CN108832722A - A kind of distribution transformer load monitor system based on LoRa communication mode - Google Patents
A kind of distribution transformer load monitor system based on LoRa communication mode Download PDFInfo
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- CN108832722A CN108832722A CN201810756163.0A CN201810756163A CN108832722A CN 108832722 A CN108832722 A CN 108832722A CN 201810756163 A CN201810756163 A CN 201810756163A CN 108832722 A CN108832722 A CN 108832722A
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- QVFWZNCVPCJQOP-UHFFFAOYSA-N chloralodol Chemical compound CC(O)(C)CC(C)OC(O)C(Cl)(Cl)Cl QVFWZNCVPCJQOP-UHFFFAOYSA-N 0.000 title claims abstract description 45
- 238000004891 communication Methods 0.000 title claims abstract description 45
- 230000006698 induction Effects 0.000 claims abstract description 5
- 238000000034 method Methods 0.000 claims description 7
- 238000012544 monitoring process Methods 0.000 abstract description 6
- 238000005516 engineering process Methods 0.000 description 3
- 238000004458 analytical method Methods 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 2
- 230000005611 electricity Effects 0.000 description 2
- 238000005265 energy consumption Methods 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 238000005259 measurement Methods 0.000 description 2
- 230000008447 perception Effects 0.000 description 2
- 238000001228 spectrum Methods 0.000 description 2
- 230000002159 abnormal effect Effects 0.000 description 1
- 239000003086 colorant Substances 0.000 description 1
- 230000006837 decompression Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
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- 238000012546 transfer Methods 0.000 description 1
- 230000001131 transforming effect Effects 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
Classifications
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- H02J13/0075—
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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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- 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
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
-
- 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
- Y04—INFORMATION OR COMMUNICATION TECHNOLOGIES HAVING AN IMPACT ON OTHER TECHNOLOGY AREAS
- Y04S—SYSTEMS INTEGRATING TECHNOLOGIES RELATED TO POWER NETWORK OPERATION, COMMUNICATION OR INFORMATION TECHNOLOGIES FOR IMPROVING THE ELECTRICAL POWER GENERATION, TRANSMISSION, DISTRIBUTION, MANAGEMENT OR USAGE, i.e. SMART GRIDS
- Y04S40/00—Systems for electrical power generation, transmission, distribution or end-user application management characterised by the use of communication or information technologies, or communication or information technology specific aspects supporting them
- Y04S40/12—Systems for electrical power generation, transmission, distribution or end-user application management characterised by the use of communication or information technologies, or communication or information technology specific aspects supporting them characterised by data transport means between the monitoring, controlling or managing units and monitored, controlled or operated electrical equipment
- Y04S40/126—Systems for electrical power generation, transmission, distribution or end-user application management characterised by the use of communication or information technologies, or communication or information technology specific aspects supporting them characterised by data transport means between the monitoring, controlling or managing units and monitored, controlled or operated electrical equipment using wireless data transmission
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- Remote Monitoring And Control Of Power-Distribution Networks (AREA)
Abstract
This application discloses a kind of distribution transformer load monitor systems based on LoRa communication mode, are related to the status monitoring field of distribution transformer, invent to solve the problems, such as to be unable to real-time monitoring distribution transformer load in the prior art.The system mainly includes：Distribution transformer and terminal；In distribution transformer side, including：With the threephase current transformer CT of distribution transformer low-pressure side induction connection；The data acquisition being connect with three-phase CT and cache unit；The first LoRa communication data transceiver being connect with data acquisition and cache unit；The Switching Power Supply being connect with data acquisition and cache unit；The Switching Power Supply is connect with any quarter-phase circuit of the distribution transformer low-pressure side three-phase output end；In terminal side, including：The gateway being connect with the 2nd LoRa communication data transceiver；The server being connect with gateway；The terminal being connect with server.During the application is mainly used in monitoring distribution transformer load.
Description
Technical field
This application involves the status monitoring field of distribution transformer more particularly to a kind of distribution based on LoRa communication mode
Transformer load monitors system.
Background technique
Distribution transformer typically refers to operate in that voltage class in power distribution network is 10-35KV, capacity is 6300KVA and following
The power transformer directly powered to terminal user.It can be configured in each cell, every factory, school of every institute and each village
The dosage of the distribution transformer of different number different capabilities, distribution transformer has a wide range of application greatly, therefore distribution transformer is strong
Health state and everyone production and living state are closely bound up.
It is Dyn11 type that the winding connection of distribution transformer, which hinders other base, and the load of low-pressure side mainly uses 220V power supply (two
Phase), if the a-n load of access is more, the coil load that will result in A-N is larger, and the load of other two-phases b-n and c-n
Less than normal, although the sum of three-phase load is not above the capacity of distribution transforming, a-n single-phase load has been more than that it bears to set up, just
It will cause Allocation transformer depressor to damage because load unbalanced and deviation is excessive.It is had in the regional scope that every power supply bureau is administered
Station power distribution transformers thousands of or even up to ten thousand only rely on manpower walkaround inspection load, and workload is huge and cannot achieve.Especially partially
The distribution transformer in remote area, after only current catastrophic failure damage, power supply unit is connected to phone call for appeal and just knows.Distribution becomes
Depressor damages suddenly brings great inconvenience to people's lives,
Summary of the invention
This application provides a kind of distribution transformer load monitor systems based on LoRa communication mode, to solve existing skill
The problem of real-time monitoring distribution transformer load is unable in art.
In a first aspect, this application provides a kind of distribution transformer load monitor system based on LoRa communication mode, it should
Method includes：Distribution transformer and terminal；The distribution transformer side, including：With the induction connection of distribution transformer low-pressure side
Threephase current transformer CT；The data acquisition being connect with the three-phase CT and cache unit；It acquires and caches with the data and is single
First LoRa communication data transceiver of member connection；The Switching Power Supply being connect with data acquisition and cache unit；It is described to open
Powered-down source is connect with any quarter-phase circuit of the distribution transformer low-pressure side three-phase output end；The terminal side, including：With
The gateway of two LoRa communication data transceivers connection；The server being connect with the gateway；The terminal being connect with the server.
With reference to first aspect, in a first possible implementation of that first aspect, the system also includes：With described
The indicator light of one LoRa communication data transceiver connection.
With reference to first aspect, in the second possible implementation of the first aspect, the output electricity of the Switching Power Supply
Pressure is 12V.
With reference to first aspect, in a third possible implementation of the first aspect, the first LoRa communication data
The covering radius of transceiver and the 2nd LoRa communication data transceiver is all 30 kilometers.
With reference to first aspect, in a fourth possible implementation of the first aspect, the system also includes：With distribution
The on-load switch of step down side connection, the on-load switch control whether the distribution transformer connects user's end load.
A kind of distribution transformer load monitor system based on LoRa communication mode provided by the present application, in distribution transformer
Side acquires load current by the three-phase CT of distribution transformer side, is converted into load current by data acquisition and cache unit
Digital signal simultaneously saves, and sends load current by the first LoRa communication data transceiver, Switching Power Supply is low by distribution transformer
The alternating current of pressure side is converted to the direct current used for data acquisition and cache unit.It is communicated in terminal side by the 2nd LoRa
Data collector receives load current, load current is transmitted to server by gateway, through server transport to terminal.It is logical
The load current of distribution transformer can be monitored by crossing terminal, monitor the service condition of distribution transformer in real time.
Detailed description of the invention
In order to illustrate more clearly of the technical solution of the application, letter will be made to attached drawing needed in the embodiment below
Singly introduce, it should be apparent that, for those of ordinary skills, without creative efforts, also
Other drawings may be obtained according to these drawings without any creative labor.
Fig. 1 is a kind of distribution transformer load monitor system structural representation based on LoRa communication mode provided by the present application
Figure.
Detailed description of the invention：1- distribution transformer, the acquisition of 2- three-phase CT, 3- data and cache unit；The first LoRa of 4- communicates number
According to transceiver, 5- Switching Power Supply, 6- on-load switch, the 2nd LoRa communication data transceiver of 7-, 8- gateway, 9- server, 10- end
End, 11- indicator light.
Specific embodiment
In the system component of Internet of Things, it is broadly divided into perception, the communication technology, several big frameworks of cloud computing.Perception is by front end
Data acquisition unit complete, mechanics of communication use the LoRa communication technology, be a kind of low-power consumption ultra long haul based on spread spectrum
From wireless communication technique, narrowband spread spectrum is mainly used, strong antijamming capability can solve in Internet of Things object to the channel radio of object
News demand.Base station or gateway have very strong penetration power, can reach 30 kilometers in the distance of connection sensor, transmission rate compared with
It is low so that it is low in energy consumption, battery life is long.Its node can achieve million ranks, these features make it is low in energy consumption, remote,
A large amount of Internet of Things demand sides are applied.Its networking is freer, without being limited to the network of China Mobile, telecommunications, therefore electricity
The Internet of Things that distribution transformer in net is relatively suitably based on LoRa communication mode is set up.
It is a kind of distribution transformer load monitor system knot based on LoRa communication mode provided by the present application referring to Fig. 1
Structure schematic diagram.A kind of distribution transformer load monitor system based on LoRa communication mode provided by the present application, the system include：
Distribution transformer and terminal；
In the distribution transformer side, including：
With the threephase current transformer CT of distribution transformer low-pressure side induction connection；
The data acquisition being connect with the three-phase CT and cache unit；
The first LoRa communication data transceiver being connect with data acquisition and cache unit；
The Switching Power Supply being connect with data acquisition and cache unit；
The Switching Power Supply is connect with any quarter-phase circuit of the distribution transformer low-pressure side three-phase output end；
In the terminal side, including：
The gateway being connect with the 2nd LoRa communication data transceiver；
The server being connect with the gateway；
The terminal being connect with the server.
The induction connection of distribution transformer low-pressure side three-phase CT, three-phase CT acquire the load current of low pressure abc three-phase, will be primary
The electric current of higher magnitude is converted to secondary low current signal, is sent in data acquisition and cache chip, data acquisition and caching
Analog current signal has been carried out digital conversion by chip, is stored in cache chip.Three-phase CT installation and distribution transformer lower end
Switchgear cabinet in, tens of peaces of low-pressure side abc three-phase or hundreds of amperes of high current are converted into the low current within 5A
Signal, and the analog quantity of measurement is transferred to data acquisition and cache unit.Data acquisition and cache unit are responsible for three-phase CT
Low current signal after conversion is converted to digital signal, stores the amplitude of low current signal.In order to reduce power consumption, may be designed as every
Separated in time acquisition is primary, and the time interval for measuring load current is set as the set time, is guaranteeing that measurement is accurate
In the case of, the flow of data transmission will be greatly reduced, with the accuracy rate and reliability of improve data transfer.Data acquisition and caching
Collected load current is stored and transported to the first LoRa communication data transceiver by unit.The transmitting-receiving of first LoRa communication data
Device emits load current, and the 2nd LoRa communication data transceiver is responsible for receiving load current, and sends gateway for load current
In.First LoRa communication data transceiver also carries geographical location, the route platform area of distribution transformer when emitting load current
Information.
The installation of 2nd LoRa communication data transceiver directly passes through conducting wire with gateway and connect, and gateway and server pass through interconnection
Net connection, server and terminal are connected also by internet.Gateway obtains the 2nd received load of LoRa communication data transceiver
Electric current, then internet is accessed by cable network, it is sent to server, the mountable cloud computing platform of server, cloud computing platform
The Macro or mass analysis to different cities and counties can be carried out, the load that can achieve tens of thousands of station power distribution transformers of the whole province's range in this way is supervised in real time
It surveys.Server is responsible for uploading to cloud space and carrying out computer tube the collected current data of distribution transformer in network-wide basis
Reason system.Terminal is used to show that the real time data of server received and cloud computing platform to calculate the result of analysis.
Further, the system also includes：The indicator light being connect with the first LoRa communication data transceiver.
Cloud computing platform all load currents are calculated, are analyzed and provide distribution transformer operation it is exceeded pre-
Alert, such as electric current running overload, uneven exceeded early warning, prior-warning device passes through the switchgear that is mounted on beside distribution transformer
On indicator light show that be normally shown as green light, abnormal show is red light.When monitoring to run exceeded early warning, alarm is sent
Signal to the gateway for receiving the load current, then the 2nd LoRa communication data transceiver by connecting with gateway sends alarm signal
Number, the first LoRa communication data transceiver receives the alarm signal, and changes indicator light colors according to the signal.
Further, the output voltage of the Switching Power Supply is 12V.
Switching Power Supply is the time ratio that control switch pipe turns on and off using modern power electronics technology, remains steady
Determine a kind of power supply of output voltage.Switching Power Supply carries out rectification decompression and turns by obtaining distribution transformer 400V low-side power
It changes, power frequency electric is become into the DC power supply that the unit that 12V emits for signal acquisition and data uses.
Further, the covering of the first LoRa communication data transceiver and the 2nd LoRa communication data transceiver
Radius is all 30 kilometers.
Further, the system also includes：The on-load switch being connect with distribution transformer low-pressure side, the on-load switch
Control whether the distribution transformer connects user's end load.
A kind of distribution transformer load monitor system based on LoRa communication mode provided by the present application, in distribution transformer
Side acquires load current by the three-phase CT of distribution transformer side, is converted into load current by data acquisition and cache unit
Digital signal simultaneously saves, and sends load current by the first LoRa communication data transceiver, Switching Power Supply is low by distribution transformer
The alternating current of pressure side is converted to the direct current used for data acquisition and cache unit.It is communicated in terminal side by the 2nd LoRa
Data collector receives load current, load current is transmitted to server by gateway, through server transport to terminal.It is logical
The load current of distribution transformer can be monitored by crossing terminal, monitor the service condition of distribution transformer in real time.
Same and similar part may refer to each other between each embodiment in this specification.Above-described the application is real
The mode of applying is not intended to limit the scope of the present invention..
Claims (5)
1. a kind of distribution transformer load monitor system based on LoRa communication mode, which is characterized in that the system comprises：Match
Piezoelectric transformer and terminal；
In the distribution transformer side, including：
With the threephase current transformer CT of distribution transformer low-pressure side induction connection；
The data acquisition being connect with the three-phase CT and cache unit；
The first LoRa communication data transceiver being connect with data acquisition and cache unit；
The Switching Power Supply being connect with data acquisition and cache unit；
The Switching Power Supply is connect with any quarter-phase circuit of the distribution transformer low-pressure side three-phase output end；
In the terminal side, including：
The gateway being connect with the 2nd LoRa communication data transceiver；
The server being connect with the gateway；
The terminal being connect with the server.
2. the method as described in claim 1, which is characterized in that the system also includes：With the first LoRa communication data
The indicator light of transceiver connection.
3. the method as described in claim 1, which is characterized in that the output voltage of the Switching Power Supply is 12V.
4. the method as described in claim 1, which is characterized in that the first LoRa communication data transceiver and described second
The covering radius of LoRa communication data transceiver is all 30 kilometers.
5. the method as described in claim 1, which is characterized in that the system also includes：It is connect with distribution transformer low-pressure side
On-load switch, the on-load switch controls whether the distribution transformer connects user's end load.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810756163.0A CN108832722A (en) | 2018-07-11 | 2018-07-11 | A kind of distribution transformer load monitor system based on LoRa communication mode |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810756163.0A CN108832722A (en) | 2018-07-11 | 2018-07-11 | A kind of distribution transformer load monitor system based on LoRa communication mode |
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| CN108832722A true CN108832722A (en) | 2018-11-16 |
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| CN201810756163.0A Pending CN108832722A (en) | 2018-07-11 | 2018-07-11 | A kind of distribution transformer load monitor system based on LoRa communication mode |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109638968A (en) * | 2019-01-03 | 2019-04-16 | 国网新疆电力有限公司 | A kind of transforming plant distributed transformer and mutual inductor state monitoring method |
| CN110213387A (en) * | 2019-06-28 | 2019-09-06 | 西安西拓电气股份有限公司 | Power equipment monitoring method and system |
| CN114295911A (en) * | 2021-12-12 | 2022-04-08 | 云南电网有限责任公司昆明供电局 | Distribution transformer load side current acquisition fault alarm device |
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| CN105938346A (en) * | 2016-06-23 | 2016-09-14 | 国网山东省电力公司安丘市供电公司 | Electricity larceny prevention power metering intelligent acquisition terminal system |
| CN107196417A (en) * | 2017-07-21 | 2017-09-22 | 福州大学 | Low-voltage distribution running status remote supervision system based on LoRa mechanicss of communication |
| CN107566521A (en) * | 2017-09-28 | 2018-01-09 | 河南汇纳科技有限公司 | A kind of intelligent power distribution room environmental monitoring wireless sensing system based on LoRa |
| CN207318625U (en) * | 2016-12-05 | 2018-05-04 | 西安兴汇电力科技有限公司 | A kind of 0.4KV low-voltage distributing lines on-line monitoring system |
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2018
- 2018-07-11 CN CN201810756163.0A patent/CN108832722A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105938346A (en) * | 2016-06-23 | 2016-09-14 | 国网山东省电力公司安丘市供电公司 | Electricity larceny prevention power metering intelligent acquisition terminal system |
| CN207318625U (en) * | 2016-12-05 | 2018-05-04 | 西安兴汇电力科技有限公司 | A kind of 0.4KV low-voltage distributing lines on-line monitoring system |
| CN107196417A (en) * | 2017-07-21 | 2017-09-22 | 福州大学 | Low-voltage distribution running status remote supervision system based on LoRa mechanicss of communication |
| CN107566521A (en) * | 2017-09-28 | 2018-01-09 | 河南汇纳科技有限公司 | A kind of intelligent power distribution room environmental monitoring wireless sensing system based on LoRa |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109638968A (en) * | 2019-01-03 | 2019-04-16 | 国网新疆电力有限公司 | A kind of transforming plant distributed transformer and mutual inductor state monitoring method |
| CN110213387A (en) * | 2019-06-28 | 2019-09-06 | 西安西拓电气股份有限公司 | Power equipment monitoring method and system |
| CN114295911A (en) * | 2021-12-12 | 2022-04-08 | 云南电网有限责任公司昆明供电局 | Distribution transformer load side current acquisition fault alarm device |
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Application publication date: 20181116 |