CN206250852U - Electric power monitoring system - Google Patents
Electric power monitoring system Download PDFInfo
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- CN206250852U CN206250852U CN201621402253.2U CN201621402253U CN206250852U CN 206250852 U CN206250852 U CN 206250852U CN 201621402253 U CN201621402253 U CN 201621402253U CN 206250852 U CN206250852 U CN 206250852U
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- 238000004891 communication Methods 0.000 claims abstract description 41
- 230000001276 controlling effect Effects 0.000 claims abstract description 26
- 230000000875 corresponding Effects 0.000 claims abstract description 9
- 239000003365 glass fiber Substances 0.000 claims abstract description 4
- 238000006243 chemical reaction Methods 0.000 claims description 9
- 230000005611 electricity Effects 0.000 claims description 4
- 230000001131 transforming Effects 0.000 abstract description 4
- 238000010586 diagram Methods 0.000 description 3
- 238000005259 measurement Methods 0.000 description 3
- 230000002159 abnormal effect Effects 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 2
- 230000015556 catabolic process Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000036632 reaction speed Effects 0.000 description 2
- 238000005070 sampling Methods 0.000 description 2
- 206010010254 Concussion Diseases 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 230000001681 protective Effects 0.000 description 1
- 238000000844 transformation 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
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E40/00—Technologies for an efficient electrical power generation, transmission or distribution
- Y02E40/40—Arrangements for reducing harmonics
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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
- Y04S10/00—Systems supporting electrical power generation, transmission or distribution
- Y04S10/16—Electric power substations
Abstract
The utility model discloses electric power monitoring system, including monitoring management layer, Internet and live wall.Monitoring management layer includes monitoring host computer, UPS uninterrupted power sources and warning device；Internet includes interchanger and Duo Tai communication managers, and interchanger is communicated to connect by netting twine with monitoring host computer, and distinguishes many communication managers communication connections by optical fiber；Live wall includes some groups of the first measuring and controlling equipment groups and the second measuring and controlling equipment group；Every group of first measuring and controlling equipment group includes at least one multifunction electric meter, and at least one multifunction electric meter is connected by the communications cable with corresponding communication manager；Every group of second measuring and controlling equipment group includes at least one multifunction electric meter and at least one comprehensive relay protection device, and at least one multifunction electric meter and comprehensive relay protection device are connected by communication cable with corresponding communication manager.The utility model can carry out real-time data acquisition, working state monitoring and remote control to multiple electric substations of transformation and distribution system.
Description
Technical field
The utility model is related to electric power monitoring system.
Background technology
Power monitoring technology is relative in the market is in developing period, although the electric substation of some transformation and distribution systems using
Testing equipments such as intelligent electric meter, and realize a range of detection data communication, but as a whole, in communication can
Shortcomings are gone back, and lacks fast and effectively monitoring means by property and real-time, the flexibility aspect of networking.
The content of the invention
Technical problem to be solved in the utility model be provide it is a kind of can to transformation and distribution system in multiple power transformations
The electric power monitoring system of real-time data acquisition, working state monitoring and remote control is carried out simultaneously.
Another technical problem to be solved in the utility model is to provide a kind of current signal sampling precision electric power high
Monitoring system.
In order to solve the above technical problems, the utility model is adopted the technical scheme that：
Electric power monitoring system, including monitoring management layer, Internet and live wall；Monitoring management layer includes that monitoring is led
Machine, UPS uninterrupted power sources and warning device, the output end of UPS uninterrupted power sources are connected with the power input of monitoring host computer, prison
The first signal output part for controlling main frame is connected with the input of the warning device；Internet includes interchanger and Duo Tai communication pipes
Reason machine, interchanger is communicated to connect by netting twine with monitoring host computer, and is communicated to connect with many communication managers respectively by optical fiber；
Live wall include respectively with the one-to-one multigroup site measuring and control equipment group of many communication managers, multigroup scene is surveyed
Control equipment group includes some groups of the first measuring and controlling equipment groups and some groups of the second measuring and controlling equipment groups；Every group of first measuring and controlling equipment group includes
At least one multifunction electric meter, every group of at least one communication interface of multifunction electric meter of the first measuring and controlling equipment group passes through order wire
Cable is connected with corresponding communication manager；Every group of second measuring and controlling equipment group includes at least one multifunction electric meter and at least one
Comprehensive relay protection device, the communication interface of every group of at least one multifunction electric meter of the second measuring and controlling equipment group and at least one it is comprehensive
The communication interface for closing protective relaying device is connected by communication cable with corresponding communication manager.
After adopting the above technical scheme, the utility model at least has advantages below and feature：
1st, the utility model can configure multifunction electric meter, comprehensive relay protection device and communication pipe according to field working conditions
Reason machine etc., constitutes arbitrarily complicated monitoring system, realizes the flexibility of networking, reduces operation cost, improves monitoring effect
Rate；
2nd, the monitoring host computer of monitoring management layer can be directed to the parameter setting higher limit and lower limit for needing monitoring, by scene
The data that wall is collected are compared with the higher limit and lower limit that pre-set, realize breakdown judge, and event is occurring
Warning device timely alert is controlled during barrier, so as to accelerate to become the reaction speed of abnormal conditions in process of distributing electricity；
3rd, live wall is made up of intelligent electric meter and comprehensive relay protection device, with network communication function, not only may be used
By the upward transmission measurement value of communication network, semaphore information, comprehensive relay protection device can also carry out monitoring host computer output
Control command, additionally, the power measurement function of live wall is not influenceed by communication network, it can be ensured that the safety of system with can
By property；
4th, the current measuring device of live wall can reduce what is collected by setting RLC antiresonant circuits
The harmonic wave of ac current signal, so as to improve current sample precision, and damage when can be prevented effectively from high current to ammeter.
Brief description of the drawings
Fig. 1 is the schematic diagram of the electric power monitoring system according to the embodiment of the utility model one.
Fig. 2 shows the theory diagram of the current measuring device according to the embodiment of the utility model one.
Fig. 3 shows the circuit theory diagrams of the current-voltage conversion circuit according to the embodiment of the utility model one.
Specific embodiment
The utility model is described in detail with specific embodiment below in conjunction with the accompanying drawings.
Refer to Fig. 1.Electric power monitoring system according to the embodiment of the utility model one include monitoring management layer, Internet and
Live wall.
Monitoring management layer includes monitoring host computer 11, UPS uninterrupted power sources 12, warning device 13 and printer 14.Monitoring master
Machine 11 can realize communication by Internet with live wall, and complete the display function of data.Monitoring host computer 11 has man-machine
Interface, is easy to the regular job of operating personnel.The output end of UPS uninterrupted power sources 12 connects with the power input of monitoring host computer 11
Connect, be used to provide monitoring host computer 11 continuous power supply.First signal output part of monitoring host computer 11 is defeated with warning device 13
Enter end connection, the secondary signal output end of monitoring host computer 11 is connected with printer 14, the printable data form of printer 14, ripple
Shape figure etc..Warning device 13 can be alarm sound.
Internet includes interchanger 21 and Duo Tai communication managers 22, and interchanger 21 is communicated by netting twine with monitoring host computer 11
Connection, and communicated to connect with many communication managers 22 respectively by optical fiber.Interchanger 21 can support gigabit data transfer, complete
Data exchanging function.
Live wall include respectively with the one-to-one multigroup site measuring and control equipment group of many communication managers 22, it is multigroup
Site measuring and control equipment group includes some groups of the first measuring and controlling equipment groups 31 and some groups of the second measuring and controlling equipment groups 32.Every group of first observing and controlling
Equipment group 31 includes at least one multifunction electric meter 33, every group of at least one multifunction electric meter 33 of the first measuring and controlling equipment group it is logical
Communication interface passes through the communications cable（For example can be RS485 order wires）It is connected with corresponding communication manager 22.Every group second
Measuring and controlling equipment group 32 includes at least one multifunction electric meter 33 and at least one comprehensive relay protection device 34, every group of second observing and controlling
The communication interface and at least one communication interface of comprehensive relay protection device 34 of at least one multifunction electric meter 33 of equipment group
It is connected with corresponding communication manager 22 by communication cable.Some groups of implication is one or more groups of.
Multifunction electric meter 33 can the number such as Real-time Collection electric current, voltage, active power, reactive power, electric degree, power factor
According to comprehensive relay protection device 34 can gather the data such as crest voltage, peak point current, and directly can be sent out to the breaker for being controlled
Go out trip signal.The data that multifunction electric meter 33 and comprehensive relay protection device 34 are collected are sent to monitoring by Internet
Main frame 11, monitoring host computer 11 can as needed to Real-time Collection to data stored and shown, and further realize number
According to functions such as treatment, figure shows, report query, energy consumption analysis.In addition, monitoring host computer 11 will can also be collected as needed
Data are compared with the higher limit and lower limit that pre-set, realize breakdown judge, and when breaking down, control alarm dress
Put 13 timely alerts.Monitoring host computer can also be when breaking down, by Internet to comprehensive relay protection device 34
Control command is sent, circuit breaker trip is controlled by comprehensive relay protection device, become abnormal in process of distributing electricity so as to greatly speed up
The reaction speed of situation.
Electric power monitoring system according to the embodiment of the utility model one is also improved the measurement apparatus of alternating current, with
Improve the sampling precision of electric current.
Refer to Fig. 1, and combine shown in Fig. 2, every group of first measuring and controlling equipment group 31 and every group of second measuring and controlling equipment group 32
Include the quantity identical current measuring device 35 with multifunction electric meter 33；The output end of each current measuring device 35 and phase
The current signal collection terminal connection of the multifunction electric meter 33 answered.Each current measuring device 35 includes current transformer 35a and electricity
Stream voltage conversion circuit 35b.
Refer to Fig. 3.Current-voltage conversion circuit 35b includes the filter circuit 351, voltage follower circuit being sequentially connected
352nd, RLC antiresonant circuits 353 and Zero-cross comparator circuit 354；Wherein, the input and current transformer of filter circuit 351
The output end connection of 35a, the output end of Zero-cross comparator circuit 354 is connected with the current signal collection terminal of multifunction electric meter 33.
Preferably, current-voltage conversion circuit 35b also includes stagnant loop circuit 355, the input and zero passage of stagnant loop circuit 355
The output end connection of comparison circuit 354, the output end of stagnant loop circuit 355 connects with the current signal collection terminal of multifunction electric meter 33
Connect.
Filter circuit 351 is filtered by the signal that current transformer 35a is exported, and can reduce multifunction electric meter 33 and adopt
The signal and the phase error of power network for collecting, the signal phase synchronization for keeping power network and electric power monitoring system to be collected.Due to
Current transformer output is AC signal, and EMR electromagnetic resonance is susceptible in current-voltage conversion circuit, and EMR electromagnetic resonance can be made
Into circuit oscillation, amplifier multiple overflows, and ultimately results in the signal that ammeter collects inaccurate.If alternating current is larger
Words, or even the electrical equipment of ammeter can be caused to damage.In order to reduce the influence that EMR electromagnetic resonance is caused to ammeter, set in the present embodiment
RLC antiresonant circuits 353 are put.RLC antiresonant circuits 353 can be by the harmonic wave in ac signal by way of resonance
Consume.What Zero-cross comparator circuit 354 was exported is the square wave of and input signal zero crossing timing synchronization, realizes zero passage inspection
Survey, also achieve synchronization.And stagnant loop circuit 355 can further suppress interference and signal concussion.
In the present embodiment, filter circuit includes first resistor R1, second resistance R2, the first electric capacity C1 and the second electric capacity
C2.One end of first resistor R1 is connected with the output end of current transformer 35a, the other end of first resistor R1 and the first electric capacity C1
One end connection, the first electric capacity C1 the other end ground connection.One end of second resistance R2 is connected to first resistor R1 and the first electric capacity
The common node of C1, the other end of second resistance is connected with one end of the second electric capacity C2, the other end ground connection of the second electric capacity C2.
RLC antiresonant circuits 353 are made up of inductance L1 parallel with one another, 3rd resistor R3 and the 5th electric capacity C5.
Zero-cross comparator circuit 354 includes voltage comparator U2A, the 4th resistance R4 and the 5th resistance R5.Voltage comparator U2A
Positive terminal be connected with one end of the 4th resistance R4, the other end of the 4th resistance R4 ground connection.The end of oppisite phase of voltage comparator U2A with
The output end connection of RLC antiresonant circuits；The output end of voltage comparator U2A is connected with the input of stagnant loop circuit 355；The
The two ends of five resistance R5 are connected to the end of oppisite phase of voltage comparator U2A and the output end of voltage comparator U2A.
Stagnant loop circuit 355 includes the 6th resistance R6, the 7th resistance R7, the 8th resistance R8, the 3rd electric capacity C3 and the 4th electric capacity
C4.One end of 3rd electric capacity C3 is connected with the output end of Zero-cross comparator circuit 354, the other end and the 6th resistance of the 3rd electric capacity C3
One end connection of R6, the other end of the 6th resistance R6 is connected with one end of the 8th resistance R8, the other end of the 8th resistance R8 with it is many
The current signal collection terminal connection of function ammeter.One end of 7th resistance R7 is connected to the 3rd electric capacity C3's and the 6th resistance R6
Common node, the other end ground connection of the 7th resistance R7.4th electric capacity C4 one end is connected to the 6th resistance R6's and the 8th resistance R8
Common node, the other end ground connection of the 4th electric capacity C4.
Electric power monitoring system system according to the present embodiment employs layered distribution type structure, the collection of data, transmission and
Management is realized by live wall, Internet and monitoring management layer respectively.Wherein, Internet is the tie that system is constituted,
The real time information completed between monitoring management layer and live wall is exchanged, and completes the access of smart machine, realizes communication physics
The access and conversion of medium and stipulations.
Above description is with reference to further illustrating that specific embodiment and accompanying drawing are done to the utility model.But, this
Utility model obviously can be implemented in various other methods described different from this, those skilled in the art can without prejudice to
Promoted according to actually used situation in the case of the utility model content, deduced, therefore, the content of above-mentioned specific embodiment
The protection domain of the utility model determination should not be limited.
Claims (8)
1. electric power monitoring system, it is characterised in that including monitoring management layer, Internet and live wall；
Monitoring management layer includes monitoring host computer, UPS uninterrupted power sources and warning device, the UPS uninterrupted power sources it is defeated
Go out end to be connected with the power input of the monitoring host computer, the first signal output part and the warning device of the monitoring host computer
Input connection；
The Internet includes interchanger and Duo Tai communication managers, and the interchanger is logical with described monitoring host computer by netting twine
Letter connection, and communicated to connect with many communication managers respectively by optical fiber；
The live wall include respectively with the one-to-one multigroup site measuring and control equipment group of many communication managers, institute
Stating multigroup site measuring and control equipment group includes some groups of the first measuring and controlling equipment groups and some groups of the second measuring and controlling equipment groups；Every group first is surveyed
Control equipment group includes at least one multifunction electric meter, and the communication of every group of at least multifunction electric meter of the first measuring and controlling equipment group connects
Mouth is connected by the communications cable with corresponding communication manager；Described every group the second measuring and controlling equipment group includes work(at least more than one
Can ammeter and at least one comprehensive relay protection device, every group of at least one multifunction electric meter of the second measuring and controlling equipment group it is logical
Communication interface and at least one communication interface of comprehensive relay protection device are connected by communication cable with corresponding communication manager
Connect.
2. electric power monitoring system according to claim 1, it is characterised in that every group of first measuring and controlling equipment group and every group
Two measuring and controlling equipment groups include the quantity identical current measuring device with multifunction electric meter；The output of each current measuring device
Hold and connected with the current signal collection terminal of corresponding multifunction electric meter；
Each current measuring device includes current transformer and current-voltage conversion circuit；
The current-voltage conversion circuit include be sequentially connected filter circuit, voltage follower circuit, RLC antiresonant circuits and
Zero-cross comparator circuit；Wherein, the input of the filter circuit is connected with the output end of the current transformer, the zero passage ratio
It is connected with the current signal collection terminal of the multifunction electric meter compared with the output end of circuit.
3. electric power monitoring system according to claim 2, it is characterised in that the current-voltage conversion circuit also includes stagnant
Loop circuit, the input of the stagnant loop circuit is connected with the output end of the Zero-cross comparator circuit, the output of the stagnant loop circuit
Hold and be connected with the current signal collection terminal of the multifunction electric meter.
4. the electric power monitoring system according to Claims 2 or 3, it is characterised in that the filter circuit include first resistor,
Second resistance, the first electric capacity and the second electric capacity；One end of the first resistor is connected with the output end of the current transformer, institute
The other end for stating first resistor is connected with one end of first electric capacity, the other end ground connection of the first electric capacity；The second resistance
One end be connected to the common node of first resistor and the first electric capacity, one end of the other end of second resistance and the second electric capacity connects
Connect, the other end ground connection of the second electric capacity.
5. electric power monitoring system according to claim 3, it is characterised in that the Zero-cross comparator circuit include voltage ratio compared with
Device, the 4th resistance and the 5th resistance；The positive terminal of the voltage comparator is connected with one end of the 4th resistance, the 4th resistance it is another
One end is grounded；The end of oppisite phase of the voltage comparator is connected with the output end of the RLC antiresonant circuits；The voltage ratio compared with
The output end of device is connected with the input of the stagnant loop circuit；The two ends of the 5th resistance are connected to voltage comparator
The output end of end of oppisite phase and voltage comparator.
6. electric power monitoring system according to claim 3, it is characterised in that the stagnant loop circuit includes the 6th resistance, the
Seven resistance, the 8th resistance, the 3rd electric capacity and the 4th electric capacity；One end of 3rd electric capacity and the output of the Zero-cross comparator circuit
End connection, the other end of the 3rd electric capacity be connected with one end of the 6th resistance, the other end of the 6th resistance and the described 8th electric
One end connection of resistance, the other end of the 8th resistance is connected with the current signal collection terminal of the multifunction electric meter；Described 7th
One end of resistance is connected to the common node of the 3rd electric capacity and the 6th resistance, the other end ground connection of the 7th resistance；4th electricity
Hold the common node that one end is connected to the 6th resistance and the 8th resistance, the other end ground connection of the 4th electric capacity.
7. electric power monitoring system according to claim 1, it is characterised in that the warning device is alarm sound.
8. electric power monitoring system according to claim 1, it is characterised in that the electric power monitoring system also includes printing
Machine, the secondary signal output end of the monitoring host computer is connected with the printer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621402253.2U CN206250852U (en) | 2016-12-20 | 2016-12-20 | Electric power monitoring system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621402253.2U CN206250852U (en) | 2016-12-20 | 2016-12-20 | Electric power monitoring system |
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| Publication Number | Publication Date |
|---|---|
| CN206250852U true CN206250852U (en) | 2017-06-13 |
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ID=59007917
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621402253.2U Active CN206250852U (en) | 2016-12-20 | 2016-12-20 | Electric power monitoring system |
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| Country | Link |
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| CN (1) | CN206250852U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108155633A (en) * | 2017-12-29 | 2018-06-12 | 安徽罗伯特科技股份有限公司 | Arc light protection system |
-
2016
- 2016-12-20 CN CN201621402253.2U patent/CN206250852U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108155633A (en) * | 2017-12-29 | 2018-06-12 | 安徽罗伯特科技股份有限公司 | Arc light protection system |
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