CN105911402A - Electronic island tester for wind and light grid-connected inverter - Google Patents
Electronic island tester for wind and light grid-connected inverter Download PDFInfo
- Publication number
- CN105911402A CN105911402A CN201610511903.5A CN201610511903A CN105911402A CN 105911402 A CN105911402 A CN 105911402A CN 201610511903 A CN201610511903 A CN 201610511903A CN 105911402 A CN105911402 A CN 105911402A
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- China
- Prior art keywords
- installing plate
- galvanized sheet
- tester
- power supply
- mounting plate
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Inverter Devices (AREA)
Abstract
The invention discloses an electronic island tester for a wind and light grid-connected inverter. The electronic island tester comprises a galvanized sheet shell, wherein a handle and electrical components are arranged on an outer wall of the galvanized sheet shell; rollers are arranged at the bottom of the galvanized sheet shell; an upper layer area and a lower layer area are formed on one side inside the galvanized sheet shell; a first mounting plate is connected into the upper layer area; a switching power supply, a voltage sensor, a first switching power supply, a second switching power supply and a master controller are mounted on the first mounting plate; wiring slots are formed in two sides of the master controller; a second mounting plate is arranged on one side of the first mounting plate; a voltage sensor, a switching power supply, wiring terminals, an intermediate relay, an isolation transformer and a resistor are mounted on the second mounting plate; due to the first mounting plate and the second mounting plate, high/low-voltage electronic control components are wired separately. The electronic island tester disclosed by the invention is convenient to mount and move and simple in structure, and due to a layered arrangement manner, the equipment is protected, so that the equipment has high heat dissipation property.
Description
Technical field
The present invention relates to survey electronics isolated island tester technical field, particularly relate to a kind of electricity for scene combining inverter
Sub-isolated island tester.
Background technology
Along with the rise of the development and utilization of the new forms of energy with photovoltaic, wind-power electricity generation etc. as representative, parallel network reverse technology obtains
Arrive development at a high speed.The assay device of power electronics isolated island detection at present mainly uses adjustable RLC shunt load to simulate
Island load.The resistance of this load simulating device, inductance, electric capacity even load size use mechanical switch to adjust to be needed a lot
The combination of components and parts, due to fault or the reason such as artificial, combining inverter is likely to be at island operation state, to personal safety,
Equipment etc. form potential threat, and therefore, combining inverter must possess the detection of reliable isolated island and defencive function.Under prior art
Isolated island test experience device mainly use adjustable RLC shunt load to simulate island load, wherein regulative mode is many
Mechanical switch realizes, and the active power of load passes through resistance consumption completely.This device not only life-span is low, cost is high, also disappears
Consume substantial amounts of electric energy, cause environmental pollution, and volume is big, Heavy Weight, is not easy to mobile, particularly with on-the-spot isolated island detection,
Existing apparatus is difficult to meet requirement.
Summary of the invention
The invention aims to solve shortcoming present in prior art, and the one proposed is grid-connected inverse for scene
Become the electronics isolated island tester of device.
To achieve these goals, present invention employs following technical scheme:
A kind of electronics isolated island tester for scene combining inverter, including galvanized sheet housing, outside described galvanized sheet housing
Wall is provided with handle and electric components, and the bottom of described galvanized sheet housing is provided with roller, a sidewall of described galvanized sheet housing
On by first securing member connect have panel beating, described panel beating to be provided with ventilation network interface, the lower section of described panel beating is provided with air vent, institute
Stating air vent to be positioned on galvanized sheet housing, described galvanized sheet enclosure interior side is provided with top regions and district of lower floor, described top regions
Interior connection has the first installing plate, described first installing plate is provided with Switching Power Supply, voltage sensor, the first Switching Power Supply,
Two Switching Power Supplies and master controller, the both sides of described master controller are provided with wire casing, and described first installing plate is provided with long lumbar hole, institute
The side stating the first installing plate is provided with the second installing plate, described second installing plate is provided with voltage sensor, Switching Power Supply, connects
Line terminals, auxiliary reclay, isolating transformer and resistance, described first installing plate and the second installing plate be in same plane, and
The cabling of the components and parts on one installing plate also passes through wire casing, makes high and low pressure electric control element separate cabling, and district of described lower floor is provided with
3rd installing plate, described 3rd installing plate is fixedly connected with radiator, described radiator is fixedly connected with stack bus bar and
IGBT module, the side of described 3rd installing plate is provided with the 4th installing plate, described 4th installing plate be provided with electric capacity, reactor,
Catalyst and reactor, described galvanized sheet inner walls is fixedly connected with insulation board and insulation board, described first copper bar and
Two copper bars lay respectively on the first insulation board and the second insulation board, and are provided with square through hole below the first copper bar and the second copper bar,
Described handle and roller lay respectively at cabinet top and bottom, can deal with the mobile demand of different link, such as can on level land
To carry out mobile device with roller, mobile device can be carried out by handle when up/down steps.
Preferably, in described internal structure, the components and parts such as installing plate and master controller thereon can beaten in the range of degree
Open or close and close, it is only necessary to pulling out several winding displacements can realize, and facilitates the I&M of the devices such as IGBT module.
Preferably, described master controller etc. is arranged on the installing plate that can raise, with forceful electric power device and the height in district of lower floor
Piezoelectricity is not in same aspect, and the installing plate of steel can isolate levels.
Preferably, described in modular assembly, employ the stack bus bar of low sense, enter the positive and negative of IGBT module simultaneously
It is connected to Absorption Capacitance on terminal, thus decreases the switch overvoltage of IGBT module, reduce voltage stress, improve reliable
Property.
Preferably, the middle part of described galvanized sheet housing is provided with cooling wind, and described cooling blower uses the little wind of multiple stage low noise
Machine, described cooling wind front portion air intake, cool down IGBT module with radiator, rear end goes out the components and parts such as air cooling filter reactor,
The cooling requirements of equipment is met while reducing noise.
In the present invention, the layering of tester inner member and modularity make tester assemble rationally, is prone to extension safeguard and
Manufacturing and install, its structure is the compactest；Tester has the speciality of mobility, it is possible to meet wanting of various test site
Asking, light small and exquisite being prone to shifts；In tester, each components and parts optimize electrical connection according to the flow direction of main circuit current when installing,
Make internal Wiring structure the simplest；The heat dissipation wind channel of tester is provided with air inlet, air outlet and return air outlet, can make inside
Each components and parts obtain good heat radiation protection；Design through electric parameter optimization, have employed high frequency at filter segment especially
Change design, thus substantially reduce wave filter and the volume and weight of whole device；The only former RLC isolated island test of loss simultaneously
Device about 3%, major part energy-feedback power grid, thus greatly reduce the cost of radiator portion, volume and weight, it is simple to peace
Filling and mobile, simple structure, the setting of layering protects equipment, makes equipment possess good thermal diffusivity.
Accompanying drawing explanation
Fig. 1 is the internal structure upper strata of a kind of electronics isolated island tester for scene combining inverter that the present invention proposes
Schematic diagram；
Fig. 2 is the front view of a kind of electronics isolated island tester for scene combining inverter that the present invention proposes；
Fig. 3 is the rearview of a kind of electronics isolated island tester for scene combining inverter that the present invention proposes；
Fig. 4 is the structure right view of a kind of electronics isolated island tester for scene combining inverter that the present invention proposes；
Fig. 5 is the internal structure lower floor signal of a kind of electronics isolated island tester for scene combining inverter that the present invention proposes
Figure；
Fig. 6 is that a kind of internal structure backsight for the electronics isolated island tester of scene combining inverter that the present invention proposes is external
Wiring schematic diagram.
In figure: 1 handle, 2 electric components, 3 bearing rollers, 4 panel beatings, 5 first installing plates, 6 Switching Power Supplies, 7 voltages pass
Sensor, 8 first Switching Power Supplies, 9 second switch power supplys, 10 master controllers, 11 second installing plates, 12 voltage sensors, 13 switches
Power supply, 14 binding posts, 15 auxiliary reclays, 16 isolating transformers, 17 resistance, 18 wire casings, 19 radiators, 20 the 3rd installations
Plate, 21 busbars, 22 IGBT module, 23 electric capacity, 24 reactors, 25 catalysts, 26 reactors, 27 the 4th installing plates, 28 first bronze medals
Row, 29 first insulation boards, 30 second copper bars, 31 2 insulation boards.
Detailed description of the invention
Reference Fig. 1-6, a kind of electronics isolated island tester for scene combining inverter, including galvanized sheet housing, zinc-plated
The outer wall of plate housing is provided with handle 1 and electric components 2, and the bottom of galvanized sheet housing is provided with roller 3, the one of galvanized sheet housing
Being connected by the first securing member on sidewall has panel beating 4, panel beating 4 to be provided with ventilation network interface, and the lower section of panel beating 4 is provided with air vent, logical
Air holes is positioned on galvanized sheet housing, and galvanized sheet enclosure interior side is provided with top regions and district of lower floor, and connecting in top regions has first
Installing plate 5, the first installing plate 5 is provided with Switching Power Supply 6, voltage sensor the 7, first Switching Power Supply 8, second switch power supply 9
With master controller 10, the both sides of master controller 10 are provided with wire casing 18, and the first installing plate 5 is provided with long lumbar hole, the first installing plate 5
Side is provided with the second installing plate 11, the second installing plate 11 is provided with voltage sensor 12, Switching Power Supply 13, binding post 14,
Auxiliary reclay 15, isolating transformer 16 and resistance 17, the first installing plate 11 and the second installing plate 5 be in same plane, and first
The cabling of the components and parts on installing plate 11 also passes through wire casing 18, makes high and low pressure electric control element separate cabling, and district of lower floor is provided with
Three installing plates 20, the 3rd installing plate 20 is fixedly connected with radiator 19, and radiator 19 is fixedly connected with stack bus bar 21 He
IGBT module 22, the side of the 3rd installing plate 20 is provided with the 4th installing plate 27, and the 4th installing plate 27 is provided with electric capacity 23, reactor
24, catalyst 25 and reactor 26, galvanized sheet inner walls is fixedly connected with insulation board 29 and insulation board 31, the first copper bar 28
Lay respectively on the first insulation board 29 and the second insulation board 31 with the second copper bar 30, and below the first copper bar 28 and the second copper bar 30
It is provided with square through hole, handle 1 and roller 3 and lays respectively at cabinet top and bottom, the mobile demand of different link, example can be dealt with
As mobile device can be carried out with roller on level land, mobile device can be carried out by handle when up/down steps, internal structure is pacified
The dress components and parts such as plate 5 and master controller thereon 10 can open or close in the range of 0 to 90 degree, it is only necessary to pulls out several winding displacements
Can realize, facilitate the I&M of IGBT module 22 device such as grade, master controller 10 etc. is arranged on the installing plate 5 that can raise
On, with the forceful electric power device in district of lower floor and high-tension electricity not in same aspect, and the installing plate 5 of steel can isolate levels,
In modular assembly, employ the stack bus bar 21 of low sense, be connected to absorb electricity simultaneously in the positive and negative terminals entering IGBT module 22
Hold, thus decrease the switch overvoltage of IGBT module 22, reduce voltage stress, improve reliability, galvanized sheet housing
Middle part is provided with cooling wind, and cooling blower uses the little blower fan of multiple stage low noise, cooling wind front portion air intake, cools down IGBT with radiator 19
Module 22, rear end goes out the components and parts such as air cooling filter reactor, meets the cooling requirements of equipment while reducing noise, if
The layering of standby inner member and modularity make tester assemble rationally, are prone to extension maintenance and manufacture install, and its structure is more closed
Manage compact；Equipment has the speciality of mobility, it is possible to meet the requirement of various test site, and light small and exquisite being prone to shifts；If
Standby each components and parts interior optimize electrical connection according to the flow direction of main circuit current when installing, and make internal Wiring structure the simplest；
The heat dissipation wind channel of equipment is provided with air inlet, air outlet and return air outlet, and each components and parts internal can be made well to be dispelled the heat
Protection；Design through electric parameter optimization, have employed high frequency design at filter segment especially, thus substantially reduce filtering
Device and the volume and weight of whole device；The only former RLC isolated island test device about 3% of loss simultaneously, major part energy feedback
Electrical network, thus greatly reduce the cost of radiator portion, volume and weight, it is simple to install and move, simple structure, setting of layering
Put the equipment of protecting, make equipment possess good thermal diffusivity.
Operation principle: the layering of device interior element and modularity make tester assemble rationally, are prone to extension maintenance and system
Making installation, its structure is the compactest；Equipment has the speciality of mobility, it is possible to meet the requirement of various test site,
Light small and exquisite being prone to shifts；In equipment, each components and parts optimize electrical connection according to the flow direction of main circuit current when installing, in making
Portion's Wiring structure is the simplest；The heat dissipation wind channel of equipment is provided with air inlet, air outlet and return air outlet, can make each yuan internal
Device obtains good heat radiation protection；Design through electric parameter optimization, have employed high frequency design at filter segment especially,
Thus substantially reduce wave filter and the volume and weight of whole device；The only former RLC isolated island test device 3% of loss simultaneously
Left and right, major part energy-feedback power grid, thus greatly reduce the cost of radiator portion, volume and weight.
The above, the only present invention preferably detailed description of the invention, but protection scope of the present invention is not limited thereto,
Any those familiar with the art in the technical scope that the invention discloses, according to technical scheme and
Inventive concept equivalent or change in addition, all should contain within protection scope of the present invention.
Claims (3)
1. for an electronics isolated island tester for scene combining inverter, including galvanized sheet housing, it is characterised in that described plating
The outer wall of zine plate housing is provided with handle (1) and electric components (2), and the bottom of described galvanized sheet housing is provided with roller (3), institute
Stating to be connected by the first securing member on a sidewall of galvanized sheet housing has panel beating (4), described panel beating (4) to be provided with ventilation network interface,
The lower section of described panel beating (4) is provided with air vent, and described air vent is positioned on galvanized sheet housing, described galvanized sheet enclosure interior side
Being provided with top regions and district of lower floor, connecting in described top regions has the first installing plate (5), and described first installing plate (5) is provided with
Switching Power Supply (6), voltage sensor (7), the first Switching Power Supply (8), second switch power supply (9) and master controller (10), described
The both sides of master controller (10) are provided with wire casing (18), and described first installing plate (5) is provided with long lumbar hole, described first installing plate
(5) side is provided with the second installing plate (11), and described second installing plate (11) is provided with voltage sensor (12), Switching Power Supply
(13), binding post (14), auxiliary reclay (15), isolating transformer (16) and resistance (17), described first installing plate (11)
Being in same plane with the second installing plate (5), the cabling of the components and parts on the first installing plate (11) also passes through wire casing (18), makes
High and low pressure electric control element separates cabling, and district of described lower floor is provided with the 3rd installing plate (20), and described 3rd installing plate (20) is upper solid
Determine connection and have radiator (19), described radiator (19) is fixedly connected with stack bus bar (21) and IGBT module (22), described
The side of the 3rd installing plate (20) is provided with the 4th installing plate (27), and described 4th installing plate (27) is provided with electric capacity (23), reactance
Device (24), catalyst (25) and reactor (26), described galvanized sheet inner walls is fixedly connected with insulation board (29) and insulation
Plate (31), described first copper bar (28) and the second copper bar (30) lay respectively at the first insulation board (29) and the second insulation board (31)
On, and the first copper bar (28) and the second copper bar (30) lower section be provided with square through hole, described handle (1) and roller (3) and lay respectively at
Cabinet top and bottom, the middle part of described galvanized sheet housing is provided with cooling wind, and described cooling blower uses the little wind of multiple stage low noise
Machine, described cooling wind front portion air intake, with radiator (19) cooling IGBT module (22), rear end goes out the units such as air cooling filter reactor
Device, described in modular assembly, employ the stack bus bar (21) of low sense, simultaneously at the positive and negative terminal entering IGBT module (22)
Absorption Capacitance it is connected on son.
A kind of electronics isolated island tester for scene combining inverter the most according to claim 1, it is characterised in that institute
State the components and parts such as installing plate in internal structure (5) and master controller thereon (10) to beat and open or close in the range of 0 to 90 degree
Close.
A kind of electronics isolated island tester for scene combining inverter the most according to claim 2, it is characterised in that institute
State master controller (10) etc. to be arranged on the installing plate (5) that can raise, with the forceful electric power device in district of lower floor and high-tension electricity not with
One aspect, and the installing plate (5) of steel can isolate levels.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610511903.5A CN105911402A (en) | 2016-07-01 | 2016-07-01 | Electronic island tester for wind and light grid-connected inverter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610511903.5A CN105911402A (en) | 2016-07-01 | 2016-07-01 | Electronic island tester for wind and light grid-connected inverter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105911402A true CN105911402A (en) | 2016-08-31 |
Family
ID=56754730
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610511903.5A Withdrawn CN105911402A (en) | 2016-07-01 | 2016-07-01 | Electronic island tester for wind and light grid-connected inverter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105911402A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108802515A (en) * | 2018-04-05 | 2018-11-13 | 董晨晖 | A kind of electric power network adaptive testing device |
-
2016
- 2016-07-01 CN CN201610511903.5A patent/CN105911402A/en not_active Withdrawn
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108802515A (en) * | 2018-04-05 | 2018-11-13 | 董晨晖 | A kind of electric power network adaptive testing device |
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| PB01 | Publication | ||
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Application publication date: 20160831 |