CN114156900A - Modular low pressure SVG, APF structure - Google Patents
Modular low pressure SVG, APF structure Download PDFInfo
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- CN114156900A CN114156900A CN202111399609.7A CN202111399609A CN114156900A CN 114156900 A CN114156900 A CN 114156900A CN 202111399609 A CN202111399609 A CN 202111399609A CN 114156900 A CN114156900 A CN 114156900A
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- 239000003990 capacitor Substances 0.000 claims abstract description 70
- 238000004146 energy storage Methods 0.000 claims abstract description 26
- 238000009423 ventilation Methods 0.000 claims description 27
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 18
- 229910052802 copper Inorganic materials 0.000 claims description 18
- 239000010949 copper Substances 0.000 claims description 18
- 210000004899 c-terminal region Anatomy 0.000 claims description 6
- 238000012423 maintenance Methods 0.000 abstract description 5
- 238000009826 distribution Methods 0.000 description 4
- 230000017525 heat dissipation Effects 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 238000001816 cooling Methods 0.000 description 2
- 230000020169 heat generation Effects 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 238000011900 installation process Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 230000004075 alteration Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J3/00—Circuit arrangements for ac mains or ac distribution networks
- H02J3/18—Arrangements for adjusting, eliminating or compensating reactive power in networks
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J3/00—Circuit arrangements for ac mains or ac distribution networks
- H02J3/01—Arrangements for reducing harmonics or ripples
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K5/00—Casings, cabinets or drawers for electric apparatus
- H05K5/02—Details
- H05K5/0213—Venting apertures; Constructional details thereof
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K7/00—Constructional details common to different types of electric apparatus
- H05K7/02—Arrangements of circuit components or wiring on supporting structure
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K7/00—Constructional details common to different types of electric apparatus
- H05K7/14—Mounting supporting structure in casing or on frame or rack
- H05K7/1438—Back panels or connecting means therefor; Terminals; Coding means to avoid wrong insertion
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K7/00—Constructional details common to different types of electric apparatus
- H05K7/20—Modifications to facilitate cooling, ventilating, or heating
- H05K7/20009—Modifications to facilitate cooling, ventilating, or heating using a gaseous coolant in electronic enclosures
- H05K7/20136—Forced ventilation, e.g. by fans
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K7/00—Constructional details common to different types of electric apparatus
- H05K7/20—Modifications to facilitate cooling, ventilating, or heating
- H05K7/2089—Modifications to facilitate cooling, ventilating, or heating for power electronics, e.g. for inverters for controlling motor
- H05K7/20909—Forced ventilation, e.g. on heat dissipaters coupled to components
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E40/00—Technologies for an efficient electrical power generation, transmission or distribution
- Y02E40/10—Flexible AC transmission systems [FACTS]
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E40/00—Technologies for an efficient electrical power generation, transmission or distribution
- Y02E40/20—Active power filtering [APF]
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- Engineering & Computer Science (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Power Engineering (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Inverter Devices (AREA)
Abstract
The invention discloses a modular low-voltage SVG and APF structure, which comprises a middle plate, an A-phase main loop module, a B-phase main loop module, a C-phase main loop module, a controller module and an energy storage capacitor module, wherein the A-phase main loop module, the B-phase main loop module and the C-phase main loop module are arranged on the upper side of the middle plate in parallel, the controller module and the energy storage capacitor module are arranged on the lower side of the middle plate, the A-phase main loop module, the B-phase main loop module and the C-phase main loop module respectively comprise a fuse, a relay, a small reactor, a large reactor, a radiator and an IGBT device, the fuse, the relay and the small reactor are arranged in series, and the series connection structure of the large reactor, the fuse, the relay and the small reactor is arranged at one end of the radiator in parallel. The invention has the advantages of simple structure, easy assembly, stable operation, convenient maintenance and low cost.
Description
Technical Field
The invention relates to a low-voltage SVG and APF structure, in particular to a modular low-voltage SVG and APF structure, belonging to the technical field of SVG and APF.
Background
The low-voltage SVG and the APF are widely applied to the electric power low-voltage distribution and utilization power grid, so that the power factor of the power grid is improved, the harmonic pollution of the power grid is eliminated, the energy loss of the power grid is reduced, the electric energy quality of the power grid is improved, and the low-voltage SVG and the APF are one of important basic and key high-technology equipment for the modernization of the distribution and utilization power grid. The low-voltage SVG and the APF have the same circuit structure and write different programs.
The structures and circuits of the low-voltage SVG and APF devices are very complex, comprise primary circuits and secondary circuits, and belong to primary and secondary fully-fused equipment. The primary circuit is connected in parallel in a low-voltage power distribution and utilization power grid, an IGBT is used as a key component, and a fuse, a switch, a reactor, a capacitor and the like are connected. The secondary circuit takes a high-grade microprocessor as a core, and peripheral sensors, actuators, interface devices and the like, so that automatic and intelligent functions of measurement, signal, control, communication and the like of a low-voltage distribution power grid and a primary circuit are realized.
Low-voltage SVG and APF circuits have problems of large volume, large mass, high power, high temperature rise and the like of primary circuits and problems of assembly of hundreds of electronic components of secondary circuits and electromagnetic compatibility thereof and the like, so that a reasonable structural design is required.
The existing SVG and APF devices generally do not adopt a modular structure, are all installed in a case in disorder, and have the problems of disordered layout, unreasonable air channel, too many connecting pieces and connecting wires, troublesome assembly, unstable operation, difficult maintenance, overhigh cost and the like.
Disclosure of Invention
The invention aims to provide a modular low-voltage SVG and APF structure, realize the modularization of the low-voltage SVG and APF, simplify the assembly structure of the SVG and the APF and reduce the maintenance cost.
In order to solve the technical problems, the technical scheme adopted by the invention is as follows:
the utility model provides a modular low pressure SVG, APF structure which characterized in that: contain the medium plate, A looks major loop module, B looks major loop module, C looks major loop module, controller module and energy storage capacitor module, A looks major loop module, B looks major loop module and C looks major loop module parallel arrangement are at the upside of medium plate, controller module and energy storage capacitor module set up the downside at the medium plate, A looks major loop module, B looks major loop module and C looks major loop module contain the fuse respectively, the relay, little reactor, big reactor, radiator and IGBT device, the fuse, relay and little reactor concatenate the setting, big reactor and fuse, the tandem structure of relay and little reactor sets up in radiator one end side by side.
Furthermore, the fuse is provided with a first fuse connection terminal and a second fuse connection terminal, the relay is provided with a first relay connection terminal and a second relay connection terminal, the small reactor is provided with a first small reactor connection terminal and a second small reactor connection terminal, the large reactor is provided with a first large reactor connection terminal and a second large reactor connection terminal, the IGBT device is provided with a C + connection terminal, a Co connection terminal, a C-connection terminal and an L connection terminal, the IGBT device is provided with an IGBT drive board, and a drive board connector is arranged on the IGBT drive board; the first wiring end of fuse is as SVG, APF's external power supply terminal, and the fuse second wiring end links to each other with the first wiring end of relay, and the relay second wiring end links to each other with the first wiring end of little reactor, and little reactor second wiring end links to each other with the first wiring end of big reactor, and big reactor second wiring end links to each other with the L wiring end of IGBT device.
Furthermore, the radiator comprises radiator comb sheets and a radiator plane, and the IGBT device and the IGBT drive board are arranged on the radiator plane; the large reactor is in a long round barrel shape, a large reactor ventilation hole is formed in the center of the large reactor, and the ventilation direction of the large reactor ventilation hole is parallel to the direction of the radiator comb sheet; the small reactor is in a short cylindrical shape, a small reactor ventilation hole is formed in the center of the small reactor, the ventilation direction of the small reactor ventilation hole is parallel to the comb sheet direction of the radiator, and the small reactor and the large reactor are adjacent to the comb radiator.
Furthermore, the energy storage capacitor module comprises energy storage capacitors and a capacitor circuit board, the energy storage capacitors are divided into a plurality of groups, capacitor air ducts are arranged among the plurality of groups of energy storage capacitors, the ventilation direction of the capacitor air ducts is parallel to the direction of the comb plate of the radiator, and the capacitor circuit board is provided with a capacitor C + terminal, a capacitor Co terminal, a capacitor C-terminal, a capacitor zero line terminal and a capacitor board connector.
Furthermore, a first controller connector, a second controller connector, a third controller connector, a fourth controller connector, a fifth controller connector and a sixth controller connector are arranged on the controller module.
Furthermore, the C + wiring end of the IGBT device is connected with the C + wiring end of the capacitor through a copper bar, the Co wiring end of the IGBT device is connected with the Co wiring end of the capacitor through a copper bar, the C-wiring end of the IGBT device is connected with the C-wiring end of the capacitor through a copper bar, the L wiring end of the IGBT device penetrates through the current sensor through the copper bar and then is connected with the second wiring end of the large reactor, the copper bar connected with the zero line wiring end of the capacitor is used as power supply zero line wiring terminals of SVG and APF, and the first wiring ends of fuses of the A-phase main loop module, the B-phase main loop module and the C-phase main loop module are respectively used as power supply A-phase, B-phase and C-phase wiring terminals of SVG and APF.
Furthermore, a first controller connector, a second controller connector and a third controller connector of the controller module are respectively connected with IGBT drive plate connectors of the A-phase main loop module, the B-phase main loop module and the C-phase main loop module through cables, and a fourth controller connector, a fifth controller connector and a sixth controller connector are respectively connected with the capacitor plate connector, the rear plate connector and the fan connector.
Further, still contain quick-witted case and apron, the apron sets up and constitutes the cuboid box of both ends open-ended at quick-witted case upside, and medium plate, A looks major loop module, B looks major loop module, C looks major loop module, controller module and energy storage capacitor module all set up in quick-witted case.
Further, the front side of medium plate is provided with the fan module, the rear side of medium plate is provided with the back plate module, the front side of machine case is provided with the front bezel, the back plate module is fixed at the rear side of machine case, all be provided with the ventilation hole on back plate module and the front bezel, be provided with A looks cover of being qualified for the next round of competitions on the back plate module, B looks cover of being qualified for the next round of competitions, C looks cover of being qualified for the next round of competitions, zero line connection cover and back plate connector, A looks main circuit module, B looks main circuit module and C looks main circuit module's the first wiring end of fuse stretch into A looks cover respectively, B looks cover of being qualified for the next round of competitions and C looks cover after respectively as SVG, APF's power A looks, B looks, C looks wiring terminal, the copper bar that links to each other with condenser zero line terminal stretches into zero line cover and is regarded as SVG, APF's power zero line binding post.
Further, the fan module comprises an upper exhaust fan, a lower exhaust fan and a fan connector, wherein the upper exhaust fan is arranged at a position corresponding to the radiators of the A-phase main loop module, the B-phase main loop module and the C-phase main loop module, and the lower exhaust fan corresponds to the controller module and the energy storage capacitor module.
Compared with the prior art, the invention has the following advantages and effects: the modularized low-voltage SVG and APF structure realizes the modularization of the SVG and the APF, thereby simplifying the installation process of the SVG and the APF cost, only needing to carry out modularized splicing, having compact and reasonable layout and fewer connecting pieces and connecting wires, and greatly reducing the manpower for installation, maintenance and replacement of the SVG and the APF products and the shutdown cost; the modular low-voltage SVG and APF structure is simple in structure and convenient to produce and assemble, so that the production cost is reduced, and the ventilation and heat dissipation effects are good, so that the stability of the whole operation is ensured.
Drawings
Fig. 1 is a schematic diagram of a modular low-voltage SVG, APF architecture of the present invention.
Fig. 2 is a schematic view of another orientation of a modular low-voltage SVG, APF structure of the present invention.
Fig. 3 is a schematic diagram of an IGBT device of the invention.
Fig. 4 is a schematic diagram of a chassis of the present invention.
Detailed Description
To elaborate on technical solutions adopted by the present invention to achieve predetermined technical objects, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, it is obvious that the described embodiments are only partial embodiments of the present invention, not all embodiments, and technical means or technical features in the embodiments of the present invention may be replaced without creative efforts, and the present invention will be described in detail below with reference to the drawings and in conjunction with the embodiments.
As shown in fig. 1 and fig. 2, the modular low-voltage SVG and APF structure of the present invention comprises a middle plate, an a-phase main circuit module 2, a B-phase main circuit module 3, a C-phase main circuit module 4, a controller module 5 and an energy storage capacitor module 6, wherein the a-phase main circuit module 2, the B-phase main circuit module 3 and the C-phase main circuit module 4 with large heat generation are arranged in parallel on the upper side of the middle plate, the controller module 5 and the energy storage capacitor module 6 with small heat generation are arranged on the lower side of the middle plate, the a-phase main circuit module 2, the B-phase main circuit module 3 and the C-phase main circuit module 4 respectively comprise a fuse 9, a relay 12, a small reactor 15, a large reactor 18, a radiator 21 and an IGBT device 22, the fuse 9, the relay 12 and the small reactor 15 are arranged in series along a straight direction, the large reactor 18 is arranged in parallel with the series connection structure of the fuse 9, the relay 12 and the small reactor 15 at one end of the radiator 21, the series connection structures of the large reactor 18, the fuse 9, the relay 12 and the small reactor 15 are parallel to each other and perpendicular to one end face of the radiator 21, and the series connection structures of the large reactor 18, the fuse 9, the relay 12 and the small reactor 15 are respectively located on two sides of the end face of the radiator 21.
The fuse 9 is provided with a fuse first terminal 10 and a fuse second terminal 11, the relay 12 is provided with a relay first terminal 13 and a relay second terminal 14, the small reactor 15 is provided with a small reactor first terminal 16 and a small reactor second terminal 17, and the large reactor 18 is provided with a large reactor first terminal 19 and a large reactor second terminal 20. As shown in fig. 3, the IGBT device 22 is provided with a C + terminal 23, a Co terminal 24, a C-terminal 25, and an L terminal 26, the IGBT device 22 is provided with an IGBT driver board 27, and the IGBT driver board 27 is provided with a driver board connector 28. A first terminal 10 of the fuse serves as an external power supply terminal of SVG and APF, a second terminal 11 of the fuse is connected with a first terminal 13 of a relay, a second terminal 14 of the relay is connected with a first terminal 16 of a small reactor, a second terminal 17 of the small reactor is connected with a first terminal 19 of a large reactor, and a second terminal 20 of the large reactor is connected with an L terminal 26 of an IGBT device.
The radiator 21 comprises a radiator comb plate 29 and a radiator plane 30, and the IGBT device 22 and the IGBT drive plate 27 are arranged on the radiator plane 30. The large reactor 18 is in a long round barrel shape, a large reactor ventilation hole 31 is formed in the center of the large reactor 18, and the ventilation direction of the large reactor ventilation hole 31 is parallel to the direction of the radiator comb plate 29; the small reactor 15 is in a short cylindrical shape, a small reactor ventilation hole 32 is formed in the center of the small reactor 15, the ventilation direction of the small reactor ventilation hole 32 is parallel to the direction of the comb fins 29 of the heat radiator, and the small reactor 15 and the large reactor 18 are adjacent to the comb-shaped heat radiator 21, so that ventilation, heat dissipation and cooling are facilitated.
The energy storage capacitor module 6 comprises energy storage capacitors 33 and a capacitor circuit board 34, the energy storage capacitors 33 are divided into a plurality of groups, capacitor air ducts 35 are arranged among the groups of energy storage capacitors, the ventilation direction of the capacitor air ducts 35 is parallel to the direction of the radiator comb plate 29 and used for ventilation, heat dissipation and cooling, and a capacitor C + terminal 36, a capacitor Co terminal 37, a capacitor C-terminal 38, a capacitor zero line terminal 39 and a capacitor plate connector 40 are arranged on the capacitor circuit board 34.
The controller module 5 is provided with a controller first connector 41, a controller second connector 42, a controller third connector 43, a controller fourth connector 44, a controller fifth connector 45 and a controller sixth connector 46.
The C + terminal 23 of the IGBT device 22 is connected with the C + terminal 36 of the capacitor through a copper bar 56, the Co terminal 24 of the IGBT device 22 is connected with the Co terminal 37 of the capacitor through the copper bar 56, the C-terminal 25 of the IGBT device 22 is connected with the C-terminal 38 of the capacitor through the copper bar 56, the L terminal 26 of the IGBT device 22 passes through a current sensor 57 through the copper bar 56 and then is connected with the second terminal 20 of the large reactor, the copper bar 56 connected with the zero line terminal 39 of the capacitor is used as a power supply zero line terminal of SVG and APF, and the first terminals 10 of the fuses of the A-phase main circuit module 2, the B-phase main circuit module 3 and the C-phase main circuit module 4 are respectively used as power supply A-phase, B-phase and C-phase wiring terminals of the SVG and the APF.
The controller first connector 41, the controller second connector 42, and the controller third connector 43 of the controller module 5 are connected to the IGBT drive board connectors 28 of the a-phase main circuit module 2, the B-phase main circuit module 3, and the C-phase main circuit module 4, respectively, by cables, and the controller fourth connector 44, the controller fifth connector 45, and the controller sixth connector 46 are connected to the capacitor board connector 40, the rear board connector 52, and the fan connector 55, respectively.
As shown in fig. 4, a modular low-voltage SVG and APF structure further includes a case 1 and a cover plate 59, the cover plate 59 is disposed on the upper side of the case 1 to form a rectangular box with two open ends, and the middle plate, the a-phase main circuit module 2, the B-phase main circuit module 3, the C-phase main circuit module 4, the controller module 5 and the energy storage capacitor module 6 are disposed in the case 1. The front side of the middle plate is provided with a fan module 8, the rear side of the middle plate is provided with a rear plate module 7, the front side of the case 1 is provided with a front plate 58, the rear plate module 7 is fixed at the rear side of the case 1, the rear plate module 7 and the front plate 58 are both provided with vent holes 47, the rear plate module 7 is provided with an A-phase outgoing line cover 48, a B-phase outgoing line cover 49, a C-phase outgoing line cover 50, a zero line connection cover 51 and a rear plate connector 52, and the A-phase outgoing line cover 48, the B-phase outgoing line cover 49, the C-phase outgoing line cover 50 and the zero line connection cover 51 are respectively used for protecting A-phase outgoing line terminals, B-phase outgoing lines, C-phase outgoing lines and zero line outgoing line connection terminals. A first wiring end 10 of a fuse of the A-phase main circuit module 2, the B-phase main circuit module 3 and the C-phase main circuit module 4 respectively extends into an A-phase outgoing line cover 48, a B-phase outgoing line cover 49 and a C-phase outgoing line cover 50 to be used as power A-phase, B-phase and C-phase wiring terminals of SVG and APF, and a copper bar 56 connected with a capacitor zero line wiring end 39 extends into a zero line outgoing line cover 51 to be used as a power zero line wiring terminal of the SVG and the APF.
The fan module 8 includes an upper fan 53, a lower fan 54, and a fan connector 55, the upper fan 53 is disposed at a position corresponding to the positions of the radiators 21 of the a-phase main circuit module 2, the B-phase main circuit module 3, and the C-phase main circuit module 4, and the lower fan 54 is disposed at a position corresponding to the positions of the controller module 5 and the energy storage capacitor module 6. Specifically, the upper exhaust fan 53 includes 6 fans, the 6 fans are evenly divided into 3 groups, and two fans in each group are fixed in parallel and then are disposed at the end of the radiator 21 to exhaust and dissipate heat from the radiator 21. The lower exhaust fan 54 comprises 3 fans, and the 3 fans respectively correspond to the positions of the IGBT drive plates 27.
The modularized low-voltage SVG and APF structure realizes the modularization of the SVG and the APF, thereby simplifying the installation process of the SVG and the APF cost, only needing to carry out modularized splicing, having compact and reasonable layout and fewer connecting pieces and connecting wires, and greatly reducing the manpower for installation, maintenance and replacement of the SVG and the APF products and the shutdown cost; the modular low-voltage SVG and APF structure is simple in structure and convenient to produce and assemble, so that the production cost is reduced, and the ventilation and heat dissipation effects are good, so that the stability of the whole operation is ensured.
Although the present invention has been described with reference to a preferred embodiment, it should be understood that various changes, substitutions and alterations can be made herein without departing from the spirit and scope of the invention as defined by the appended claims.
Claims (10)
1. The utility model provides a modular low pressure SVG, APF structure which characterized in that: contain the medium plate, A looks major loop module, B looks major loop module, C looks major loop module, controller module and energy storage capacitor module, A looks major loop module, B looks major loop module and C looks major loop module parallel arrangement are at the upside of medium plate, controller module and energy storage capacitor module set up the downside at the medium plate, A looks major loop module, B looks major loop module and C looks major loop module contain the fuse respectively, the relay, little reactor, big reactor, radiator and IGBT device, the fuse, relay and little reactor concatenate the setting, big reactor and fuse, the tandem structure of relay and little reactor sets up in radiator one end side by side.
2. The modular low-voltage SVG, APF structure of claim 1, wherein: the fuse is provided with a fuse first wiring end and a fuse second wiring end, the relay is provided with a relay first wiring end and a relay second wiring end, the small reactor is provided with a small reactor first wiring end and a small reactor second wiring end, the large reactor is provided with a large reactor first wiring end and a large reactor second wiring end, the IGBT device is provided with a C + wiring end, a Co wiring end, a C-wiring end and an L wiring end, the IGBT device is provided with an IGBT driving plate, and a driving plate connector is arranged on the IGBT driving plate; the first wiring end of fuse is as SVG, APF's external power supply terminal, and the fuse second wiring end links to each other with the first wiring end of relay, and the relay second wiring end links to each other with the first wiring end of little reactor, and little reactor second wiring end links to each other with the first wiring end of big reactor, and big reactor second wiring end links to each other with the L wiring end of IGBT device.
3. The modular low-voltage SVG, APF structure of claim 2, wherein: the radiator comprises radiator comb sheets and a radiator plane, and the IGBT device and the IGBT drive board are arranged on the radiator plane; the large reactor is in a long round barrel shape, a large reactor ventilation hole is formed in the center of the large reactor, and the ventilation direction of the large reactor ventilation hole is parallel to the direction of the radiator comb sheet; the small reactor is in a short cylindrical shape, a small reactor ventilation hole is formed in the center of the small reactor, the ventilation direction of the small reactor ventilation hole is parallel to the comb sheet direction of the radiator, and the small reactor and the large reactor are adjacent to the comb radiator.
4. The modular low-voltage SVG, APF structure of claim 2, wherein: the energy storage capacitor module comprises energy storage capacitors and a capacitor circuit board, the energy storage capacitors are divided into a plurality of groups, capacitor air ducts are arranged among the energy storage capacitors of the groups, the ventilation direction of the capacitor air ducts is parallel to the direction of the comb sheet of the radiator, and the capacitor circuit board is provided with a capacitor C + terminal, a capacitor Co terminal, a capacitor C-terminal, a capacitor zero line terminal and a capacitor board connector.
5. The modular low-voltage SVG, APF structure of claim 4, wherein: the controller module is provided with a first controller connector, a second controller connector, a third controller connector, a fourth controller connector, a fifth controller connector and a sixth controller connector.
6. The modular low-voltage SVG, APF structure of claim 5, wherein: the C + wiring end of the IGBT device is connected with the C + wiring end of the capacitor through a copper bar, the Co wiring end of the IGBT device is connected with the Co wiring end of the capacitor through a copper bar, the C-wiring end of the IGBT device is connected with the C-wiring end of the capacitor through a copper bar, the L wiring end of the IGBT device penetrates through a current sensor through a copper bar and then is connected with the second wiring end of the large reactor, the copper bar connected with the zero line wiring end of the capacitor is used as power supply zero line wiring terminals of SVG and APF, and the first wiring ends of the fuses of the A-phase main loop module, the B-phase main loop module and the C-phase main loop module are respectively used as power supply A-phase, B-phase and C-phase wiring terminals of SVG and APF.
7. The modular low-voltage SVG, APF structure of claim 6, wherein: and a controller first connector, a controller second connector and a controller third connector of the controller module are respectively connected with IGBT drive plate connectors of the A-phase main loop module, the B-phase main loop module and the C-phase main loop module through cables, and a controller fourth connector, a controller fifth connector and a controller sixth connector are respectively connected with a capacitor plate connector, a rear plate connector and a fan connector.
8. The modular low-voltage SVG, APF structure of claim 1, wherein: still contain quick-witted case and apron, the apron sets up and constitutes the cuboid box of both ends open-ended at quick-witted case upside, and medium plate, A looks major loop module, B looks major loop module, C looks major loop module, controller module and energy storage capacitor module all set up in quick-witted incasement.
9. The modular low-voltage SVG, APF structure of claim 8, wherein: the front side of medium plate is provided with the fan module, the rear side of medium plate is provided with the back plate module, the front side of machine case is provided with the front bezel, the rear bezel module is fixed at the rear side of machine case, all be provided with the ventilation hole on back plate module and the front bezel, be provided with A looks outgoing line cover in the back plate module, B looks outgoing line cover, C looks outgoing line cover, zero line connection cover and back plate connector, A looks main loop module, the first wiring end of fuse of B looks main loop module and C looks main loop module stretches into A looks outgoing line cover respectively, do not regard as SVG behind B looks outgoing line cover and the C looks outgoing line cover, APF's power A looks, B looks, C looks wiring terminal, the copper bar that links to each other with condenser zero line connection end stretches into zero line cover as SVG, APF's power zero line binding post.
10. The modular low-voltage SVG, APF structure of claim 8, wherein: the fan module comprises an upper fan, a lower fan and a fan connector, wherein the upper fan is arranged at a position corresponding to the positions of radiators of the A-phase main loop module, the B-phase main loop module and the C-phase main loop module, and the lower fan corresponds to the positions of the controller module and the energy storage capacitor module.
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| CN202111399609.7A CN114156900A (en) | 2021-11-24 | 2021-11-24 | Modular low pressure SVG, APF structure |
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| CN214013639U (en) * | 2020-12-15 | 2021-08-20 | 常州天曼智能科技有限公司 | Static var generator integrates convenient to heat dissipation |
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