CN206481060U - A kind of inverter and box type transformer integration apparatus - Google Patents
A kind of inverter and box type transformer integration apparatus Download PDFInfo
- Publication number
- CN206481060U CN206481060U CN201621181299.6U CN201621181299U CN206481060U CN 206481060 U CN206481060 U CN 206481060U CN 201621181299 U CN201621181299 U CN 201621181299U CN 206481060 U CN206481060 U CN 206481060U
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- China
- Prior art keywords
- breaker
- inverter
- electrical apparatus
- combined electrical
- unit
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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
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A30/00—Adapting or protecting infrastructure or their operation
- Y02A30/60—Planning or developing urban green infrastructure
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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
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/50—Photovoltaic [PV] energy
- Y02E10/56—Power conversion systems, e.g. maximum power point trackers
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- Inverter Devices (AREA)
- Supply And Distribution Of Alternating Current (AREA)
Abstract
The utility model proposes a kind of inverter and box type transformer integration apparatus (1), the integration apparatus sets the integration of equipments such as inverter unit, double transformer with split windings (4), combined electrical apparatus (5), the input of the inverter unit receives the direct current energy that photovoltaic module is provided, and the alternating current for being converted into receiving for double transformer with split windings (4) by the electric energy, this pair of transformer with split winding (4) is by the exchange electric boost of reception, and appropriate voltage is ultimately converted to, power network is then sent into by combined electrical apparatus (5).The inverter and box type transformer integration apparatus (1) meet outdoor installation use, integration degree is higher, can reduce equipment cost and cost of transportation, the live civil engineering amount of reduction and time, the reliability of equipment is improved, with stronger practicality.
Description
Technical field
The utility model is related to a kind of photovoltaic inversion boosting integrated equipment, belongs to photovoltaic generating system inversion, boosting one
Change the technical field of equipment.
Background technology
Solar energy power generating occupies the important seat of world energy sources consumption, can be widely used for each neck of social life
Domain.So the economy of photo-voltaic power generation station construction investment, the stability of operation increasingly attract attention.Inverter and box-type transformation
Device is directly connected to quality of power supply when photo-voltaic power generation station is normally run and reliable as the nucleus equipment of whole photo-voltaic power generation station
Property.It is a unit that present large-sized photovoltaic power station Converting Unit, which is substantially according to 1MW, mainly by outdoor header box, box
Inversion room (including two 500kW inverters), box type transformer (including the double transformer with split windings of 1 1MW) composition.
In the design of current photo-voltaic power generation station, box inverter room and box type transformer are independent electric as two sets
Equipment arranges that they are provided by different producers, and in engineer applied, two equipment are required for pouring the mixed mud of independent reinforcing bar
Earth foundation, is separated by certain mounting distance each other, is connected using three-phase alternating current cable.
Fig. 1 gives the electrical schematic diagram in box inverter room and box type transformer in existing photovoltaic system.Box inversion
Device room and box type transformer are independently arranged, and two inverter low-pressure sides in box inverter room are by cable, the double divisions of access
Transformer, then accesses power network or the medium voltage network in power station by combined electrical apparatus.
This design is primarily present following deficiency：
Firstth, it is spaced in two device spaces relatively closely, causes to reuse partial electric device, causes device application waste
And there is certain energy loss；
Secondth, connected between box inverter room and box type transformer using electric cable with large cross-section, pole is laid in site operation
For inconvenience, the unreliable of connection is likely to result in；
3rd, box inverter room and box type transformer as two equipment, it is necessary to pour two reinforced concrete bases,
Add engineering time and cost.
Utility model content
For above-mentioned deficiency of the prior art, the utility model provides a kind of photovoltaic inversion boosting integration apparatus,
Inverter and double transformer with split windings is integrally disposed, eliminate in conventional photovoltaic power station input side in double transformer with split windings (
Claim low-pressure side) breaker, the lightning protection device of lightning protection device and inverter outlet side.So that layout designs more rationally,
Security, the stability in power station are further increased, equipment cost and field engineering amount is reduced.
The utility model embodiment provides a kind of inverter and box type transformer integration apparatus, including the first inverter
(2), the second inverter (3), double transformer with split windings (4) and combined electrical apparatus (5), first inverter (2) include first
AC/DC converting unit (6), the first breaker (13) and the 3rd breaker (15), second inverter (3) include
Second AC/DC converting unit (7), the second breaker (14) and the 4th breaker (16), it is characterised in that：Described first is inverse
Become device (2), the second inverter (3), double transformer with split windings (4) and combined electrical apparatus (5) integrally disposed；First inverter (2) and
The input of two inverters (3) connects photovoltaic group by first breaker (13) and second breaker (14) respectively
Part, its output end is directly connected in described double points by the 3rd breaker (15) and the 4th breaker (16) respectively
The low-pressure side of fission depressor (4)；The input side of the outlet side connection combined electrical apparatus (5) of described pair of transformer with split winding (4), described group
The outlet side for closing electrical equipment (5) is connected with power network, realizes the conveying to electric energy.
It is preferred that also including：First monitoring inverter unit, it is supervised to the first AC/DC converting unit
Control, realizes the control at least one breaker in first breaker, the 3rd breaker；Second monitoring inverter list
Member, it is monitored to the second AC/DC converting unit, realizes in second breaker, the 4th breaker
The control of at least one breaker.
It is preferred that also including：Temperature controller, measurement and control unit, data acquisition unit, the temperature controller is to monitor double divisions
The temperature of transformer, when the temperature exceedes default first threshold, the temperature controller controls the 3rd breaker, the 4th to break
Road device and combined electrical apparatus direct trip；The measurement and control unit to monitor the described pair of transformer with split winding low-pressure side voltage and/or
The status signal of current signal and the combined electrical apparatus, when in the voltage and current signal of the low-pressure side of monitoring at least
When one kind exceedes default threshold value, the measurement and control unit controls the 3rd breaker and the 4th breaker direct trip；It is described
Measurement and control unit receives the temperature signal of the temperature controller output, when the temperature signal exceedes default Second Threshold, sends two
Secondary trip signal, controls the 3rd breaker, the 4th breaker and combined electrical apparatus direct trip.
It is preferred that the measurement and control unit is detected after fault message, by the data acquisition unit by transmitting fault information
To the first monitoring inverter unit and/or the second monitoring inverter unit, first inverter is controlled and/or second inverse
Become device shutdown.
It is preferred that when the combined electrical apparatus occurs electric abnormal, the combined electrical apparatus controls the 3rd breaker and the 4th
Breaker direct trip.
It is preferred that the first AC/DC converting unit, the second AC/DC converting unit include DC filtering
Device, inverter bridge, alternating current filter and A.C. contactor.
It is preferred that first breaker and the second breaker can be replaced using the combinational circuit of disconnecting switch and fuse
Generation.
It is preferred that first breaker and the second breaker can be replaced using the smaller breaker parallel connection of multiple capacity
Generation.
It is preferred that the combined electrical apparatus includes fuse, on-load switch, disconnecting switch and lightning protection device.
Compared with prior art, there is following technique effect in the utility model：
Firstth, box type transformer (change of abbreviation case) low-pressure side input breaker, lightning protection device, and inverter outlet side are saved
Lightning protection device, saves equipment cost.
Secondth, reinforced concrete basis and engineering time can be saved.
3rd, shorten the cable that case becomes between inverter, reduce the engineering time, improve cable connection reliability.
4th, field apparatus lifting, the time installed and expense are reduced.
Brief description of the drawings
Fig. 1 is the electrical schematic diagram in box inverter room and box type transformer in existing photovoltaic system；
Fig. 2 is the electrical schematic diagram of the embodiment of the integrated inverter of the utility model and box type transformer；
Reference：Description of symbols in accompanying drawing, 1-inverter and box type transformer integration apparatus, the 2-the first inversion
Device, the 3-the second inverter, 4-bis- transformer with split windings, 5-combined electrical apparatus, (5_1)-fuse, (5_2)-on-load switch,
(5_3)-disconnecting switch, (5_4)-lightning protection device, the 6-the first AC/DC converting unit, the conversion of the 7-the second AC/DC
Unit, the 8-the first monitoring inverter unit, the 9-the second monitoring inverter unit, 10-temperature controller, 11-measurement and control unit,
12-data acquisition unit, 13 to 16-first to fourth breaker.
Embodiment
Below in conjunction with accompanying drawing, further details of narration is done to the technical scheme that the utility model embodiment is provided.
Embodiment one：
Referring to accompanying drawing 2, inverter and box type transformer integration apparatus (1) of the present utility model is used for photo-voltaic power generation station
In, the integration apparatus sets the integration of equipments such as inverter unit, double transformer with split windings (4) and combined electrical apparatus (5), described
The input of inverter unit receives the direct current energy that photovoltaic module (for example with solar panel) is provided, and by the electric energy
The alternating current received for double transformer with split windings (4) is converted into, this pair of transformer with split winding (4) is by the exchange electric boost of reception, and most
Appropriate voltage (for example exchanging 1kV-20kV) is converted to eventually, and power network is then sent into by combined electrical apparatus (5).
Inverter unit includes the first inverter (2) and the second inverter (3), and it is straight that the first inverter (2) includes first
Stream/AC conversion unit (6), the first monitoring inverter unit (8), display device and the first breaker (13) and the 3rd break
Road device (15)；Second inverter (3) include the second AC/DC converting unit (7), the second monitoring inverter unit (9),
And second breaker (14) and the 4th breaker (16)；The monitoring inverter unit (including the first monitoring inverter unit
(8), the second monitoring inverter unit (9)) its corresponding AC/DC converting unit is monitored respectively, realize to described
At least one progress in first breaker (13), the second breaker (14), the 3rd breaker (15) and the 4th breaker (16)
Control；AC/DC converting unit in the utility model can convert direct current into the device of exchange for this area is any,
Preferably comprise DC filter, inverter bridge, alternating current filter and A.C. contactor.
First inverter (2), the second inverter (3), double transformer with split windings (4) and combined electrical apparatus (5) are integrally disposed；
The input of first inverter (2) and the second inverter (3) is connected by the first breaker (13) and the second breaker (14) respectively
Connect photovoltaic module, it is preferable that connect lightning protection device in the input；Its output end passes through the 3rd breaker (15) and the 4th respectively
Breaker (16) is directly connected in the low-pressure side of described pair of transformer with split winding (4)；The outlet side connection group of double transformer with split windings (4)
The input side of electrical equipment (5) is closed, the outlet side of the combined electrical apparatus (5) is connected with power network, realize the conveying to electric energy.
Preferably, first breaker (13) and the second breaker (14) can be using disconnecting switch and the group of fuse
Circuit is closed to substitute；Preferably, first breaker (13) and the second breaker (14) also can be smaller using multiple capacity
Breaker parallel connection is substituted；Term " capacity is smaller " refers to relative to first breaker (13) and the second breaker (14)
Capacity.
Also include temperature controller (10), measurement and control unit (11), data acquisition unit (12) in the integration apparatus；Temperature controller (10)
The double transformer with split windings (4) of connection, the temperature signal of the double transformer with split windings (4) of collection, and to the temperature of this pair of transformer with split winding (4)
It is monitored, when the temperature signal of collection exceedes default first threshold, the temperature controller (10) controls the 3rd breaker
(15), the 4th breaker (16) and combined electrical apparatus (5) direct trip；The double transformer with split windings (4) of measurement and control unit (11) connection and group
Electrical equipment (5) is closed, for monitoring the voltage and/or the shape of current signal and combined electrical apparatus (5) of double transformer with split winding (4) low-pressure sides
State signal, when at least one of voltage and current signal of the low-pressure side exceedes default threshold value, measurement and control unit (11)
Control the 3rd breaker (15) and the 4th breaker (16) direct trip；Meanwhile, measurement and control unit also connects temperature controller (10), receives
The temperature signal of institute's temperature controller (10) output, when the temperature signal exceedes default Second Threshold, sends secondary trip signal,
The 3rd breaker (15), the 4th breaker (16) and combined electrical apparatus (5) direct trip again are controlled, twice trip operation, can be with
Ensure the safe operation of the integration apparatus, improve the reliability of system, the value of the first threshold and Second Threshold with
And mutual magnitude relationship, those skilled in the art can be according to the appropriate selection of actual design needs.
The output end of the double transformer with split windings (4) of combined electrical apparatus (5) connection；Voltage after being changed through double transformer with split windings (4)
(for example exchanging 1kV-20kV), passes through combined electrical apparatus (5) final output to power network.Fusing can be installed inside combined electrical apparatus (5)
Device (5-1), on-load switch (5-2), disconnecting switch (5-3) and lightning protection device (5-4).Meanwhile, the combined electrical apparatus (5) connection the 3rd is broken
Road device (15) and the 4th breaker (16), are arranged such so that itself and the 3rd breaker (15) and the formation of the 4th breaker (16)
Electrical interlocks, when combined electrical apparatus (5) occurs electric abnormal, it controls the 3rd breaker (15) and the 4th breaker (16)
Direct trip, further increases security, the stability in power station.
Data acquisition unit (12), for carrying out information exchange with power station centralized control center.Set when measurement and control unit (11) is detected
After standby fault message, by the data acquisition unit (12), the first monitoring inverter unit (8) is given by the transmitting fault information
And/or the second monitoring inverter unit (9), control first inverter (2) and/or the second inverter (3) shutdown；Meanwhile,
By the data acquisition unit (12), power station centralized control center is given by the transmitting fault information, equipment operation feelings are understood for staff
Condition, is safeguarded in time.
Inverter and box type transformer integration apparatus (1) of the present utility model is due to being integrated with inverter unit and double points
Fission depressor, relative to existing photovoltaic system, eliminates the breaker of input side (also referred to as low-pressure side) in former double transformer with split windings
With lightning protection device, eliminate the lightning protection device of inverter unit outlet side so that circuit structure is simpler, further saves generation
Cost；Meanwhile, in terms of control aspect, when measurement and control unit (11) detects excess temperature, overvoltage, excessively stream of double transformer with split windings (4) etc.
, can be with the 3rd breaker (15) of direct trip inverter side and the 4th breaker (16) during fault-signal；In addition, combined electrical apparatus
(5) with the 3rd breaker (15) of inverter side and the 4th breaker (16) formation electrical interlocks, when combined electrical apparatus (5) occurs
When abnormal, the 3rd breaker (15) of inverter side and the 4th breaker (16) are also threaded off immediately, further improve equipment fortune
Capable safety and reliability.
Correspondingly, according to the utility model literature record and essence disclosed in inverter and box integration apparatus electricity
Gas circuit diagram, its corresponding control method also category disclosed in the utility model.That is, the utility model also discloses that a kind of use
In the control method of photo-voltaic power generation station, methods described is used for controlling above-mentioned inverter and box type transformer integration apparatus.
Disclosed above is only the specific embodiment of the application, but the application is not limited to this, the skill of any this area
What art personnel can think change, should all fall in the protection domain of the application.
Claims (9)
1. a kind of inverter and box type transformer integration apparatus, including the first inverter (2), the second inverter (3), double divisions
Transformer (4) and combined electrical apparatus (5), first inverter (2) include the first AC/DC converting unit (6),
One breaker (13) and the 3rd breaker (15), second inverter (3) include the second AC/DC converting unit (7),
Second breaker (14) and the 4th breaker (16), it is characterised in that：
First inverter (2), the second inverter (3), double transformer with split windings (4) and combined electrical apparatus (5) are integrally disposed；First
The input of inverter (2) and the second inverter (3) passes through first breaker (13) and second breaker respectively
(14) photovoltaic module is connected, its output end is directly connected by the 3rd breaker (15) and the 4th breaker (16) respectively
It is connected to the low-pressure side of described pair of transformer with split winding (4)；The outlet side connection combined electrical apparatus (5) of described pair of transformer with split winding (4)
Input side, the outlet side of the combined electrical apparatus (5) is connected with power network, realizes the conveying to electric energy.
2. equipment according to claim 1, it is characterised in that also include：
First monitoring inverter unit (8), it is monitored to the first AC/DC converting unit (6), realizes to described
The control of first breaker (13), at least one breaker in the 3rd breaker (15)；
Second monitoring inverter unit (9), it is monitored to the second AC/DC converting unit (7), realizes to described
The control of second breaker (14), at least one breaker in the 4th breaker (16).
3. equipment according to claim 1, it is characterised in that also include：
Temperature controller (10), measurement and control unit (11), data acquisition unit (12), the temperature controller (10) become to monitor double divisions
The temperature of depressor (4), when the temperature exceedes default first threshold, the temperature controller (10) controls the 3rd breaker
(15), the 4th breaker (16) and combined electrical apparatus (5) direct trip；The measurement and control unit (11) becomes to monitor double divisions
The voltage of depressor (4) low-pressure side and/or the status signal of current signal and the combined electrical apparatus (5) are described low when monitoring
When pressing at least one of voltage and current signal of side more than default threshold value, measurement and control unit (11) control the described 3rd
Breaker (15) and the 4th breaker (16) direct trip；The measurement and control unit (11) receives the temperature of temperature controller (10) output
Signal is spent, when the temperature signal exceedes default Second Threshold, secondary trip signal is sent, controls the 3rd breaker
(15), the 4th breaker (16) and combined electrical apparatus (5) direct trip.
4. equipment according to claim 3, it is characterised in that the measurement and control unit (11) detects device fault information
Afterwards, by the data acquisition unit (12), the first monitoring inverter unit (8) and/or second are given by transmitting fault information
Monitoring inverter unit (9), controls first inverter (2) and/or the second inverter (3) shutdown.
5. equipment according to claim 3, it is characterised in that when the combined electrical apparatus (5) occurs electric abnormal, the combination
Electrical equipment (5) controls the 3rd breaker (15) and the 4th breaker (16) direct trip.
6. equipment according to claim 1, it is characterised in that the first AC/DC converting unit (6), second straight
Stream/AC conversion unit (7) includes DC filter, inverter bridge, alternating current filter and A.C. contactor.
7. equipment according to claim 1, it is characterised in that first breaker (13) and the second breaker (14) energy
Enough substituted using the combinational circuit of disconnecting switch and fuse.
8. equipment according to claim 1, it is characterised in that first breaker (13) and the second breaker (14) energy
Enough substituted using the smaller breaker parallel connection of multiple capacity.
9. equipment according to claim 1, it is characterised in that the combined electrical apparatus (5) includes fuse (5-1), load
Switch (5-2), disconnecting switch (5-3) and lightning protection device (5-4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621181299.6U CN206481060U (en) | 2016-11-03 | 2016-11-03 | A kind of inverter and box type transformer integration apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621181299.6U CN206481060U (en) | 2016-11-03 | 2016-11-03 | A kind of inverter and box type transformer integration apparatus |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206481060U true CN206481060U (en) | 2017-09-08 |
Family
ID=59757224
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621181299.6U Withdrawn - After Issue CN206481060U (en) | 2016-11-03 | 2016-11-03 | A kind of inverter and box type transformer integration apparatus |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206481060U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106655254A (en) * | 2016-11-03 | 2017-05-10 | 中民新能投资集团有限公司 | Integrated device of inverter and transformer |
| CN111477523A (en) * | 2020-04-14 | 2020-07-31 | 阳光电源股份有限公司 | Combined fuse, application device thereof and protection method of application device |
-
2016
- 2016-11-03 CN CN201621181299.6U patent/CN206481060U/en not_active Withdrawn - After Issue
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106655254A (en) * | 2016-11-03 | 2017-05-10 | 中民新能投资集团有限公司 | Integrated device of inverter and transformer |
| CN111477523A (en) * | 2020-04-14 | 2020-07-31 | 阳光电源股份有限公司 | Combined fuse, application device thereof and protection method of application device |
| CN111477523B (en) * | 2020-04-14 | 2022-09-13 | 阳光电源股份有限公司 | Inverter box transformer substation all-in-one machine and protection method thereof |
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|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20170908 Effective date of abandoning: 20190409 |