CN202978432U - Direct current lightning protection power distribution cabinet monitoring system - Google Patents
Direct current lightning protection power distribution cabinet monitoring system Download PDFInfo
- Publication number
- CN202978432U CN202978432U CN2012206741507U CN201220674150U CN202978432U CN 202978432 U CN202978432 U CN 202978432U CN 2012206741507 U CN2012206741507 U CN 2012206741507U CN 201220674150 U CN201220674150 U CN 201220674150U CN 202978432 U CN202978432 U CN 202978432U
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- power distribution
- distribution cabinet
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- data acquisition
- communication interface
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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
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B90/00—Enabling technologies or technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02B90/20—Smart grids as enabling technology in buildings sector
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Abstract
The utility model relates to a direct current lightning protection power distribution cabinet monitoring system which includes a signal sensing unit, a data acquisition unit, a data processing unit, a signal display unit, and a communication interface. The signal sensing unit is connected with the data acquisition unit. The data processing unit is connected with the data acquisition unit, the signal display unit, and the communication interface respectively. Compared with the prior art, the direct current lightning protection power distribution cabinet monitoring system has a wide application scope, greatly avoids the artificial device touring time, effectively improves the generation efficiency of a solar station, and timely eliminates the operation faults.
Description
Technical field
The utility model relates to a kind of power distribution cabinet supervisory control system, especially relates to a kind of DC lightning prevention power distribution cabinet supervisory control system.
Background technology
The modern civilization of being started by the industrial revolution; all be based upon large scale mining, use on the basis of fossil fuel; but be accompanied by the continuous consumption of fossil fuel, the mankind have come to realise and must face potential energy crisis---fossil energy is exhausted at last.Countries in the world are all at the new green power of actively seeking alternative fossil fuel, and solar photovoltaic technology is to utilize " photovoltaic effect " that light directly is converted to electric energy, and whole transfer process is without discharging, be clean most, the green energy resource of environmental protection.And photovoltaic distribution cabinet is to be applied in the Intelligent photovoltaic electricity generation system to be used for a kind of smart machine that photocell tandem and peripheral auxiliary element are monitored, is to be accompanied by the large-scale application of photovoltaic generation and a novel product producing.General pv grid-connected plant mainly is comprised of photovoltaic battery array, photovoltaic distribution cabinet, inverter three parts, accept illumination by array and produce direct current, electric current outputs to power distribution cabinet wealthy stream in parallel, then output to inverter by a plurality of power distribution cabinets, final inverter is transported to electrical network or is incorporated into the power networks through after boosting after direct current is converted to alternating current.
But need to solve following problem in practice:
1, the battery component that uses due to photovoltaic plant is by thousands of, and some power station area reaches more than ten square kilometre, how could find that header box inside breaks down?
How does lightning protection device in time find if 2 power distribution cabinets have installed lightning protection device additional if having lost efficacy?
3, a plurality of lead-in circuit breakers are installed because power distribution cabinet is inner, can the circuit breaker fault that trips in time be found?
4, after a plurality of array parallel connections, after supposing wherein certain photovoltaic module internal short-circuit, how in time to find component faults?
5, conflux how to protect photovoltaic cell when short trouble appears in side at secondary?
The utility model content
The purpose of this utility model is exactly to provide a kind of DC lightning prevention power distribution cabinet supervisory control system for the defective that overcomes above-mentioned prior art existence.
The purpose of this utility model can be achieved through the following technical solutions:
A kind of DC lightning prevention power distribution cabinet supervisory control system, it is characterized in that, comprise sensing unit, data acquisition unit, data processing unit, signal display unit and communication interface, described sensing unit is connected with data acquisition unit, and described data processing unit is connected with data acquisition unit, signal display unit and communication interface respectively.
Described sensing unit comprises current signal sensor, voltage signal sensor, temperature signal transducer and lightning arrester signal transducer.
Described data processing unit is microprocessor.
Described signal display unit is touch-screen.
Described communication interface is RS485 interface, wireless communication interface or optical fiber interface.
Compared with prior art, the utlity model has following advantage:
1, applied widely, can be applicable to polytype DC lightning prevention power distribution cabinet, can effectively detect the inner major parameters of power distribution cabinet such as state, system's energy output, power distribution cabinet internal temperature of running status, the power distribution cabinet internal breaker of running status, the lightning-proof header box of solar panel, and adopt various communication interfaces can satisfy the needs of different communicating terminals.
2, greatly avoid the time of manual patrol equipment, effectively improved the generating efficiency of solar power station, in time got rid of operating fault, be applicable to each large, medium and small solar power plant system.
Description of drawings
Fig. 1 is structural representation of the present utility model.
Embodiment
Below in conjunction with the drawings and specific embodiments, the utility model is elaborated.
Embodiment
As shown in Figure 1, a kind of DC lightning prevention power distribution cabinet supervisory control system, comprise sensing unit 1, data acquisition unit 2, data processing unit 3, signal display unit 4 and communication interface 5, described sensing unit 1 is connected with data acquisition unit 2, and described data processing unit 3 is connected with communication interface with data acquisition unit 2, signal display unit 4 respectively and is connected.
Described sensing unit 1 comprises current signal sensor, voltage signal sensor, temperature signal transducer and lightning arrester signal transducer.Described data processing unit 3 is microprocessor.Described signal display unit 4 is touch-screen.Described communication interface 5 is RS485 interface, wireless communication interface or optical fiber interface.
The information such as described data acquisition unit 2 can be effectively, process accurately the voltage that gathers, electric current, temperature, fault, analog quantity.Described data processing unit 3 can effectively judge each header box fault message, the too high information of temperature rise, surge arrester failure information, each service entrance switch state information according to the information that gathers.Described signal display unit 4 can show each parameter information, fault message accurately, and relevant parameter can be set.
The function that the utility model is realized is as follows:
1, whether wanting to detect the battery component that damages in photovoltaic battery array, need to measure the output current of this array normal, and in order to prevent high voltage cause damage of equipment and the personal injury of photovoltaic cell, need to carry out the isolation measurement direct current, therefore adopt current signal sensor to complete.
2, operating state and the power distribution cabinet internal temperature rise in order to monitor pole plate needs both positive and negative polarity terminal voltage and ambient temperature between the monitoring pole plate, therefore adopts data acquisition unit to complete.
Whether 3, intact in order in time to grasp Surge Protector, therefore whether closed, the signal such as whether door lock of power distribution cabinet closes of input circuit breaker adopt data acquisition unit to complete and gather above state contact point signal.
4, damage photovoltaic cell for avoiding electric current to pour in down a chimney with the battery overcurrent, need in each array output loop, fuse be installed, the fuse fault will directly affect delivery efficiency.Therefore adopt size and the degree of balance of data processing unit 3 each header box branch currents of judgement, passing ratio and set operation judge the state of each branch road fuse.
Claims (5)
1. DC lightning prevention power distribution cabinet supervisory control system, it is characterized in that, comprise sensing unit, data acquisition unit, data processing unit, signal display unit and communication interface, described sensing unit is connected with data acquisition unit, and described data processing unit is connected with data acquisition unit, signal display unit and communication interface respectively.
2. a kind of DC lightning prevention power distribution cabinet supervisory control system according to claim 1, is characterized in that, described sensing unit comprises current signal sensor, voltage signal sensor, temperature signal transducer and lightning arrester signal transducer.
3. a kind of DC lightning prevention power distribution cabinet supervisory control system according to claim 1, is characterized in that, described data processing unit is microprocessor.
4. a kind of DC lightning prevention power distribution cabinet supervisory control system according to claim 1, is characterized in that, described signal display unit is touch-screen.
5. a kind of DC lightning prevention power distribution cabinet supervisory control system according to claim 1, is characterized in that, described communication interface is RS485 interface, wireless communication interface or optical fiber interface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012206741507U CN202978432U (en) | 2012-12-07 | 2012-12-07 | Direct current lightning protection power distribution cabinet monitoring system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012206741507U CN202978432U (en) | 2012-12-07 | 2012-12-07 | Direct current lightning protection power distribution cabinet monitoring system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202978432U true CN202978432U (en) | 2013-06-05 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012206741507U Expired - Fee Related CN202978432U (en) | 2012-12-07 | 2012-12-07 | Direct current lightning protection power distribution cabinet monitoring system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202978432U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105137236A (en) * | 2015-08-26 | 2015-12-09 | 芜湖市凯鑫避雷器有限责任公司 | Falling type lightning arrester on-line monitoring system |
-
2012
- 2012-12-07 CN CN2012206741507U patent/CN202978432U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105137236A (en) * | 2015-08-26 | 2015-12-09 | 芜湖市凯鑫避雷器有限责任公司 | Falling type lightning arrester on-line monitoring system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130605 Termination date: 20141207 |
|
| EXPY | Termination of patent right or utility model |