CN207895016U - A kind of distribution network electric energy quality monitoring device - Google Patents
A kind of distribution network electric energy quality monitoring device Download PDFInfo
- Publication number
- CN207895016U CN207895016U CN201820355125.XU CN201820355125U CN207895016U CN 207895016 U CN207895016 U CN 207895016U CN 201820355125 U CN201820355125 U CN 201820355125U CN 207895016 U CN207895016 U CN 207895016U
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- electric energy
- distribution network
- microcontroller
- power supply
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- 238000012806 monitoring device Methods 0.000 title claims abstract description 15
- 238000004891 communication Methods 0.000 claims abstract description 16
- 238000005259 measurement Methods 0.000 claims description 7
- 230000005611 electricity Effects 0.000 claims description 5
- 238000012544 monitoring process Methods 0.000 description 5
- 238000004804 winding Methods 0.000 description 4
- 238000013461 design Methods 0.000 description 3
- 240000002853 Nelumbo nucifera Species 0.000 description 1
- 235000006508 Nelumbo nucifera Nutrition 0.000 description 1
- 235000006510 Nelumbo pentapetala Nutrition 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
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
Classifications
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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
-
- 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
- Y04S10/00—Systems supporting electrical power generation, transmission or distribution
- Y04S10/50—Systems or methods supporting the power network operation or management, involving a certain degree of interaction with the load-side end user applications
- Y04S10/52—Outage or fault management, e.g. fault detection or location
-
- 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
- Y04S20/00—Management or operation of end-user stationary applications or the last stages of power distribution; Controlling, monitoring or operating thereof
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- Remote Monitoring And Control Of Power-Distribution Networks (AREA)
Abstract
The utility model discloses a kind of distribution network electric energy quality monitoring devices; including microcontroller and power supply module; microcontroller has first serial and second serial; first serial connects serial port circuit; the communication module that serial port circuit is connected to memory and is communicated for realizing microcontroller and host computer; second serial connects expansion interface; expansion interface is connected to relay protection circuit; the input of microcontroller is terminated with electric energy computation chip, and the input of electric energy computation chip is terminated with current transformer and voltage transformer.In the utility model; the electric current, voltage, power and the electric energy that measure obtained power distribution network in real time are sent to host computer by electric energy computation chip through microcontroller; the staff of upper computer end is facilitated to carry out statistics, analysis, retrieval and the inquiry of data; staff can be cut off the subscribers' line of harmonic excess by relay protection circuit; then it is effectively administered; it protects power distribution network not contaminated, reduces loss.
Description
Technical field
The utility model belongs to power distribution network monitoring technical field, and in particular to a kind of distribution network electric energy quality monitoring device.
Background technology
The safe and stable operation of raising with user to power supply reliability, power distribution network is particularly important.Power distribution network net
Frame is complicated, number of devices is more, involves a wide range of knowledge, and often brings potential risks to power distribution network, therefore to distribution network electric energy quality
Monitoring has important practical significance.According to the viewpoint of modern control theory, to implement effectively control to a system, it is necessary to first
This system can first be observed.By realizing that the power quality to power distribution network node data monitor and control in real time, for
The supervision and improvement of the whole network power quality all have important practical value.
Power distribution network has no real-time on-line monitoring system at present, the monitoring to distribution network electric energy quality, generally all annual
Or several typical days of every season, detect the parameters of distribution network load characteristic manually by staff, or be found that problem
Test is gone to solve again later, traditional node data monitoring system comprehensive cannot be shared in data, resource etc., in electric energy
Always it is in passive position in quality management, the demand for development of first-class intelligent distribution network can not be adapted to.In general, in distribution
Level, electric network composition, power load distributing be all relatively easy to artificially be planned, the basic condition of various regions is not much different, main
Influence factor is part throttle characteristics.Therefore the part throttle characteristics of power distribution network node is detected and is of great significance, it can not only be timely
The real time execution situation for reflecting power distribution network, facilitates staff to grasp the load variations of distribution line, line harmonic situation in time,
It searches power quality and deteriorates source, and advantageously ensure that safety and stability and the economical operation of electric system.
Utility model content
The technical problem to be solved by the utility model is to the deficiencies in for the above-mentioned prior art, provide a kind of distribution
Network electric energy quality monitoring device, simple structure and reasonable design, electric energy computation chip will measure the electricity of obtained power distribution network in real time
Stream, voltage, power and electric energy are sent to microcontroller, the electricity for the power distribution network that microcontroller obtains electric energy computation chip measurement
Stream, voltage, power and electric energy are sent to host computer simultaneously, facilitate the staff of upper computer end carry out the statistics of data, analysis,
The subscribers' line of harmonic excess can be cut off by relay protection circuit, then carried out by retrieval and inquiry, staff
It is effective to administer, it protects power distribution network not contaminated, reduces loss.
In order to solve the above technical problems, the technical solution adopted in the utility model is：A kind of distribution network electric energy quality monitoring
Device, it is characterised in that：Including microcontroller and power supply module, the microcontroller has first serial and second serial, institute
State first serial connection serial port circuit, the serial port circuit is connected to memory and is communicated for realizing microcontroller and host computer
Communication module, the second serial connect expansion interface, and the expansion interface is connected to relay protection circuit, the microcontroller
Input be terminated with electric energy computation chip, the input of the electric energy computation chip is terminated with current transformer and voltage transformer,
The power supply module include main power source, stand-by power supply and for when main power source break down time control stand-by power supply power supply power supply
Handover module.
A kind of above-mentioned distribution network electric energy quality monitoring device, it is characterised in that：The stand-by power supply is solar powered
Power supply.
A kind of above-mentioned distribution network electric energy quality monitoring device, it is characterised in that：The communication module is radio communication mold
Block.
A kind of above-mentioned distribution network electric energy quality monitoring device, it is characterised in that：The electric energy computation chip is chip
ATT7022B。
A kind of above-mentioned distribution network electric energy quality monitoring device, it is characterised in that：The microcontroller is chip
P89V51RD2。
The utility model has the following advantages compared with prior art：
1, the utility model has the advantages of simple structure, reasonable design, realizes and using easy to operate.
2, in the utility model, current transformer by enterprise customer line inlet, substation line outlet or 10KV main lines
Primary side high current at network node location is converted into the low current of secondary side, and it is mutual then to measure electric current through electric energy computation chip
The low current of sensor secondary side, to obtain the electric current of power distribution network；The first winding of voltage transformer is simultaneously connected in enterprise customer
On at line inlet, substation line outlet or 10KV main line network node locations, the secondary winding of voltage transformer and connection
On electric energy computation chip, electric energy computation chip measurement obtains the voltage, power and electric energy of power distribution network.
3, in the utility model, electric energy computation chip will measure electric current, voltage, power and the electricity of obtained power distribution network in real time
Microcontroller, electric current, voltage, power and the electric energy of the power distribution network that microcontroller obtains electric energy computation chip measurement can be sent to
It is sent to wireless communication module and memory simultaneously, memory stores the electric current of power distribution network, voltage, power and electric energy,
Staff is facilitated to call in the future, the electric current of power distribution network, voltage, power and electric energy are sent to host computer by wireless communication module,
The staff of upper computer end is facilitated to carry out statistics, analysis, retrieval and the inquiry of data, it is negative to understand distribution network line in real time
The situation of change of lotus, staff can be cut off the subscribers' line of harmonic excess by relay protection circuit, then into traveling
Row is effective to be administered, and is protected power distribution network not contaminated, is protected other electrical equipments, reduces loss.
In conclusion the utility model simple structure and reasonable design, electric energy computation chip will measure obtained distribution in real time
Electric current, voltage, power and the electric energy of net are sent to microcontroller, the power distribution network that microcontroller obtains electric energy computation chip measurement
Electric current, voltage, power and electric energy simultaneously be sent to host computer, facilitate upper computer end staff carry out data statistics,
The subscribers' line of harmonic excess can be cut off by relay protection circuit, then carried out by analysis, retrieval and inquiry, staff
It is effectively administered, protects power distribution network not contaminated, reduce loss.
Below by drawings and examples, the technical solution of the utility model is described in further detail.
Description of the drawings
Fig. 1 is the schematic block circuit diagram of the utility model.
Reference sign:
1-microcontroller；2-electric energy computation chips；3-current transformers；
4-voltage transformers；5-serial port circuits；6-expansion interfaces；
7-wireless communication modules；8-memories；9-host computers；
10-relay protection circuits；11-main power sources；12-stand-by power supplies；
13-power supply handover modules.
Specific implementation mode
As shown in Figure 1, the utility model includes microcontroller 1 and power supply module, the microcontroller 1 has first serial
And second serial, the first serial connect serial port circuit 5, the serial port circuit 5 is connected to memory 8 and for realizing microcontroller
The communication module that device 1 and host computer 9 communicate, the second serial connect expansion interface 6, and the expansion interface 6 is connected to relay
Circuit 10, the input of the microcontroller 1 is protected to be terminated with electric energy computation chip 2, the input termination of the electric energy computation chip 2
There are current transformer 3 and voltage transformer 4, the power supply module to include main power source 11, stand-by power supply 12 and be used to work as main power source
11 break down time control stand-by power supply 12 power supply power supply handover module 13.
In actual use, current transformer 3 and voltage transformer 4 are mounted on enterprise customer line inlet, substation line
At outlet or 10KV main line network node locations.Current transformer 3 by enterprise customer line inlet, substation line outlet or
Primary side high current at 10KV main line network node locations is converted into the low current of secondary side, then through electric energy computation chip 2
The low current of 3 secondary side of measurement current transform er, to obtain the electric current of power distribution network；The first winding of voltage transformer 4 is in parallel
On being connected at enterprise customer line inlet, substation line outlet or 10KV main line network node locations, the two of voltage transformer 4
Secondary winding parallel is connected on electric energy computation chip 2, and the measurement of electric energy computation chip 2 obtains the voltage, power and electric energy of power distribution network.
The electric current, voltage, power and the electric energy that measure obtained power distribution network in real time are sent to microcontroller by electric energy computation chip 2
Electric energy computation chip 2 is measured electric current, voltage, power and the electric energy of obtained power distribution network while is sent to by device 1, microcontroller 1
Wireless communication module 7 and memory 8, memory 8 store the electric current of power distribution network, voltage, power and electric energy, facilitate work
Personnel call in the future, and the electric current of power distribution network, voltage, power and electric energy are sent to host computer 9 by wireless communication module 7, in convenience
The staff at position 9 end of machine carries out statistics, analysis, retrieval and the inquiry of data, to understand distribution network line load in real time
The subscribers' line of harmonic excess can be cut off by relay protection circuit 10, then carried out by situation of change, staff
It is effective to administer, it protects power distribution network not contaminated, protects other electrical equipments, reduce loss.
In the present embodiment, the stand-by power supply 12 is solar powered power supply.
It should be noted that the device first choice is powered using main power source 11, main power source 11 is alternating current, when 11 dead electricity of main power source
When, power supply handover module 13 will power from 11 power switching of main power source to stand-by power supply 12, and stand-by power supply 12 is solar powered
Power supply improves the power supply reliability of device.
In the present embodiment, the communication module is wireless communication module 7.In actual use, wireless communication module 7 is GSM
Wireless network.
In the present embodiment, the electric energy computation chip 2 is chip ATT7022B.The microcontroller 1 is chip
P89V51RD2。
Chip ATT7022B is suitable for phase three-wire three and three-phase and four-line application, can measure each phase and close the wattful power of phase
Rate, reactive power, apparent energy, active energy and quadergy, while each phase current, voltage effective value, work(can also be measured
The parameters such as rate factor, phase angle, frequency, using effect are good.
The above is only the embodiments of the present invention, is not imposed any restrictions to the utility model, every according to this
Utility model technical spirit changes any simple modification, change and equivalent structure made by above example, still falls within
In the protection domain of technical solutions of the utility model.
Claims (5)
1. a kind of distribution network electric energy quality monitoring device, it is characterised in that：It is described micro- including microcontroller (1) and power supply module
There is controller (1) first serial and second serial, the first serial connection serial port circuit (5), the serial port circuit (5) to connect
The communication module for having memory (8) and being communicated for realizing microcontroller (1) and host computer (9), the second serial connection are expanded
Interface (6) is opened up, the expansion interface (6) is connected to relay protection circuit (10), and the input of the microcontroller (1) is terminated with electricity
Energy computation chip (2), the input of the electric energy computation chip (2) are terminated with current transformer (3) and voltage transformer (4), institute
It includes main power source (11), stand-by power supply (12) and for when main power source (11) breaks down time control stand-by power supply to state power supply module
(12) the power supply handover module (13) powered.
2. a kind of distribution network electric energy quality monitoring device described in accordance with the claim 1, it is characterised in that：The stand-by power supply
(12) it is solar powered power supply.
3. a kind of distribution network electric energy quality monitoring device described in accordance with the claim 1, it is characterised in that：The communication module is
Wireless communication module (7).
4. a kind of distribution network electric energy quality monitoring device described in accordance with the claim 1, it is characterised in that：The electrical energy measurement core
Piece (2) is chip ATT7022B.
5. a kind of distribution network electric energy quality monitoring device described in accordance with the claim 1, it is characterised in that：The microcontroller
(1) it is chip P89V51RD2.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820355125.XU CN207895016U (en) | 2018-03-15 | 2018-03-15 | A kind of distribution network electric energy quality monitoring device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820355125.XU CN207895016U (en) | 2018-03-15 | 2018-03-15 | A kind of distribution network electric energy quality monitoring device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207895016U true CN207895016U (en) | 2018-09-21 |
Family
ID=63542299
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820355125.XU Expired - Fee Related CN207895016U (en) | 2018-03-15 | 2018-03-15 | A kind of distribution network electric energy quality monitoring device |
Country Status (1)
| Country | Link |
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| CN (1) | CN207895016U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2021184695A1 (en) * | 2020-03-20 | 2021-09-23 | 威胜信息技术股份有限公司 | High-precision direct-current electric energy testing apparatus and method |
-
2018
- 2018-03-15 CN CN201820355125.XU patent/CN207895016U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2021184695A1 (en) * | 2020-03-20 | 2021-09-23 | 威胜信息技术股份有限公司 | High-precision direct-current electric energy testing apparatus and method |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180921 |
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| CF01 | Termination of patent right due to non-payment of annual fee |