CN204834622U - Flexible valve set spare for direct current transmission and IGBT submodule piece thereof - Google Patents
Flexible valve set spare for direct current transmission and IGBT submodule piece thereof Download PDFInfo
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- CN204834622U CN204834622U CN201520552519.0U CN201520552519U CN204834622U CN 204834622 U CN204834622 U CN 204834622U CN 201520552519 U CN201520552519 U CN 201520552519U CN 204834622 U CN204834622 U CN 204834622U
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- 230000005540 biological transmission Effects 0.000 title claims abstract description 29
- 238000002788 crimping Methods 0.000 claims abstract description 39
- 238000009434 installation Methods 0.000 claims abstract description 34
- 125000006850 spacer group Chemical group 0.000 claims abstract description 13
- 229910052782 aluminium Inorganic materials 0.000 claims abstract description 7
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims abstract description 7
- 229910052751 metal Inorganic materials 0.000 claims description 26
- 239000002184 metal Substances 0.000 claims description 26
- 238000009413 insulation Methods 0.000 claims description 20
- 230000005611 electricity Effects 0.000 claims description 11
- 238000002955 isolation Methods 0.000 claims description 9
- 150000002739 metals Chemical class 0.000 claims description 9
- 239000004411 aluminium Substances 0.000 claims description 6
- 238000000034 method Methods 0.000 description 15
- 238000005516 engineering process Methods 0.000 description 6
- 239000002131 composite material Substances 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 238000003825 pressing Methods 0.000 description 3
- 239000000498 cooling water Substances 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 239000011159 matrix material Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000001413 cellular effect Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 230000008030 elimination Effects 0.000 description 1
- 238000003379 elimination reaction Methods 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 1
- 239000010931 gold Substances 0.000 description 1
- 229910052737 gold Inorganic materials 0.000 description 1
- 230000017525 heat dissipation Effects 0.000 description 1
- 238000010248 power generation Methods 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 230000001172 regenerating effect Effects 0.000 description 1
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Abstract
The utility model provides a flexible valve set spare for direct current transmission and IGBT submodule piece thereof, valve set spare includes the installation frame, the installation frame front portion has set firmly submodule piece crimping unit, submodule piece crimping unit includes middle frame and both ends board, middle frame is last to be installed along controlling orientation alternate two at least sub - modules and the intermodule insulating spacer of arranging in proper order, be equipped with two clamping device on the board of both ends, each submodule piece includes 2 IGBT respectively, 3 individual radiator and 1 thyristor, 2 individual IGBT and 3 radiators are along controlling the direction in proper order each other at a distance from arranging, 1 individual thyristor setting is in the outside of rightmost side radiator, the thyristor corresponds wainscot fixed mounting on the lateral surface of rightmost side radiator, the thyristor right side be equipped with be used for with the electric aluminum row of rightmost side radiator cooperation in order to press from both sides tight thyristor. Through a plurality of submodule pieces of crimping of can establishing ties of two clamping device in the submodule piece crimping unit, can effectively simplify the pressure equipment fixed structure of whole valve set spare neutron module.
Description
Technical field
The utility model relates to a kind of flexible DC power transmission converter valve components and IGBT submodule thereof.
Background technology
Technology of HVDC based Voltage Source Converter is a kind of VSC-HVDC technology based on voltage source converter, turn-off device and pulse modulation technology.With tradition based on thyristor current source type HVDC Transmission Technology compared with, Technology of HVDC based Voltage Source Converter have employed the power electronic device IGBT of full-control type, system response speed is fast, controllability is better, operational mode is flexible, can reduce system short circuit capacity, improves the quality of power supply.Grid-connected in regenerative resource, there is obvious advantage in distributed power generation is grid-connected, island with power, urban distribution network are powered etc.
Existing flexible direct current transmission converter valve submodule many employings single module independence plug-in structure both domestic and external, the traditional IGBT of IGBT multiselect.If application publication number is disclose a kind of submodule in parallel for flexible DC power transmission in the Chinese invention patent application of CN1013354232A, this submodule in parallel of this submodule comprises electric capacity, two IGBT power cells and two main busbars, each IGBT power cell comprises radiator, plural IGBT submodule in parallel and control loop thereof, each power cell also comprises composite bus bar, electric capacity is connected with corresponding IGBT power cell by composite bus bar upper end electric capacity link, the leading-out terminal that two main busbars are provided with respectively by two composite bus bars connects with corresponding IGBT power cell, and, between two main busbars, conduction is connected with thyristor.
This submodule in parallel uses as independent sub-modules, due to IGBT in each submodule and thyristor location problem, single module can only be installed on matrix as independent integral plugged being fixed on, need to adopt crimping fixed structure clamping to fix to each single module.
There is following great drawback in this independent sub-modules mounting structure: the first, and because each independent sub-modules needs crimping separately, crimping components and parts kind, quantity are various, and install and think heavy, cost is high; The second, between each independent sub-modules, claimed structure is independent, and for ensureing insulation clearance, the designing requirement of integral valve size of components is huge, adds the overall dimension of converter valve tower; 3rd, between submodule inner and submodule, cabling is complicated, and need to consider the requirement of internal electric insulation distance, increase component design difficulty, structural design is loaded down with trivial details.
Utility model content
The utility model provides a kind of IGBT submodule, to solve the comparatively complicated technical problem of the single module plug-in mounting structure that exists in prior art; Meanwhile, the utility model also provides a kind of flexible DC power transmission converter valve components using above-mentioned IGBT submodule.
The technical scheme of IGBT submodule provided by the utility model is: IGBT submodule, it is characterized in that: comprise 2 IGBT, 3 radiators and 1 thyristor, 2 IGBT and 3 radiators spaced layout successively in left-right direction, the veneer that 2 IGBT are corresponding is respectively fixedly mounted in the respective side of radiator, the corresponding veneer of thyristor is fixedly mounted on the lateral surface of rightmost side radiator, and the right side of thyristor is provided with the electroconductive aluminium strip for coordinating with described rightmost side radiator to clamp thyristor.
In described 3 radiators the leftmost side radiator on veneer be installed with resistance.
3 described radiators are also installed with submodule control loop.
The technical scheme of the flexible DC power transmission converter valve components of the above-mentioned IGBT submodule of use provided by the utility model is: flexible DC power transmission converter valve components, comprise installation frame, the front portion of installation frame is installed with submodule crimping unit, submodule crimping unit comprises the central frame extended in left-right direction and the two end plates being installed in two ends, central frame left and right, two end plates is installed on installation frame, central frame is provided with at least two submodules and the intermodule insulating spacer of alternate layout successively in left-right direction, two end plates is provided with for the use of with two clamping devices of submodule described in clamping position and intermodule insulating spacer in the lateral direction, each submodule comprises 2 IGBT respectively, 3 radiators and 1 thyristor, 2 IGBT and 3 radiators spaced layout successively in left-right direction, the veneer that 2 IGBT are corresponding is respectively fixedly mounted in the respective side of radiator, the corresponding veneer of thyristor is fixedly mounted on the lateral surface of rightmost side radiator, the right side of thyristor is provided with the electroconductive aluminium strip for coordinating with described rightmost side radiator to clamp thyristor, the rear portion of described installation frame is installed with the electric capacity be electrically connected with each submodule one_to_one corresponding.
Described central frame comprise two ends respectively with a left side, the insulated tension pole that right end plate is connected, described two end plates is left, right end plate, two end plates is respectively equipped with and is fixed on fixed installation portion on installation frame for submodule being crimped unit, first member plate comprises for fixing the first member plate bearing of assembling and the movable end plate be assemblied on first member plate bearing of guiding movement in left-right direction with right end plate, the left end of described insulated tension pole realizes being connected of insulated tension pole and described first member plate by being connected with movable end plate, fixed installation portion on described first member plate is arranged on described first member plate bearing, one of them in described two clamping devices is arranged in right end plate, another is arranged on described movable end plate.
Described movable end plate is movably assemblied on described first member plate bearing by the dovetail groove guide frame extended the in left-right direction guiding be arranged between movable end plate and first member plate bearing.
Described right end plate and movable end plate comprise the end plate body for installing respective clamp device respectively, two clamping devices are the top pressure charger that the correspondence extraneous load maintainer of confession be arranged on two end plates body applies active force, two top pressure chargers have the top pressure clamping part of the respective end for pushing up the described valve group of pressure clamping respectively, and in two top pressure chargers, at least one top pressure charger is elastic top pressure charger.
Described elastic top pressure charger comprises guiding movement in left-right direction and is assemblied in loading axle on corresponding end plate body, the one end towards described submodule loading axle is defined as the inner, loading axle is set with top, outer end and is pressed in the disc spring loaded on axle, disc spring has the elastic top pressure side for applying elastic top pressure active force to submodule, load axle is also set be arranged in outside described disc spring for being fixed on locking nut on respective end plates body when loading axle pushing tow disc spring and moving and load and put in place by loading axle.
Described installation frame comprises interval in left-right direction and arranges, walk abreast the left side beams of metal arranged and right side beams of metal along the longitudinal direction, two beams of metals are fixedly assembled together by the isolation beam of bridge joint in centre, described each submodule leads to respectively two busbars, the busbar of the leftmost side in all busbars of each submodule arranged successively in left-right direction in described submodule crimping unit and left side beams of metal conduct electricity and are connected, the busbar of the rightmost side and right side beams of metal conduct electricity and are connected, each busbar between leftmost side busbar and rightmost side busbar conducts electricity series connection successively, overhang insulation block is provided with between two clamping devices in described submodule crimping unit and described submodule, and two clamping devices are respectively by the submodule of described overhang insulation block in the lateral direction described in clamping position and intermodule insulating spacer.
3 radiators of described each submodule correspond to left side radiator, intermediate heat sink and right side radiator, right side radiator is described rightmost side radiator, and one of them busbar in two busbars in each module is drawn from intermediate heat sink, another busbar is drawn from right side radiator.
The beneficial effect of IGBT submodule provided by the utility model is: in IGBT submodule provided by the utility model, be assembled together alternate successively in left-right direction to IGBT, radiator and thyristor, the multiple submodule of crimping so that two clamping devices that can be crimped in unit by submodule can be connected, thus effectively can simplify the press-loading fixation structure of whole converter valve components Neutron module.Further, the spaced layout successively in left-right direction of 2 IGBT and 3 radiators in each submodule, 1 thyristor is arranged on the outside of rightmost side radiator, like this, each IGBT all can realize two sides heat radiation, effectively improves heat dissipation environment, improve IGBT reliability, extend its useful life.
Further, in flexible DC power transmission converter valve components, due to the effect of insulated tension pole, movable end plate and right end plate fit through two gripping apparatus grips locator modules.When submodule crimping unit is inner because when each parts or insulated tension pole occur causing because expanding with heat and contract with cold producing stress, under stress drive, on first member plate bearing, fine setting is carried out in left-right direction mobile by movable end plate, ensure the self-control of submodule crimping whole unit system stress in the lateral direction, the internal stress that the connection of effective elimination traditional submodule crimping unit internal rigid produces and the internal stress that part produces because expanding with heat and contract with cold distortion, effectively improve the stability of series connection crimping structure.
Further, assembled by the guiding of dovetail groove guide frame realization activity end plate and first member plate bearing, not only can realize the stable guiding to movable end plate, the effective location to movable end plate can also be realized on front and back and above-below direction.
Further, two clamping devices are the top pressure charger applying active force for extraneous load maintainer, one end loading or two ends so just can be adopted according to actual needs to load simultaneously, also can carry out the operation that one end unloading or two ends unload simultaneously according to actual needs, whole crimping operation more flexibly, convenient.Particularly when the IGBT submodule that clamping distortion is larger, if only adopt one-sided loading, because the deflection of the IGBT in IGBT submodule in loading procedure is larger, the loading stroke of one-sided loading is longer, operation is inconvenience comparatively, and adopt two ends to load, just effectively can reduce one-sided loading stroke, reduce the volume of top pressure charger.Further, at least one the top pressure chargers in two top pressure chargers are elastic top pressure charger, like this can in loading procedure the safety of guaranteed output module.
Further, installation frame comprises two beams of metals of both sides, two beams of metals not only can meet the load-bearing requirements of whole valve module, in addition, two beams of metals can also connect as the current potential of valve module two outlet row, submodule is crimped leftmost side busbar in all busbars of each submodule in unit and left side beams of metal conduct electricity be connected, rightmost side busbar and left side beams of metal conduct electricity and be connected, directly externally realize the electrical connection between converter valve components by two beams of metals, reduce much loaded down with trivial details busbar and securing supports.And, two clamping devices clamp described submodule and intermodule insulating spacer in the lateral direction by overhang insulation pad block, effectively can ensure between each submodule and described two end plates, there are enough electric and creepage distances, ensure the insulation between submodule and end plate, and then ensure that the radiator of both sides beams of metal and each submodule and electroconductive aluminium strip have different current potential, ensure that beams of metal can be connected with external conductive as busbar.
Accompanying drawing explanation
Fig. 1 is the structural representation of a kind of embodiment of IGBT submodule provided by the utility model;
Fig. 2 is the structural representation of a kind of embodiment of flexible DC power transmission converter valve components of submodule shown in use Fig. 1 provided by the utility model;
Fig. 3 is the structural representation of installation frame in Fig. 2;
Fig. 4 is the structural representation of Fig. 2 Neutron module crimping unit;
Fig. 5 is the structural representation of the framework of Fig. 4 Neutron module crimping unit;
Fig. 6 is left side clamp structure schematic diagram in Fig. 5;
Fig. 7 is A-A cutaway view in Fig. 6;
Fig. 8 is right side clamp structure schematic diagram in Fig. 5;
Fig. 9 is B-B cutaway view in Fig. 8.
Embodiment
As shown in Figure 1, a kind of embodiment of IGBT submodule, submodule in this embodiment comprises 2 IGBT198, 3 radiators and 1 thyristor 199, 3 radiators are right side radiator 191, intermediate heat sink 192 and left side radiator 193, 2 IGBT and 3 radiators spaced layout successively in left-right direction, 1 thyristor 199 is arranged on the outside of right side radiator 191, and, the veneer that 2 IGBT are corresponding is respectively fixedly mounted in the respective side of radiator, the corresponding veneer of thyristor 199 is fixedly mounted on the lateral surface of right side radiator 191, the right side of thyristor 199 is provided with for coordinating to clamp the electroconductive aluminium strip 190 of thyristor 199 with described right side radiator 191.Wherein, on left side radiator 193, veneer is installed with resistance 194.Further, 3 radiators are also installed with submodule control loop 195.
Further, submodule leads to two busbars, one of them busbar 196 in two busbars is drawn from intermediate heat sink 192 extraction, another busbar 197 from right side radiator 191.
As shown in Fig. 2 to Fig. 9, a kind of embodiment of flexible DC power transmission converter valve components, converter valve components in this embodiment comprises installation frame 100, the front portion of installation frame 100 is installed with submodule crimping unit 300, submodule crimping unit 300 is crimped with multiple submodule 19, the structure of each submodule 19 is identical with the IGBT sub modular structure shown in above-mentioned Fig. 1, does not repeat them here.Further, be installed with the electric capacity 200 be electrically connected with each submodule one_to_one corresponding at the rear portion of installation frame 100, also correspond to each submodule in the front portion of installation frame 100 and be provided with by-pass switch 306 one to one respectively.
Installation frame 100 comprises left side beams of metal 101 and the right side beams of metal 102 of interval layout, along the longitudinal direction parallel layout in left-right direction, between two beams of metals, bridge joint has two the I shape isolation beams 104 arranged fore U-shaped isolation beam 103 and be arranged on rear portion, two beams of metals and U-shaped isolation beam and I shape isolation beam fixedly assembly installation frame by metal bent plate and bolt, and two beams of metals are fixedly assembled together by the U-shaped isolation beam 103 of bridge joint in centre and I shape isolation beam 104.
In submodule crimping unit in converter valve components in the present embodiment, there are 6 submodules, the busbar of the leftmost side in all busbars of each submodule and left side beams of metal conduct electricity be connected, the busbar of the rightmost side and right side beams of metal conduct electricity and be connected, each busbar between leftmost side busbar and rightmost side busbar conducts electricity series connection successively.
Submodule crimping unit 300 comprises the central frame 600 extended in left-right direction and the first member plate 400 and the right end plate 500 that are arranged on central frame about 600 two ends, two end plates is provided with for the use of with two clamping devices of submodule 19 described in clamping position and intermodule insulating spacer 20 in the lateral direction, submodule 19 and intermodule insulating spacer 20 alternate layout successively in left-right direction, overhang insulation block 18 is respectively equipped with between two submodules at two ends and two clamping devices, a side towards submodule of overhang insulation block 18 is pressing face, top, one end towards corresponding clamping device be provided with for the top of corresponding clamping device press clamping part to coincide locating groove that grafting clamps, two clamping devices are respectively by the submodule of described overhang insulation block in the lateral direction described in clamping position and intermodule insulating spacer.
In the present embodiment, central frame 600 comprises first member plate 400 and right end plate 500, and left and right end plate is respectively equipped with and is fixed on fixed installation portion on installation frame 100 for submodule being crimped unit, fixed installation portion is herein bolt mounting holes.
First member plate 400 comprises first member plate bearing 2 and the movable end plate 5 be movably assemblied on first member plate bearing 2 that leads in left-right direction, described fixed installation portion correspondence on first member plate is arranged on first member plate bearing 2, and movable end plate 5 is movably assemblied on described first member plate bearing 2 by the dovetail groove extended the in left-right direction guiding assembly structure guiding be arranged between movable end plate 5 and first member plate bearing 2.Right end plate 500 is comprised right end plate bearing 3 and is installed in the fixed charge method end plate 6 on right end plate bearing 3 by bolt connection structure, and the fixed installation portion of right end plate 500 is arranged on right end plate bearing 3.
The two ends of the insulated tension pole 7 of central frame 600 are connected with first member plate and right end plate respectively, specifically, the left end of insulated tension pole 7 realizes being connected of insulated tension pole 7 and described first member plate with by being connected with movable end plate 5, and the right-hand member of insulated tension pole is by being connected to realize being connected of insulated tension pole 7 and right end plate with fixed charge method end plate 6.
Specifically, fixed charge method end plate 6 and movable end plate 5 comprise the end plate body for installing respective clamp device respectively, the two ends of described insulated tension pole 7 are connected with two end plates body respectively, the side of end plate body is provided with the draw-in groove extended in left-right direction, the respective end of described insulated tension pole 7 is installed in described draw-in groove 7 in left-right direction, the pressing plate 8 be installed with for being fitted in by insulated tension pole 7 in corresponding draw-in groove 7 also removable on end plate body.
Further, in the present embodiment, for improving the overall construction intensity of submodule crimping unit, the first member plate bearing 2 of the right end plate bearing 3 of right end plate and first member plate is fixedly assembled together by the insulating supporting beam 4 extended in left-right direction.
One of them in two clamping devices on central frame is arranged in right end plate, another is arranged on described movable end plate, right end plate and movable end plate comprise the end plate body for installing respective clamp device respectively, two clamping devices are the top pressure charger that the correspondence extraneous load maintainer of confession be arranged on two end plates body applies active force, wherein, the top pressure charger be arranged on movable end plate is rigid top pressure charger, and the top pressure charger be arranged in right end plate is specially elastic top pressure charger.
In the present embodiment, rigid top pressure charger is arranged in the baffle body of movable end plate 5, rigid top pressure charger specifically comprises axially spiral in left-right direction and is assemblied in the spherical adjustment bolt 11 in the baffle body of movable end plate 5, one end towards valve group of spherical adjustment bolt 11 is bulb, the bulb top press-fit power transmission shaft 10 of spherical adjustment bolt 11, during power transmission shaft 10 slides in left-right direction and is installed on the end plate body being fixedly arranged on movable end plate 5 fairlead 9, one end towards submodule of power transmission shaft 10 is the rigid top pressure side for applying rigid top pressure active force to submodule, inner side platen 12 is installed with in the rigid top pressure side of power transmission shaft 10, inner side platen 12 and the locating groove on the overhang insulation block 18 of corresponding side coincide setting-in.
In the present embodiment, elastic top pressure charger is arranged on the end plate body of fixed charge method end plate 6, elastic top pressure charger comprises guiding movement in left-right direction and is assemblied in loading axle 13 on the end plate body of fixed charge method end plate 6, the one end towards described submodule loading axle 13 is defined as the inner, loading axle 13 is set with top, outer end and is pressed in the disc spring 14 loaded on axle, loading axle 13 is provided with the block flange that push up press-fit corresponding to disc spring, the inner of disc spring 14 is the elastic top pressure side for applying elastic top pressure active force to submodule, go back coaxial sleeve in loading axle 13 the inner and back-up ring 15 is housed, the inner face loading axle 13 is installed with the baffle plate 16 moving inward to deviate to load axle for being placed on disc spring 14 and back-up ring 15, corresponding and the locating groove on the overhang insulation block 18 of corresponding side in the inner of back-up ring 15 coincide setting-in.And, load axle 13 is also set be arranged in outside described disc spring 13 for being fixed on locking nut 17 on the end plate body of fixed charge method end plate 6 when loading axle pushing tow disc spring 13 and moving and load and put in place by loading axle 13, the concrete spiral of locking nut 17 is herein assemblied in and loads on axle, on the end plate body of fixed charge method end plate 6, for installing, to load the perforation of axle 13 be cascaded surface shoulder hole inwardly, and the top, outer end of locking nut 17 is pressed on the cascaded surface inwardly of shoulder hole.
In the present embodiment, unit can be crimped according to following step assembling submodule:
Step 1, the first member plate bearing 2 and the right end plate bearing 3 that submodule are crimped unit are fixed on as on the operating platform of matrix, and first member plate bearing 2 and right end plate bearing 3 are fixedly assembled together by two ends screw-threaded coupling insulating supporting beam 4.
Step 2, is fixed fixed charge method end plate 6 and right end plate bearing 3 by bolt-locking; Movable end plate 5 and first member plate bearing 2 are clamped by oat tail groove structure and puts in place, the insulated tension pole 7 of 2 band gold utensil terminations is snapped fitted in the draw-in groove 7 that the side of the end plate body of fixed charge method end plate 6 and movable end plate 5 is preset with respectively, pressing plate 8 by bolt-locking on the end plate body of fixed charge method end plate 6 and movable end plate 5.
Step 3, fairlead 9 is fixed to inside movable end plate 5, power transmission shaft 10 is loaded inside fairlead 9, ball stud 11 is by screw thread precession activity end plate 5, be provided with the circular bulb of half in ball stud 11 end recesses, the end face of this semicircle bulb coordinates with power transmission shaft 10 end face, by continuing to screw bolt, power transmission shaft 10 part is screwed out guider 9, the groove of intron module crimping unit inside platen 12, coordinates contact with it.
Step 4, is set with disc spring 14, back-up ring 15 by loading axle 13 side, and fixes above-mentioned part with block 16, and the opposite side loading axle 13 is screwed locking nut 17, is fastened on fixed charge method end plate 6 by the above-mentioned elastic top pressure charger assembled.
Step 5, said structure forms central frame 600 jointly.
Assembling submodule crimping unit:
Step 6, is fitted in central frame 1 as required by overhang insulation block 18, submodule 19, intermodule insulating spacer 20 successively.Overhang insulation block 18, submodule 19, intermodule insulating spacer 20 connect spacing by inner axial screws, and submodule 19 enters insulating supporting beam 4 by the fixed block inlay card stretched out bottom radiator and locates.
Step 7, the overhang insulation block 18 that rigid top pressure charger dependence inner side platen 12 inlay card on the left of submodule crimping unit enters left side is spacing, and the overhang insulation block 18 that elastic top pressure charger dependence back-up ring 15 inlay card on the right side of submodule crimping unit enters right side is spacing.
Submodule crimping unit top pressure:
Step 8, screws ball stud 11 by mechanical wrench, to top, submodule crimping unit side pressure, treats that frock just in time snaps in power transmission shaft 10 and screws out surface, stops top pressure.
Step 9, on the right side of submodule crimping unit, the top pressure side head of hydraulic tool is fastened on fixed charge method end plate 6, with hydraulic tool to submodule crimping unit top pressure, the central shaft top pressure of hydraulic tool loads axle 13, make the spacing disc spring 14 of back-up ring 15, disc spring 14 deforms, when the instrument of hydraulic tool is shown to required pressure, stop top pressure, load the locking nut 17 on axle with special wrench set locking, the slow pressure release of hydraulic tool, remove frock from fixed charge method end plate 6 after pressure release terminates, submodule crimping cellular installation terminates.
Step 10, in like manner, when submodule crimping unit is safeguarded, can crimp the installation site of unit on submodule according to submodule and select arbitrarily left and right side submodule crimping unit to carry out release.
Step 11, is installed to the rear portion of installation frame 100 successively by electric capacity 200, be installed on U-shaped isolation beam by by-pass switch 306.
Step 12, carries out being communicated with, with the submodule that led by cooling water of cooling water channel and radiator.
In the present embodiment, power model is IGBT module, and in other embodiments, power model also can be thyristor or other full control power model.
In the present embodiment, containing 6 submodules in flexible DC power transmission converter valve components, in other embodiments, also can crimp the submodule of respective number according to actual needs.
In the present embodiment, movable end plate is assemblied on first member plate bearing by dovetail groove guide frame guiding movement, and in other embodiments, movable end plate also can being assemblied on first member plate bearing by other guiding assembly structure guiding movement.
In the present embodiment, one of them in two clamping devices is rigid top pressure charger, and another is elastic top pressure charger, and in other embodiments, two clamping devices also can be two elastic top pressure chargers.
In the present embodiment, the top pressure of the rigidity that rigid top pressure charger also can adopt prior art to commonly use is put, and elastic top pressure charger also can adopt prior art Neutron module to crimp elastic top pressure charger used when unit assembles.
In the present embodiment, inner side platen is provided with between left and right end plate and submodule, inside this, platen is specially insulation platen, insulation platen internal notches is arranged, platen has enough large thickness and inside and outside footpath, can ensure between submodule and two end plates, there are enough electric and creepage distances, ensure the insulation between submodule and two end plates.
Claims (10)
1.IGBT submodule, it is characterized in that: comprise 2 IGBT, 3 radiators and 1 thyristor, 2 IGBT and 3 radiators spaced layout successively in left-right direction, the veneer that 2 IGBT are corresponding is respectively fixedly mounted in the respective side of radiator, the corresponding veneer of thyristor is fixedly mounted on the lateral surface of rightmost side radiator, and the right side of thyristor is provided with the electroconductive aluminium strip for coordinating with described rightmost side radiator to clamp thyristor.
2. IGBT submodule according to claim 1, is characterized in that: in described 3 radiators the leftmost side radiator on veneer be installed with resistance.
3. IGBT submodule according to claim 1 and 2, is characterized in that: 3 described radiators are also installed with submodule control loop.
4. flexible DC power transmission converter valve components, it is characterized in that: comprise installation frame, the front portion of installation frame is installed with submodule crimping unit, submodule crimping unit comprises the central frame extended in left-right direction and the two end plates being installed in two ends, central frame left and right, two end plates is installed on installation frame, central frame is provided with at least two submodules and the intermodule insulating spacer of alternate layout successively in left-right direction, two end plates is provided with for the use of with two clamping devices of submodule described in clamping position and intermodule insulating spacer in the lateral direction, each submodule comprises 2 IGBT respectively, 3 radiators and 1 thyristor, 2 IGBT and 3 radiators spaced layout successively in left-right direction, the veneer that 2 IGBT are corresponding is respectively fixedly mounted in the respective side of radiator, the corresponding veneer of thyristor is fixedly mounted on the lateral surface of rightmost side radiator, the right side of thyristor is provided with the electroconductive aluminium strip for coordinating with described rightmost side radiator to clamp thyristor, the rear portion of described installation frame is installed with the electric capacity be electrically connected with each submodule one_to_one corresponding.
5. flexible DC power transmission converter valve components according to claim 4, it is characterized in that: described central frame comprise two ends respectively with a left side, the insulated tension pole that right end plate is connected, described two end plates is left, right end plate, two end plates is respectively equipped with and is fixed on fixed installation portion on installation frame for submodule being crimped unit, first member plate comprises for fixing the first member plate bearing of assembling and the movable end plate be assemblied on first member plate bearing of guiding movement in left-right direction with right end plate, the left end of described insulated tension pole realizes being connected of insulated tension pole and described first member plate by being connected with movable end plate, fixed installation portion on described first member plate is arranged on described first member plate bearing, one of them in described two clamping devices is arranged in right end plate, another is arranged on described movable end plate.
6. flexible DC power transmission converter valve components according to claim 5, is characterized in that: described movable end plate is movably assemblied on described first member plate bearing by the dovetail groove guide frame extended the in left-right direction guiding be arranged between movable end plate and first member plate bearing.
7. flexible DC power transmission converter valve components according to claim 5, it is characterized in that: described right end plate and movable end plate comprise the end plate body for installing respective clamp device respectively, two clamping devices are the top pressure charger that the correspondence extraneous load maintainer of confession be arranged on two end plates body applies active force, two top pressure chargers have the top pressure clamping part of the respective end for pushing up the described valve group of pressure clamping respectively, and in two top pressure chargers, at least one top pressure charger is elastic top pressure charger.
8. flexible DC power transmission converter valve components according to claim 7, it is characterized in that: described elastic top pressure charger comprises guiding movement in left-right direction and is assemblied in loading axle on corresponding end plate body, the one end towards described submodule loading axle is defined as the inner, loading axle is set with top, outer end and is pressed in the disc spring loaded on axle, disc spring has the elastic top pressure side for applying elastic top pressure active force to submodule, load axle is also set be arranged in outside described disc spring for being fixed on locking nut on respective end plates body when loading axle pushing tow disc spring and moving and load and put in place by loading axle.
9. according to the flexible DC power transmission converter valve components in claim 4 to 8 described in any one, it is characterized in that: described installation frame comprises interval in left-right direction and arranges, walk abreast the left side beams of metal arranged and right side beams of metal along the longitudinal direction, two beams of metals are fixedly assembled together by the isolation beam of bridge joint in centre, described each submodule leads to respectively two busbars, the busbar of the leftmost side in all busbars of each submodule arranged successively in left-right direction in described submodule crimping unit and left side beams of metal conduct electricity and are connected, the busbar of the rightmost side and right side beams of metal conduct electricity and are connected, each busbar between leftmost side busbar and rightmost side busbar conducts electricity series connection successively, overhang insulation block is provided with between two clamping devices in described submodule crimping unit and described submodule, and two clamping devices are respectively by the submodule of described overhang insulation block in the lateral direction described in clamping position and intermodule insulating spacer.
10. flexible DC power transmission converter valve components according to claim 9, it is characterized in that: 3 radiators of described each submodule correspond to left side radiator, intermediate heat sink and right side radiator, right side radiator is described rightmost side radiator, and one of them busbar in two busbars on each submodule is drawn from intermediate heat sink, another busbar is drawn from right side radiator.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520552519.0U CN204834622U (en) | 2015-07-28 | 2015-07-28 | Flexible valve set spare for direct current transmission and IGBT submodule piece thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520552519.0U CN204834622U (en) | 2015-07-28 | 2015-07-28 | Flexible valve set spare for direct current transmission and IGBT submodule piece thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204834622U true CN204834622U (en) | 2015-12-02 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520552519.0U Withdrawn - After Issue CN204834622U (en) | 2015-07-28 | 2015-07-28 | Flexible valve set spare for direct current transmission and IGBT submodule piece thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204834622U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105006474A (en) * | 2015-07-28 | 2015-10-28 | 许继电气股份有限公司 | Converter valve component used for flexible DC power transmission and IGBT submodules thereof |
| CN109038632A (en) * | 2018-07-11 | 2018-12-18 | 许继集团有限公司 | Converter valve submodule control loop unit, converter valve sub-module assemblies and converter valve |
-
2015
- 2015-07-28 CN CN201520552519.0U patent/CN204834622U/en not_active Withdrawn - After Issue
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105006474A (en) * | 2015-07-28 | 2015-10-28 | 许继电气股份有限公司 | Converter valve component used for flexible DC power transmission and IGBT submodules thereof |
| CN105006474B (en) * | 2015-07-28 | 2018-03-02 | 许继电气股份有限公司 | Flexible DC power transmission converter valve components and its IGBT submodules |
| CN109038632A (en) * | 2018-07-11 | 2018-12-18 | 许继集团有限公司 | Converter valve submodule control loop unit, converter valve sub-module assemblies and converter valve |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20151202 Effective date of abandoning: 20180302 |
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| AV01 | Patent right actively abandoned |