CN109115278B - A kind of fine early warning system of GIS power grid based on cable sensor - Google Patents
A kind of fine early warning system of GIS power grid based on cable sensor Download PDFInfo
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Abstract
The invention belongs to electric power network fields, are related to a kind of fine early warning system of GIS power grid based on cable sensor.Including GIS server, GIS database module, weather warning module, base station control module, comprehensive pre-warning module, multiple base station modules and multiple cable sensor modules；Display is on its display screen after data in GIS database module are carried out integrated treatment by comprehensive pre-warning module.Can be with the ageing rate of on-line determination cable, while having no effect on the transmission of electricity of cable；The high-precision early warning for the cable of different aging conditions can be provided in conjunction with cable ageing rate.
Description
Technical field
The invention belongs to electric power network field, it is related to GIS power grid early warning system, more particularly to a kind of based on cable sensor
The fine early warning system of GIS power grid.
Background technique
In recent years, state's net electric power network power transmission and transforming equipment prevent and reduce natural disasters National Key Laboratory adhere to power grid security production drive
The research ideas of dynamic innovation, closely surrounds power grid and prevents and reduces natural disasters and conduct a research, and has carried out a large amount of novelties at the anti-icing aspect of power grid
Research work especially made breakthrough progress in hazard prediction warning aspect.Strong wind disaster is to influence electric power safety
One of principal element, strong wind are likely to result in the fracture of power transmission cable, directly affect transmission of electricity, and caused by be affected, restore
Time is longer.
When power transmission cable aging, its breaking tension is reduced, and cable aging can greatly improve the transmission of electricity wind of strong wind hazard weather
Danger, thus it is imperative for cable aging progress early warning.
Application number: 201520290157.2 schemes disclose a kind of cable fixer, and it is solid to disclose a kind of cable
Determine device, including fixed substrate, for the middle concave part of fixed substrate at cable fixing groove, the two sides of fixed substrate form fin institute
It states and is equipped with multiple through-holes in cable fixing groove, each through-hole is equipped with the buckle for engaging cable, and cable is fixed simple,
And there are gap between each cable, more cables will not twist together, prevent from interfering with each other, and are also prevented from cable aging and occur not
Full accident reduces the risk of cable aging, simultaneously although its disclosed structure can delay cable aging to a certain extent
It is not suitable for large-scale power transmission cable.
Application number: 201711316455.4 disclose transmission line galloping prediction technique based on inversion algorithm, system and
Storage medium, to be applied to the fining waved caused by the factors such as icing prediction.Computation model and correspondence are predicted according to waving
Input element slightly predict the Regional Distribution of Registered of transmission line galloping；It is to wave in thick prediction result according to power grid GIS information
Region in search for electric power line pole tower, and record the inverting information of searched out electric power line pole tower；According to inverting information
Line each section of associated shaft tower in transmission line of electricity both ends in space generates and waves the transmission line of electricity that index waits for secondary fining prediction；It is right
To each pixel on the transmission line of electricity of secondary fining prediction, carry out waving the two of index based on meteorological element Spatial Interpolation Method
Secondary fining prediction, and according to the preset corresponding relationship for waving index and color value, prediction result is intuitively shown.Its
Specific aim prediction cannot be carried out for cable aging, and it only discloses display prediction result, but with no specific disclosure of its calculating
With the process of early warning and display.
It is badly in need of a kind of electric power GIS early warning that fine early warning can be carried out for strong wind hazard weather and cable ageing rate at present
System.
Summary of the invention
The purpose of the present invention is what is be achieved through the following technical solutions.
For above content, to solve disadvantages described above, it is fine that the present invention provides a kind of GIS power grid based on cable sensor
Early warning system, it is characterised in that including GIS server, GIS database module, weather warning module, base station control module, synthesis
Warning module, multiple base station modules and multiple cable sensor modules；GIS database module, weather warning module, base station control
Molding block, comprehensive pre-warning module respectively with GIS server data connection；GIS server collects weather warning module and base station control
The data of molding block, and be stored in GIS database module；Comprehensive pre-warning module carries out the data in GIS database module
It is shown in after integrated treatment to show on screen.
Store the map datum comprising altitude information in the GIS database module, data format be (Lng1,
Lat1, H), wherein Lng1 is longitude, and Lat1 is latitude, and H is height above sea level.
The weather warning module is wind-force warning module, and the wind-force in 24-72 hours future is obtained from meteorological data center
Warning data；The wind-force warning data be the wind data comprising latitude and longitude information, data format be (Lng2, Lat2, F,
T)；Wherein Lng2 is longitude, and Lat2 is latitude, and F is wind-force, and T is the moment.
The base station control module connects multiple base station modules, and switching or the transformer of power transmission cable is arranged in base station module
In equipment；Base station module connection cables sensor module, cable sensor are arranged on power transmission cable, and cable sensor module is received
Collect the pulling force thermal resistance data of cable, data format is (Lng3, Lat3, D, R), and wherein Lng3 is where cable sensor module
Longitude, Lat3 are the latitude where cable sensor module, and D is pulling force, and R is thermal resistance.
The GIS server collects the data of each cable sensor by base station control module, and stores it in GIS
In database module；Be stored with cable Ageing Model in GIS database module, the cable Ageing Model by test in advance with
The aging data of practical power transmission cable same model cable measures corresponding tensile fracture under different thermal resistances；And heat is established with this
The function model of resistance and tensile fracture.
The cable sensor includes sensor control block (1), stringing module, loose ends module；Sensor control block
Controller chip, wireless transceiver and relay switch are included, the wireless transceiver is used to communicate with base station module realization, after
Electric switch has third gear, first grade of connection stringing, second gear neutral gear, third gear connection loose ends；Stringing module includes rechargeable battery
(2), from belt switch in battery；Stringing module includes two opposite sensor groups (3), and sensor group (3) measures electric current, pressure
It drops, temperature, connects stringing (4) between sensor group (3), the specification of stringing (4) is identical as practical power transmission cable (7)；Loose ends mould
Block includes detection sensor (5), for detecting loose ends on-state, connects loose ends (6) between detection sensor (5), loose ends (6)
Length it is longer than stringing (4)；In actual use, sensor control block (1) both ends connect practical power transmission cable (7), pass simultaneously
Sensor control module is fixedly connected with stringing module and loose ends module, keeps the pulling force on stringing (4) identical as power transmission cable, loose ends
(6) upper pulling force is unrelated with power transmission cable.
The stringing wired in parallel rechargeable battery, rechargeable battery charge when stringing module is connected, and rechargeable battery exists
Power supply is provided when loose ends module is connected for the sensor group of stringing module.
GIS server saves the wind data of collection and pulling force thermal resistance data to GIS database module；Comprehensive pre-warning mould
Block converts tensile fracture data D for thermal resistance data R according to cable Ageing Model for pulling force thermal resistance datab；Comprehensive pre-warning module
The data of GIS database module are integrated, i.e., as (Lng3, Lat3, D, Db) with (Lng2, Lat2, F, T) and (Lng1,
Lat1, H) longitude and latitude it is identical when, merge into (Lng4, Lat4, D, Db, F, T, H), and save into warning data, Lng4 is equal to
Lng3 as Lng3=Lng2=Lng1, Lat4 are equal to the Lat3 as Lat3=Lat2=Lat1；
Comprehensive pre-warning module is according to warning data calculation risk rate V=(D/Db)×(F/Fb)×(H/Hb)；Wherein DbIt is disconnected
Split pulling force data, FbFor wind-force threshold value, HbFor elevation threshold；Comprehensive pre-warning module regenerates risk data, and risk data format is
(Lng4, Lat4, V, T).
The background for showing screen is map background, and risk data is shown the map in display screen by comprehensive pre-warning module
In background, wherein showing the coordinate for determining display according to Lng4, Lat4, show that the color of various concentration, V value get over great Yan according to V
Color is deeper, the time shaft according to T as time change, Dynamically Announce.
The establishment process of cable Ageing Model are as follows:
1) 1000 sections being cut into the cable of practical power transmission cable same model, every section of length is 50-100cm, as
Sample to be tested；
2) sample to be tested is subjected to aging under conditions of different pH value solution, cold and hot variation respectively；
3) sample to be tested after aging is subjected to thermo-resistance measurement, obtains thermal resistance value, carry out pulling force measurement later, it is disconnected to obtain it
Split pulling force；
4) thermal resistance-tensile fracture curve is established according to the data that step 3) obtains；
5) linear regression is carried out to the curve of step 4) and obtains cable Ageing Model.
The present invention has the advantages that
The present invention provides a kind of cable sensors, can be with the ageing rate of on-line determination cable, while having no effect on cable
Transmission of electricity；The early warning of early warning system of the invention based on cable ageing rate and wind-force, strong wind can cause heavy losses to transmission of electricity, knot
Zygonema cable ageing rate can provide the high-precision early warning for the cable of different aging conditions；The present invention provides the surveys of ageing rate
Determine mode, can be applied to the evaluation of other cable agings；The present invention by early warning as the result is shown on the display screen, due to collecting
Data collected only for the coordinate of base station location, therefore be that a red dot, red dot are shown with base station location in display
Size show according to the transmission power of base station determine, the risk class for the early warning that can intuitively withdraw deposit.
Detailed description of the invention
By reading the following detailed description of the preferred embodiment, various other advantages and benefits are common for this field
Technical staff will become clear.The drawings are only for the purpose of illustrating a preferred embodiment, and is not considered as to the present invention
Limitation.And throughout the drawings, the same reference numbers will be used to refer to the same parts.In the accompanying drawings:
Attached drawing 1 shows the system structure diagram of embodiment according to the present invention；
Attached drawing 2 shows the cable sensor structural schematic diagram of embodiment according to the present invention；
Attached drawing 3 shows the cable sensor connection schematic diagram of embodiment according to the present invention.
Specific embodiment
The illustrative embodiments of the disclosure are more fully described below with reference to accompanying drawings.Although showing this public affairs in attached drawing
The illustrative embodiments opened, it being understood, however, that may be realized in various forms the disclosure without the reality that should be illustrated here
The mode of applying is limited.It is to be able to thoroughly understand the disclosure on the contrary, providing these embodiments, and can be by this public affairs
The range opened is fully disclosed to those skilled in the art.
Embodiment according to the present invention proposes a kind of fine early warning system of GIS power grid based on cable sensor, special
Sign is to include GIS server, is GIS database module, weather warning module, base station control module, comprehensive pre-warning module, multiple
Base station module and multiple cable sensor modules；GIS database module, weather warning module, base station control module, synthesis are pre-
Alert module respectively with GIS server data connection；GIS server collects the data of weather warning module and base station control module,
And it is stored in GIS database module；Comprehensive pre-warning module is shown after the data in GIS database module are carried out integrated treatment
On its display screen.
Store the map datum comprising altitude information in the GIS database module, data format be (Lng1,
Lat1, H), wherein Lng1 is longitude, and Lat1 is latitude, and H is height above sea level.
The weather warning module is wind-force warning module, and the wind-force in 24-72 hours future is obtained from meteorological data center
Warning data；The wind-force warning data be the wind data comprising latitude and longitude information, data format be (Lng2, Lat2, F,
T)；Wherein Lng2 is longitude, and Lat2 is latitude, and F is wind-force, and T is the moment.
The base station control module connects multiple base station modules, and switching or the transformer of power transmission cable is arranged in base station module
In equipment；Base station module connection cables sensor module, cable sensor are arranged on power transmission cable, and cable sensor module is received
Collect the pulling force thermal resistance data of cable, data format is (Lng3, Lat3, D, R), and wherein Lng3 is where cable sensor module
Longitude, Lat3 are the latitude where cable sensor module, and D is pulling force, and R is thermal resistance.
The GIS server collects the data of each cable sensor by base station control module, and stores it in GIS
In database module；Be stored with cable Ageing Model in GIS database module, the cable Ageing Model by test in advance with
The aging data of practical power transmission cable same model cable measures corresponding tensile fracture under different thermal resistances；And heat is established with this
The function model of resistance and tensile fracture.
The cable sensor includes sensor control block (1), stringing module, loose ends module；Sensor control block
Controller chip, wireless transceiver and relay switch are included, the wireless transceiver is used to communicate with base station module realization, after
Electric switch has third gear, first grade of connection stringing, second gear neutral gear, third gear connection loose ends；Stringing module includes rechargeable battery
(2), from belt switch in battery；Stringing module includes two opposite sensor groups (3), and sensor group (3) measures electric current, pressure
It drops, temperature, connects stringing (4) between sensor group (3), the specification of stringing (4) is identical as practical power transmission cable (7)；Loose ends mould
Block includes detection sensor (5), for detecting loose ends on-state, connects loose ends (6) between detection sensor (5), loose ends (6)
Length it is longer than stringing (4)；In actual use, sensor control block (1) both ends connect practical power transmission cable (7), pass simultaneously
Sensor control module is fixedly connected with stringing module and loose ends module, keeps the pulling force on stringing (4) identical as power transmission cable, loose ends
(6) upper pulling force is unrelated with power transmission cable.
The stringing wired in parallel rechargeable battery, rechargeable battery charge when stringing module is connected, and rechargeable battery exists
Power supply is provided when loose ends module is connected for the sensor group of stringing module.
GIS server saves the wind data of collection and pulling force thermal resistance data to GIS database module；Comprehensive pre-warning mould
Block converts tensile fracture data D for thermal resistance data R according to cable Ageing Model for pulling force thermal resistance datab；Comprehensive pre-warning module
The data of GIS database module are integrated, i.e., as (Lng3, Lat3, D, Db) with (Lng2, Lat2, F, T) and (Lng1,
Lat1, H) longitude and latitude it is identical when, merge into (Lng4, Lat4, D, Db, F, T, H), and save into warning data, Lng4 is equal to
Lng3 as Lng3=Lng2=Lng1, Lat4 are equal to the Lat3 as Lat3=Lat2=Lat1；
Comprehensive pre-warning module is according to warning data calculation risk rate V=(D/Db)×(F/Fb)×(H/Hb)；Wherein DbIt is disconnected
Split pulling force data, FbFor wind-force threshold value, HbFor elevation threshold；Comprehensive pre-warning module regenerates risk data, and risk data format is
(Lng4, Lat4, V, T).
The background for showing screen is map background, and risk data is shown the map in display screen by comprehensive pre-warning module
In background, wherein showing the coordinate for determining display according to Lng4, Lat4, show that the color of various concentration, V value get over great Yan according to V
Color is deeper, the time shaft according to T as time change, Dynamically Announce.
The establishment process of cable Ageing Model are as follows:
1) 1000 sections being cut into the cable of practical power transmission cable same model, every section of length is 50-100cm, as
Sample to be tested；
2) sample to be tested is subjected to aging under conditions of different pH value solution, cold and hot variation respectively；
3) sample to be tested after aging is subjected to thermo-resistance measurement, obtains thermal resistance value, carry out pulling force measurement later, it is disconnected to obtain it
Split pulling force；
4) thermal resistance-tensile fracture curve is established according to the data that step 3) obtains；
5) linear regression is carried out to the curve of step 4) and obtains cable Ageing Model.
When showing risk data on the display screen, the position of each base station shows a circle, and circle color is according to V
Show the color of various concentration, V value is bigger, and color is deeper.The diameter of circle is determining according to the transmission power of respective base station, power
The diameter of more great circle is bigger, to intuitively show the risk of base station and coverage.
The foregoing is only a preferred embodiment of the present invention, but scope of protection of the present invention is not limited thereto,
In the technical scope disclosed by the present invention, any changes or substitutions that can be easily thought of by anyone skilled in the art,
It should be covered by the protection scope of the present invention.Therefore, protection scope of the present invention should be with the protection model of the claim
Subject to enclosing.
Claims (5)
1. a kind of fine early warning system of GIS power grid based on cable sensor, it is characterised in that including GIS server, GIS data
Library module, weather warning module, base station control module, comprehensive pre-warning module, multiple base station modules and multiple cable sensors
Module；GIS database module, weather warning module, base station control module, comprehensive pre-warning module respectively with GIS server data
Connection；GIS server collects the data of weather warning module and base station control module, and is stored in GIS database module；It is comprehensive
It closes after the data in GIS database module are carried out integrated treatment by warning module and shows on its display screen；
Store the map datum comprising altitude information in the GIS database module, data format be (Lng1, Lat1,
H), wherein Lng1 is longitude, and Lat1 is latitude, and H is height above sea level；
The weather warning module is wind-force warning module, and the wind-force early warning in 24-72 hours future is obtained from meteorological data center
Data；The wind-force warning data is the wind data comprising latitude and longitude information, and data format is (Lng2, Lat2, F, T)；Its
Middle Lng2 is longitude, and Lat2 is latitude, and F is wind-force, and T is the moment；
The base station control module connects multiple base station modules, and switching or the transformer equipment of power transmission cable is arranged in base station module
On；Base station module connection cables sensor module, cable sensor are arranged on power transmission cable, cable sensor module collection line
The pulling force thermal resistance data of cable, data format are (Lng3, Lat3, D, R), and wherein Lng3 is the warp where cable sensor module
Degree, Lat3 are the latitude where cable sensor module, and D is pulling force, and R is thermal resistance；
The GIS server collects the data of each cable sensor by base station control module, and stores it in GIS data
In library module；It is stored with cable Ageing Model in GIS database module, the cable Ageing Model by testing and reality in advance
The aging data of power transmission cable same model cable measures corresponding tensile fracture under different thermal resistances；And with this establish thermal resistance and
The function model of tensile fracture；The cable sensor includes sensor control block (1), stringing module, loose ends module；Sensing
Device control module includes controller chip, wireless transceiver and relay switch, and the wireless transceiver is used for and base station module
Realize communication, relay switch has third gear, first grade of connection stringing, second gear neutral gear, third gear connection loose ends；Stringing module packet
It includes rechargeable battery (2), from belt switch in battery；Stringing module includes two opposite sensor groups (3), and sensor group (3) is surveyed
Electric current, pressure drop, temperature are measured, connects stringing (4) between sensor group (3), specification and practical power transmission cable (7) phase of stringing (4)
Together；Loose ends module includes detection sensor (5), and for detecting loose ends on-state, detection sensor connects loose ends between (5)
(6), the length of loose ends (6) is longer than stringing (4)；In actual use, sensor control block (1) both ends connect practical power transmission cable
(7), while sensor control block is fixedly connected with stringing module and loose ends module, makes pulling force and power transmission line on stringing (4)
Cable is identical, and loose ends (6) upper pulling force is unrelated with power transmission cable.
2. the GIS power grid fine early warning system according to claim 1 based on cable sensor, it is characterised in that: described
Stringing wired in parallel rechargeable battery, rechargeable battery charge when stringing module is connected, and rechargeable battery is connected in loose ends module
When for the sensor group of stringing module provide power supply.
3. the GIS power grid fine early warning system according to claim 2 based on cable sensor, it is characterised in that: GIS clothes
Business device saves the wind data of collection and pulling force thermal resistance data to GIS database module；Comprehensive pre-warning module is by pulling force thermal resistance
Data convert tensile fracture data D for thermal resistance data R according to cable Ageing Modelb；Comprehensive pre-warning module is by GIS database mould
The data of block are integrated, i.e., as (Lng3, Lat3, D, Db) with the longitude and latitude of (Lng2, Lat2, F, T) and (Lng1, Lat1, H)
When identical, (Lng4, Lat4, D, D are merged intob, F, T, H), and save into warning data, Lng4 is equal to and works as Lng3=Lng2=
Lng3 when Lng1, Lat4 are equal to the Lat3 as Lat3=Lat2=Lat1；
Comprehensive pre-warning module is according to warning data calculation risk rate V=(D/Db)×(F/Fb)×(H/Hb)；Wherein DbIt is drawn for fracture
Force data, FbFor wind-force threshold value, HbFor elevation threshold；Comprehensive pre-warning module regenerates risk data, and risk data format is
(Lng4, Lat4, V, T).
4. the GIS power grid fine early warning system according to claim 3 based on cable sensor, it is characterised in that: display
The background of screen is map background, and comprehensive pre-warning module shows risk data on the map background of display screen, wherein
Display determines the coordinate of display according to Lng4, Lat4, the color of various concentration is shown according to V, V value is bigger, and color is deeper, according to T
As the time shaft of time change, Dynamically Announce.
5. the GIS power grid fine early warning system according to claim 4 based on cable sensor, it is characterised in that: cable
The establishment process of Ageing Model are as follows:
1) 1000 sections will be cut into the cable of practical power transmission cable same model, every section of length is 50-100cm, as to be measured
Sample；
2) sample to be tested is subjected to aging under conditions of different pH value solution, cold and hot variation respectively；
3) sample to be tested after aging is subjected to thermo-resistance measurement, obtains thermal resistance value, carry out pulling force measurement later, obtained its fracture and draw
Power；
4) thermal resistance-tensile fracture curve is established according to the data that step 3) obtains；
5) linear regression is carried out to the curve of step 4) and obtains cable Ageing Model.
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