CN108898798A - A kind of power grid earthquake pre-warning method and system - Google Patents
A kind of power grid earthquake pre-warning method and system Download PDFInfo
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- CN108898798A CN108898798A CN201810504570.2A CN201810504570A CN108898798A CN 108898798 A CN108898798 A CN 108898798A CN 201810504570 A CN201810504570 A CN 201810504570A CN 108898798 A CN108898798 A CN 108898798A
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- G—PHYSICS
- G08—SIGNALLING
- G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
- G08B21/00—Alarms responsive to a single specified undesired or abnormal condition and not otherwise provided for
- G08B21/02—Alarms for ensuring the safety of persons
- G08B21/10—Alarms for ensuring the safety of persons responsive to calamitous events, e.g. tornados or earthquakes
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- G—PHYSICS
- G08—SIGNALLING
- G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
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Abstract
A kind of power grid earthquake pre-warning method and system, the earthquake pre-warning method is based on that earthquake monitoring point is arranged in substation, and sends warning information by the internal communication net of power grid or intelligent electric meter；The method includes obtaining earthquake motion Wave data by earthquake monitoring point, the characteristic value for extracting the earthquake motion Wave data is sent to earthquake pre-warning data center；Earthquake speed is carried out according to the characteristic value by the earthquake pre-warning data center again sentence to obtain speed sentencing information, and the speed sentenced into information be distributed to warning information by preset range and mode and receive object.Method provided by the invention can merge earthquake pre-warning technology with intelligent power grid technology, reinforce the antidetonation emergency capability of power grid, while convenient for the operation and maintenance to earthquake monitoring point, realize the tremendous economic social value of earthquake pre-warning technology.
Description
Technical field
The invention belongs to earthquake early-warning system, in particular to a kind of power grid earthquake pre-warning method and system.
Background technique
Earthquake is natural calamity that is serious and taking place frequently, can cause heavy losses to people's life security and social economy；Ground
Early warning is shaken as the important channel for mitigating disaster, can reduce or remit earthquake influence caused by human society to a certain extent.Ground
Shake alarm mode can be divided into two kinds：Early warning based on earthquake precursor observation and the early warning based on strong-motion earthquake observation.Omen early warning is logical
Cross observation crustal stress, deform, earth magnetism is pre-, the variation of ground resistivity and natural potential etc., predict earthquake generation position and
Time, such method can provide the pre-warning time of a couple of days to several months, but the accuracy predicted is lower, there is successfully early warning in history
Precedent, also have the situation that social fear is caused due to mistake issues predictive information.In contrast, based on the earthquake of strong-motion earthquake observation
Early warning issues warning signal after earthquake generation and before coverage expansion, has high reliability.
Earthquake pre-warning technology based on strong-motion earthquake observation is the speed difference and seismic wave and electric wave using P-wave with S wave
Speed difference is realized to early warning local and apart from earthquake centre compared with far region.Seismic wave is divided into three types by circulation way：Longitudinal wave (P
Wave), shear wave (S wave) and surface wave (L wave).P wave is translatory wave, and spread speed is 5.5~7km/s in the earth's crust, it makes ground
It vibrates up and down, it is destructive weaker, but reach at first and carry seismic source information.S wave is shearing wave, the spread speed in the earth's crust
For 3.2~4.0km/s, make ground that horizontal vibration occur, it is destructive stronger, it is reached after P wave.Surface wave is also known as L wave, is by indulging
Wave and shear wave excite the mixed recharge of generation after earth's surface is met, and wavelength is big, amplitude is strong, propagate along ground surface, reach after S wave
It arrives.Therefore, using destructive lesser P wave as the pre-warning signal of earthquake, early warning can be realized.
With the development of intelligent power grid technology, earthquake pre-warning technology and intelligent power grid technology can be constructed power grid earthquake
Early warning system can be realized intelligent link in wide scope, and can reinforce the antidetonation emergency capability of power grid, while being also convenient for earthquake
Operation, maintenance and the communication of monitoring point.
Summary of the invention
The present invention provides a kind of power grid earthquake pre-warning method and system, and its purpose is to solve the fortune of earthquake monitoring point
Row, maintenance and between Communication, while by constantly update reliability index, provided very for the accuracy of earthquake pre-warning
High guarantee.
The present invention provides a kind of power grid earthquake pre-warning methods, it is improved in that the method includes：
By seismic sensor from being set in advance in substation and/or the indoor earthquake monitoring point of power transformation obtains earthquake motion wave
The earthquake motion Wave data and characteristic value are sent to earthquake by graphic data and the characteristic value for extracting the earthquake motion Wave data
Warning data center；
The earthquake pre-warning data center carries out earthquake pre-warning judgement according to the earthquake motion Wave data and characteristic value, and
Earthquake pre-warning is judged that obtained warning information is distributed to warning information and receives object.
Further, the substation and/or the indoor earthquake monitoring point of power transformation are configured by the following method：
In urban area of the seismic regionalization positioned at 8 degree or more, it is with the substation that voltage class is 35kV or more
The circle that radius is 30km is drawn respectively in the center of circle；If any one circle is covered by other circles completely, delete described completely by it
He justifies covered circle, and arranges earthquake monitoring point in the center point substation of remaining each circle；Not by 35kV's or more
Substation is that the selection transformer room 10kV arranges earthquake monitoring point in the region of the circle covering in the center of circle；
In seismic regionalization in 8 degree or more of project of transmitting and converting electricity region, with voltage class be exchange 1000kV and with
Upper or direct current ± 800kV or more crucial substation is three circles that the center of circle draws that radius is 30km, 60km and 90km, point
Three circles are not subjected to six equal parts, obtain three round arc sections；
In the range of the crucial substation of distance is no more than 105km, drawn respectively using the substation of 35kV or more as the center of circle
Radius processed is the circle of 15km；If the circle that the radius is 15km intersects with two arc sections simultaneously, delete and two circular arcs
The circle that other radiuses of section intersection are 15km, under conditions of intersection in the circle for enabling each arc section be 15km with a radius,
The radius is that earthquake monitoring point is arranged in the center point substation of the circle of 15km；Intersect if the arc section is not present with it
Radius is the circle of 15km, then is arranging earthquake monitoring point in the transformer room 10kV in 15km with the arc section；
The key substation is the substation for providing fortification against earthquakes and being classified as Class A.
Further, the earthquake monitoring point is arranged in the substation and/or the indoor original state soil layer of power transformation, master control building
And transformer base；
Earthquake monitoring point well-digging in the original state soil layer is arranged in the vacant lot of the substation and/or transformer room, institute
Key data source of the earthquake motion Wave data monitored as early warning；
Earthquake monitoring point in the master control building is arranged in raft foundation girt strip top, pile foundation ground beam or the bar shaped of one floor of master control building
On the bottom plate on basic top；
Earthquake monitoring point at the transformer base is set at main transformer base platform, if the main transformer is set
Earthquake isolating equipment is set, then on the steel framework body panel of the earthquake isolating equipment and main transformer top of the box is arranged with earthquake monitoring point.
Further, the earthquake pre-warning data center is pre- according to the earthquake motion Wave data and characteristic value progress earthquake
Alert judgement, and earthquake pre-warning is judged that obtained warning information is distributed to warning information and receives object, including：
The earthquake pre-warning data center tentatively judges the corresponding earthquake monitoring point of the characteristic value according to the characteristic value
Whether seismic wave arrival is had, if so, warning information is further extracted according to the corresponding earthquake motion Wave data of the characteristic value,
And obtained warning information is distributed to warning information and receives object；
The characteristic value includes earthquake amplitude, seismic acceleration and seismic frequency；The seismic wave include earthquake P wave and/
Or earthquake S wave；The warning information include judge earthquake magnitude, focus longitude and latitude and depth, seismic wave arrival time, estimate earthquake intensity and
Reliability index.
The present invention provides a kind of power grid earthquake early-warning systems, it is improved in that the system comprises：
Seismic sensor, for from being set in advance in substation and/or the indoor earthquake monitoring point of power transformation obtains earthquake motion
Wave data, the characteristic value for extracting the earthquake motion Wave data and earthquake motion Wave data and its characteristic value are sent to ground
Shake warning data center；
Earthquake pre-warning data center, for carrying out earthquake pre-warning judgement according to the earthquake motion Wave data and characteristic value,
And earthquake pre-warning is judged that obtained warning information is distributed to warning information and receives object.
Further, which further includes monitoring point setup module, is specifically used for：
In urban area of the seismic regionalization positioned at 8 degree or more, it is with the substation that voltage class is 35kV or more
The circle that radius is 30km is drawn respectively in the center of circle；If any one circle is covered by other circles completely, delete described completely by it
He justifies covered circle, and arranges earthquake monitoring point in the center point substation of remaining each circle；Not by 35kV's or more
Substation is that the selection transformer room 10kV arranges earthquake monitoring point in the region of the circle covering in the center of circle；
In seismic regionalization in 8 degree or more of project of transmitting and converting electricity region, with voltage class be exchange 1000kV and with
Upper or direct current ± 800kV or more crucial substation is three circles that the center of circle draws that radius is 30km, 60km and 90km, point
Three circles are not subjected to six equal parts, obtain three round arc sections；
In the range of the crucial substation of distance is no more than 105km, drawn respectively using the substation of 35kV or more as the center of circle
Radius processed is the circle of 15km；If the circle that the radius is 15km intersects with two arc sections simultaneously, delete and two circular arcs
The circle that other radiuses of section intersection are 15km, under conditions of intersection in the circle for enabling each arc section be 15km with a radius,
The radius is that earthquake monitoring point is arranged in the center point substation of the circle of 15km；Intersect if the arc section is not present with it
Radius is the circle of 15km, then is arranging earthquake monitoring point in the transformer room 10kV in 15km with the arc section；
The key substation is the substation for providing fortification against earthquakes and being classified as Class A.
Further, the earthquake pre-warning data center, is specifically used for：
Tentatively judge whether the corresponding earthquake monitoring point of the characteristic value has seismic wave arrival according to the characteristic value, if
It is warning information further then to be extracted according to the corresponding earthquake motion Wave data of the characteristic value, and obtained early warning is believed
Breath is distributed to warning information and receives object；
The characteristic value includes earthquake amplitude, seismic acceleration and seismic frequency；The seismic wave include earthquake P wave and/
Or earthquake S wave；The warning information include judge earthquake magnitude, focus longitude and latitude and depth, seismic wave arrival time, estimate earthquake intensity and
Reliability index.
Beneficial effects of the present invention：
A kind of power grid earthquake pre-warning method and system provided by the invention, by the way that Seismic network is arranged in power grid,
It can be that the operation of Seismic network and maintenance provide safeguard, reduce cost；It will acquire simultaneously by the existing citation method of power grid
Seismic signature value be sent to power grid warning center, good channel can be provided for the transmission of earthquake information, realize wide area model
Interior intelligent link is enclosed, while reinforcing the antidetonation emergency capability of power grid.
Detailed description of the invention
Fig. 1 is a kind of power grid earthquake pre-warning method flow diagram provided by the invention；
Fig. 2 be in the embodiment of the present invention seismic regionalization be located at 8 degree or more, exchange 1000kV or more or direct current ±
The schematic diagram of the project of transmitting and converting electricity area arrangement earthquake monitoring point of 800kV or more.
Specific embodiment
It elaborates with reference to the accompanying drawing to a specific embodiment of the invention.
A kind of power grid earthquake pre-warning method, as shown in Figure 1, the method includes：By seismic sensor from presetting
Earthquake motion Wave data is obtained in substation and/or the indoor earthquake monitoring point of power transformation and extracts the earthquake motion Wave data
The earthquake motion Wave data and characteristic value are sent to earthquake pre-warning data center by characteristic value；
The earthquake pre-warning data center carries out earthquake pre-warning judgement according to the earthquake motion Wave data and characteristic value, and
Earthquake pre-warning is judged that obtained warning information is distributed to warning information and receives object.
Specifically, the substation and/or the indoor earthquake monitoring point of power transformation are configured by the following method：
In urban area of the seismic regionalization positioned at 8 degree or more, it is with the substation that voltage class is 35kV or more
The circle that radius is 30km is drawn respectively in the center of circle；If any one circle is covered by other circles completely, delete described completely by it
He justifies covered circle, and arranges earthquake monitoring point in the center point substation of remaining each circle；Not by 35kV's or more
Substation is that the selection transformer room 10kV arranges earthquake monitoring point in the region of the circle covering in the center of circle；
In seismic regionalization in 8 degree or more of project of transmitting and converting electricity region, with voltage class be exchange 1000kV and with
Upper or direct current ± 800kV or more crucial substation is three circles that the center of circle draws that radius is 30km, 60km and 90km, point
Three circles are not subjected to six equal parts, obtain three round arc sections；
In the range of the crucial substation of distance is no more than 105km, drawn respectively using the substation of 35kV or more as the center of circle
Radius processed is the circle of 15km；If the circle that the radius is 15km intersects with two arc sections simultaneously, delete and two circular arcs
The circle that other radiuses of section intersection are 15km, under conditions of intersection in the circle for enabling each arc section be 15km with a radius,
The radius is that earthquake monitoring point is arranged in the center point substation of the circle of 15km；Intersect if the arc section is not present with it
Radius is the circle of 15km, then is arranging earthquake monitoring point in the transformer room 10kV in 15km with the arc section；
For example, as shown in Fig. 2, wherein O point is that seismic regionalization is located at 8 degree or more, exchanges 1000kV or more or direct current
Crucial substation in the project of transmitting and converting electricity region of ± 800kV or more, it is 30km that radius is drawn by the center of circle of O point, 60km and
Circle A, B and the C of 90km；And annulus is divided into 6 equal portions, respectively circular arc A1~A6, B1~B6 and C1~C6.Each circular arc is adjacent
Close 35kV and the above substation are selected as alternative substation, centered on each alternative substation, draw by radius of 15km
Circle requires each circular arc of circle A, B and C at least to intersect with a website circle.Meet the alternative change of the minimum number of above-mentioned condition
Power station is selected as monitoring station.When certain region distribution-free circle covers, other can be selected convenient for the position of management in the area
Monitoring point, such as the transformer room 10kV are set.
The key substation is the substation for providing fortification against earthquakes and being classified as Class A.
Specifically, the earthquake monitoring point be arranged in the substation and/or the indoor original state soil layer of power transformation, master control building and
Transformer base；
Earthquake monitoring point well-digging in the original state soil layer is arranged in the vacant lot of the substation and/or transformer room, institute
Key data source of the earthquake motion Wave data monitored as early warning；
Earthquake monitoring point in the master control building is arranged in raft foundation girt strip top, pile foundation ground beam or the bar shaped of one floor of master control building
On the bottom plate on basic top；
Earthquake monitoring point at the transformer base is set at main transformer base platform, if the main transformer is set
Earthquake isolating equipment is set, then on the steel framework body panel of the earthquake isolating equipment and main transformer top of the box is arranged with earthquake monitoring point.
Specifically, the earthquake pre-warning data center carries out earthquake pre-warning according to the earthquake motion Wave data and characteristic value
Judgement, and earthquake pre-warning is judged that obtained warning information is distributed to warning information and receives object, including：
The earthquake pre-warning data center tentatively judges the corresponding earthquake monitoring point of the characteristic value according to the characteristic value
Whether seismic wave arrival is had, if so, warning information is further extracted according to the corresponding earthquake motion Wave data of the characteristic value,
And obtained warning information is distributed to warning information and receives object；
The characteristic value includes earthquake amplitude, seismic acceleration and seismic frequency；The seismic wave include earthquake P wave and/
Or earthquake S wave；The warning information include judge earthquake magnitude, focus longitude and latitude and depth, seismic wave arrival time, estimate earthquake intensity and
Reliability index.
It includes power-management centre, substation, power plant and power consumer that the warning information, which receives object,；The power grid
In control centre and power grid substation by special electric power communication network transmit earthquake pre-warning information, the power plant by with electric power
The data-interface of communication network transmits earthquake pre-warning information；The power consumer receives earthquake pre-warning letter by intelligent electric meter device
Breath；Wherein power consumer is divided into conventional power user and important power consumers；The warning information receives object according to earthquake speed
Sentence information and makes following operation；
Power-management centre：Power grid earthquake pre-warning is executed, for the electric load situation of different zones, anticipation may be to electricity
The impact occurred is netted, special order is carried out to emergency；
Substation：Stop the operation of high anti-seismic risk, such as breaker operator, personnel enter earthquake emergency state；
Power plant：Make emergency fence operation by safety standard；
Important power consumers：Hospital starts emergency power supply automatically；School carries out emergency evacuation by prediction scheme；High rise elevator is by pre-
Case is shut down；
Conventional power user：Ammeter buzzer alarm, prompt person enter emergency rating.
The present invention provides a kind of power grid earthquake early-warning system, the system comprises：
Seismic sensor, for from being set in advance in substation and/or the indoor earthquake monitoring point of power transformation obtains earthquake motion
Wave data, the characteristic value for extracting the earthquake motion Wave data and earthquake motion Wave data and its characteristic value are sent to ground
Shake warning data center；
Earthquake pre-warning data center, for carrying out earthquake pre-warning judgement according to the earthquake motion Wave data and characteristic value,
And earthquake pre-warning is judged that obtained warning information is distributed to warning information and receives object.
Specifically, the system further includes monitoring point setup module, it is specifically used for：
In urban area of the seismic regionalization positioned at 8 degree or more, it is with the substation that voltage class is 35kV or more
The circle that radius is 30km is drawn respectively in the center of circle；If any one circle is covered by other circles completely, delete described completely by it
He justifies covered circle, and arranges earthquake monitoring point in the center point substation of remaining each circle；Not by 35kV's or more
Substation is that the selection transformer room 10kV arranges earthquake monitoring point in the region of the circle covering in the center of circle；
In seismic regionalization in 8 degree or more of project of transmitting and converting electricity region, with voltage class be exchange 1000kV and with
Upper or direct current ± 800kV or more crucial substation is three circles that the center of circle draws that radius is 30km, 60km and 90km, point
Three circles are not subjected to six equal parts, obtain three round arc sections；
In the range of the crucial substation of distance is no more than 105km, drawn respectively using the substation of 35kV or more as the center of circle
Radius processed is the circle of 15km；If the circle that the radius is 15km intersects with two arc sections simultaneously, delete and two circular arcs
The circle that other radiuses of section intersection are 15km, under conditions of intersection in the circle for enabling each arc section be 15km with a radius,
The radius is that earthquake monitoring point is arranged in the center point substation of the circle of 15km；Intersect if the arc section is not present with it
Radius is the circle of 15km, then is arranging earthquake monitoring point in the transformer room 10kV in 15km with the arc section；
The key substation is the substation for providing fortification against earthquakes and being classified as Class A.
Specifically, the earthquake pre-warning data center, is specifically used for：
Tentatively judge whether the corresponding earthquake monitoring point of the characteristic value has seismic wave arrival according to the characteristic value, if
It is warning information further then to be extracted according to the corresponding earthquake motion Wave data of the characteristic value, and obtained early warning is believed
Breath is distributed to warning information and receives object；
The characteristic value includes earthquake amplitude, seismic acceleration and seismic frequency；The seismic wave include earthquake P wave and/
Or earthquake S wave；The warning information include judge earthquake magnitude, focus longitude and latitude and depth, seismic wave arrival time, estimate earthquake intensity and
Reliability index.
Finally it should be noted that：The above embodiments are merely illustrative of the technical scheme of the present invention and are not intended to be limiting thereof, to the greatest extent
Invention is explained in detail referring to above-described embodiment for pipe, those of ordinary skills in the art should understand that：Still
It can be with modifications or equivalent substitutions are made to specific embodiments of the invention, and without departing from any of spirit and scope of the invention
Modification or equivalent replacement, should all cover within the scope of the claims of the present invention.
Claims (7)
1. a kind of power grid earthquake pre-warning method, which is characterized in that the method includes：
By seismic sensor from being set in advance in substation and/or the indoor earthquake monitoring point of power transformation obtains earthquake motion waveform number
According to and extract the characteristic value of the earthquake motion Wave data, the earthquake motion Wave data and characteristic value are sent to earthquake pre-warning
Data center；
The earthquake pre-warning data center carries out earthquake pre-warning judgement according to the earthquake motion Wave data and characteristic value, and by ground
Shake early warning judges that obtained warning information is distributed to warning information and receives object.
2. the method as described in claim 1, which is characterized in that the substation and/or the indoor earthquake monitoring point of power transformation are logical
Following method is crossed to be configured：
In urban area of the seismic regionalization positioned at 8 degree or more, the center of circle is in the substation for being 35kV or more using voltage class
The circle that radius is 30km is drawn respectively；If any one circle is covered by other circles completely, deletes and described justified completely by other
The circle covered, and earthquake monitoring point is arranged in the center point substation of remaining each circle；Not by the power transformation of 35kV or more
It stands and arranges earthquake monitoring point for the selection transformer room 10kV in the region of the circle covering in the center of circle；
In seismic regionalization in 8 degree or more of project of transmitting and converting electricity region, with voltage class be exchange 1000kV or more or
The crucial substation of direct current ± 800kV or more is three circles that the center of circle draws that radius is 30km, 60km and 90km, respectively by three
A circle carries out six equal parts, obtains three round arc sections；
In the range of the crucial substation of distance is no more than 105km, half is drawn respectively using the substation of 35kV or more as the center of circle
Diameter is the circle of 15km；If the circle that the radius is 15km intersects with two arc sections simultaneously, delete and two arc section phases
Other radiuses handed over are the circle of 15km, under conditions of intersection in the circle for enabling each arc section be 15km with a radius, described
Radius is that earthquake monitoring point is arranged in the center point substation of the circle of 15km；If the radius intersected with it is not present in the arc section
For the circle of 15km, then earthquake monitoring point is being arranged in the transformer room 10kV in 15km with the arc section；
The key substation is the substation for providing fortification against earthquakes and being classified as Class A.
3. method according to claim 2, which is characterized in that the earthquake monitoring point is arranged in the substation and/or change
The indoor original state soil layer of electricity, master control building and transformer base；
Earthquake monitoring point well-digging in the original state soil layer is arranged in the vacant lot of the substation and/or transformer room, is monitored
Key data source of the earthquake motion Wave data arrived as early warning；
Earthquake monitoring point in the master control building is arranged in raft foundation girt strip top, pile foundation ground beam or the strip footing of one floor of master control building
On the bottom plate on top；
Earthquake monitoring point at the transformer base is set at main transformer base platform, if the main transformer setting every
Device is shaken, then on the steel framework body panel of the earthquake isolating equipment and main transformer top of the box is arranged with earthquake monitoring point.
4. the method as described in claim 1, which is characterized in that the earthquake pre-warning data center is according to the earthquake motion waveform
Data and characteristic value carry out earthquake pre-warning judgement, and earthquake pre-warning is judged that obtained warning information is distributed to warning information and connects
Object is received, including：
Whether the earthquake pre-warning data center tentatively judges the corresponding earthquake monitoring point of the characteristic value according to the characteristic value
There is seismic wave arrival, if so, further extracting warning information according to the corresponding earthquake motion Wave data of the characteristic value, and will
Obtained warning information is distributed to warning information and receives object；
The characteristic value includes earthquake amplitude, seismic acceleration and seismic frequency；The seismic wave includes P-wave and/or ground
Shake S wave；The warning information include judge earthquake magnitude, focus longitude and latitude and depth, seismic wave arrival time, estimation earthquake intensity and reliably
Property index.
5. a kind of power grid earthquake early-warning system, which is characterized in that the system comprises：
Seismic sensor, for from being set in advance in substation and/or the indoor earthquake monitoring point of power transformation obtains earthquake motion waveform
Data, the characteristic value for extracting the earthquake motion Wave data and that earthquake motion Wave data and its characteristic value are sent to earthquake is pre-
Alert data center；
Earthquake pre-warning data center, for carrying out earthquake pre-warning judgement according to the earthquake motion Wave data and characteristic value, and will
Earthquake pre-warning judges that obtained warning information is distributed to warning information and receives object.
6. power grid earthquake early-warning system as claimed in claim 5, which is characterized in that the system further includes monitoring point setting mould
Block is specifically used for：
In urban area of the seismic regionalization positioned at 8 degree or more, the center of circle is in the substation for being 35kV or more using voltage class
The circle that radius is 30km is drawn respectively；If any one circle is covered by other circles completely, deletes and described justified completely by other
The circle covered, and earthquake monitoring point is arranged in the center point substation of remaining each circle；Not by the power transformation of 35kV or more
It stands and arranges earthquake monitoring point for the selection transformer room 10kV in the region of the circle covering in the center of circle；
In seismic regionalization in 8 degree or more of project of transmitting and converting electricity region, with voltage class be exchange 1000kV or more or
The crucial substation of direct current ± 800kV or more is three circles that the center of circle draws that radius is 30km, 60km and 90km, respectively by three
A circle carries out six equal parts, obtains three round arc sections；
In the range of the crucial substation of distance is no more than 105km, half is drawn respectively using the substation of 35kV or more as the center of circle
Diameter is the circle of 15km；If the circle that the radius is 15km intersects with two arc sections simultaneously, delete and two arc section phases
Other radiuses handed over are the circle of 15km, under conditions of intersection in the circle for enabling each arc section be 15km with a radius, described
Radius is that earthquake monitoring point is arranged in the center point substation of the circle of 15km；If the radius intersected with it is not present in the arc section
For the circle of 15km, then earthquake monitoring point is being arranged in the transformer room 10kV in 15km with the arc section；
The key substation is the substation for providing fortification against earthquakes and being classified as Class A.
7. power grid earthquake early-warning system as claimed in claim 5, which is characterized in that the earthquake pre-warning data center, specifically
For：
Tentatively judge whether the corresponding earthquake monitoring point of the characteristic value has seismic wave arrival according to the characteristic value, if so,
Warning information is further extracted according to the corresponding earthquake motion Wave data of the characteristic value, and obtained warning information is issued
Object is received to warning information；
The characteristic value includes earthquake amplitude, seismic acceleration and seismic frequency；The seismic wave includes P-wave and/or ground
Shake S wave；The warning information include judge earthquake magnitude, focus longitude and latitude and depth, seismic wave arrival time, estimation earthquake intensity and reliably
Property index.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110824560A (en) * | 2019-11-11 | 2020-02-21 | 宜宾凯翼汽车有限公司 | Earthquake monitoring system and method based on Internet of vehicles |
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