CN109975669A - Arc current intelligent detection module and its working method - Google Patents
Arc current intelligent detection module and its working method Download PDFInfo
- Publication number
- CN109975669A CN109975669A CN201910271335.XA CN201910271335A CN109975669A CN 109975669 A CN109975669 A CN 109975669A CN 201910271335 A CN201910271335 A CN 201910271335A CN 109975669 A CN109975669 A CN 109975669A
- Authority
- CN
- China
- Prior art keywords
- module
- arc
- detection module
- dsp processor
- channel
- 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
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R19/00—Arrangements for measuring currents or voltages or for indicating presence or sign thereof
- G01R19/0092—Arrangements for measuring currents or voltages or for indicating presence or sign thereof measuring current only
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/12—Testing dielectric strength or breakdown voltage ; Testing or monitoring effectiveness or level of insulation, e.g. of a cable or of an apparatus, for example using partial discharge measurements; Electrostatic testing
- G01R31/1227—Testing dielectric strength or breakdown voltage ; Testing or monitoring effectiveness or level of insulation, e.g. of a cable or of an apparatus, for example using partial discharge measurements; Electrostatic testing of components, parts or materials
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Photovoltaic Devices (AREA)
Abstract
The present invention relates to a kind of arc current intelligent detection module and its working methods, detection module includes: dsp processor, dsp processor is electrically connected analog-digital converter, multi channel currents detection module, multichannel arc-detection module, power input and differential voltage acquisition module, circuit-breaker status switching input module, switching value output module, Analog input mModule, charactron, key module and burning mouth.Arc current intelligent detection module of the present invention is mainly used in the occasions such as direct current transportation, distribution, such as photovoltaic combiner box, DC cabinet, telecommunications room, communication base station, each branch current, busbar voltage, spin manifold temperature, lightning protection device state, dc circuit breaker state etc. in real-time monitoring direct current system, whether harmful electric arc generates in real-time detection DC circuit, once having in the presence of harmful electric arc, alarm signal is issued at once, effectively prevent the security risks such as fire caused by electric arc.
Description
Technical field
The present invention relates to arc current detection module fields, and in particular to a kind of arc current intelligent detection module.
Background technique
Due to the maturation of photovoltaic technology and expansion of the manufacturer to new markets, the standard of solar energy industry is constantly modified.With
The large size " solar energy field " that is made of a large amount of solar panels constantly drilling to more and more smaller houses and business installation
Become, has increasing need for measure with high safety to avoid catastrophic event relevant to high voltage, such as harmful electric shock or fire occurs
Calamity.These events are as caused by electric arc, and when route or electrical connector failure, high-voltage direct-current route may be generated
Electric arc, these electric arcs can be such that device charges, support system caused also to be charged, and may make anyone electric shock for contacting device, and
And these electric arcs can also result in fire, so as to cause electrical equipment damage, or lead to a wide range of property damage, however, current city
Mainstream detection module on field does not all have arc-detection function, is not able to satisfy the market demand gradually.
Summary of the invention
It is existing to solve the purpose of the present invention is to provide a kind of arc current intelligent detection module and its working method
The problem of electric arc in technology causes the risk of harmful electric shock or fire that cannot detect in advance.
One aspect of the present invention provides a kind of arc current intelligent detection module, comprising:
Dsp processor, for controlling data storage, data conversion and data communication when the work of entire module；
The dsp processor is electrically connected analog-digital converter, multi channel currents detection module, multichannel arc-detection module,
Power input and differential voltage acquisition module, circuit-breaker status switching input module, switching value output module, analog input
Module, charactron, key module and burning mouth；
The multichannel current detection module includes several current detecting channels that current analog is switched and is connected electrically, institute
Current analog sense channel connection analog switch is stated, the analog switch is electrically connected DPS processor, for processing in real time and monitoring
The current value in each channel is simultaneously shown on charactron by DPS processor feedback；
The multichannel electric arc detection module includes electric arc analog switch and several arc-detection channels being connected electrically, institute
Electric arc analog switch electrical connection analog switch is stated, for the arc energy magnitude in each channel of cycle detection, and feeds back to DSP processing
Device will feed back out the channel for having electric arc after the arc energy magnitude in some channel or multiple channels exceeds electric arc threshold threshold values,
And it is shown on charactron；
The power input and differential voltage acquisition module, power input are provided by external power supply to entire detection module
Operating voltage, differential voltage acquire difference analogue voltage input sense channel, detect busbar voltage；
Circuit-breaker status switching input module, for detecting circuit-breaker status；
Switching value output module exports this switching value when arc phenomenon occurs for any channel, realizes alarm；
Analog input mModule connects external temperature sensor, for detecting environment temperature；
Charactron, for recycling display multi-channel DC current value, busbar voltage, environment temperature, sequence number, arc discharge
Channel；
Software control procedure is burnt in dsp processor by burning mouth for turning serial ports tool by USB；
It further include 485 communication ports and 485 communication power supplies, 485 communication port and 485 communication power supply connection signals and power supply
Isolation module, the signal and power isolation module connect dsp processor, and 485 communication ports are logical by modebus agreement and host computer
News.
Further, the dsp processor is electrically connected lightning protection state switching input module, for detecting lightning protection state.
Further, the dsp processor is electrically connected key module, controls charactron circulation display mould by key module
Electric current, voltage, temperature and the arc channel of block, can be with the address and baud rate of modified module.
Further, LED light includes communication indicator light and run indicator, communicates indicator light when 485 communication ports receive
Blinking green indicator light, flash red indicator light when transmission, run indicator are always on after module energization.
Another aspect of the present invention provides a kind of working method of arc current intelligent detection module, includes the following steps:
(1) dsp processor Initialize installation subsequently enters detection program；
(2) it chooses whether to carry out current detecting, if so, multi channel currents detection module starts to detect all channel currents simultaneously
It feeds back to dsp processor and subsequently enters next step, if it is not, being directly entered next step；
(3) it chooses whether to carry out busbar voltage detection, if so, differential voltage acquisition module starts to detect busbar voltage and anti-
It is fed to dsp processor and subsequently enters next step, if it is not, being directly entered next step；
(4) Analog input mModule detects environment temperature；
(5) lightning protection state switching input module detects lightning protection state, if so, mode bit set, if nothing, mode bit is clear
Zero；
(6) circuit-breaker status switching input module detects circuit-breaker status, if so, mode bit set, if nothing, mode bit
It resets；
(7) if 485 ports receive data, DPS processor handles modebus information, subsequently enters next step, if
Data are not received, are directly entered next step；
(8) multichannel electric arc detection module carries out arc-detection and feeds back to dsp processor, if electric arc exceeds threshold value, feedback
There is the channel of electric arc out, and be shown on charactron, if not exceeding threshold value, repeats step (2)-(8).
Beneficial effect using aforementioned present invention technical solution is:
Arc current intelligent detection module of the present invention is mainly used in the occasions such as direct current transportation, distribution, as photovoltaic combiner box,
DC cabinet, telecommunications room, communication base station etc., each branch current in real-time monitoring direct current system, busbar voltage, spin manifold temperature,
Lightning protection device state, dc circuit breaker state etc., in real-time detection DC circuit whether harmful electric arc generate, once have there are
Evil electric arc, issues alarm signal at once, effectively prevent the security risks such as fire caused by electric arc.
Detailed description of the invention
Fig. 1 is arc current intelligent detection module structural schematic diagram of the present invention；
Fig. 2 is arc current intelligent detection module work flow diagram of the present invention；
Specific embodiment
In order to make the object, technical scheme and advantages of the embodiment of the invention clearer, below in conjunction with the embodiment of the present invention
In attached drawing, technical scheme in the embodiment of the invention is clearly and completely described, it is clear that described embodiment is
A part of the embodiment of the present invention, instead of all the embodiments.
As shown in Figure 1, a kind of arc current intelligent detection module of the present invention, comprising:
Dsp processor, for controlling data storage, data conversion and data communication when the work of entire module；
The dsp processor is electrically connected analog-digital converter, multi channel currents detection module, multichannel arc-detection module,
Power input and differential voltage acquisition module, circuit-breaker status switching input module, switching value output module, analog input
Module, charactron, key module and burning mouth；
The multichannel current detection module includes several current detecting channels that current analog is switched and is connected electrically, institute
Current analog sense channel connection analog switch is stated, the analog switch is electrically connected DPS processor, for processing in real time and monitoring
The current value in each channel is simultaneously shown on charactron by DPS processor feedback；
The multichannel electric arc detection module includes electric arc analog switch and several arc-detection channels being connected electrically, institute
Electric arc analog switch electrical connection analog switch is stated, for the arc energy magnitude in each channel of cycle detection, and feeds back to DSP processing
Device will feed back out the channel for having electric arc after the arc energy magnitude in some channel or multiple channels exceeds electric arc threshold threshold values,
And it is shown on charactron；
The power input and differential voltage acquisition module, power input are provided by external power supply to entire detection module
Operating voltage, differential voltage acquire difference analogue voltage input sense channel, detect busbar voltage；
Circuit-breaker status switching input module, for detecting circuit-breaker status；
Switching value output module exports this switching value when arc phenomenon occurs for any channel, realizes alarm；
Analog input mModule connects external temperature sensor, for detecting environment temperature；
Charactron, for recycling display multi-channel DC current value, busbar voltage, environment temperature, sequence number, arc discharge
Channel；
Software control procedure is burnt in dsp processor by burning mouth for turning serial ports tool by USB；
It further include 485 communication ports and 485 communication power supplies, 485 communication port and 485 communication power supply connection signals and power supply
Isolation module, the signal and power isolation module connect dsp processor, and 485 communication ports are logical by modebus agreement and host computer
News.
The dsp processor is electrically connected lightning protection state switching input module, for detecting lightning protection state.
The dsp processor is electrically connected key module, by key module control charactron recycle display module electric current,
Voltage, temperature and arc channel, can be with the address and baud rate of modified module.
LED light includes communication indicator light and run indicator, and communication indicator light blinking green when 485 communication ports receive refers to
Show lamp, flash red indicator light when transmission, run indicator is always on after module energization.
As shown in Fig. 2, the working method of the arc current intelligent detection module, includes the following steps:
(1) dsp processor Initialize installation subsequently enters detection program；
(2) it chooses whether to carry out current detecting, if so, multi channel currents detection module starts to detect all channel currents simultaneously
It feeds back to dsp processor and subsequently enters next step, if it is not, being directly entered next step；
(3) it chooses whether to carry out busbar voltage detection, if so, differential voltage acquisition module starts to detect busbar voltage and anti-
It is fed to dsp processor and subsequently enters next step, if it is not, being directly entered next step；
(4) Analog input mModule detects environment temperature；
(5) lightning protection state switching input module detects lightning protection state, if so, mode bit set, if nothing, mode bit is clear
Zero；
(6) circuit-breaker status switching input module detects circuit-breaker status, if so, mode bit set, if nothing, mode bit
It resets；
(7) if 485 ports receive data, DPS processor handles modebus information, subsequently enters next step, if
Data are not received, are directly entered next step；
(8) multichannel electric arc detection module carries out arc-detection and feeds back to dsp processor, if electric arc exceeds threshold value, feedback
There is the channel of electric arc out, and be shown on charactron, if not exceeding threshold value, repeats step (2)-(8).
To sum up, arc current intelligent detection module of the present invention is mainly used in the occasions such as direct current transportation, distribution, as photovoltaic converges
Flow case, DC cabinet, telecommunications room, communication base station etc., each branch current, busbar voltage, cabinet in real-time monitoring direct current system
Temperature, lightning protection device state, dc circuit breaker state etc., whether harmful electric arc generates in real-time detection DC circuit, once have
There are harmful electric arcs, issue alarm signal at once, effectively prevent the security risks such as fire caused by electric arc.
Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the present invention., rather than its limitations；To the greatest extent
Pipe present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that: its according to
So be possible to modify the technical solutions described in the foregoing embodiments, or to some or all of the technical features into
Row equivalent replacement；And these are modified or replaceed, various embodiments of the present invention technology that it does not separate the essence of the corresponding technical solution
The range of scheme.
Claims (5)
1. a kind of arc current intelligent detection module characterized by comprising
Dsp processor, for controlling data storage, data conversion and data communication when the work of entire module；
The dsp processor is electrically connected analog-digital converter, multi channel currents detection module, multichannel arc-detection module, power supply
Input and differential voltage acquisition module, circuit-breaker status switching input module, switching value output module, analog input mould
Block, charactron, key module and burning mouth；
The multichannel current detection module includes several current detecting channels that current analog is switched and is connected electrically, the electricity
Flow field simulation sense channel connects analog switch, and the analog switch is electrically connected DPS processor, each logical for handling and monitoring in real time
The current value in road is simultaneously shown on charactron by DPS processor feedback；
The multichannel electric arc detection module includes electric arc analog switch and several arc-detection channels being connected electrically, the electricity
Arc analog switch is electrically connected analog switch, for the arc energy magnitude in each channel of cycle detection, and feeds back to dsp processor, when
The arc energy magnitude in some channel or multiple channels will feed back out the channel for having electric arc after exceeding electric arc threshold threshold values, and show
Onto charactron；
The power input and differential voltage acquisition module, power input provide work to entire detection module by external power supply
Voltage, differential voltage acquire difference analogue voltage input sense channel, detect busbar voltage；
Circuit-breaker status switching input module, for detecting circuit-breaker status；
Switching value output module exports this switching value when arc phenomenon occurs for any channel, realizes alarm；
Analog input mModule connects external temperature sensor, for detecting environment temperature；
Charactron, for recycling display multi-channel DC current value, busbar voltage, environment temperature, sequence number, arc discharge is led to
Road；
Software control procedure is burnt in dsp processor by burning mouth for turning serial ports tool by USB；
It further include 485 communication ports and 485 communication power supplies, 485 communication port and 485 communication power supply connection signals and isolated from power
Module, the signal and power isolation module connect dsp processor, and 485 communication ports are communicated by modebus agreement and host computer.
2. arc current intelligent detection module according to claim 1, which is characterized in that the dsp processor electrical connection
Lightning protection state switching input module, for detecting lightning protection state.
3. arc current intelligent detection module according to claim 1, which is characterized in that the dsp processor electrical connection
Key module controls electric current, voltage, temperature and the arc channel that charactron recycles display module by key module, can be with
The address and baud rate of modified module.
4. arc current intelligent detection module according to claim 1, which is characterized in that LED light includes communication indicator light
And run indicator, indicator light blinking green indicator light when 485 communication ports receive is communicated, flash red indicator light when transmission,
Run indicator is always on after module energization.
5. a kind of working method of arc current intelligent detection module, which comprises the steps of:
(1) dsp processor Initialize installation subsequently enters detection program；
(2) it chooses whether to carry out current detecting, if so, multi channel currents detection module starts to detect all channel currents and feed back
Next step is subsequently entered to dsp processor, if it is not, being directly entered next step；
(3) it chooses whether to carry out busbar voltage detection, if so, differential voltage acquisition module starts to detect busbar voltage and feed back to
Dsp processor subsequently enters next step, if it is not, being directly entered next step；
(4) Analog input mModule detects environment temperature；
(5) lightning protection state switching input module detects lightning protection state, if so, mode bit set, if nothing, mode bit is reset；
(6) circuit-breaker status switching input module detects circuit-breaker status, if so, mode bit set, if nothing, mode bit is clear
Zero；
(7) if 485 ports receive data, DPS processor handles modebus information, next step is subsequently entered, if not connecing
Data are received, next step is directly entered；
(8) multichannel electric arc detection module carries out arc-detection and feeds back to dsp processor, if electric arc exceeds threshold value, feed back has out
The channel of electric arc, and be shown on charactron, if not exceeding threshold value, repeat step (2)-(8).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910271335.XA CN109975669A (en) | 2019-04-04 | 2019-04-04 | Arc current intelligent detection module and its working method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910271335.XA CN109975669A (en) | 2019-04-04 | 2019-04-04 | Arc current intelligent detection module and its working method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109975669A true CN109975669A (en) | 2019-07-05 |
Family
ID=67083028
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910271335.XA Pending CN109975669A (en) | 2019-04-04 | 2019-04-04 | Arc current intelligent detection module and its working method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109975669A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111025102A (en) * | 2019-12-13 | 2020-04-17 | 湖南长高思瑞自动化有限公司 | Low-voltage arc fault detection method and device based on voltage waveform analysis |
| CN112309075A (en) * | 2020-10-20 | 2021-02-02 | 东南大学 | Fire early warning system of photovoltaic power station |
| CN112763792A (en) * | 2019-11-06 | 2021-05-07 | 株洲中车时代电气股份有限公司 | Intelligent current sensor and current collection method based on intelligent current sensor |
| CN112763857A (en) * | 2020-04-27 | 2021-05-07 | 天津市中力神盾电子科技有限公司 | Fault arc detection method and product thereof |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202586499U (en) * | 2012-04-01 | 2012-12-05 | 上海晖保新能源科技有限公司 | Intelligent arc detection device used for photovoltaic-power-station direct current side |
| CN104052400A (en) * | 2013-03-15 | 2014-09-17 | 控制技术有限公司 | Method and device for detecting arc on circuit |
| CN104092440A (en) * | 2014-07-21 | 2014-10-08 | 阳光电源股份有限公司 | Photovoltaic system direct-current arc fault detection method, device, processor and system |
| CN204989375U (en) * | 2015-09-07 | 2016-01-20 | 苏州长风自动化科技有限公司 | Intellectual detection system unit and collection flow box with direct current draws arc to detect function |
| CN106990282A (en) * | 2017-04-19 | 2017-07-28 | 宁波中车时代传感技术有限公司 | Multi channel currents sensor is used in direct-current arc detection |
| CN109239558A (en) * | 2018-11-08 | 2019-01-18 | 重庆大学 | A kind of DC Line Fault arc-detection and protective device |
-
2019
- 2019-04-04 CN CN201910271335.XA patent/CN109975669A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202586499U (en) * | 2012-04-01 | 2012-12-05 | 上海晖保新能源科技有限公司 | Intelligent arc detection device used for photovoltaic-power-station direct current side |
| CN104052400A (en) * | 2013-03-15 | 2014-09-17 | 控制技术有限公司 | Method and device for detecting arc on circuit |
| CN104092440A (en) * | 2014-07-21 | 2014-10-08 | 阳光电源股份有限公司 | Photovoltaic system direct-current arc fault detection method, device, processor and system |
| CN204989375U (en) * | 2015-09-07 | 2016-01-20 | 苏州长风自动化科技有限公司 | Intellectual detection system unit and collection flow box with direct current draws arc to detect function |
| CN106990282A (en) * | 2017-04-19 | 2017-07-28 | 宁波中车时代传感技术有限公司 | Multi channel currents sensor is used in direct-current arc detection |
| CN109239558A (en) * | 2018-11-08 | 2019-01-18 | 重庆大学 | A kind of DC Line Fault arc-detection and protective device |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112763792A (en) * | 2019-11-06 | 2021-05-07 | 株洲中车时代电气股份有限公司 | Intelligent current sensor and current collection method based on intelligent current sensor |
| CN112763792B (en) * | 2019-11-06 | 2022-08-19 | 株洲中车时代电气股份有限公司 | Intelligent current sensor and current acquisition method based on intelligent current sensor |
| CN111025102A (en) * | 2019-12-13 | 2020-04-17 | 湖南长高思瑞自动化有限公司 | Low-voltage arc fault detection method and device based on voltage waveform analysis |
| CN112763857A (en) * | 2020-04-27 | 2021-05-07 | 天津市中力神盾电子科技有限公司 | Fault arc detection method and product thereof |
| CN112763857B (en) * | 2020-04-27 | 2022-03-29 | 天津市中力神盾电子科技有限公司 | Fault arc detection method and product thereof |
| CN112309075A (en) * | 2020-10-20 | 2021-02-02 | 东南大学 | Fire early warning system of photovoltaic power station |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN109975669A (en) | Arc current intelligent detection module and its working method | |
| CN104466736B (en) | Intelligent domestic power distribution device with various electricity protection functions | |
| CN106992550A (en) | A kind of control device and header box | |
| CN103095102B (en) | Frequency converter control method and equipment and converter | |
| US20220224152A1 (en) | Communication power supply system | |
| CN203984337U (en) | A kind of low profile photovoltaic header box | |
| CN209448232U (en) | A kind of controller switching equipment and distribution system | |
| CN208368861U (en) | A kind of storage pole-mounted circuit breaker power distribution automation transformation air plug conversion equipment | |
| CN204992572U (en) | Modularization dc power distribution unit | |
| CN104734031A (en) | Power distribution cabinet special for low-voltage distribution system | |
| CN110556794B (en) | Bus bar protection configuration method of multi-end hybrid direct current system | |
| CN203491969U (en) | Safe direct current combiner box | |
| US6420850B1 (en) | Telecommunication power distribution systems and apparatuses and methods of supplying power to a telecommunication device | |
| CN208797655U (en) | A kind of DC charging equipment | |
| CN201813160U (en) | Direct-current power distribution box | |
| CN105590493A (en) | Distributed intelligent substation accident simulation system | |
| CN104538163A (en) | Mutual inductor collection device | |
| CN104734059A (en) | Spot monitoring type low-voltage power parameter monitoring system | |
| CN204559785U (en) | The video frequency car position detector that composite signal bus serial connects and detection array | |
| CN104538849A (en) | Mutual inductor collecting device | |
| CN210074487U (en) | Mobile safety power supply cabinet | |
| CN204515499U (en) | For the data acquisition control module of LV intelligent switching system | |
| CN212114888U (en) | Power distribution system | |
| CN220570320U (en) | Direct current traction relay protection device | |
| CN2733377Y (en) | Photo-electric distributor for amplifying and isolating radar signals |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20190705 |