CN105790435A - Novel power network measurement and control system employing power carrier technology - Google Patents
Novel power network measurement and control system employing power carrier technology Download PDFInfo
- Publication number
- CN105790435A CN105790435A CN201610125632.XA CN201610125632A CN105790435A CN 105790435 A CN105790435 A CN 105790435A CN 201610125632 A CN201610125632 A CN 201610125632A CN 105790435 A CN105790435 A CN 105790435A
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- Prior art keywords
- measuring
- novel power
- electric capacity
- transformator
- power grid
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- 238000005516 engineering process Methods 0.000 title claims abstract description 24
- 238000005259 measurement Methods 0.000 title abstract 7
- 239000013307 optical fiber Substances 0.000 claims abstract description 9
- 230000002146 bilateral effect Effects 0.000 claims description 10
- 239000004020 conductor Substances 0.000 claims description 5
- 239000000835 fiber Substances 0.000 claims description 5
- 230000008054 signal transmission Effects 0.000 abstract description 12
- 238000004891 communication Methods 0.000 abstract description 3
- 230000002457 bidirectional effect Effects 0.000 abstract 1
- 239000003990 capacitor Substances 0.000 abstract 1
- 230000005540 biological transmission Effects 0.000 description 5
- 230000000694 effects Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 230000010355 oscillation Effects 0.000 description 1
- 230000009897 systematic effect Effects 0.000 description 1
- 230000001052 transient effect Effects 0.000 description 1
Classifications
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- H02J13/0089—
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J13/00—Circuit arrangements for providing remote indication of network conditions, e.g. an instantaneous record of the open or closed condition of each circuitbreaker in the network; Circuit arrangements for providing remote control of switching means in a power distribution network, e.g. switching in and out of current consumers by using a pulse code signal carried by the network
- H02J13/00006—Circuit arrangements for providing remote indication of network conditions, e.g. an instantaneous record of the open or closed condition of each circuitbreaker in the network; Circuit arrangements for providing remote control of switching means in a power distribution network, e.g. switching in and out of current consumers by using a pulse code signal carried by the network characterised by information or instructions transport means between the monitoring, controlling or managing units and monitored, controlled or operated power network element or electrical equipment
- H02J13/00007—Circuit arrangements for providing remote indication of network conditions, e.g. an instantaneous record of the open or closed condition of each circuitbreaker in the network; Circuit arrangements for providing remote control of switching means in a power distribution network, e.g. switching in and out of current consumers by using a pulse code signal carried by the network characterised by information or instructions transport means between the monitoring, controlling or managing units and monitored, controlled or operated power network element or electrical equipment using the power network as support for the transmission
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B3/00—Line transmission systems
- H04B3/54—Systems for transmission via power distribution lines
-
- 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
- Y04S40/121—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 the power network as support for the transmission
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Cable Transmission Systems, Equalization Of Radio And Reduction Of Echo (AREA)
- Remote Monitoring And Control Of Power-Distribution Networks (AREA)
- Selective Calling Equipment (AREA)
Abstract
The invention relates to a novel power network measurement and control system employing a power carrier technology. The novel power network measurement and control system comprises a central server, an electronic carrier generator and a plurality of power network measurement and control instruments, wherein an optical fiber is connected between the central server and the electronic carrier generator; and the electronic carrier generator and the power network measurement and control instruments are electrically connected with connection lines. According to the novel power network measurement and control system employing the power carrier technology, signal transmission of the system in a power carrier manner is achieved through the electronic carrier generator; the wiring cost is reduced; meanwhile, a carrier signal can be coupled through a transformer; and a communication circuit can also be isolated with a power-frequency heavy AC, so that the reliability of the system is improved. Moreover, an interference signal can be effectively filtered through a resonance network comprising a third capacitor and an inductor; the signal transmission stability is improved; meanwhile, the novel power network measurement and control system plays a surge protection role through a bidirectional diode; the back circuit is effectively prevented from being broken down by a high voltage; and the circuit reliability is improved.
Description
Technical field
The present invention relates to a kind of novel power grid measuring-controlling system adopting PLC technology.
Background technology
Along with the development of modern power electronics technology, people also get more and more for the utilization of Power Electronic Technique, no matter are that in work or life, its help giving us is also evident from.
In modern power network TT&C system, need the parameters of electric power in this region is carried out monitor in real time, but owing to region is bigger, it is accomplished by being carried out data transmission by grid line, which adds the cost of network layout, and too much grid line is reduced for the interference performance of signal, reduce the reliability of TT&C system.
In prior art, for carrier signal in emission process, owing to lacking buffer action, cause that the reliability of carrier signal transmission reduces, and owing to transmission signal is lacked filtration, stability and the reliability of carrier signal transmission also just reduce.
Summary of the invention
The technical problem to be solved in the present invention is: in order to overcome, prior art wiring cost is high, the deficiency of carrier transit signal reliability and stability difference, it is provided that a kind of reliability, stability are high and have the novel power grid measuring-controlling system adopting PLC technology of multiple protection.
The technical solution adopted for the present invention to solve the technical problems is: a kind of novel power grid measuring-controlling system adopting PLC technology, including central server, electrical carrier generator and some electric network measuring and controlling instrument, described central server and electrical carrier generator are electrically connected with optical fiber, and described electrical carrier generator and electric network measuring and controlling instrument are electrically connected with connecting line；
nullDescribed electrical carrier generator is provided with carrier wave transmitter module，Described electric network measuring and controlling instrument is provided with carrier receiving module，Described carrier wave transmitter module is connected with carrier receiving module，Described carrier wave transmitter module includes carrier wave radiating circuit，Described carrier wave radiating circuit includes resistance、Audion、Transformator、Inductance、Bilateral diode、First electric capacity、Second electric capacity and the 3rd electric capacity，The grounded emitter of described audion，The base stage of described audion is connected with resistance，The colelctor electrode of described audion is connected with one end of the input circuit of transformator，The colelctor electrode of described audion is connected with the other end of the input circuit of transformator by the first electric capacity，Described second electric capacity and the first Capacitance parallel connection，The external 5V DC voltage power supply of central point of the input circuit of described transformator，Inductance is passed through in one end of the output loop of described transformator、The series circuit of the 3rd electric capacity and bilateral diode composition is connected with the other end of the output loop of transformator.
As preferably, utilizing the feature that the transmission of single-mode fiber communication signal is stable, improve the reliability of system signal transmission, described optical fiber is single-mode fiber.
As preferably, utilizing shielded conductor to the interference shielded feature of signal, improve the capacity of resisting disturbance of system, described connecting line is shielded conductor.
As preferably, in order to improve the practicality of electric network measuring and controlling instrument, display interface, control button, signal terminal and the power supply terminal that described electric network measuring and controlling instrument includes housing, is arranged on housing.
As preferably, in order to improve the intellectuality of electric network measuring and controlling instrument, described electric network measuring and controlling instrument is provided with central control unit, the chip model that described central control unit adopts is GD32F103RBT6, and described display interface, control button, signal terminal and power supply terminal all electrically connect with central control unit.
As preferably, in order to improve the practicality of electric network measuring and controlling instrument further, described display interface is LCDs.
As preferably, utilizing the feature that touch key is highly sensitive, improving the practicality of electric network measuring and controlling instrument further, described control button is touch key.
As preferably, described audion is NPN audion.
The invention has the beneficial effects as follows, the novel power grid measuring-controlling system of this employing PLC technology passes through electrical carrier generator, it is achieved that system carries out signal transmission by the mode of power carrier, reduces wiring cost；Carrier signal can not only be coupled by transformator simultaneously; telecommunication circuit and industrial frequency AC forceful electric power can also be isolated; improve the reliability of system; moreover, interference signal is effectively filtered by the resonant network consisted of the 3rd electric capacity and inductance, improves the stability of signal transmission; pass through bilateral diode simultaneously; play the effect of surge protection, efficiently avoid circuit below and be broken down by high-voltage, improve the reliability of circuit.
Accompanying drawing explanation
Below in conjunction with drawings and Examples, the present invention is further described.
Fig. 1 is the structural representation of the novel power grid measuring-controlling system adopting PLC technology of the present invention；
Fig. 2 is the structural representation of the electric network measuring and controlling instrument of the novel power grid measuring-controlling system adopting PLC technology of the present invention；
Fig. 3 is the circuit theory diagrams of the carrier wave radiating circuit of the novel power grid measuring-controlling system adopting PLC technology of the present invention；
In figure: 1. central server, 2. electrical carrier generator, 3. optical fiber, 4. connecting line, 5. electric network measuring and controlling instrument, 6. display interface, 7. control button, 8. signal terminal, 9. power supply terminal, 10. housing, R1. resistance, Q1. audion, T1. transformator, L1. inductance, TVS. bilateral diode, C1. the first electric capacity, C2. the second electric capacity, C3. the 3rd electric capacity.
Detailed description of the invention
In conjunction with the accompanying drawings, the present invention is further detailed explanation.These accompanying drawings are the schematic diagram of simplification, and the basic structure of the present invention is only described in a schematic way, and therefore it only shows the composition relevant with the present invention.
As shown in Figure 1-Figure 3, a kind of novel power grid measuring-controlling system adopting PLC technology, including central server 1, electrical carrier generator 2 and some electric network measuring and controlling instrument 5, described central server 1 and electrical carrier generator 2 are electrically connected with optical fiber 3, and described electrical carrier generator 2 is electrically connected with connecting line 4 with electric network measuring and controlling instrument 5；
nullDescribed electrical carrier generator 2 is provided with carrier wave transmitter module，Described electric network measuring and controlling instrument 5 is provided with carrier receiving module，Described carrier wave transmitter module is connected with carrier receiving module，Described carrier wave transmitter module includes carrier wave radiating circuit，Described carrier wave radiating circuit includes resistance R1、Audion Q1、Transformator T1、Inductance L1、Bilateral diode TVS、First electric capacity C1、Second electric capacity C2 and the three electric capacity C3，The grounded emitter of described audion Q1，The base stage of described audion Q1 is connected with resistance R1，The colelctor electrode of described audion Q1 is connected with one end of the input circuit of transformator T1，The colelctor electrode of described audion Q1 is connected with the other end of the input circuit of transformator T1 by the first electric capacity C1，Described second electric capacity C2 and the first electric capacity C1 is in parallel，The external 5V DC voltage power supply of central point of the input circuit of described transformator T1，Inductance L1 is passed through in one end of the output loop of described transformator T1、The series circuit of the 3rd electric capacity C3 and bilateral diode TVS composition is connected with the other end of the output loop of transformator T1.
As preferably, utilizing the feature that the transmission of single-mode fiber communication signal is stable, improve the reliability of system signal transmission, described optical fiber 3 is single-mode fiber.
As preferably, utilizing shielded conductor to the interference shielded feature of signal, improve the capacity of resisting disturbance of system, described connecting line 4 is shielded conductor.
As preferably, in order to improve the practicality of electric network measuring and controlling instrument 5, described electric network measuring and controlling instrument 5 includes housing 10, arranges display interface 6 on the housing 10, controls button 7, signal terminal 8 and power supply terminal 9.
As preferably, in order to improve the intellectuality of electric network measuring and controlling instrument 5, described electric network measuring and controlling instrument 5 is provided with central control unit, the chip model that described central control unit adopts is GD32F103RBT6, and described display interface 6, control button 7, signal terminal 8 and power supply terminal 9 all electrically connect with central control unit.
As preferably, in order to improve the practicality of electric network measuring and controlling instrument 5 further, described display interface 6 is LCDs.
As preferably, utilizing the feature that touch key is highly sensitive, improving the practicality of electric network measuring and controlling instrument 5 further, described control button 7 is touch key.
As preferably, described audion Q1 is NPN audion.
The novel power grid measuring-controlling system of this employing PLC technology: the grid power parameter in this region is measured in real time by each electric network measuring and controlling instrument 5, signal transmission is carried out by connecting line 4 and electrical carrier generator 2 subsequently by the form of power carrier, central server 1 is transferred data to again through optical fiber 3, it is achieved thereby that the monitor in real time of the grid power parameter to this region.
In order to ensure the reliability and stability of this systematic electricity carrier-wave transmission, electrical carrier generator 2 is provided with carrier wave transmitter module, carrier signal can not only be coupled by the transformator T1 of the carrier wave radiating circuit in carrier wave transmitter module, telecommunication circuit and industrial frequency AC forceful electric power can also be isolated, improve the reliability of system, and the external 5V DC voltage power supply of the central point of transformator T1, to reduce owing to the access of signal makes the first electric capacity C1, second electric capacity C2 reduces even failure of oscillation with the Q-value of the series resonant network that transformator T1 input forms, further increase the reliability of system；Circuit adds bilateral diode TVS, is transient supression diode, play the effect of surge protection, efficiently avoid circuit below and be broken down by high-voltage, improve the reliability of circuit.And, by the 3rd electric capacity C3 and the inductance L1 resonant network formed, interference signal is effectively filtered, improve the stability of signal transmission.
Compared with prior art, the novel power grid measuring-controlling system of this employing PLC technology passes through electrical carrier generator 2, it is achieved that system carries out signal transmission by the mode of power carrier, reduces wiring cost；Carrier signal can not only be coupled by transformator T1 simultaneously; telecommunication circuit and industrial frequency AC forceful electric power can also be isolated; improve the reliability of system; moreover, by the 3rd electric capacity C3 and the inductance L1 resonant network formed, interference signal is effectively filtered, improve the stability of signal transmission; simultaneously by bilateral diode TVS; play the effect of surge protection, efficiently avoid circuit below and be broken down by high-voltage, improve the reliability of circuit.
With the above-mentioned desirable embodiment according to the present invention for enlightenment, by above-mentioned description, relevant staff in the scope not necessarily departing from this invention technological thought, can carry out various change and amendment completely.The technical scope of this invention is not limited to the content in description, it is necessary to determine its technical scope according to right.
Claims (8)
1. the novel power grid measuring-controlling system adopting PLC technology, it is characterized in that, including central server (1), electrical carrier generator (2) and some electric network measuring and controlling instrument (5), described central server (1) and electrical carrier generator (2) are electrically connected with optical fiber (3), and described electrical carrier generator (2) and electric network measuring and controlling instrument (5) are electrically connected with connecting line (4)；
nullDescribed electrical carrier generator (2) is provided with carrier wave transmitter module，Described electric network measuring and controlling instrument (5) is provided with carrier receiving module，Described carrier wave transmitter module is connected with carrier receiving module，Described carrier wave transmitter module includes carrier wave radiating circuit，Described carrier wave radiating circuit includes resistance (R1)、Audion (Q1)、Transformator (T1)、Inductance (L1)、Bilateral diode (TVS)、First electric capacity (C1)、Second electric capacity (C2) and the 3rd electric capacity (C3)，The grounded emitter of described audion (Q1)，The base stage of described audion (Q1) is connected with resistance (R1)，The colelctor electrode of described audion (Q1) is connected with one end of the input circuit of transformator (T1)，The colelctor electrode of described audion (Q1) is connected with the other end of the input circuit of transformator (T1) by the first electric capacity (C1)，Described second electric capacity (C2) is in parallel with the first electric capacity (C1)，The external 5V DC voltage power supply of central point of the input circuit of described transformator (T1)，Inductance (L1) is passed through in one end of the output loop of described transformator (T1)、The series circuit that 3rd electric capacity (C3) and bilateral diode (TVS) form is connected with the other end of the output loop of transformator (T1).
2. the novel power grid measuring-controlling system adopting PLC technology as claimed in claim 1, it is characterised in that described optical fiber (3) is single-mode fiber.
3. the novel power grid measuring-controlling system adopting PLC technology as claimed in claim 1, it is characterised in that described connecting line (4) is shielded conductor.
4. the novel power grid measuring-controlling system adopting PLC technology as claimed in claim 1, it is characterized in that, described electric network measuring and controlling instrument (5) includes housing (10), the display interface (6) that is arranged on housing (10), control button (7), signal terminal (8) and power supply terminal (9).
5. the novel power grid measuring-controlling system adopting PLC technology as claimed in claim 4, it is characterized in that, described electric network measuring and controlling instrument (5) is provided with central control unit, the chip model that described central control unit adopts is GD32F103RBT6, and described display interface (6), control button (7), signal terminal (8) and power supply terminal (9) all electrically connect with central control unit.
6. the novel power grid measuring-controlling system adopting PLC technology as claimed in claim 4, it is characterised in that described display interface (6) is LCDs.
7. the novel power grid measuring-controlling system adopting PLC technology as claimed in claim 4, it is characterised in that described control button (7) is touch key.
8. the novel power grid measuring-controlling system adopting PLC technology as claimed in claim 1, it is characterised in that described audion (Q1) is NPN audion.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610125632.XA CN105790435A (en) | 2016-03-05 | 2016-03-05 | Novel power network measurement and control system employing power carrier technology |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610125632.XA CN105790435A (en) | 2016-03-05 | 2016-03-05 | Novel power network measurement and control system employing power carrier technology |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105790435A true CN105790435A (en) | 2016-07-20 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610125632.XA Pending CN105790435A (en) | 2016-03-05 | 2016-03-05 | Novel power network measurement and control system employing power carrier technology |
Country Status (1)
| Country | Link |
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| CN (1) | CN105790435A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2017152312A1 (en) * | 2016-03-05 | 2017-09-14 | 马骏 | New type of power-grid measurement and control system using power carrier technology |
| CN109444599A (en) * | 2018-12-06 | 2019-03-08 | 郑州云海信息技术有限公司 | A kind of system and method for eliminating electrical fast transient (eft) interference |
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| CN102750813A (en) * | 2012-06-12 | 2012-10-24 | 上海市电力公司 | Power use information acquisition system |
| CN202712974U (en) * | 2012-06-12 | 2013-01-30 | 上海市电力公司 | Power utilization information acquisition system |
| US20140139014A1 (en) * | 2012-11-20 | 2014-05-22 | Thales | Power over data transmission |
| CN104502647A (en) * | 2014-11-23 | 2015-04-08 | 国家电网公司 | Remote meter reading automatic metering system for electric energy meter |
| CN204272113U (en) * | 2014-10-31 | 2015-04-15 | 北京普锐电子有限公司 | Low-voltage powerline carrier communication transmitting terminal frequency of carrier signal switches coupling circuit |
| CN105046930A (en) * | 2015-06-29 | 2015-11-11 | 赖玉春 | Remote automatic meter recording system |
-
2016
- 2016-03-05 CN CN201610125632.XA patent/CN105790435A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102750813A (en) * | 2012-06-12 | 2012-10-24 | 上海市电力公司 | Power use information acquisition system |
| CN202712974U (en) * | 2012-06-12 | 2013-01-30 | 上海市电力公司 | Power utilization information acquisition system |
| US20140139014A1 (en) * | 2012-11-20 | 2014-05-22 | Thales | Power over data transmission |
| CN204272113U (en) * | 2014-10-31 | 2015-04-15 | 北京普锐电子有限公司 | Low-voltage powerline carrier communication transmitting terminal frequency of carrier signal switches coupling circuit |
| CN104502647A (en) * | 2014-11-23 | 2015-04-08 | 国家电网公司 | Remote meter reading automatic metering system for electric energy meter |
| CN105046930A (en) * | 2015-06-29 | 2015-11-11 | 赖玉春 | Remote automatic meter recording system |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2017152312A1 (en) * | 2016-03-05 | 2017-09-14 | 马骏 | New type of power-grid measurement and control system using power carrier technology |
| CN109444599A (en) * | 2018-12-06 | 2019-03-08 | 郑州云海信息技术有限公司 | A kind of system and method for eliminating electrical fast transient (eft) interference |
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Application publication date: 20160720 |
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