CN104767478A - Photovoltaic system disaster control method and safe wiring box - Google Patents
Photovoltaic system disaster control method and safe wiring box Download PDFInfo
- Publication number
- CN104767478A CN104767478A CN201510119825.XA CN201510119825A CN104767478A CN 104767478 A CN104767478 A CN 104767478A CN 201510119825 A CN201510119825 A CN 201510119825A CN 104767478 A CN104767478 A CN 104767478A
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- Prior art keywords
- relay
- terminal
- box
- circuit
- safety
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 238000000034 method Methods 0.000 title claims abstract description 19
- 230000009471 action Effects 0.000 claims abstract description 18
- 238000004891 communication Methods 0.000 claims abstract description 9
- 238000012546 transfer Methods 0.000 claims description 11
- 230000008054 signal transmission Effects 0.000 claims description 5
- 238000001514 detection method Methods 0.000 claims description 4
- 230000006378 damage Effects 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 238000004146 energy storage Methods 0.000 description 2
- 208000027418 Wounds and injury Diseases 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 239000012141 concentrate Substances 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000004907 flux Effects 0.000 description 1
- 208000014674 injury Diseases 0.000 description 1
- 239000011159 matrix material Substances 0.000 description 1
- 230000035800 maturation Effects 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 description 1
- 238000013082 photovoltaic technology Methods 0.000 description 1
- 238000010248 power generation Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000001012 protector Effects 0.000 description 1
- GOLXNESZZPUPJE-UHFFFAOYSA-N spiromesifen Chemical compound CC1=CC(C)=CC(C)=C1C(C(O1)=O)=C(OC(=O)CC(C)(C)C)C11CCCC1 GOLXNESZZPUPJE-UHFFFAOYSA-N 0.000 description 1
- 230000000087 stabilizing effect Effects 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02S—GENERATION OF ELECTRIC POWER BY CONVERSION OF INFRARED RADIATION, VISIBLE LIGHT OR ULTRAVIOLET LIGHT, e.g. USING PHOTOVOLTAIC [PV] MODULES
- H02S50/00—Monitoring or testing of PV systems, e.g. load balancing or fault identification
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02S—GENERATION OF ELECTRIC POWER BY CONVERSION OF INFRARED RADIATION, VISIBLE LIGHT OR ULTRAVIOLET LIGHT, e.g. USING PHOTOVOLTAIC [PV] MODULES
- H02S40/00—Components or accessories in combination with PV modules, not provided for in groups H02S10/00 - H02S30/00
-
- 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
Abstract
The invention discloses a photovoltaic system disaster control method and a safe wiring box. The method includes the steps that a monitoring center sends out an action instruction, the action instruction is transmitted to a radio frequency controller in a communication mode, the radio frequency controller transmits a signal to a relay, and the relay acts to control a switch arranged on a wire inlet terminal line or a wire outlet terminal line of the safe wiring box to be turned off so that the line can be cut off; or, the relay acts to control a switch between the wire inlet terminal line and the wire outlet terminal line of the safe wiring box to be turned on so that a short circuit can be formed inside the safe wiring box. The instruction is sent out through the monitoring center, the relay controls the switch to be turned off so that an open circuit of the wiring box can be achieved, all solar panels of a photovoltaic module are cut off, and the voltage is reduced below the safe voltage; or, the relay controls the switch to be turned on so that the short circuit can be achieved in the wiring box, and the solar panels of the photovoltaic module are damaged; thus, when a disaster happens, safety of rescue workers can be ensured, the disaster is effectively prevented from further expanding, and loss is reduced.
Description
Technical field
The present invention relates to technical field of photovoltaic power generation, especially a kind of photovoltaic system disaster control method and Safety terminal box used thereof.
Background technology
Along with development and the maturation of photovoltaic technology, photovoltaic generation is widely used, and its scale is also increasing, and thousands of solar battery sheets constitute photovoltaic generating system.But the expansion of scale is installed along with photovoltaic system, corresponding power failure and disaster hidden-trouble also progressively display, and the requirement for photovoltaic generation intelligent management supervisory control system highlights day by day.Because cell piece in photovoltaic system adopts series system to connect, voltage is generally 600 ~ 1000V, therefore once be equipped with the building breaking out of fire of photovoltaic plant, the states such as current America and Europe and Japan all forbid that fine day adopts sprinkling fire, all require to install on building at photovoltaic plant to install fire protection device for this reason.Then existing protector mainly concentrates on MPPT inverter intelligent monitoring aspect, is all that passive type receives the laggard Row sum-equal matrix of information, is difficult to take the mode such as open circuit, short circuit to carry out active Based Intelligent Control to single battery component.And cell panel being carried out to the active Based Intelligent Control of open circuit or short circuit, best mode is using terminal box as carrier, and then conventional electrical connectors cannot realize open circuit or fault control to single battery component.
Summary of the invention
The technical problem to be solved in the present invention is: overcome the deficiency in prior art, provides a kind of photovoltaic system disaster control method and the Safety terminal box that can effectively prevent photovoltaic generating system disaster from expanding, guaranteeing rescue personnel's safety.
The technical solution adopted for the present invention to solve the technical problems is: a kind of photovoltaic system disaster control method, there is the rf control unit of the Safety terminal box be arranged on photovoltaic module, the Surveillance center sending action command, transfer instruction signal, be provided with in described Safety terminal box received RF controller send out the relay of radiofrequency signal, the input terminal of Safety terminal box or the circuit of outlet terminal are provided with the switch being realized Safety terminal box open circuit or short circuit by Control opening and closing, when disaster occurs, its control method is as follows:
Send action command by Surveillance center, be transferred to rf control unit by communication modes, rf control unit transfers signals to relay, and the actuating of relay controls the switch opens that is arranged on input terminal or outlet terminal circuit and this circuit is disconnected; Or send action command by Surveillance center, rf control unit is transferred to by communication modes, rf control unit transfers signals to relay, and the switch of actuating of relay control connection between input terminal and outlet terminal circuit is closed and make Safety terminal box inside form short circuit.
The Safety terminal box that a kind of above-mentioned control method is used, comprise box body, the binding post be arranged in box body, connect the input terminal of binding post and outlet terminal, diode is electrically connected with between adjacent line terminals, being provided with in described box body can the relay of received RF controller signal transmission, on the circuit of input terminal or outlet terminal, be provided with and opened by Control and realize the switch of Safety terminal box open circuit.
Or, the Safety terminal box that a kind of above-mentioned control method is used, comprise box body, the binding post be arranged in box body, connect the input terminal of binding post and outlet terminal, diode is electrically connected with between adjacent line terminals, being provided with in described box body can the relay of received RF controller signal transmission, between input terminal and the circuit of outlet terminal, be connected with and closed by Control and realize the switch of Safety terminal box short circuit.
Preferably, the detection box that described box body comprises terminal box body and is connected with terminal box body, described relay is arranged on and detects in box.
The invention has the beneficial effects as follows: the present invention sends instruction by Surveillance center, relay control switch is opened and realizes terminal box open circuit, makes mutually disconnect between each cell panel of photovoltaic module and be low to moderate under safe voltage by voltage drop; Or closed by relay control switch and realize junction box short circuit, photovoltaic module cell panel being damaged, like this when disaster occurs, the safety of rescue personnel can be guaranteed, the further expansion be effectively against any misfortune, reduce the loss.
Accompanying drawing explanation
Below in conjunction with drawings and Examples, the present invention is further described.
Fig. 1 is the structure principle chart of the first embodiment of Safety terminal box of the present invention.
Fig. 2 is the structure principle chart of Safety terminal box the second embodiment of the present invention.
In figure, 1. box body 1-1. terminal box body 1-2. detect box 2. binding post 3. input terminal 4. outlet terminal 5. diode 6. rf control unit 7. relay 8. switch 9. Surveillance center
Embodiment
The present invention is further illustrated with preferred embodiment by reference to the accompanying drawings now.These accompanying drawings are the schematic diagram of simplification, only basic structure of the present invention are described in a schematic way, and therefore it only shows the formation relevant with the present invention.
A kind of photovoltaic system disaster control method, there is a set of control system, this system comprises the Safety terminal box be arranged on photovoltaic module, sends the rf control unit 6 of the Surveillance center 9 of action command, transfer instruction signal, be provided with in described Safety terminal box received RF controller 6 send out the relay 7 of radiofrequency signal, the input terminal 3 of Safety terminal box or the circuit of outlet terminal 4 are provided with and control opening and closing by relay 7 and realize the switch 8 of Safety terminal box open circuit or short circuit.When disaster occurs, its control method is as follows: send action command by Surveillance center 9, rf control unit 6 is transferred to by communication modes, rf control unit 6 transfers signals to relay 7, the switch 8 that relay 7 action control is arranged on input terminal 3 or outlet terminal 4 circuit is opened and this circuit is disconnected, thus make mutually to disconnect between the assembly of original series connection, the voltage on such single component is down under safe voltage and can not be damaged human body; Or send action command by Surveillance center 9; rf control unit 6 is transferred to by communication modes; rf control unit 6 transfers signals to relay 7; the switch 8 that relay 7 action control is connected between input terminal 3 and outlet terminal 4 circuit closes and makes Safety terminal box inside form short circuit; thus damage assembly self, playing is against any misfortune expands further, the effect of protection rescue personnel safety.
As shown in Figure 1, for the first execution mode of the Safety terminal box of above-mentioned disaster control method, comprise box body 1, be arranged on four binding posts 2 in box body 1, connect input terminal 3 and the outlet terminal 4 of both sides binding post 2 respectively, diode 5 is electrically connected with between adjacent line terminals 2, the detection box 1-2 that described box body 1 comprises terminal box body 1-1 and is connected with terminal box body 1-1, detect in box 1-2 and be provided with surface-mounted integrated circuit and signal output port, described surface-mounted integrated circuit is fixed on the pedestal of detection box 1-2, surface-mounted integrated circuit is provided with controller, energy storage, super low-power consumption processor and wireless launcher four functional modules, controller receives the signal of telecommunication gathered in terminal box body 1-1, temperature signal and flux signal, after voltage stabilizing and anti-recoil process, be transferred to super low-power consumption processor carry out integrated calculating, result of calculation is transferred to Surveillance center 9 by signal output port, the electric energy that controller receives is stored by energy storage.
And for realizing security control, detecting in box 1-2, be also provided with can the relay 7 of received RF controller 6 signal transmission, on the circuit connecting terminal box input terminal 3, be provided with and controlled to open by relay 7 and realize the switch 8 of Safety terminal box open circuit, like this once there is the disaster of such as fire and so on, namely action command is sent by Surveillance center 9, rf control unit 6 is transferred to by communication modes, rf control unit 6 transfers signals to relay 7, the switch 8 that relay 7 action control is arranged on input terminal 3 or outlet terminal 4 circuit is opened and makes mutually to disconnect between each assembly, voltage is down to single component its voltage amount, because its voltage of single component is generally all in safe voltage scope, therefore injury can not be produced to human body, thus serve good disaster control effects.Similarly, described switch 8 also can be located on the circuit of connection terminal box outlet terminal 4, can play same open circuit effect.
As shown in Figure 2, for the second execution mode of the Safety terminal box of above-mentioned control method, itself and the first execution mode difference are: described switch 8 is connected between the circuit of input terminal 3 and outlet terminal 4, when disaster occurs, Surveillance center 9 sends action command, rf control unit 6 is transferred to by communication modes, rf control unit 6 transfers signals to relay 7, closed by relay 7 control switch 8, input terminal 3 is communicated with outlet terminal 4 and realizes the short circuit of Safety terminal box internal circuit, thus damage photovoltaic module self, be convenient to safety and carry out disaster relief.
The present invention sends instruction by Surveillance center 9, and relay 7 control switch 8 is opened and realizes terminal box open circuit, makes mutually disconnect between each cell panel of photovoltaic module and be low to moderate under safe voltage by voltage drop; Or closed by relay 7 control switch 8 and realize junction box short circuit, photovoltaic module cell panel being damaged, like this when disaster occurs, the safety of rescue personnel can be guaranteed, the further expansion be effectively against any misfortune, reduce the loss.
Above-described embodiment is only for illustrating technical conceive of the present invention and feature; its object is to person skilled in the art can be understood content of the present invention and be implemented; can not limit the scope of the invention with this; all equivalences done according to Spirit Essence of the present invention change or modify, and all should be encompassed in protection scope of the present invention.
Claims (4)
1. a photovoltaic system disaster control method, there is the Safety terminal box be arranged on photovoltaic module, send the rf control unit (6) of the Surveillance center (9) of action command, transfer instruction signal, be provided with in described Safety terminal box received RF controller (6) send out the relay (7) of radiofrequency signal, it is characterized in that:
The input terminal (3) of Safety terminal box or the circuit of outlet terminal (4) are provided with and control opening and closing by relay (7) and realize the switch (8) of Safety terminal box open circuit or short circuit, when disaster occurs, its control method is as follows: send action command by Surveillance center (9), rf control unit (6) is transferred to by communication modes, rf control unit (6) transfers signals to relay (7), the switch (8) that relay (7) action control is arranged on input terminal (3) or outlet terminal (4) circuit is opened and this circuit is disconnected, or send action command by Surveillance center (9), rf control unit (6) is transferred to by communication modes, rf control unit (6) transfers signals to relay (7), and the switch (8) that relay (7) action control is connected between input terminal (3) and outlet terminal (4) circuit closes and makes Safety terminal box inside form short circuit.
2. the Safety terminal box for control method according to claim 1, comprise box body (1), be arranged on the binding post (2) in box body (1), connect input terminal (3) and the outlet terminal (4) of binding post (2), diode (5) is electrically connected with between adjacent line terminals (2), it is characterized in that: being provided with in described box body (1) can the relay (7) of received RF controller (6) signal transmission, on the circuit of input terminal (3) or outlet terminal (4), be provided with and controlled to open by relay (7) and realize the switch (8) of Safety terminal box open circuit.
3. the Safety terminal box of a control method according to claim 1, comprise box body (1), be arranged on the binding post (2) in box body (1), connect input terminal (3) and the outlet terminal (4) of binding post (2), diode (5) is electrically connected with between adjacent line terminals (2), it is characterized in that: being provided with in described box body (1) can the relay (7) of received RF controller (6) signal transmission, between the circuit of input terminal (3) and outlet terminal (4), be connected with and controlled to close by relay (7) and realize the switch (8) of Safety terminal box short circuit.
4. the Safety terminal box according to Claims 2 or 3, it is characterized in that: the detection box (1-2) that described box body (1) comprises terminal box body (1-1) and is connected with terminal box body (1-1), described relay (7) is arranged on and detects in box (1-2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510119825.XA CN104767478A (en) | 2015-03-18 | 2015-03-18 | Photovoltaic system disaster control method and safe wiring box |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510119825.XA CN104767478A (en) | 2015-03-18 | 2015-03-18 | Photovoltaic system disaster control method and safe wiring box |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104767478A true CN104767478A (en) | 2015-07-08 |
Family
ID=53649139
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510119825.XA Pending CN104767478A (en) | 2015-03-18 | 2015-03-18 | Photovoltaic system disaster control method and safe wiring box |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104767478A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105932959A (en) * | 2016-06-25 | 2016-09-07 | 苏州同泰新能源科技有限公司 | Photovoltaic terminal box of bypass integration module with component level monitoring function |
| CN106026913A (en) * | 2016-07-01 | 2016-10-12 | 扬州虹扬科技发展有限公司 | Solar bypass diode fault diagnosis system and solar junction box |
| CN106656023A (en) * | 2017-01-18 | 2017-05-10 | 常熟市福莱德连接器科技有限公司 | Smart junction box for eliminating PID and working method thereof |
| WO2019227592A1 (en) * | 2018-06-01 | 2019-12-05 | 北京汉能光伏投资有限公司 | Solar system control method and apparatus, central controller, and solar system |
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| CN103457303A (en) * | 2012-05-30 | 2013-12-18 | 台达电子工业股份有限公司 | Solar power generation system with power generation module and output power control method of solar power generation system |
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| CN204031043U (en) * | 2014-08-28 | 2014-12-17 | 常州天合光能有限公司 | There is the photovoltaic system of intelligent turn-off function |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105932959A (en) * | 2016-06-25 | 2016-09-07 | 苏州同泰新能源科技有限公司 | Photovoltaic terminal box of bypass integration module with component level monitoring function |
| CN106026913A (en) * | 2016-07-01 | 2016-10-12 | 扬州虹扬科技发展有限公司 | Solar bypass diode fault diagnosis system and solar junction box |
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| CN106656023A (en) * | 2017-01-18 | 2017-05-10 | 常熟市福莱德连接器科技有限公司 | Smart junction box for eliminating PID and working method thereof |
| WO2019227592A1 (en) * | 2018-06-01 | 2019-12-05 | 北京汉能光伏投资有限公司 | Solar system control method and apparatus, central controller, and solar system |
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| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20150708 |
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| WD01 | Invention patent application deemed withdrawn after publication |