CN207835079U - A kind of automatic photovoltaic anti-islanding device - Google Patents
A kind of automatic photovoltaic anti-islanding device Download PDFInfo
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- CN207835079U CN207835079U CN201820197922.XU CN201820197922U CN207835079U CN 207835079 U CN207835079 U CN 207835079U CN 201820197922 U CN201820197922 U CN 201820197922U CN 207835079 U CN207835079 U CN 207835079U
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- islanding
- grid
- circuit
- special switch
- connected special
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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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- Photovoltaic Devices (AREA)
Abstract
The utility model discloses a kind of automatic photovoltaic anti-islanding devices, it includes grid-connected special switch, grid-connected special switch is equipped on circuit between power grid and photovoltaic generating system, the both sides of grid-connected special switch respectively by circuit be connected to anti-islanding controller into electric end and current output terminal, it is equipped with voltage signal sensor into electric end side in grid-connected special switch, voltage signal sensor passes through circuit and anti-islanding controller unicom；Manual anti-islanding device is communicated on the circuit of grid-connected special switch and photovoltaic generating system, the output end of anti-islanding controller passes through circuit and manual anti-islanding device unicom.The utility model is reasonable for structure, using effect is good, can be good at the security risk for avoiding island phenomenon from bringing.
Description
Technical field
The utility model is related to electric power anti-islanding devices, especially a kind of to be suitable for automatic photovoltaic anti-islanding device.
Background technology
The use of present anti-islanding device is commonplace, but existing anti-islanding device is mostly manual work mode,
Non intelligent.Workflow is：When electrical breakdown and generation island phenomenon, the electrification of photovoltaic system grid side, electric power overhaul people
Member is by detecting whether the point charges, to determine whether if it happens it is then that field service personnel is thrown manually that island phenomenon, which occurs,
Enter low pressure anti-islanding device.And manual anti-islanding device the case where there are certain maloperations, certain peace is brought to user
Full hidden danger.
Invention content
The purpose of this utility model is a kind of automatic photovoltaic anti-islanding device reasonable for structure, using effect is good of design.
The technical solution of the utility model is that a kind of automatic photovoltaic anti-islanding device, it includes grid-connected special switch, special
Sign is：Grid-connected special switch is equipped on circuit between power grid and photovoltaic generating system, in the both sides of grid-connected special switch
Respectively by circuit connection anti-islanding controller into electric end and current output terminal, electricity is equipped with into electric end side in grid-connected special switch
Signal transducer, voltage signal sensor is pressed to pass through circuit and anti-islanding controller unicom；It is sent out in grid-connected special switch and photovoltaic
Manual anti-islanding device is communicated on the circuit of electric system, the output end of anti-islanding controller is filled by circuit and manual anti-islanding
Set unicom.The manual anti-islanding device is the vibration resistance of concatenated Operation switch and ground connection.
The utility model has the beneficial effects that：Using the overloading of photovoltaic DC-to-AC converter, overvoltage, phase shortage, the operation principle of frequency locking,
Electric network information suitable for reading is switched by detection and net side, judges that grid side either with or without dead electricity, the division of grid-connected switch, realizes anti-islanding
Device automatic switching is converted.And has interlock function with higher level's low-voltage circuit breaker：The Operation switch of low pressure anti-islanding device with
Higher level's low-voltage circuit breaker cooperation of institute installation place is using interlock mode mechanically or electrically, it is ensured that higher level's breaker is anti-lonely after disconnecting
Island device input.
Description of the drawings
Fig. 1 is the structural schematic diagram of the utility model.
Specific implementation mode
Embodiment is described in detail in conjunction with the figures above,
A kind of automatic photovoltaic anti-islanding device, it includes grid-connected special switch, between power grid and photovoltaic generating system
Circuit is equipped with grid-connected special switch, the both sides of grid-connected special switch respectively by circuit be connected to anti-islanding controller into electricity
End and current output terminal are equipped with voltage signal sensor in grid-connected special switch into electric end side, and voltage signal sensor passes through electricity
Road and anti-islanding controller unicom；Manual anti-islanding dress is communicated on the circuit of grid-connected special switch and photovoltaic generating system
It sets, the output end of anti-islanding controller passes through circuit and manual anti-islanding device unicom；Manual anti-islanding described in the present embodiment
Device is the vibration resistance of concatenated Operation switch and ground connection.
The utility model is reasonable for structure, using effect is good, can be good at the security risk for avoiding island phenomenon from bringing.
The above embodiments are merely examples for clarifying the description, and does not limit the embodiments.For institute
For the those of ordinary skill in category field, other various forms of variations or change can also be made on the basis of the above description
It is dynamic.There is no necessity and possibility to exhaust all the enbodiments, and obvious variation extended from this or change
Within the dynamic protection domain created still in the utility model.
Claims (2)
1. a kind of automatic photovoltaic anti-islanding device, it includes grid-connected special switch, it is characterised in that：In power grid and photovoltaic generation system
Circuit between system is equipped with grid-connected special switch, and anti-islanding control is connected to by circuit respectively in the both sides of grid-connected special switch
Device into electric end and current output terminal, be equipped with voltage signal sensor, voltage signal sensing into electric end side in grid-connected special switch
Device passes through circuit and anti-islanding controller unicom；It is communicated on the circuit of grid-connected special switch and photovoltaic generating system anti-manually
The output end of isolated island device, anti-islanding controller passes through circuit and manual anti-islanding device unicom.
2. a kind of automatic photovoltaic anti-islanding device as described in claim 1, it is characterised in that：The manual anti-islanding device
For concatenated Operation switch and the vibration resistance of ground connection.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820197922.XU CN207835079U (en) | 2018-02-06 | 2018-02-06 | A kind of automatic photovoltaic anti-islanding device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820197922.XU CN207835079U (en) | 2018-02-06 | 2018-02-06 | A kind of automatic photovoltaic anti-islanding device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207835079U true CN207835079U (en) | 2018-09-07 |
Family
ID=63396949
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820197922.XU Active CN207835079U (en) | 2018-02-06 | 2018-02-06 | A kind of automatic photovoltaic anti-islanding device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207835079U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110445134A (en) * | 2019-07-29 | 2019-11-12 | 南京南瑞继保工程技术有限公司 | A kind of flexibility ring device |
| CN113964859A (en) * | 2021-09-06 | 2022-01-21 | 国网浙江省电力有限公司台州供电公司 | Device for realizing anti-islanding |
-
2018
- 2018-02-06 CN CN201820197922.XU patent/CN207835079U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110445134A (en) * | 2019-07-29 | 2019-11-12 | 南京南瑞继保工程技术有限公司 | A kind of flexibility ring device |
| CN113964859A (en) * | 2021-09-06 | 2022-01-21 | 国网浙江省电力有限公司台州供电公司 | Device for realizing anti-islanding |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address |
Address after: No.1789, Xinfei Avenue, Xinxiang District, Henan Province Patentee after: Henan nuclear Xudong Electric Co., Ltd. Address before: 453000 torch Park, 1789 new high-tech zone, Hongfei Road, Hongqi District, Xinxiang, Henan, China Patentee before: Henan Xudong Electrical Technology Co. Ltd. |
|
| CP03 | Change of name, title or address |