CN114156889A - Main loop single-phase module for low-voltage SVG and APF - Google Patents

Main loop single-phase module for low-voltage SVG and APF Download PDF

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Publication number
CN114156889A
CN114156889A CN202111399707.0A CN202111399707A CN114156889A CN 114156889 A CN114156889 A CN 114156889A CN 202111399707 A CN202111399707 A CN 202111399707A CN 114156889 A CN114156889 A CN 114156889A
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CN
China
Prior art keywords
control circuit
circuit board
terminal
connector
reactor
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Pending
Application number
CN202111399707.0A
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Chinese (zh)
Inventor
王宗臣
施磊
夏武
纪陈平
陈佳佳
王春华
李天鹰
薛玲丽
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Jiangsu Modern Electric Technology Co ltd
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Jiangsu Modern Electric Technology Co ltd
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Priority to CN202111399707.0A priority Critical patent/CN114156889A/en
Publication of CN114156889A publication Critical patent/CN114156889A/en
Pending legal-status Critical Current

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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
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
    • H01L23/00—Details of semiconductor or other solid state devices
    • H01L23/34—Arrangements for cooling, heating, ventilating or temperature compensation ; Temperature sensing arrangements
    • H01L23/36—Selection of materials, or shaping, to facilitate cooling or heating, e.g. heatsinks
    • H01L23/367—Cooling facilitated by shape of device
    • 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
    • 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
    • H05K7/20—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
    • 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]
    • 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)
  • Chemical & Material Sciences (AREA)
  • Materials Engineering (AREA)
  • Condensed Matter Physics & Semiconductors (AREA)
  • General Physics & Mathematics (AREA)
  • Computer Hardware Design (AREA)
  • Inverter Devices (AREA)

Abstract

The invention discloses a main loop single-phase module for low-voltage SVG and APF, which comprises a die carrier, a radiator, a large reactor, a small reactor, a relay, a fuse, an external connection protective shell, an IGBT device, an energy storage capacitor group, a filter capacitor, a control circuit board and a current transformer, wherein the radiator, the large reactor, the small reactor, the relay and the fuse are arranged on the upper side of the die carrier, the energy storage capacitor group, the filter capacitor, the control circuit board and the current sensor are arranged on the lower side of the die carrier, the IGBT device is tightly fixed on the lower side of the radiator, and the control circuit board is arranged on the lower side of the radiator and has a distance of not less than 5mm with the lower side of the radiator. The invention has simple structure, convenient installation, safe and reliable operation and low cost.

Description

Main loop single-phase module for low-voltage SVG and APF
Technical Field
The invention relates to a main loop single-phase module, in particular to a main loop single-phase module for low-voltage SVG and APF, belonging to the technical field of SVG and APF.
Background
The low-voltage SVG is used for reactive power control of a low-voltage distribution power grid, so that the electric energy loss of the power grid is reduced, the operation safety and efficiency of the power grid are improved, and the voltage quality of the power grid is improved. The low-voltage APF is used for harmonic treatment of a low-voltage distribution power grid, so that harmonic pollution of the power grid is eliminated, and the power quality of the power grid is improved. The low-voltage SVG and the APF have the same circuit structure and write different programs.
SVG and APF have tens of varieties of electric, electronic and microelectronic elements and hundreds of elements, and factors such as temperature rise, electromagnetic compatibility, volume, cost, reliability, simple operation and maintenance and the like are considered, so the structure is extremely complex. Considering these situations comprehensively, dividing the SVG and the APF into several modules and several modules simplifies the structure of the SVG and the APF, which is beneficial to the improvement of the performance, the reduction of the cost and the convenience of the operation and maintenance.
The SVG and APF main circuits (or primary circuits) have the same A, B, C three phases, and a single-phase main circuit module is designed and manufactured, so that the modularization of the low-voltage SVG and the APF is facilitated, and the key and difficult problems in the modularization of the SVG and the APF are solved.
Disclosure of Invention
The invention aims to solve the technical problem of providing a main circuit single-phase module for low-voltage SVG and APF, which is beneficial to realizing the modular design of the low-voltage SVG and APF.
In order to solve the technical problems, the technical scheme adopted by the invention is as follows:
the utility model provides a main loop single-phase module for low pressure SVG, APF which characterized in that: contain the die carrier, the radiator, big reactor, little reactor, the relay, the fuse, the external connection protecting crust, the IGBT device, energy storage capacitor group, filter capacitor, control circuit board and current transformer, the radiator, big reactor, little reactor, the relay, the fuse sets up the upside at the die carrier, energy storage capacitor group, filter capacitor, control circuit board and current sensor set up the downside at the die carrier, the IGBT device is hugged closely and is fixed on the downside of radiator, control circuit board sets up and is located the radiator downside at the radiator and not less than 5mm with radiator downside interval.
Further, the die carrier comprises a middle plate, a left side plate and a right side plate, wherein the left side plate is perpendicular to the middle plate and fixed on the left side of the middle plate, and the right side plate is perpendicular to the middle plate and fixed on the right side of the middle plate.
Furthermore, the radiator adopts a comb-shaped radiator, the large reactor is perpendicular to the end face of one end of the radiator and is positioned on one side of the die carrier, the small reactor, the relay and the fuse are connected in series along the linear direction and are perpendicular to the end face of one end of the radiator, and the small reactor, the relay and the fuse are positioned on the other side of the die carrier.
Furthermore, a C + terminal, a C-terminal, a Co terminal and an L terminal are arranged on the TGBT device, a C + connection point, a C-connection point, a Co connection point and an L connection point are arranged on the capacitor bank plate, the C + terminal of the IGBT device is connected with the C + connection point of the capacitor bank plate through a connection copper bar, the C-terminal of the IGBT device is connected with the C-connection point of the capacitor bank plate through a connection copper bar, and the Co terminal of the IGBT device is connected with the Co connection point of the capacitor bank plate through a connection copper bar; the large reactor is provided with a first large reactor connection point and a second large reactor connection point, the small reactor is provided with a first small reactor connection point and a second small reactor connection point, the relay is provided with a first relay connection point and a second relay connection point, and the fuse is provided with a first fuse connection point and a second fuse connection point; the connecting copper bar penetrates through the current transformer, the middle plate connects the L terminal of the IGBT device with the first connecting point of the large reactor through a connecting screw, the second connecting point of the large reactor is connected with the first connecting point of the small reactor through the connecting screw, the second connecting point of the small reactor is connected with the first connecting point of the relay, and the second connecting point of the relay is connected with the first connecting point of the fuse protector; the second connecting point of the fuse stretches out of the external connection protective shell to serve as an SVG and APF external power supply connecting terminal, and the L connecting point is connected with zero line connecting terminals of the SVG and the APF.
Furthermore, the filter capacitor is provided with a first welding needle and a second welding needle, the filter capacitor is welded and fixed on a capacitor bank plate through the first welding needle and the second welding needle, the first welding needle is connected with a Co connecting point of the energy storage capacitor bank, and the second welding needle is connected with a first connecting point of the small reactor and a second connecting point of the large reactor.
Further, be provided with the capacitor bank connector on the capacitor bank board, be provided with the relay connector on the relay, the last first connector of control circuit board that is provided with of control circuit board, control circuit board second connector, control circuit board third connector, control circuit board fourth connector and the fifth connector of control circuit board, be provided with the first connector of IGBT on the IGBT device, IGBT second connector, the first connector of control circuit board links to each other with the relay connector, control circuit board second connector links to each other with capacitor group connector, control circuit board third connector links to each other with the first connector of IGBT, control circuit board fourth connector links to each other with IGBT second connector, control circuit board fifth connector connects to SVG outward, APF complete machine circuit.
Furthermore, an upper front plate and an upper rear plate are arranged on the die carrier, the fan is fixed on the upper front plate and corresponds to the radiator in position, the control circuit board is provided with a sixth plug-in of the control circuit board, a power line of the fan is connected with the sixth plug-in of the control circuit board, and an external wiring protective shell is arranged on the upper rear plate.
Further, the energy storage capacitor group is divided into first energy storage capacitor group and second energy storage capacitor group that capacity equals, one side of capacitor bank board is the zero terminal copper foil, half of opposite side of capacitor bank board is the positive terminal copper foil, the other half of opposite side of capacitor bank board is the negative terminal copper foil, electrical insulation between positive terminal copper foil and the negative terminal copper foil, first energy storage capacitor group sets up in positive terminal copper foil position and the positive pole of first energy storage capacitor group connects the positive terminal copper foil, the zero terminal copper foil is connected to the negative pole of first energy storage capacitor group, the zero terminal copper foil is connected to the positive pole of second energy storage capacitor group, the negative pole of second energy storage capacitor group connects the negative terminal copper foil.
Further, condenser bank board left side border is provided with and is no less than three left concatenation terminal, and condenser bank board right side border is provided with and is no less than three right concatenation terminal, and left concatenation terminal and right concatenation terminal are used for modularization SVG, APF's complete machine to assemble.
Compared with the prior art, the invention has the following advantages and effects: the single-phase module of the main loop for the low-voltage SVG and the APF has the advantages that the single phase in the three-phase main loop of the SVG and the APF is subjected to modular design, and reasonable structural layout and connection are adopted, so that the whole single-phase module has a simple structure, is convenient to install, is safe and reliable to operate, is low in cost, is beneficial to modular design and manufacture of the low-voltage SVG and the APF, and the integral cost ratio of the modular SVG and the APF is improved.
Drawings
Fig. 1 is a schematic diagram of a main loop single-phase module for low-voltage SVG, APF of the present invention.
Fig. 2 is a schematic diagram of another direction of the main loop single-phase module for low-voltage SVG, APF of the present invention.
Fig. 3 is a schematic diagram of an energy storage capacitor bank 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 main circuit single-phase module for low-voltage SVG and APF of the present invention includes a mold frame 1, a heat sink 2, a large reactor 3, a small reactor 4, a relay 5, a fuse 6, an external connection protective case 7, an IGBT device 8, an energy storage capacitor bank 9, a filter capacitor 10, a control circuit board 11, and a current transformer 12. The die carrier 1 comprises a middle plate 13, a left side plate 14 and a right side plate 15, wherein the left side plate 14 is perpendicular to the middle plate 13 and fixed on the left side of the middle plate 13, the right side plate 15 is perpendicular to the middle plate 13 and fixed on the right side of the middle plate 13, and the left side plate 14 and the right side plate 15 are both positioned on the lower side of the middle plate 13. Radiator 2, big reactor 3, little reactor 4, relay 5, fuse 6 calorific capacity is big in the operation, consequently set up the upside at the medium plate, energy storage capacitor group 9, filter capacitor 10, control circuit board 11 and current sensor 12 operation calorific capacity are little, consequently, set up the downside at the medium plate, IGBT device 8 operation calorific capacity is big, hug closely and fix on the downside of radiator 2, control circuit board 11 sets up and is located radiator 2 downside and is not less than 5mm with radiator 2 downside interval at radiator 2, be favorable to insulating and ventilation.
The radiator 2 adopts a comb-shaped radiator, the large reactor 3 is perpendicular to the end face of one end of the radiator 2 and is positioned on one side of the die carrier 1, the small reactor 4, the relay 5 and the fuse 6 are connected in series along the linear direction and are perpendicular to the end face of one end of the radiator 2, and the small reactor 4, the relay 5 and the fuse 6 are positioned on the other side of the die carrier 1. The large reactor 3 and the small reactor 4 are both disposed close to the radiator 2. The fuse 6 with large heat productivity, the relay 5, the small reactor 4, the comb-shaped radiator 2 and the large reactor 3 are arranged in a reverse U shape on the whole.
The TGBT device 8 is provided with a C + terminal 16, a C-terminal 17, a Co terminal 18 and an L terminal 19, a capacitor bank plate 33 is provided with a C + connection point 21, a C-connection point 22, a Co connection point 23 and an L connection point 36, the C + terminal 16 of the IGBT device 8 is connected with the C + connection point 21 of the capacitor bank plate 33 through a connection copper bar 20, the C-terminal 17 of the IGBT device 8 is connected with the C-connection point 22 of the capacitor bank plate 33 through the connection copper bar 20, and the Co terminal 18 of the IGBT device 8 is connected with the Co connection point 23 of the capacitor bank plate 33 through the connection copper bar 20. The large reactor 3 is provided with a large reactor first connection point 24 and a large reactor second connection point 25, the small reactor 4 is provided with a small reactor first connection point 26 and a small reactor second connection point 27, the relay 5 is provided with a relay first connection point 28 and a relay second connection point 29, and the fuse 6 is provided with a fuse first connection point 30 and a fuse second connection point 31. The connecting copper bar 20 penetrates through the current transformer 12 and the middle plate 13 to connect the L terminal 19 of the IGBT device 8 with the first connecting point 24 of the large reactor by using a connecting screw 32, the second connecting point 25 of the large reactor is connected with the first connecting point 26 of the small reactor by using the connecting screw 32, the second connecting point 27 of the small reactor is connected with the first connecting point 28 of the relay, and the second connecting point 29 of the relay is connected with the first connecting point 30 of the fuse; the second connecting point 31 of the fuse stretches out of the external wiring protective shell 7 to serve as an SVG (static var generator) and APF (active power filter) external power supply connecting terminal, and the L connecting point 36 is connected with zero line connecting terminals of the SVG and the APF.
The filter capacitor 10 is provided with a first welding needle 34 and a second welding needle 35, the filter capacitor 10 is welded and fixed on the capacitor bank board 33 through the first welding needle 34 and the second welding needle 35, the first welding needle 34 is connected with the Co connection point 23 of the energy storage capacitor bank 9, and the second welding needle 35 is connected with the small reactor first connection point 26 and the large reactor second connection point 25.
The capacitor group board 33 is provided with a capacitor group plug-in unit 37, the relay 5 is provided with a relay plug-in unit 38, the control circuit board 11 is provided with a control circuit board first plug-in unit 39, a control circuit board second plug-in unit 40, a control circuit board third plug-in unit 41, a control circuit board fourth plug-in unit 42 and a control circuit board fifth plug-in unit 43, the IGBT device 8 is provided with an IGBT first plug-in unit 44 and an IGBT second plug-in unit 45, the control circuit board first plug-in unit 39 is connected with the relay plug-in unit 38, the control circuit board second plug-in unit 40 is connected with the capacitor group plug-in unit 37, the control circuit board third plug-in unit 41 is connected with the IGBT first plug-in unit 44, the control circuit board fourth plug-in unit 42 is connected with the IGBT second plug-in unit 45, and the control circuit board fifth plug-in unit 43 is externally connected with SVG and APF complete machine circuits.
An upper front plate 46 and an upper rear plate 47 are arranged on the die carrier 1, a fan 48 is fixed on the upper front plate 46 and corresponds to the position of the radiator 2, a control circuit board sixth plug-in 49 is arranged on the control circuit board 11, a power line of the fan 48 is connected with the control circuit board sixth plug-in 49, and an external wiring protective shell 7 is arranged on the upper rear plate 47.
Energy-storing capacitor group 9 divides into the first energy-storing capacitor group 50 and the second energy-storing capacitor group 51 that capacity equals, one side of capacitor group board 33 is the zero terminal copper foil, half the positive terminal copper foil that is of the opposite side of capacitor group board 33, half the opposite side of capacitor group board 33 is the negative terminal copper foil, electrical insulation between positive terminal copper foil and the negative terminal copper foil, first energy-storing capacitor group 50 sets up in positive terminal copper foil position and the positive terminal copper foil is connected to the positive pole of first energy-storing capacitor group 50, zero terminal copper foil is connected to the negative pole of first energy-storing capacitor group 50, zero terminal copper foil is connected to the positive pole of second energy-storing capacitor group 51, negative terminal copper foil is connected to the negative pole of second energy-storing capacitor group 51. Capacitor bank board 33 left side border is provided with and is no less than three left concatenation terminal 52, and capacitor bank board 33 right side border is provided with and is no less than three right concatenation terminal 53, and left side concatenation terminal 52 and right concatenation terminal 53 are used for modularization SVG, APF's complete machine to assemble.
The single-phase module of the main loop for the low-voltage SVG and the APF has the advantages that the single phase in the three-phase main loop of the SVG and the APF is subjected to modular design, and reasonable structural layout and connection are adopted, so that the whole single-phase module has a simple structure, is convenient to install, is safe and reliable to operate, is low in cost, is beneficial to modular design and manufacture of the low-voltage SVG and the APF, and the integral cost ratio of the modular SVG and the APF is improved.
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 (9)

1. The utility model provides a main loop single-phase module for low pressure SVG, APF which characterized in that: contain the die carrier, the radiator, big reactor, little reactor, the relay, the fuse, the external connection protecting crust, the IGBT device, energy storage capacitor group, filter capacitor, control circuit board and current transformer, the radiator, big reactor, little reactor, the relay, the fuse sets up the upside at the die carrier, energy storage capacitor group, filter capacitor, control circuit board and current sensor set up the downside at the die carrier, the IGBT device is hugged closely and is fixed on the downside of radiator, control circuit board sets up and is located the radiator downside at the radiator and not less than 5mm with radiator downside interval.
2. The main loop single-phase module for low-voltage SVG, APF according to claim 1, wherein: the die carrier comprises a middle plate, a left side plate and a right side plate, wherein the left side plate is perpendicular to the middle plate and fixed on the left side of the middle plate, and the right side plate is perpendicular to the middle plate and fixed on the right side of the middle plate.
3. The main loop single-phase module for low-voltage SVG, APF according to claim 1, wherein: the radiator adopts the pectination radiator, and big reactor is perpendicular to radiator one end terminal surface and sets up and be located die carrier one side, and little reactor, relay and fuse concatenate along the straight line direction and perpendicular to radiator one end terminal surface sets up, and little reactor, relay and fuse are located the die carrier opposite side.
4. The main loop single-phase module for low-voltage SVG, APF according to claim 1, wherein: the TGBT device is provided with a C + terminal, a C-terminal, a Co terminal and an L terminal, the capacitor bank plate is provided with a C + connection point, a C-connection point, a Co connection point and an L connection point, the C + terminal of the IGBT device is connected with the C + connection point of the capacitor bank plate through a connection copper bar, the C-terminal of the IGBT device is connected with the C-connection point of the capacitor bank plate through a connection copper bar, and the Co terminal of the IGBT device is connected with the Co connection point of the capacitor bank plate through a connection copper bar; the large reactor is provided with a first large reactor connection point and a second large reactor connection point, the small reactor is provided with a first small reactor connection point and a second small reactor connection point, the relay is provided with a first relay connection point and a second relay connection point, and the fuse is provided with a first fuse connection point and a second fuse connection point; the connecting copper bar penetrates through the current transformer, the middle plate connects the L terminal of the IGBT device with the first connecting point of the large reactor through a connecting screw, the second connecting point of the large reactor is connected with the first connecting point of the small reactor through the connecting screw, the second connecting point of the small reactor is connected with the first connecting point of the relay, and the second connecting point of the relay is connected with the first connecting point of the fuse protector; the second connecting point of the fuse stretches out of the external connection protective shell to serve as an SVG and APF external power supply connecting terminal, and the L connecting point is connected with zero line connecting terminals of the SVG and the APF.
5. The main loop single-phase module for low-voltage SVG, APF of claim 4, wherein: the filter capacitor is provided with a first welding needle and a second welding needle, the filter capacitor is welded and fixed on a capacitor bank plate through the first welding needle and the second welding needle, the first welding needle is connected with a Co connecting point of the energy storage capacitor bank, and the second welding needle is connected with a first connecting point of the small reactor and a second connecting point of the large reactor.
6. The main loop single-phase module for low-voltage SVG, APF of claim 4, wherein: be provided with the capacitor bank connector on the capacitor bank board, be provided with the relay connector on the relay, the last first connector of control circuit board that is provided with of control circuit board, control circuit board second connector, control circuit board third connector, control circuit board fourth connector and control circuit board fifth connector, be provided with the first connector of IGBT on the IGBT device, IGBT second connector, the first connector of control circuit board links to each other with the relay connector, control circuit board second connector links to each other with capacitor group connector, control circuit board third connector links to each other with the first connector of IGBT, control circuit board fourth connector links to each other with IGBT second connector, control circuit board fifth connector connects to SVG outward, APF complete machine circuit.
7. The main loop single-phase module for low-voltage SVG, APF according to claim 6, wherein: the fan is fixed on the upper front plate and corresponds to the radiator in position, the control circuit board is provided with a sixth control circuit board plug-in unit, a power line of the fan is connected with the sixth control circuit board plug-in unit, and the external wiring protective shell is arranged on the upper rear plate.
8. The main loop single-phase module for low-voltage SVG, APF of claim 4, wherein: energy-storage capacitor group divide into the first energy-storage capacitor group that capacity equals and the second energy-storage capacitor group, one side of capacitor bank board is the zero terminal copper foil, half is the positive terminal copper foil of opposite side of capacitor bank board, the second half is the negative terminal copper foil of opposite side of capacitor bank board, electrical insulation between positive terminal copper foil and the negative terminal copper foil, first energy-storage capacitor group sets up in positive terminal copper foil position and the positive pole of first energy-storage capacitor group connects the positive terminal copper foil, the zero terminal copper foil is connected to the negative pole of first energy-storage capacitor group, the zero terminal copper foil is connected to the positive pole of second energy-storage capacitor group, the negative terminal copper foil is connected to the negative pole of second energy-storage capacitor group.
9. The main loop single-phase module for low-voltage SVG, APF according to claim 8, wherein: capacitor bank board left side border is provided with and is no less than three left concatenation terminal, and capacitor bank board right side border is provided with and is no less than three right concatenation terminal, and left side concatenation terminal and right concatenation terminal are used for modularization SVG, APF's complete machine to assemble.
CN202111399707.0A 2021-11-24 2021-11-24 Main loop single-phase module for low-voltage SVG and APF Pending CN114156889A (en)

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Application Number Priority Date Filing Date Title
CN202111399707.0A CN114156889A (en) 2021-11-24 2021-11-24 Main loop single-phase module for low-voltage SVG and APF

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202111399707.0A CN114156889A (en) 2021-11-24 2021-11-24 Main loop single-phase module for low-voltage SVG and APF

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CN114156889A true CN114156889A (en) 2022-03-08

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CN202111399707.0A Pending CN114156889A (en) 2021-11-24 2021-11-24 Main loop single-phase module for low-voltage SVG and APF

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114121481A (en) * 2021-11-24 2022-03-01 江苏现代电力科技股份有限公司 Energy storage and filter capacitor assembly for modular low-voltage SVG and APF

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114121481A (en) * 2021-11-24 2022-03-01 江苏现代电力科技股份有限公司 Energy storage and filter capacitor assembly for modular low-voltage SVG and APF

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