CN104578058A - Five-element load dynamic capacity increasing and on-line monitoring system for power transmission line - Google Patents
Five-element load dynamic capacity increasing and on-line monitoring system for power transmission line Download PDFInfo
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- CN104578058A CN104578058A CN201510028987.2A CN201510028987A CN104578058A CN 104578058 A CN104578058 A CN 104578058A CN 201510028987 A CN201510028987 A CN 201510028987A CN 104578058 A CN104578058 A CN 104578058A
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- 230000005540 biological transmission Effects 0.000 title claims abstract description 71
- 238000012544 monitoring process Methods 0.000 title claims abstract description 47
- 238000005259 measurement Methods 0.000 claims abstract description 19
- 238000000034 method Methods 0.000 claims abstract description 8
- 238000004364 calculation method Methods 0.000 claims abstract description 7
- 238000009529 body temperature measurement Methods 0.000 claims description 16
- 239000004020 conductor Substances 0.000 claims description 15
- BASFCYQUMIYNBI-UHFFFAOYSA-N platinum Chemical compound [Pt] BASFCYQUMIYNBI-UHFFFAOYSA-N 0.000 claims description 8
- 238000005286 illumination Methods 0.000 claims description 7
- 230000006698 induction Effects 0.000 claims description 5
- 230000007812 deficiency Effects 0.000 claims description 4
- 229910052697 platinum Inorganic materials 0.000 claims description 4
- 238000012806 monitoring device Methods 0.000 abstract description 3
- 238000004891 communication Methods 0.000 description 3
- 230000007774 longterm Effects 0.000 description 3
- 230000033228 biological regulation Effects 0.000 description 2
- 238000011161 development Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000010205 computational analysis Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- 230000007257 malfunction Effects 0.000 description 1
- 238000013178 mathematical model Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 230000000087 stabilizing effect Effects 0.000 description 1
Classifications
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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
- H02J3/00—Circuit arrangements for ac mains or ac distribution networks
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- H02J13/0075—
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01D—MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
- G01D21/00—Measuring or testing not otherwise provided for
- G01D21/02—Measuring two or more variables by means not covered by a single other subclass
-
- 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
- H02J3/00—Circuit arrangements for ac mains or ac distribution networks
- H02J3/003—Load forecast, e.g. methods or systems for forecasting future load demand
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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
- 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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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Remote Monitoring And Control Of Power-Distribution Networks (AREA)
Abstract
The invention discloses a five-element load dynamic capacity increasing and on-line monitoring system for a power transmission line. A five-in-one state monitoring device for the power transmission line monitors and collects state data, used for dynamic capacity increasing calculation, of a wire, the corresponding collected parameters are input into a core calculation module for capacity increasing calculation, capacity increasing data obtained through calculation are sent to a system main station in a GPRS mode, the system main station determines the current thermal stability limit of the line according to the capacity increasing data and provides a certain number of direct measurement data for increasing transmission capacity in real time, higher operability and safety of real-time capacity increasing operation of the power transmission line are achieved by applying a dynamic capacity increasing mathematic model and utilizing the method of determining safety time under current limit and determining safety current under time limit, and the transmission potentials of the existing power transmission line are tapped by dynamically increasing the thermal stability limit of the wire to guide operation. By means of the system, the state information of the power transmission line can be effectively acquired in real time for a long time for dynamic capacity increasing of the line, and stable and reliable operation of devices can be guaranteed.
Description
Technical field
The invention belongs to POWER SYSTEM STATE monitoring and power transmission line dynamic capacity increase technical field, be specifically related to a kind of transmission line five elements load dynamic compatibilization and on-line monitoring system.
Background technology
Along with the development of Chinese national economy and the progress of society, all trades and professions are more and more stronger to the dependence of electricity, and electric load, in rapid growth, also proposes requirements at the higher level to transmission line safe and reliable operation.Under peak of power consumption and part transmission line malfunction situation, how to improve power delivery capabilities is our problem in the urgent need to address at present.
The essence of dynamic compatibilization technology is on transmission line, be arranged on line states monitoring device, Lead status (conductor temperature, tension force, sag, electric current etc.) and meteorological condition (ambient temperature, sunshine, wind speed etc.) are monitored, under the prerequisite not breaking through current art regulations stipulate (conductor temperature limit 70 DEG C), based on the permission ampacity that relevant calculated with mathematical model wire is maximum, how effectively long-term the state information of acquisition transmission line, become a key factor of dynamic line increase-volume.
Summary of the invention
The object of the invention is the deficiency existed to overcome prior art, a kind of state information of acquisition transmission line that can be effectively long-term being provided, carrying out dynamic line increase-volume, the transmission line five elements load dynamic compatibilization of the reliable and stable operation of assurance device and on-line monitoring system.
The present invention is achieved by the following technical solutions: a kind of transmission line five elements load dynamic compatibilization and on-line monitoring system, comprise transmission line five in one state monitoring apparatus and system main website, transmission line five in one state monitoring apparatus is arranged on transmission line, every operational factor of transmission line is monitored, gather the conductor temperature being used for circuit dynamic compatibilization and calculating, ambient temperature, intensity of sunshine, current in wire, these five kinds of parameters of wind speed, the relevant parameter collected input core calculations module is carried out increase-volume calculating, calculate increase-volume data and be sent to system main website by GPRS mode, system main website comprises front end processor and data server, front end processor to the collection of five in one state monitoring apparatus and the increase-volume data calculated receive and store, then the data after process are sent to background data base storage, the increase-volume data that data server utilizes five in one state monitoring apparatus to calculate, determine the thermally-stabilised limit that circuit is current, for improving the direct measurement data that transmission capacity provides quantitative in real time, and pass through the application of dynamic compatibilization Mathematical Modeling, use " safety time under electric current limit ", the method of " safe current under time limit ", the real-time increase-volume of transmission line is run and has more operability and fail safe, operation is instructed by dynamically improving the thermally-stabilised limit of wire, excavate the delivery potential of existing transmission line, alleviate the deficiency of grid transmission passage conveying capacity.
Described transmission line five in one state monitoring apparatus comprises embedded microprocessor, measuring wind speed unit, intensity of illumination measurement module, ambient temperature measurement module, conductor temperature measurement module and current in wire measurement module, measuring wind speed unit, intensity of illumination measurement module, ambient temperature measurement module, conductor temperature measurement module are connected with embedded microprocessor respectively by A/D converter, and current in wire measurement module is connected with embedded microprocessor by current transducer.
Described transmission line five in one state monitoring apparatus also comprises induction power taking power module, and the five in one state monitoring apparatus be arranged on transmission line obtains working power by induction way to take power.
Described transmission line five in one state monitoring apparatus also comprises gsm module block and clock module.
Described ambient temperature measurement module, described conductor temperature measurement module are formed by three-wire system platinum resistance.
Described transmission line five in one state monitoring apparatus also comprises for accessing the ZigBee module that other have the data acquisition unit of ZigBee interface.
The invention has the beneficial effects as follows: the state information of the Real-time Obtaining transmission line that the present invention can be effectively long-term, carry out dynamic line increase-volume, the reliable and stable operation of assurance device.
Accompanying drawing explanation
Fig. 1 is the fundamental diagram of total system of the present invention;
Fig. 2 is the structured flowchart of transmission line five in one state monitoring apparatus.
Embodiment
As shown in Figure 1, a kind of transmission line five elements load dynamic compatibilization and on-line monitoring system, comprise transmission line five in one state monitoring apparatus and system main website, transmission line five in one state monitoring apparatus is arranged on transmission line, every operational factor of transmission line is monitored, the line state information obtained and environmental parameter (conductor temperature, ambient temperature, intensity of sunshine, current in wire and these five kinds of parameters of wind speed), the relevant parameter collected input core calculations module is carried out increase-volume calculating, calculate increase-volume data and be sent to system main website by GPRS mode, adopt that on-line monitoring combines with model computational analysis, theoretical model and operating experience combines, field monitoring combines with forecast assessment, impact development combines with forecasting and warning pattern, the high tower transmission line increase-volume state in various weather environment can be carried out real-time on-line monitoring and is predicted timely, system main website comprises front end processor and data server, front end processor to the collection of five in one state monitoring apparatus and the increase-volume data calculated receive and store, then the data after process are sent to background data base storage, the increase-volume data that data server utilizes five in one state monitoring apparatus to calculate, determine the thermally-stabilised limit that circuit is current, for improving the direct measurement data that transmission capacity provides quantitative in real time, and pass through the application of dynamic compatibilization Mathematical Modeling, use " safety time under electric current limit ", the method of " safe current under time limit ", the real-time increase-volume of transmission line is run and has more operability and fail safe, operation is instructed by dynamically improving the thermally-stabilised limit of wire, excavate the delivery potential of existing transmission line, alleviate the problem of grid transmission passage conveying capacity deficiency to a certain extent.
As shown in Figure 2, transmission line five in one state monitoring apparatus comprises embedded microprocessor, measuring wind speed unit, intensity of illumination measurement module, ambient temperature measurement module, conductor temperature measurement module and current in wire measurement module, measuring wind speed unit, intensity of illumination measurement module, ambient temperature measurement module, conductor temperature measurement module are connected with embedded microprocessor respectively by A/D converter, and current in wire measurement module is connected with embedded microprocessor by current transducer.Transmission line five in one state monitoring apparatus also comprises induction power taking power module, transmission line five in one state monitoring apparatus is directly installed on wire, without the need to extra power supply, directly extract electric energy from transmission line, on wire, suit is got and can be induced alternating voltage by coil, then the reliable DC power supply of stable output after over commutation, filtering, voltage stabilizing, realizes isolation power supply.
Use three-wire system platinum resistance (PT100) measures ambient temperature and conductor temperature, the measure error that cable resistance causes can be eliminated to greatest extent, improve the certainty of measurement of temperature.Platinum resistance is fitted tightly by fixture and wire, and conductor temperature signal is converted to resistance signal, changes digital signal into through the conversion of modulate circuit and the process of embedded microprocessor.Being measured the size of solar radiation and wind speed by intensity of illumination measurement module, measuring wind speed unit, is the calculating parameter that capacity increasing system provides another important.The accurate current value that current in wire measurement module obtains circuit calculates for increase-volume.
According to the regulation of " power transmission state monitoring device current techique specification ", the communication between transmission line five in one state monitoring apparatus and front end processor uses I1 communication protocol, and the transport layer protocol of data communication is UDP.Transmission line five in one state monitoring apparatus has ZigBee module, can access the data acquisition unit that other have ZigBee interface.Transmission line five in one state monitoring apparatus also comprises gsm module block and clock module.
Finally should be noted that; above content is only in order to illustrate technical scheme of the present invention; but not limiting the scope of the invention; the simple modification that those of ordinary skill in the art carries out technical scheme of the present invention or equivalently to replace, does not all depart from essence and the scope of technical solution of the present invention.
Claims (6)
1. a transmission line five elements load dynamic compatibilization and on-line monitoring system, it is characterized in that: described transmission line five elements load dynamic compatibilization and on-line monitoring system comprise transmission line five in one state monitoring apparatus and system main website, transmission line five in one state monitoring apparatus is arranged on transmission line, every operational factor of transmission line is monitored, gather the conductor temperature being used for circuit dynamic compatibilization and calculating, ambient temperature, intensity of sunshine, current in wire, these five kinds of parameters of wind speed, the relevant parameter collected input core calculations module is carried out increase-volume calculating, calculate increase-volume data and be sent to system main website by GPRS mode, system main website comprises front end processor and data server, front end processor to the collection of five in one state monitoring apparatus and the increase-volume data calculated receive and store, then the data after process are sent to background data base storage, the increase-volume data that data server utilizes five in one state monitoring apparatus to calculate, determine the thermally-stabilised limit that circuit is current, for improving the direct measurement data that transmission capacity provides quantitative in real time, and pass through the application of dynamic compatibilization Mathematical Modeling, use " safety time under electric current limit ", the method of " safe current under time limit ", the real-time increase-volume of transmission line is run and has more operability and fail safe, operation is instructed by dynamically improving the thermally-stabilised limit of wire, excavate the delivery potential of existing transmission line, alleviate the deficiency of grid transmission passage conveying capacity.
2. transmission line five elements load dynamic compatibilization according to claim 1 and on-line monitoring system, it is characterized in that: described transmission line five in one state monitoring apparatus comprises embedded microprocessor, measuring wind speed unit, intensity of illumination measurement module, ambient temperature measurement module, conductor temperature measurement module and current in wire measurement module, measuring wind speed unit, intensity of illumination measurement module, ambient temperature measurement module, conductor temperature measurement module is connected with embedded microprocessor respectively by A/D converter, current in wire measurement module is connected with embedded microprocessor by current transducer.
3. transmission line five elements load dynamic compatibilization according to claim 2 and on-line monitoring system, it is characterized in that: described transmission line five in one state monitoring apparatus also comprises induction power taking power module, the five in one state monitoring apparatus be arranged on transmission line obtains working power by induction way to take power.
4. transmission line five elements load dynamic compatibilization according to claim 2 and on-line monitoring system, is characterized in that: described transmission line five in one state monitoring apparatus also comprises gsm module block and clock module.
5. transmission line five elements load dynamic compatibilization according to claim 2 and on-line monitoring system, is characterized in that: described ambient temperature measurement module, described conductor temperature measurement module are formed by three-wire system platinum resistance.
6. transmission line five elements load dynamic compatibilization according to claim 2 and on-line monitoring system, is characterized in that: described transmission line five in one state monitoring apparatus also comprises for accessing the ZigBee module that other have the data acquisition unit of ZigBee interface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510028987.2A CN104578058A (en) | 2015-01-21 | 2015-01-21 | Five-element load dynamic capacity increasing and on-line monitoring system for power transmission line |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201510028987.2A CN104578058A (en) | 2015-01-21 | 2015-01-21 | Five-element load dynamic capacity increasing and on-line monitoring system for power transmission line |
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| CN104578058A true CN104578058A (en) | 2015-04-29 |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104897304A (en) * | 2015-06-18 | 2015-09-09 | 中国电力科学研究院 | Line temperature identification method for dynamic capacity expansion of power transmission line |
| CN105738745A (en) * | 2016-04-25 | 2016-07-06 | 广东电网有限责任公司佛山供电局 | Power transmission line state monitoring system and monitoring method thereof |
| CN105956931A (en) * | 2016-04-29 | 2016-09-21 | 国网新疆电力公司乌鲁木齐供电公司 | Power distribution line dynamic capacity increasing auxiliary decision making method and system |
| CN110567520A (en) * | 2019-08-30 | 2019-12-13 | 广东电网有限责任公司江门供电局 | dynamic capacity expansion system and method based on voltage and current measurement of power transmission line |
| CN111030098A (en) * | 2019-12-13 | 2020-04-17 | 贵州电网有限责任公司 | Method for dynamically improving heat stability limit of power transmission section based on multivariate parameter constraint |
| CN112001524A (en) * | 2020-07-17 | 2020-11-27 | 贵州电网有限责任公司 | Method for improving overhead line transmission capacity by fusing microclimate real-time monitoring information |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104897304A (en) * | 2015-06-18 | 2015-09-09 | 中国电力科学研究院 | Line temperature identification method for dynamic capacity expansion of power transmission line |
| CN104897304B (en) * | 2015-06-18 | 2018-07-20 | 中国电力科学研究院 | A kind of line temperature discrimination method for power transmission line dynamic capacity increase |
| CN105738745A (en) * | 2016-04-25 | 2016-07-06 | 广东电网有限责任公司佛山供电局 | Power transmission line state monitoring system and monitoring method thereof |
| CN105738745B (en) * | 2016-04-25 | 2019-01-29 | 广东电网有限责任公司佛山供电局 | Power transmission state monitoring system and its monitoring method |
| CN105956931A (en) * | 2016-04-29 | 2016-09-21 | 国网新疆电力公司乌鲁木齐供电公司 | Power distribution line dynamic capacity increasing auxiliary decision making method and system |
| CN110567520A (en) * | 2019-08-30 | 2019-12-13 | 广东电网有限责任公司江门供电局 | dynamic capacity expansion system and method based on voltage and current measurement of power transmission line |
| CN111030098A (en) * | 2019-12-13 | 2020-04-17 | 贵州电网有限责任公司 | Method for dynamically improving heat stability limit of power transmission section based on multivariate parameter constraint |
| CN112001524A (en) * | 2020-07-17 | 2020-11-27 | 贵州电网有限责任公司 | Method for improving overhead line transmission capacity by fusing microclimate real-time monitoring information |
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Application publication date: 20150429 |