CN103051207A - Injection enhanced gate transistor (IEGT)-based high-capacity water-cooled modular H-bridge structure for converter - Google Patents
Injection enhanced gate transistor (IEGT)-based high-capacity water-cooled modular H-bridge structure for converter Download PDFInfo
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- CN103051207A CN103051207A CN2012102721867A CN201210272186A CN103051207A CN 103051207 A CN103051207 A CN 103051207A CN 2012102721867 A CN2012102721867 A CN 2012102721867A CN 201210272186 A CN201210272186 A CN 201210272186A CN 103051207 A CN103051207 A CN 103051207A
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Abstract
The invention discloses an injection enhanced gate transistor (IEGT)-based high-capacity water-cooled modular H-bridge structure for a converter. The H-bridge structure is symmetrical in leftward and rightward directions, and comprises a box type frame, a left-phase module unit, a left capacitance module, a bypass module, a voltage crowbar circuit, an isolated power supply, a left discharging resistor, a left water-cooled resistive radiator, a left module driving unit, a water outlet pipe, a water inlet pipe, a left-phase module water inlet branch pipe, a left-phase module water outlet branch pipe, a left control unit, a left power unit and a left charging unit, wherein the left-phase module unit and the left capacitance module are positioned on left front and rear parts of the left side in the frame respectively; the bypass module and the voltage crowbar circuit are positioned on the middle parts of the front and rear parts in the frame respectively; the isolated power supply is fixedly arranged on the rear part of the frame; the left discharging resistor is fixedly arranged on the left side of the rear part of the frame; the left water-cooled resistive radiator is fixedly arranged on the left discharging resistor; the left module driving unit is connected to the front end of the left-phase module unit; the water outlet pipe and the water inlet pipe are transversely arranged on the upper and lower parts of the rear part of the frame respectively; and the left control unit, the left power unit and the left charging unit are sequentially and fixedly arranged from front to back on the left side of the frame. The H-bridge structure can be applied to various high-voltage high-capacity converters, is light and simple in structure and convenient to assemble, debug and maintain, and can be modularly produced in batches, and the high-voltage high-capacity installation requirements of modern power electronics can be met.
Description
Technical field
The present invention relates to the current transformer H bridge construction in a kind of power electronics industry, particularly a kind of based on the large capacity current transformer water cooling module H bridge construction (hereinafter to be referred as the H bridge construction) of IEGT (Injection Enhanced Gate Transistor electron injection enhancement gate transistor).
Background technology
The development and use of the energy are the signs of human progress.Wherein, the terminals consume with the electric power energy form accounts for very large proportion.Because generating, transmission of electricity, distribution and electricity consumption etc. be the great link of power industry, in the process of each link energy transmission, the quality of electric energy all there is requirement.For improving the many effective measures of the normal employing of the quality of power supply, wherein maximum take reactive power compensator as consumption.And current appearance owing to the novel high-power device, such as IEGT, so that the high-power reactive power compensator of STATCOM is developed.
Employing based on the large capacity current transformer of IEGT in the high-power reactive-load compensation equipment of STATCOM is comparatively widely corollary equipment of present power grid application, the H bridge is Core equipment parts wherein, according to the electrical design requirement, electrical structure unit piece assembly unit is wherein got up, be installed in the fixing structure, by the connection between the structure, guarantee that the electric original paper of STATCOM equipment can the normal reliable running again.The structure of H bridge to guarantee the requirement of electrical design, can satisfy equipment to high-power integrated simultaneously in continuous improvement, intensive development.
In the prior art, H bridge frame structure is confined to low capacity installation equipment more, and is not suitable for the large capacity (200Mvar) of high pressure (35kV), modularization production requirement.
The H bridge construction of prior art mostly is the IGBT power device, and is not the modular unit structure.(application number is: 201110341235.3), only provide H bridge circuit schematic diagram such as " a kind of multi-functional fast-switching arrangement based on cascade converter ".And " based on the high-power converter of IGBT module parallel connection " (application number is: 201010624224.1), do not provide the H bridge construction.
Do not see at present the large capacity current transformer water cooling module H bridge construction that adopts IEGT." a kind of power-phase module based on IEGT " that only has this seminar to apply for (patent No. is: ZL201010121677.2) (patent No. is: ZL201020128033.1) all authorize for patent of invention structure (seeing Fig. 5 and Fig. 6) and " a kind of high-capacity H bridge power unit based on fully-controlled converter injection enhanced gate transistor (IEGT) " by utility model patent circuit theory diagrams (see figure 4).
Summary of the invention
Technical problem to be solved by this invention, just provide a kind of large capacity current transformer water cooling module H bridge construction based on IEGT, this H bridge construction can be applicable in the multiple high-voltage large-capacity current transformer, can fill sufficient modern power electronic high-voltage large-capacity installation needs, and light in structure letter, in batches modularization production, assembling, debugging and easy to maintenance.
Solve the problems of the technologies described above, the present invention is achieved through the following technical solutions:
A kind of large capacity current transformer water cooling module H bridge construction based on IEGT is characterized in that: the structure left-right symmetric, and composition comprises:
Boxed frame (1);
Left phase module unit (2) is in framework front portion, interior left side and is provided with A card (3-1);
Left capacitance module (5) is in rear portion, left side in the framework, is provided with B card (6-1);
Bypass module (4) is in centre anterior in the framework and is provided with and accesses copper bar (4-1) and pick out copper bar (4-2);
Voltage crowbar circuit (7) is in after the centre at rear portion is positioned at bypass module (4) in the framework;
Insulating power supply (14) is fixed on the insulating power supply fixed head (15) of framework back;
Left discharge resistance (17) is fixed on the left side of framework back;
Left water-cooled resistance radiator (16) is fixed on the left discharge resistance (17);
Left module drive unit (9) is connected to described left phase module unit front end;
Outlet pipe and water inlet pipe (24 and 23), transverse arrangement of turbo is about the framework back respectively;
(12) are in charge of in left phase module water inlet, pick out from the water inlet pipe left end, cause the front outside frame left, enter left phase module by fast joint of waterpipe;
(13) are in charge of in left phase module water outlet, pick out by fast joint of waterpipe from left phase module front, cause the outlet pipe left end outside frame left;
Left control unit, left power subsystem and left charhing unit, fixing successively from front to back in frame left.
On the basis of the above, the present invention can also do following further improvement:
The centre of described boxed frame (1) bottom surface is provided with two longitudinal supporting plates, the back is provided with two apart transverse support plates, and the end face front portion is provided with a horizontal stiffener.
Described left capacitance module (5) fixedly is formed in parallel with clamping plate by two high-voltage large-capacity capacitors (5-1).
The fast joint of waterpipe of described water-cooling system is a kind ofly only can be switched on or switched off with hand, and water can not overflow after disconnecting.
Described A card and B card are electrically connected mutually.
Described bypass module (4) is electrically connected fixing by stretching out copper bar with phase module.
Fig. 1 is the STATCOM logic schematic diagram, and Fig. 2 is STATCOM H bridge water-cooling system schematic diagram, and Fig. 3 is H bridge logic schematic diagram, and Fig. 4 is H bridge circuit schematic diagram, and Fig. 5 and Fig. 6 are respectively phase module three-dimensional structure diagram and the plane structure charts of prior art of the present invention.
Designing requirement (see figure 1) according to high-voltage large-capacity current transformer principle topological circuit, the every corresponding large capacity current transformer water cooling module H bridge unit of selecting several IEGT of current transformer, designing requirement according to current transformer principle topological circuit enters the H bridge joint in the designed system, the integral water-cooled but system principle of its current transformer H bridge unit is seen Fig. 2, I is total water inlet, and O is total delivery port.
H bridge (see figure 3) is mainly by two phase modules, two capacitance modules, voltage crowbar circuit, bypass module, the parts such as water cooling system and framework form, referring to Fig. 4, the first capacitance module (C3), the second capacitance module (C4) is connected in parallel on respectively the first-phase module, on the connectivity port of second-phase module and positive and negative busbar, voltage crowbar circuit is connected to positive and negative busbar port, it comprises behind two thyristors of reverse parallel connection and the resistance (R4) of connecting, bypass module is connected to the first-phase module, on the output port of second-phase module, it comprises behind two antiparallel thyristors (SCR1) and connects a contactor (SCR2).
Phase module in the H bridge (is seen schematic circuit among Fig. 4 and the plane graph of the IEGT phase module stereochemical structure among Fig. 5 and IEGT phase module structure, be A10), (this phase module has been authorized patent of invention, and the patent No. is: ZL201010121677.2) by IEGT high-power pipe, diode, inductance, electric capacity, resistance, water cooling system and system framework;
The phase module of prior art comprises two IEGT devices, and each IEGT device all is parallel with fly-wheel diode, and two IEGT devices are cascaded, and middle link leads to output; Phase module is provided with snubber circuit, and it comprises inductance, resistance, diode and electric capacity, and the diode cathode end links to each other with inductance, negative pole end links to each other with resistance one end, and the resistance other end links to each other with inductance; The negative pole end of diode also connects electric capacity one end, and the electric capacity other end is connected with negative busbar, and the diode cathode end that links to each other with inductance also links to each other with positive busbar.
Compared with prior art, the invention has the beneficial effects as follows:
1) this H bridge is based on the power cell of high-voltage great-current full-control type device IEGT, versatility, flexibility and reliability with super Strong, can be used as the high-voltage great-current current transformer of several functions, as, 35kV ± 200Mvar STATCOM high-power reactive power compensation; And for example, 10kV 25MW vast capacity high voltage converter;
2) this H bridge is a kind of power cell of high-voltage large-capacity water cooling module structure, and assembling is fast, the convenient production in enormous quantities in enormous quantities;
3) this H bridge Bian makes the power device cooling balanced with phased module parallel way water cooling system, has guaranteed the power system reliability of operation;
4) this H bridge construction has carried out multiple optimization, guarantees accuracy, reasonability that electric unit connects, and structure is very compact, and standardization and integrated level are high, and volume is little, and is low in energy consumption, is convenient to the realization of system's container cramped construction;
5) in this H bridge construction, adopted fast joint of waterpipe, can disconnect in the situation of press water or connect, because snap joint is when disconnecting, snap joint is sealed voluntarily, during connection, opens voluntarily, without drainage.This function can be safely, any one H bridge unit of Geng Change easily.
Description of drawings
Fig. 1 .STATCOM logic schematic diagram;
Fig. 2 .STATCOM H bridge water-cooling system schematic diagram;
Fig. 3 .H bridge logic schematic diagram;
Fig. 4 .H bridge circuit schematic diagram;
Fig. 5 .A10 is the phased module three-dimensional structure diagram of IEGT;
Fig. 6 .A10 is the phased module flat structure chart of IEGT;
The front view of Fig. 7 .H bridge construction figure;
The rearview of Fig. 8 .H bridge construction figure;
Fig. 9 is the framework schematic perspective view.
Fig. 6. (A10): water knockout drum A22-water-filled radiator A23-diode component A24-pressing type resistance A25-insulating trip A26-butterfly spring under the upper water knockout drum 20-diode component A21-of A11-fast joint of waterpipe A12-butterfly spring A13-insulating trip A14-metal tube A15-water-cooled disk joint A16-water-cooled buffer inductance A17-IEGT device A18-water-filled radiator A19-.
Among all the other figure: 1-framework, the left phase module of 2-unit, the right phase module of 3-unit, 3-1-card A, the 4-bypass module, 4-1-accesses copper bar, 4-2-picks out copper bar, the left capacitance module of 5-, 5-1-electric capacity, the right capacitance module of 6-, 6-1 card B, 7-voltage crowbar, 8-module fixed head, 9-module drive unit, the right phase module water inlet of 10-is in charge of, the right phase module water outlet of 11-is in charge of, the left phase module water inlet of 12-is in charge of, and the 14-insulating power supply is in charge of in the left phase module water outlet of 13-, 15-insulating power supply fixed head, 16-water-cooled resistance radiator, 17-discharge resistance, 18-water-filled radiator tube connector, 19-water-filled radiator water inlet pipe and water outlet pipe, the 20-charhing unit, 21-power subsystem, 22-control unit, the 23-water inlet pipe, the 24-outlet pipe.
Embodiment
Such as Fig. 7 and Fig. 8, shown in Figure 9, be the large capacity current transformer water cooling module H bridge construction based on IEGT of the present invention, the structure left-right symmetric, following symmetric part is only described the left side, and composition comprises:
Boxed frame 1, the centre of boxed frame 1 bottom surface are provided with two longitudinal supporting plates, the back is provided with two apart transverse support plates, and the end face front portion is provided with a horizontal stiffener, referring to Fig. 9;
Left phase module unit 2 is in framework front portion, interior left side and is provided with this member that only draws the right on the A card 3-1(figure, but structure is symmetrical, though can't see the left side this member is arranged in fact also);
A card and B card are electrically connected mutually.
Bypass module (4) is in centre anterior in the framework and is provided with and accesses copper bar (4-1) and pick out copper bar (4-2);
Bypass module (4) is electrically connected fixing by stretching out copper bar with phase module;
Voltage crowbar circuit (7) is in after the centre at rear portion is positioned at bypass module (4) in the framework;
Insulating power supply (14) is fixed on the insulating power supply fixed head (15) of framework back;
Left discharge resistance 17 is fixed on the left side of framework back;
Left water-cooled resistance radiator (16) is fixed on the left discharge resistance 17;
Left module drive unit 9 is connected to described left phase module unit front end;
Outlet pipe and water inlet pipe 24 and 23, transverse arrangement of turbo is about the framework back respectively;
Left phase module water inlet is in charge of 12, picks out from the water inlet pipe left end, causes the front outside frame left, enters left phase module by fast joint of waterpipe;
Left phase module water outlet is in charge of 13, picks out by fast joint of waterpipe from left phase module front, causes the outlet pipe left end outside frame left;
Fast joint of waterpipe is a kind ofly only can be switched on or switched off with hand, and water can not overflow after disconnecting.
Left control unit, left power subsystem and left charhing unit, fixing successively from front to back in frame left.
Frame structure is adopted in H bridge construction of the present invention design, makes it to satisfy fully the needs that the batch modularization of electric unit structure is produced, and adopts the static structure analysis to check structure.Design follow simple in structure, convenient disassembly, safe and efficient, connect compact firm, rationally distributed, the principles such as cabling is convenient.
Claims (3)
1. large capacity current transformer water cooling module H bridge construction based on IEGT is characterized in that: the structure left-right symmetric, and composition comprises:
Boxed frame (1);
Left phase module unit (2) is in framework front portion, interior left side and is provided with A card (3-1);
Left capacitance module (5) is in rear portion, left side in the framework, is provided with B card (6-1);
Bypass module (4) is in centre anterior in the framework and is provided with and accesses copper bar (4-1) and pick out copper bar (4-2);
Voltage crowbar circuit (7) is in after the centre at rear portion is positioned at bypass module (4) in the framework;
Insulating power supply (14) is fixed on the insulating power supply fixed head (15) of framework back;
Left discharge resistance (17) is fixed on the left side of framework back;
Left water-cooled resistance radiator (16) is fixed on the left discharge resistance (17);
Left module drive unit (9) is connected to described left phase module unit front end;
Outlet pipe and water inlet pipe (24 and 23), transverse arrangement of turbo is about the framework back respectively;
(12) are in charge of in left phase module water inlet, pick out from the water inlet pipe left end, cause the front outside frame left, enter left phase module by fast joint of waterpipe;
(13) are in charge of in left phase module water outlet, pick out by fast joint of waterpipe from left phase module front, cause the outlet pipe left end outside frame left;
Left control unit, left power subsystem and left charhing unit, fixing successively from front to back in frame left.
2. the large capacity current transformer water cooling module H bridge construction based on IEGT according to claim 1, it is characterized in that: the centre of described boxed frame (1) bottom surface is provided with two longitudinal supporting plates, the back is provided with two apart transverse support plates, the end face front portion is provided with a horizontal stiffener, and described left capacitance module (5) fixedly is formed in parallel with clamping plate by two high-voltage large-capacity capacitors (5-1).
3. the large capacity current transformer water cooling module H bridge construction based on IEGT according to claim 2, it is characterized in that: the fast joint of waterpipe of described water-cooling system is a kind ofly only can be switched on or switched off with hand, water can not overflow after disconnecting, described A card and B card are electrically connected mutually, and described bypass module (4) is electrically connected fixing by stretching out copper bar with phase module.
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN103260375A (en) * | 2013-04-22 | 2013-08-21 | 五力机电科技（昆山）有限公司 | Resistance-capacitance module |
| CN103683857A (en) * | 2013-12-13 | 2014-03-26 | 荣信电力电子股份有限公司 | Direct-current draw-out power supply of IEGT power module |
| CN110138191A (en) * | 2018-02-02 | 2019-08-16 | 荣信汇科电气技术有限责任公司 | The error protection and shunting device of modular multi-level converter power module |
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| CN103051207B (en) | 2015-09-16 |
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Address after: 523008, 239, Dongcheng building, Dongcheng District, Guangdong, Dongguan Co-patentee after: ELECTRIC POWER RESEARCH INSTITUTE OF GUANGDONG POWER GRID Co.,Ltd. Patentee after: GUANGDONG POWER GRID Co.,Ltd. DONGGUAN POWER SUPPLY BUREAU Co-patentee after: MONTNETS RONGXIN TECHNOLOGY GROUP CO.,LTD. Address before: 523008, 239, Dongcheng building, Dongcheng District, Guangdong, Dongguan Co-patentee before: ELECTRIC POWER RESEARCH INSTITUTE OF GUANGDONG POWER GRID Corp. Patentee before: Dongguan Power Supply Bureau,Guangdong Power Grid Corporation Co-patentee before: RONGXIN POWER ELECTRONIC Co.,Ltd. |
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Effective date of registration: 20200810 Address after: 523008 main mountain range, Dongcheng District, Guangdong, Dongguan Co-patentee after: ELECTRIC POWER RESEARCH INSTITUTE OF GUANGDONG POWER GRID Co.,Ltd. Patentee after: GUANGDONG POWER GRID Co.,Ltd. DONGGUAN POWER SUPPLY BUREAU Co-patentee after: RONGXIN HUIKO ELECTRIC TECHNOLOGY Co.,Ltd. Address before: 523008, 239, Dongcheng building, Dongcheng District, Guangdong, Dongguan Co-patentee before: Electric Power Research Institute of Guangdong Power Grid Co.,Ltd. Patentee before: GUANGDONG POWER GRID Co.,Ltd. DONGGUAN POWER SUPPLY BUREAU Co-patentee before: MONTNETS RONGXIN TECHNOLOGY GROUP Co.,Ltd. |
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| CP01 | Change in the name or title of a patent holder | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 523008 Vortex Ridge in Dongcheng District, Dongguan City, Guangdong Province Patentee after: GUANGDONG POWER GRID Co.,Ltd. DONGGUAN POWER SUPPLY BUREAU Patentee after: ELECTRIC POWER RESEARCH INSTITUTE OF GUANGDONG POWER GRID Co.,Ltd. Patentee after: Rongxin Huike Electric Co.,Ltd. Address before: 523008 Vortex Ridge in Dongcheng District, Dongguan City, Guangdong Province Patentee before: GUANGDONG POWER GRID Co.,Ltd. DONGGUAN POWER SUPPLY BUREAU Patentee before: ELECTRIC POWER RESEARCH INSTITUTE OF GUANGDONG POWER GRID Co.,Ltd. Patentee before: RONGXIN HUIKO ELECTRIC TECHNOLOGY Co.,Ltd. |