CN204425271U - There is the photovoltaic supervising device of arc-detection function - Google Patents
There is the photovoltaic supervising device of arc-detection function Download PDFInfo
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- CN204425271U CN204425271U CN201420872057.6U CN201420872057U CN204425271U CN 204425271 U CN204425271 U CN 204425271U CN 201420872057 U CN201420872057 U CN 201420872057U CN 204425271 U CN204425271 U CN 204425271U
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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
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- Y02E10/50—Photovoltaic [PV] energy
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Abstract
The utility model discloses the photovoltaic supervising device with arc-detection function, this device voltage detection module, current detection module, temperature detecting module, arc-detection module and central processing module, described central processing module is control connection voltage detection module, current detection module, temperature detecting module respectively, this arc-detection module installation between current detection module and central processing module, with detect install this device photovoltaic module place current path in whether have fault electric arc to occur.This device can be arranged in photovoltaic component terminal box, not only can gather voltage, electric current, temperature data during photovoltaic module work, be sent to user by communication module and realize monitoring function, but also detect by arc-detection module the fault electric arc that assembly place current path occurs and pass through to turn off the timely turn-off current path of module, prevent fault electric arc initiation fire, ensure the security of operation of photovoltaic plant.
Description
Technical field
The utility model belongs to field of photovoltaic power generation.Particularly, the utility model relates on a kind of photovoltaic module (solar panels) be installed in photovoltaic plant, has the photovoltaic supervising device of arc-detection function.
Background technology
Along with society grows with each passing day to the concern of regenerative resource and demand, market emerges a large amount of solar photovoltaic power plant sunlight being converted into electric power.What present most of photovoltaic system installed utilization is all long high-voltage dc power supply of going here and there, and which increases the safety problem relevant with electric arc.
When circuit or electrical connector break down, high-voltage direct-current circuit may produce electric arc.These electric arcs can make device charged, cause mounting system also charged, may make anyone electric shock of contact device.These electric arcs also can cause fire, thus cause electric equipment to damage, or cause property damage on a large scale.
In order to solve these important safety problems, solar industry has formulated UL1699B photovoltaic electric arc fault protection standard.After employing UL1699B, the voltage in photovoltaic system on any a string solar panels higher than 80V, then needs observe this standard and implement arc-detection.
Utility model content
In order to solve above-mentioned safety problem and the mandatory requirement reaching standard, the utility model provides a kind of photovoltaic supervising device with arc-detection function of innovation, realizes the monitoring such as the arc-detection of photovoltaic plant and system with this.
In order to solve the problems of the technologies described above, the utility model adopts following technical scheme:
There is the photovoltaic supervising device of arc-detection function, this device voltage detection module, current detection module, temperature detecting module and central processing module, described central processing module is control connection voltage detection module, current detection module, temperature detecting module respectively, described supervising device also comprises arc-detection module, described arc-detection module installation between current detection module and central processing module, with detect install this device photovoltaic module place current path in whether have fault electric arc to occur.
Preferably, described arc-detection module is made up of arc-detection chip or is made up of the microprocessor with program capability.
In a preferred embodiment, also comprise bypass module in described supervising device, described bypass module is arranged in the circuit of photovoltaic module to be monitored, with in this photovoltaic module generation mismatch or fault by its bypass.
Further, described bypass module is the passive bypass that is made up of diode or the active bypass for being made up of mosfet transistor.
In another preferred embodiment, also comprise shutoff module in described supervising device, described shutoff module installation at the current path of photovoltaic module to be monitored, and connects with central processing module data.
Further, described shutoff module is made up of transistor switch or is made up of relay switch.
In another preferred embodiment, also comprise communication module in described supervising device, described communication module connects with central processing module data, and communicating with user communication terminal connects.
In another preferred embodiment, described supervising device is directly installed in photovoltaic junction box or is external on photovoltaic junction box.
The utility model structure is simple, be easy to realize and stable and reliable for performance, it can be arranged in photovoltaic component terminal box, not only can gather voltage, electric current, temperature data during photovoltaic module work, be sent to user by communication module and realize monitoring function, but also detect by arc-detection module the fault electric arc that assembly place current path occurs and pass through to turn off the timely turn-off current path of module, prevent fault electric arc initiation fire, ensure the security of operation of photovoltaic plant, and the mandatory requirement of standard can be reached.
Accompanying drawing explanation
The utility model is further illustrated below in conjunction with the drawings and specific embodiments.
Fig. 1 is the structured flowchart of the photovoltaic supervising device with arc-detection function.
Embodiment
The technological means realized to make the utility model, creation characteristic, reaching object and effect is easy to understand, below in conjunction with concrete diagram, setting forth the utility model further.
In order to can solve the safety problem of existing photovoltaic system and reach the mandatory requirement of standard, the photovoltaic supervising device that the utility model provides, it has arc-detection function, can realize the intelligent monitorings such as the arc-detection of photovoltaic plant and system.
See Fig. 1, this photovoltaic supervising device comprises bypass module 101, voltage detection module 102, current detection module 103, temperature detecting module 104, arc-detection module 105, turns off module 106, communication module 107 and central processing module 108.
Wherein, voltage detection module 102, current detection module 103, temperature detecting module 104 are controlled by central processing module 108 respectively, for detecting voltage, electric current and temperature data the most basic when photovoltaic module works.Specifically can have corresponding hardware detecting circuit to realize, it is prior art, is not repeated herein.
Arc-detection module 105, it is arranged between current detection module 103 and central processing module 108, for detect install this device photovoltaic module place current path in whether have fault electric arc to occur.
This arc-detection module can adopt special electric arc detection chip to realize, and the general microprocessor with program capability also can be utilized to realize.
Turn off the current path that module 106 is arranged on photovoltaic module to be monitored, and connect with central processing module 108 data.When it is for fault electric arc or other demands being detected, turn off the photovoltaic module current path installing this device; In a string photovoltaic module, this device all installed by each assembly, and the high pressure that can realize whole string turns off to zero volt.
This shutoff module 106 can adopt transistor switch, and relay switch also can be utilized to realize
Bypass module 101 is arranged in the circuit of photovoltaic module to be monitored, can, when photovoltaic module generation mismatch or fault, this device shutoff Module Fail by its bypass, make this local fault not affect the normal work of all the other photovoltaic modulies in photovoltaic group string.
Bypass module 101 can adopt diode to do passive bypass, and mosfet transistor also can be utilized to do initiatively bypass.
Communication module 107 is for realizing the data communication between whole supervising device and user communication terminal.Data detected by whole supervising device are sent to user by central processing module communication control module; User also sends a command to this device by communication module and turns off photovoltaic module output when needed, realizes the remote monitoring of photovoltaic system.
This communication module 107 is specifically made up of corresponding communication chip or telecommunication circuit.
The photovoltaic supervising device formed thus, when embody rule, can directly be installed in photovoltaic junction box, also can be external on photovoltaic junction box.
Further instruction scheme of the present utility model is carried out below by way of an instantiation:
It may be noted that, the diagram provided in the present embodiment only with structured flowchart form so that basic framework of the present utility model to be described, during its actual enforcement, the form of each module can arbitrarily change.
See Fig. 1, the photovoltaic supervising device in this example with arc-detection function comprises bypass module 101, voltage detection module 102, current detection module 103, temperature detecting module 104, arc-detection module 105, turns off module 106, communication module 107 and central processing module 108.
Above-mentioned all modules are all installed in photovoltaic component terminal box, and busbar 1, busbar 2, busbar 3 and busbar 4 may correspond to 4 busbars being connected to conventional photovoltaic module; " output+" and " output-" is as the Energy transmission end of photovoltaic module generating.
Wherein, voltage detection module 102 is connected between busbar 4 and busbar 1, in order to detect the operating voltage of photovoltaic module.Electric resistance partial pressure mode can be adopted to obtain suitable voltage range process for central processing module 108.
Current detection module 103 is arranged on busbar 1, in order to detect the operating current of photovoltaic module.Milliohm resistance can be adopted to be connected in photovoltaic module current path, to be voltage signal by current conversion, to process for central processing module 108.
Temperature detecting module 104 is in order to detect the working temperature of photovoltaic module.NTC resistance can be adopted to be pasted onto in photovoltaic panel, the change of temperature to be passed to central processing module 108 and processes.
Arc-detection module 105, whether it arranges between current detection module 103 and central processing module 108, have fault electric arc to occur in order to detect in the current path of photovoltaic module place.Arc-detection chip can be adopted, as the SA3102 chip of Canadian Solantro, when it captures fault electric arc, signal transmission is processed to central processing module 108.
Turning off module 106 is arranged on busbar 1, when central processing module 108 receives arc signal, control is turned off module 106 and turns off photovoltaic module current path.This shutoff module can adopt mosfet transistor to realize.
Bypass module 101 adopts two, first piece of bypass module 101 is positioned at the front end of whole supervising device, connect with busbar 1, busbar 2, busbar 3 and busbar 4 respectively, second piece of bypass module 101 is positioned at the rear end of whole supervising device, connect busbar 1 and busbar 4 respectively, thus can when photovoltaic module generation mismatch or fault, this device shutoff Module Fail by its bypass.This bypass module 101 can adopt diode to do passive bypass, as the SB3040 diode of Taiwan Qiang Mao company conventional in photovoltaic system.
Communication module 107 connects with central processing module 108 data, all Detection Information are passed to user, and receives user's controls to this device.Adopt wireless communication mode, make this device that simple and flexible is installed.
Central processing module 108 is control and the processing center of this device, is responsible for the collection of various detection data and turns off the control of module.Can adopt the general purpose microcontroller with program capability, as the CC2530 chip of Texas Instruments, this chip also carries temperature detection and wireless communication function, can make this device more Simple And Practical.
The photovoltaic supervising device with arc-detection function provided in this example, it is arranged in photovoltaic junction box, change the present situation of existing terminal box function singleness, derive a terminal box that there is arc-detection, the detection of component voltage current temperature and turn off assembly generating output.
More than show and describe general principle of the present utility model, principal character and advantage of the present utility model.The technical staff of the industry should understand; the utility model is not restricted to the described embodiments; what describe in above-described embodiment and specification just illustrates principle of the present utility model; under the prerequisite not departing from the utility model spirit and scope; the utility model also has various changes and modifications, and these changes and improvements all fall within the scope of claimed the utility model.The claimed scope of the utility model is defined by appending claims and equivalent thereof.
Claims (8)
1. there is the photovoltaic supervising device of arc-detection function, this device voltage detection module, current detection module, temperature detecting module and central processing module, described central processing module is control connection voltage detection module, current detection module, temperature detecting module respectively, it is characterized in that, described supervising device also comprises arc-detection module, described arc-detection module installation between current detection module and central processing module, with detect install this device photovoltaic module place current path in whether have fault electric arc to occur.
2. the photovoltaic supervising device with arc-detection function according to claim 1, is characterized in that, described arc-detection module is made up of arc-detection chip or is made up of the microprocessor with program capability.
3. the photovoltaic supervising device with arc-detection function according to claim 1, it is characterized in that, also comprise bypass module in described supervising device, described bypass module is arranged in the circuit of photovoltaic module to be monitored, with in this photovoltaic module generation mismatch or fault by its bypass.
4. the photovoltaic supervising device with arc-detection function according to claim 3, is characterized in that, described bypass module is the passive bypass that is made up of diode or the active bypass for being made up of mosfet transistor.
5. the photovoltaic supervising device with arc-detection function according to claim 1, it is characterized in that, also comprise shutoff module in described supervising device, described shutoff module installation at the current path of photovoltaic module to be monitored, and connects with central processing module data.
6. the photovoltaic supervising device with arc-detection function according to claim 5, is characterized in that, described shutoff module is made up of transistor switch or is made up of relay switch.
7. the photovoltaic supervising device with arc-detection function according to claim 1, is characterized in that, also comprise communication module in described supervising device, described communication module connects with central processing module data, and communicating with user communication terminal connects.
8. the photovoltaic supervising device with arc-detection function according to any one of claim 1 to 7, is characterized in that, described supervising device is directly installed in photovoltaic junction box or is external on photovoltaic junction box.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420872057.6U CN204425271U (en) | 2014-12-31 | 2014-12-31 | There is the photovoltaic supervising device of arc-detection function |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201420872057.6U CN204425271U (en) | 2014-12-31 | 2014-12-31 | There is the photovoltaic supervising device of arc-detection function |
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| CN204425271U true CN204425271U (en) | 2015-06-24 |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105790699A (en) * | 2016-04-26 | 2016-07-20 | 安徽灿邦电气有限公司 | Novel photovoltaic controller |
| CN105871334A (en) * | 2016-06-06 | 2016-08-17 | 保定嘉盛光电科技股份有限公司 | Solar cell module provided with temperature control |
| CN106059483A (en) * | 2016-06-28 | 2016-10-26 | 兰建龙 | Photovoltaic connector, photovoltaic system and control method for photovoltaic system |
| CN112422078A (en) * | 2020-11-19 | 2021-02-26 | 苏州元昱新能源有限公司 | High-temperature automatic turn-off function junction box and connector for photovoltaic module |
-
2014
- 2014-12-31 CN CN201420872057.6U patent/CN204425271U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105790699A (en) * | 2016-04-26 | 2016-07-20 | 安徽灿邦电气有限公司 | Novel photovoltaic controller |
| CN105871334A (en) * | 2016-06-06 | 2016-08-17 | 保定嘉盛光电科技股份有限公司 | Solar cell module provided with temperature control |
| CN105871334B (en) * | 2016-06-06 | 2018-03-23 | 保定嘉盛光电科技股份有限公司 | One kind is with temperature controlled solar cell module |
| CN106059483A (en) * | 2016-06-28 | 2016-10-26 | 兰建龙 | Photovoltaic connector, photovoltaic system and control method for photovoltaic system |
| CN112422078A (en) * | 2020-11-19 | 2021-02-26 | 苏州元昱新能源有限公司 | High-temperature automatic turn-off function junction box and connector for photovoltaic module |
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| C14 | Grant of patent or utility model | ||
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150624 Termination date: 20181231 |
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| CF01 | Termination of patent right due to non-payment of annual fee |