partitions 108-111, which, in turn, are supported by partitions 92 and 93. Each damping element is connected to the metal plate 99 by means of rod The plate supports eight insulating rods (five of which are rods 94-98 are shown in Figs. 10 and 11) to which the valve is attached. The rods may be provided with grooves, channels or screw threads to increase the electrical leakage path in the longitudinal direction of the rods. Each damping element may consist of a combination of spring elements absorbing the action of forces (mechanical, springs or gas suspensions) and shock absorbers (for example, hydraulic shock absorbers). Due to the elasticity (elasticity), a significant reduction in the effect of the force on the valves is achieved.
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    ears that are not attached to the HbL rods with nuts. The threading gives the rod a grooved surface. This increases the current path through the rods, which significantly reduces the height of the valve. The distance between the thyristor modules can be easily adjusted to the value that passes for the required operating voltage.
    The electrical contacts between the thyristor modules are made in such a way that all the thyristor modules of the valve are connected in series (Fig. 4).
    In the second embodiment, the converter (Figs. 10-16) provides a simple and advantageous solution for the design and mounting of valve blocks. A significant practical and economic benefit is achieved by reducing the size, simpler design and increasing mechanical strength.
    The invention is applicable to arbitrary type converters having an arbitrary number of phases and fan blocks. Thus, the proposed converter may consist, for example, of a DC converter or of two non-parallel connected valves for switching on and off the AC load. Rectification elements
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    5 her frame. Thyristor modules have
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    ears that are not attached to the HbL rods with nuts. The threading gives the rod a grooved surface. This increases the current path through the rods, which significantly reduces the height of the valve. The distance between the thyristor modules can be easily adjusted to the value that passes for the desired operating voltage.
    The electrical contacts between the thyristor modules are made in such a way that all the thyristor modules of the valve are connected in series (Fig. 4).
    In the second embodiment, the converter (Figs. 10-16) provides a simple and advantageous solution for the design and mounting of valve blocks. A significant practical and economic benefit is achieved by reducing the size, simpler design and increasing mechanical strength.
    The invention is applicable to arbitrary converters having an arbitrary number of phases and fan blocks. Thus, the proposed converter may consist, for example, of a DC converter or of two non-parallel-connected valves for switching on and off the AC load. Rectification elements
    Each converter gate can be selectively composed of thyristors or Diodes and of combinations of such ITOB elements.
    I The proposed converter may consist of two or more serially connected bridges, the number of valves of each valve block then reaches four or more.
    The converter contains a special support for mounting valve blocks. If sufficiently strong or reinforced roofs or decks (for marine equipment) are used, the use of such a stand can be dispensed with, and valve blocks are fixed from the roof or deck, or from other structures.
    The valve block (Figs. 1 and 4) is attached to one eyelet and one suspended insulator. As one of the options, the suspension element of each valve block can be double or multi-link to increase reliability and prevent rotational oscillations of the block.
    One end of each block (Fig. 3) is located relative to the ground potential or has a low voltage relative to the ground. This end is set so as to face upward, which significantly reduces I need for electrical insulation of the suspension elements of the unit. I The valves shown in FIG. 4 and 16 I are examples, other embodiments are possible. Thus, the number of modules may differ from the one presented. In addition, more than or less than two modules can be installed at each level. The number of vertical partitions, their structure and the material from which they are made may also differ.
    The damper device for suppressing oscillatory movements can be fixedly fixed to the vertical, movably fixed to the valve block at one or several corresponding points that should not be placed on the base of the block.
    Damping elements to suppress oscillations relative to the foundation can be combined with elements to suppress relative movements (oscillations) between the blocks or with elements that the blocks are rigidly connected to each other.
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    In order to suppress oscillatory movements, it is possible to make not only electrical contacts between valve blocks, but also (or as one of the variants) external contacts.
    Auxiliary connectors (cables, hoses, pipes, light guides, etc.) for cooling and adjusting the ventilation unit for indicating signals can be connected to the upper or lower end of the unit, or, if possible, to the edge of the unit.
    权利要求:
    Claims (8)
    [1]
    1. A static converter for high-voltage DC power transmission, comprising at least one valve manifold, made up of one or a plurality of series-connected gates, insulating elements and a supporting structure, characterized in that
    in order to simplify the design and increase the strength, it is provided with a suspension means disposed between the supporting structure and the upper end of the valve block, by means of which the valve block is suspended from the supporting structure, the suspension means containing said insulating elements and elastic means providing relative movement of the valve block and the carrier constructions in the vertical direction
    [2]
    2. A transducer according to claim 1, characterized in that elongated electrically insulating rods are used as insulating elements, the lower ends of which are attached to the ventilation unit and their upper ends to the elastic means mounted on the supporting structure.
    [3]
    3. The converter according to claim 2, characterized in that the ynpyroi means are additionally equipped with a shock absorber for damping oscillations of the valve block and the suspension means relative to the supporting structure.
    [4]
    4. Converter in PP. 1 and 2, characterized in that it includes additional damping means for mechanically connecting the valve blocks to each other.
    [5]
    5. The converter according to claim 1, characterized in that elect0
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    The tangible connections of the valve block are designed to be free to move relative to the supporting structure.
    [6]
    6. The transducer according to claim 2, characterized in that the elongate, non-volatile electrical insulating rods are made of glass fiber reinforced plastic.
    [7]
    7. The transducer according to claim 1, about t - that is, yen //////////////////////////////////// ///// ///
    29
    The sturdy block is equipped with additional valve modules and additional electrically insulated suspension bearing rods located in the longitudinal direction of the valve block, the modules being connected to the rods ..
    [8]
    8. The converter according to claim 7, about t - characterized in that the suspension rods are made of glass fiber reinforced plastic.
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    Compiled by 0. Nakazn 1Ya Editor 0. Yurkovetskaya Tekhred L. Serdyukova Corfector M. Vasilyeva
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    同族专利:
    公开号 | 公开日
    GB2050082A|1980-12-31|
    US4318169A|1982-03-02|
    IN153807B|1984-08-18|
    SE7902706L|1980-09-28|
    FR2452853A1|1980-10-24|
    DE3010294A1|1980-10-09|
    ATA156880A|1983-09-15|
    JPS55131276A|1980-10-11|
    CH656265A5|1986-06-13|
    GB2050082B|1983-08-03|
    SE445003B|1986-05-20|
    DE3010294C2|1984-07-19|
    AT374632B|1984-05-10|
    CA1113597A|1981-12-01|
    FR2452853B1|1984-04-13|
    JPS6052667B2|1985-11-20|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    RU2497263C2|2007-11-30|2013-10-27|Спал Аутомотиве С.Р.Л.|Rotating electric machine, and its assembly method|
    RU2668555C1|2015-05-28|2018-10-02|Нр Электрик Ко., Лтд|Converter valve|DE644063C|1937-04-23|Koch & Sterzel Akt Ges|Dry rectifier with rectifier elements for high voltage combined into one or more packages or columns|
    US1694151A|1926-07-16|1928-12-04|Harry F Waite|Rectifying system|
    GB511113A|1937-11-05|1939-08-14|Philips Nv|Improvements in or relating to systems for the production of direct currents at high tension|
    US2322457A|1941-07-28|1943-06-22|Homer C Lanctot|Sliding door operating and latching device|
    US2989579A|1955-02-28|1961-06-20|Gen Electric|Electrical distribution system|
    US3184646A|1960-06-06|1965-05-18|Int Rectifier Corp|High voltage rectifier stack|
    US3258651A|1963-02-23|1966-06-28|Arrangement of oil-cooled apparatus for high voltages |
    US3358220A|1964-04-27|1967-12-12|Asea Ab|Suspended capacitor banks to minimize leakage current paths|
    DE1563403B2|1966-09-15|1977-02-17|Siemens AG, 1000 Berlin und 8000 München|CONTROLLED HIGH VOLTAGE INVERTER|
    CH469396A|1968-02-12|1969-02-28|Bbc Brown Boveri & Cie|Converter arrangement with several converter valves connected in series|
    CA944853A|1970-11-30|1974-04-02|Nishin Electric Company Limited|Suspension type electric apparatus having a plurality of radially disposed buffer devices|
    SU656559A3|1975-08-25|1979-04-05|Сименс Аг |Twelve-phase rectifying unit|JPS5722305A|1980-07-16|1982-02-05|Tokyo Shibaura Electric Co|Ac/dc conversion station|
    JPS59231857A|1983-06-14|1984-12-26|Toshiba Corp|High-tension thyristor valve|
    SE436958B|1983-06-16|1985-01-28|Asea Ab|STRUCTURES INCLUDING AT LEAST ONE VALVE CHAIN DESIGNED TO BE ASSEMBLED|
    DE3404076A1|1984-02-06|1985-08-08|Siemens AG, 1000 Berlin und 8000 München|DC SHORT COUPLING|
    IN169518B|1987-07-13|1991-11-02|Siemens Ag|
    SE464492B|1989-08-16|1991-04-29|Asea Brown Boveri|ARRANGEMENT OF VALVE STACK PUTS HIGH VOLTAGE DC IN A VALVE HALL|
    SE9001436L|1990-04-23|1991-10-24|Asea Brown Boveri|STROEMRIKTARANLAEGGNING|
    GB2291074B|1994-06-30|1998-04-15|Gec Alsthom Ltd|Static electrical converter arrangement|
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    SE520788C2|1997-03-24|2003-08-26|Abb Ab|VSCconverter|
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    US6194851B1|1999-01-27|2001-02-27|Hy-Security Gate, Inc.|Barrier operator system|
    CN101297457B|2006-01-20|2011-08-10|Abb技术有限公司|A converter|
    EP3066685B8|2013-11-05|2020-08-05|ABB Power Grids Switzerland AG|Ground system for high voltage semiconductor valve|
    WO2016119843A1|2015-01-29|2016-08-04|Abb Technology Ltd|Valve unit with holding structure for hvdc applications|
    CN106348189B|2016-11-04|2017-10-10|国网山东省电力公司潍坊供电公司|The special lifting formula stand arrangement in power distribution station|
    EP3613266A1|2017-05-31|2020-02-26|ABB Schweiz AG|Suspension arrangement and high voltage system|
    CN212677566U|2017-08-28|2021-03-09|西门子股份公司|Converter branch of modular multilevel converter and modular multilevel converter with same|
    法律状态:
    优先权:
    申请号 | 申请日 | 专利标题
    SE7902706A|SE445003B|1979-03-27|1979-03-27|STRUCTURES INCLUDING AT LEAST ONE VALVE CHAIN DEVICE FOR HANGING MOUNTING|
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