CN205992729U - Connection control structure applied to direct current side of photovoltaic inverter - Google Patents
Connection control structure applied to direct current side of photovoltaic inverter Download PDFInfo
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- CN205992729U CN205992729U CN201620623004.XU CN201620623004U CN205992729U CN 205992729 U CN205992729 U CN 205992729U CN 201620623004 U CN201620623004 U CN 201620623004U CN 205992729 U CN205992729 U CN 205992729U
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- inverter
- output connects
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- photovoltaic
- electrical output
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- 239000003990 capacitor Substances 0.000 claims description 6
- 230000005611 electricity Effects 0.000 claims 2
- 238000010248 power generation Methods 0.000 abstract 2
- 230000002035 prolonged effect Effects 0.000 abstract 1
- 238000000034 method Methods 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 230000009466 transformation Effects 0.000 description 2
- 230000000712 assembly Effects 0.000 description 1
- 238000000429 assembly Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 230000006837 decompression Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000008439 repair process Effects 0.000 description 1
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Abstract
The utility model discloses a be applied to connection control structure of photovoltaic inverter direct current side, including direct current input, direct current input electrical output connects high frequency electronic switch, high frequency electronic switch electrical output connects high-speed DSP treater, high-speed DSP treater electrical output connects high frequency step up transformer, high frequency step up transformer electrical output connects filter capacitance, filter capacitance electrical output connects the dc-to-ac converter, power frequency filter circuit electrical output connects the inverter bridge, inverter bridge electrical output connects the dc-to-ac converter. The device is connected with the direct current input through the voltage-loss tripping assembly, the voltage-loss tripping assembly can be connected with the photovoltaic inverter and the solar photovoltaic assembly, and the fact that when the inverter breaks down, the system supplies power and can be disconnected with the inverter is guaranteed, so that the safety of the whole photovoltaic power generation system is guaranteed, and the safety of the photovoltaic power generation system can be prolonged.
Description
Technical field
This utility model is related to photovoltaic DC-to-AC converter technical field, specially a kind of company being applied to photovoltaic DC-to-AC converter DC side
Connect control structure.
Background technology
Generally, process AC energy being transformed into direct current energy is called rectification, the circuit completing rectification function is claimed
For rectification circuit, the device realizing switching process is referred to as rectifying installation or commutator.Correspond, becoming direct current energy
The process changing AC energy into is referred to as inversion, and the circuit completing inversion function is called inverter circuit, realizing reversals
Device is referred to as contravariant equipment or inverter.As described above, inverter has polytype, therefore need spy when selecting machine and capacity
Do not note.Especially in solar power system, the height of inverter efficiency is to determine that solar-electricity tankage and accumulator are held
The key factor of amount size.
The switchgear such as the multiplex relay of switch of existing photovoltaic DC-to-AC converter DC side or chopper, using this device
Shortcoming the most fatal is exactly when photovoltaic DC-to-AC converter short circuit occurred inside fault, and its control section cannot provide energy and cannot
Send cut-out DC voltage command information, when the electric current of DC side is continuing to supply, easily cause system to burst and then
Cause the major safety risks such as fire.
Utility model content
The purpose of this utility model is to provide a kind of connection control structure being applied to photovoltaic DC-to-AC converter DC side, to solve
The problem certainly proposing in above-mentioned background technology.
For achieving the above object, this utility model provides following technical scheme：One kind is applied to photovoltaic DC-to-AC converter DC side
Connection control structure, including DC supply input, described DC supply input electrically exports connection high frequency electronic switch, described high frequency
Electrical switch electrically exports connection high-speed dsp processor, and described high-speed dsp processor electrically exports connection high frequency boosting transformation
Device, described high-frequency step-up transformer electrically exports connection filter capacitor, and described filter capacitor electrically exports connection inverter, described
Inverter electrically exports connection filter circuit, and described filter circuit electrically exports connection electrical network, and described DC supply input is also electrical
Output connects power supply circuits, and described power supply circuits electrically export connection no-voltage trip assembly, and described no-voltage trip assembly is electrically defeated
Go out to connect power frequency filter circuit, described power frequency filter circuit electrically exports connection inverter bridge, described inverter bridge electrically exports connection
Inverter.
Preferably, described inverter also electrically exports to connect and transships overheated warning module.
Preferably, described no-voltage trip assembly also electrically exports linked reactor, and it is inverse that described reactor electrically exports connection
Become device.
Compared with prior art, the beneficial effects of the utility model are：The connection of photovoltaic DC-to-AC converter DC side should be used for
Control structure, is connected with DC supply input by no-voltage trip assembly, be capable of no-voltage trip assembly and photovoltaic DC-to-AC converter and
Solar photovoltaic assembly is connected with each other it is ensured that when inverter breaks down, system power supply can be breaking with inverter, thus really
Protect the safety of whole photovoltaic generating system, the safety of photovoltaic generating system can be extended.
Brief description
Fig. 1 is this utility model system block diagram.
In figure：1 DC supply input, 2 high frequency electronic switch, 3 high-speed dsp processors, 4 high-frequency step-up transformers, 5 filtered electrical
Appearance, 6 inverters, 7 filter circuits, 8 electrical networks, 9 power supply circuits, 10 no-voltage trip assemblies, 11 power frequency filter circuit, 12 inverter bridge,
13 reactors, the 14 overheated warning modules of overload.
Specific embodiment
Below in conjunction with the accompanying drawing in this utility model embodiment, the technical scheme in this utility model embodiment is carried out
Clearly and completely description is it is clear that described embodiment is only a part of embodiment of this utility model rather than whole
Embodiment.Based on the embodiment in this utility model, those of ordinary skill in the art are not under the premise of making creative work
The every other embodiment being obtained, broadly falls into the scope of this utility model protection.
Refer to Fig. 1, this utility model provides a kind of technical scheme：A kind of connection being applied to photovoltaic DC-to-AC converter DC side
Control structure, including DC supply input 1, described DC supply input 1 electrically exports connection high frequency electronic switch 2, described high-frequency electrical
The electrical output of son switch 2 connects high-speed dsp processor 3, and described high-speed dsp processor 3 electrically exports connection high frequency boosting transformation
Device 4, described high-frequency step-up transformer 4 electrically exports connection filter capacitor 5, and described filter capacitor 5 electrically exports connection inverter
6, described inverter 6 electrically exports connection filter circuit 7, and described filter circuit 7 electrically exports connection electrical network 8, described unidirectional current
Input 1 also electrically exports and connects power supply circuits 9, and described power supply circuits 9 electrically export connection no-voltage trip assembly 10, described decompression
Trip assembley therefor 10 electrically exports connection power frequency filter circuit 11, and described power frequency filter circuit 11 electrically exports connection inverter bridge 12,
Described inverter bridge 12 electrically exports connection inverter 6.
Described inverter 6 also electrically exports to connect and transships overheated warning module 14.Described no-voltage trip assembly 10 is also electrically
Output linked reactor 13, described reactor 13 electrically exports connection inverter 6.
Specifically, during use, it is capable of and inverter 6 and whole photovoltaic generating system by no-voltage trip assembly 10
Connect, when inverter 6 breaks down, no-voltage trip assembly 10 can form open circuit to whole electric power system, such that it is able to protect
The safe operation of card photovoltaic generating system, structure is simple, long service life.
While there has been shown and described that embodiment of the present utility model, for the ordinary skill in the art,
It is appreciated that these embodiments can be carried out with multiple changes in the case of without departing from principle of the present utility model and spirit, repair
Change, replace and modification, scope of the present utility model is defined by the appended claims and the equivalents thereof.
Claims (3)
1. a kind of connection control structure being applied to photovoltaic DC-to-AC converter DC side, including DC supply input (1) it is characterised in that：
Electrically output connects high frequency electronic switch (2) to described DC supply input (1), and electrically output connects described high frequency electronic switch (2)
High-speed dsp processor (3), electrically output connects high-frequency step-up transformer (4), described high frequency liter to described high-speed dsp processor (3)
Electrically output connects filter capacitor (5) to pressure transformer (4), and electrically output connects inverter (6) to described filter capacitor (5), described
Electrically output connects filter circuit (7) to inverter (6), and electrically output connects electrical network (8), described direct current to described filter circuit (7)
Electricity input (1) also electrically exports and connects power supply circuits (9), and electrically output connects no-voltage trip assembly to described power supply circuits (9)
(10), described no-voltage trip assembly (10) electrically output connection power frequency filter circuit (11), described power frequency filter circuit (11) electricity
Property output connect inverter bridge (12), electrically output connects inverter (6) to described inverter bridge (12).
2. a kind of connection control structure being applied to photovoltaic DC-to-AC converter DC side according to claim 1 it is characterised in that：
The also electrically output connection overheated warning module of overload (14) of described inverter (6).
3. a kind of connection control structure being applied to photovoltaic DC-to-AC converter DC side according to claim 1 it is characterised in that：
Also electrically output linked reactor (13) of described no-voltage trip assembly (10), electrically output connects inverter to described reactor (13)
(6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620623004.XU CN205992729U (en) | 2016-06-22 | 2016-06-22 | Connection control structure applied to direct current side of photovoltaic inverter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620623004.XU CN205992729U (en) | 2016-06-22 | 2016-06-22 | Connection control structure applied to direct current side of photovoltaic inverter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205992729U true CN205992729U (en) | 2017-03-01 |
Family
ID=58102122
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620623004.XU Expired - Fee Related CN205992729U (en) | 2016-06-22 | 2016-06-22 | Connection control structure applied to direct current side of photovoltaic inverter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205992729U (en) |
-
2016
- 2016-06-22 CN CN201620623004.XU patent/CN205992729U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20170301 Termination date: 20190622 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |