CN106443240B - A kind of electric power environmental monitoring system - Google Patents
A kind of electric power environmental monitoring system Download PDFInfo
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- CN106443240B CN106443240B CN201610782851.5A CN201610782851A CN106443240B CN 106443240 B CN106443240 B CN 106443240B CN 201610782851 A CN201610782851 A CN 201610782851A CN 106443240 B CN106443240 B CN 106443240B
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/001—Measuring interference from external sources to, or emission from, the device under test, e.g. EMC, EMI, EMP or ESD testing
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- Remote Monitoring And Control Of Power-Distribution Networks (AREA)
Abstract
A kind of electric power environmental monitoring system, including radiation transmitter, radiation receiver, microprocessor, induced current measuring unit, wherein radiation transmitter includes control processor, power splitter, 5 interference sources and its switch of parallel connection, 5 interference sources share a transmitting antenna, control processor, power splitter, 5 interference sources and its switch and transmitting antenna of parallel connection are sequentially connected, radiation receiver includes sequentially connected receiving antenna, converting unit, amplify filter unit and actinometry unit, microprocessor is separately connected actinometry unit and induced current measuring unit, Suresh Kumar, and the environmental parameter of distribution network can be measured, effectively judge distribution network exception.
Description
Technical field
The present invention relates to electric power environmentals to monitor field, and in particular to a kind of electric power environmental monitoring system.
Background technique
The progress of science and technology and economic rapid development, society rapidly increases power demand, however as power distribution network
The continuous development of cable process, distribution network line structure become increasingly complex, and branched line is various, for power distribution network power supply performance
Reliable and stable requirement it is higher and higher, while requirement of the user for power quality and service is also being continuously improved.
Currently, the mostly sudden and violent leakage of power distribution network in some rugged environments, is often struck by lightning, high wind, sleet, high temperature etc. from
The influence of right factor, and these factors can have an impact power distribution network performance.Therefore, the monitoring of power distribution network local environment is become
It obtains particularly important.Currently, mostly using temperature, humidity, the parameter of illumination to survey the major way of the environmental monitoring of distribution network
Amount, to judge whether environment is abnormal, to judge whether have an impact to distribution network, but this mode it is single,
Line quality can not be evaluated and tested effectively.
Summary of the invention
It is an object of the invention to overcome the deficiencies of the prior art and provide a kind of Suresh Kumars, and can measure electric power and match
The environmental parameter of power grid effectively judges the electric power environmental monitoring system of distribution network exception.
System is monitored the present invention provides a kind of electric power environmental, including radiation transmitter, radiation receiver, microprocessor,
Induced current measuring unit, wherein radiation transmitter include control processor, power splitter, parallel connection 5 interference sources and its
Switch, 5 interference sources share a transmitting antenna；
Control processor, power splitter, 5 interference sources of parallel connection and its switch and transmitting antenna are sequentially connected, radiation
Receiver includes sequentially connected receiving antenna, converting unit, amplification filter unit and actinometry unit, microprocessor difference
Connect actinometry unit and induced current measuring unit；
Control processor is used to control 5 interference sources of the power splitter by different power distributions to parallel connection, and divides
Not Kong Zhi the switches of 5 interference sources successively opened at regular intervals in cycle T, emitted by same transmitting antenna dry
Disturb radiation signal；
Receiving antenna receives the distribution network radiation signal from the interference source interference radiation signal emitted and superposition,
Radiation signal is sent to microprocessor after converted unit, amplification filter unit and actinometry cell processing；
Microprocessor is opened for controlling induced current measuring unit in cycle T in the switch for being different from 5 interference sources
Time of time opening corresponding with the switch of 5 interference sources is identical to carry out the measurement of induced electricity flow valuve respectively；
Microprocessor is also used to treated radiation signal, when in cycle T different from the opening of the switch of 5 interference sources
Between be identical in the induced electricity flow valuve and cycle T that measure 5 interference sources the corresponding time measurement opened of switch induced electricity
Flow valuve is compared with corresponding threshold range.
Preferably, the cycle T is the period in fixed period or variation.
Preferably, the transmitting antenna is multimodes emitting antenna.
Preferably, the corresponding threshold range is the threshold range of setting
Preferably, the corresponding threshold range is that actual test obtains when being worked normally by distribution network.
Preferably, the frequency of the radiation interference signals of 5 interference sources transmitting is identical.
Preferably, the frequency of the radiation interference signals of 5 interference sources transmitting is different.
The present invention also provides a kind of electric power environmental monitoring methods, in turn include the following steps:
(1) control processor control power splitter distributes preset equal-wattage to 5 interference sources of parallel connection, and controls
It makes the switch of 5 interference sources successively to open with the time of interval 5s, interference radiation signal is emitted by transmitting antenna；Simultaneously with
The switch of 5 interference sources successively opening time identical time controls induced current measuring unit by microprocessor and successively surveys
Measure the induced electricity flow valuve at corresponding moment；
(2) receiving antenna receives the distribution network radiation letter from the interference source interference radiation signal emitted and superposition
Number, radiation signal is sent to microprocessor, micro process after converted unit, amplification filter unit and actinometry cell processing
The radiation signal being sequentially received and preset standard radiation signal are compared by device, if error less than 0.01, under entering
One step；
(3) microprocessor successively corresponds to the induced electricity flow valuve at moment to switch opening times and switch is not switched on time correspondence
Induced electricity flow valuve seek difference, if the error between difference calibrates success less than 0.01, into next step；
(4) 5 interference sources of the power splitter by different power distributions to parallel connection are controlled by control processor, and
The switch for controlling 5 interference sources respectively is successively opened in cycle T with interval 30s, emits interference spoke by same transmitting antenna
Penetrate signal；
(5) receiving antenna receives the distribution network radiation letter from the interference source interference radiation signal emitted and superposition
Number, radiation signal is sent to microprocessor after converted unit, amplification filter unit and actinometry cell processing；
(6) microprocessor control control induced current measuring unit is in cycle T, in the switch for being different from 5 interference sources
The time of the time of opening opening corresponding with the switch of 5 interference sources is identical to carries out the measurement of induced electricity flow valuve respectively；
(7) the radiation signal F measured in cycle T, induced electricity flow valuve G and corresponding cycle T are formed into three-dimensional array collection [F
G；T], and it is sent to remote monitoring center in real time, it is stored；
(8) remote control center is drawn radiation signal F and induced electricity flow valuve G time history plot respectively and is carried out
Long-range monitoring is realized in display；
(9) at the end of each cycle T, radiation signal after being handled by microprocessor, cycle T is interior to be done different from 5
Disturb the corresponding opening of switch that 5 interference sources are identical in the induced electricity flow valuve and cycle T of the time measurement of the switch opening in source
Time measurement induced electricity flow valuve be compared with corresponding threshold range, confirm distribution network environment it is whether normal.
Preferably, power splitter is wherein controlled for different power distributions to connecting parallel by control processor in step (4)
5 interference sources connect meet P1:P2:P3:P4:P5=1:0.8 particular by the way of different power ratios:
0.5:0.3:0.1, wherein P1, P2, P3, P4, P5 respectively indicate the performance number of 5 corresponding interference sources.
Electric power environmental of the invention monitors system and method, may be implemented:
1) a kind of electric power environmental monitoring judgment mode is provided, traditional environmental parameter measurement method is different from, so that sentencing
Disconnected accuracy rate is higher, and power distribution network monitors better quality.
2) the quick discovery that can be realized distribution network line fault environment, is timely and effectively handled；
3) different times using induced current measuring unit when receiving interference signal and not receiving interference signal
Measured value, come to power distribution network itself performance and power distribution network working environment be monitored simultaneously, in no increase equipment cost
On the basis of, one group of data is measured, so that system performance is more superior more.
4) mode of power distribution, so that producing the interference radiation signal of different intensity, flexibility ratio is higher；
5) the packaged data sending method of set of arrays, error rate are low；
6) in the mode of switch on and off, interference source is closed when not working, has saved the energy；
7) transmitting of interference radiation signal is realized using same multimodes emitting antenna, so that system structure is more compact,
Volume reduces.
Detailed description of the invention
Fig. 1 is electric power environmental monitoring system structure diagram
Specific embodiment
The following detailed description of specific implementation of the invention, it is necessary to it is indicated herein to be, implement to be only intended to this hair below
Bright further explanation, should not be understood as limiting the scope of the invention, and field person skilled in the art is according to above-mentioned
Some nonessential modifications and adaptations that summary of the invention makes the present invention, still fall within protection scope of the present invention.
The present invention provides a kind of electric power environmentals to monitor system, as shown in Figure 1, system includes radiation transmitter, radiation is connect
Device, microprocessor are received, induced current measuring unit, wherein radiation transmitter includes control processor, power splitter, parallel connection
5 interference sources 1 and its switch, 5 interference sources share a transmitting antenna, wherein control processor, power splitter, parallel connection 5
A interference source and its switch and transmitting antenna be sequentially connected, radiation receiver include sequentially connected receiving antenna, converting unit,
Amplification filter unit and actinometry unit, microprocessor are separately connected actinometry unit and induced current measuring unit.
Control processor controls different interference source transmitting interference radiation signals, passes through single reception and transmitting antenna
The transmission for completing interference radiation signal, if distribution network line is normal, interference radiation signal that radiation receiver receives
Be it is fixed, if problematic, distribution network line itself generate radiation and interference source generate radiation superposition can become
Change, then the variation by the interference radiated signal strength at measurement radiation receiver can predict whether distribution network line has
It is abnormal.It is carried out however, only measuring and generating the radiation that interference radiation signal and distribution network line itself generates with an interference source
Superposition has little significance for actual measurement, because the radiation of distribution network line itself generation can be measured directly.In addition, outer
Influence of boundary's factor to radiation is different, therefore the interference radiation signal of varying strength and the spoke of distribution network line itself generation is arranged
It penetrates and is overlapped, measured by the superimposed radiation value of difference received to different time, so that it may judge distribution cable
Whether road is normal.In addition, other sensing units can also be had an impact while generating radiation signal due to interference source, because
This, can be by way of time warping, by other device sensing measurement times and actinometry time in actual measurement
It is staggered, so that other component measurement numerical value is more accurate.Induced current measuring unit is that power equipment monitors often
Measuring unit, however the actinometry in the present invention is combined, it can use induced current measuring unit and receiving interference letter
Number and different times when not receiving interference signal measured value, performance and power distribution network building ring to power distribution network itself
Border is monitored simultaneously, on the basis of no increase equipment cost, one group of data is measured, so that system performance is more excellent more
More.
In actual monitoring process, control processor is for controlling power splitter for different power distribution to parallel connection
5 interference sources, and respectively control 5 interference sources switch successively opened at regular intervals in cycle T, pass through
Same transmitting antenna transmitting interference radiation signal, interferes the frequency of radiation signal that can be selected according to the actual needs, example
It such as can be identical or different.
Receiving antenna receives the power distribution network radiation signal from the interference source interference radiation signal emitted and superposition, through turning
Radiation signal is sent to microprocessor after changing unit, amplifying filter unit and actinometry cell processing；Microprocessor also controls
Induced current measuring unit in the time for switching opening for being different from 5 interference sources and is identical to 5 interference sources in cycle T
The switch corresponding time opened carry out the measurement of induced electricity flow valuve respectively, cycle T is the period in fixed period or variation,；
Radiation signal after microprocessor is also used to handle, the sense of the opening time measurement of the interior switch different from 5 interference sources of cycle T
Answer the induced electricity flow valuve of the corresponding time measurement opened of the switch that 5 interference sources are identical in current value and cycle T with it is corresponding
Threshold range be compared, the threshold range that wherein threshold range can be obtained by experience or theoretical calculation is also possible to
When being worked normally to power distribution network in actual test, the threshold range obtained by a large amount of measurement data, and for safety
For the sake of, threshold range can also be set to 85% of maximum value and minimum value in actual test value be bound range, this threshold
Value then issues prompt, more than 100% bound range when then alarm.
The present invention also provides a kind of electric power environmental monitoring methods, in turn include the following steps:
(1) control processor control power splitter distributes preset equal-wattage to 5 interference sources of parallel connection, and controls
It makes the switch of 5 interference sources successively to open with the time of interval 5s, interference radiation signal is emitted by transmitting antenna；Simultaneously with
The switch of 5 interference sources successively opening time identical time controls induced current measuring unit by microprocessor and successively surveys
Measure the induced electricity flow valuve at corresponding moment；
(2) receiving antenna receives the distribution network radiation letter from the interference source interference radiation signal emitted and superposition
Number, radiation signal is sent to microprocessor, micro process after converted unit, amplification filter unit and actinometry cell processing
The radiation signal being sequentially received and preset standard radiation signal are compared by device, if error less than 0.01, under entering
One step；
(3) microprocessor successively corresponds to the induced electricity flow valuve at moment to switch opening times and switch is not switched on time correspondence
Induced electricity flow valuve seek difference, if the error between difference calibrates success less than 0.01, into next step；
(4) 5 interference sources of the power splitter by different power distributions to parallel connection are controlled by control processor, and
The switch for controlling 5 interference sources respectively is successively opened in cycle T with interval 30s, emits interference spoke by same transmitting antenna
Penetrate signal；
(5) receiving antenna receives the distribution network radiation letter from the interference source interference radiation signal emitted and superposition
Number, radiation signal is sent to microprocessor after converted unit, amplification filter unit and actinometry cell processing；
(6) microprocessor control control induced current measuring unit is in cycle T, in the switch for being different from 5 interference sources
The time of the time of opening opening corresponding with the switch of 5 interference sources is identical to carries out the measurement of induced electricity flow valuve respectively；
(7) the radiation signal F measured in cycle T, induced electricity flow valuve G and corresponding cycle T are formed into three-dimensional array collection [F
G；T], and it is sent to remote monitoring center in real time, it is stored；
(8) remote control center is drawn radiation signal F and induced electricity flow valuve G time history plot respectively and is carried out
Long-range monitoring is realized in display；
(9) at the end of each cycle T, radiation signal after being handled by microprocessor, cycle T is interior to be done different from 5
Disturb the corresponding opening of switch that 5 interference sources are identical in the induced electricity flow valuve and cycle T of the time measurement of the switch opening in source
Time measurement induced electricity flow valuve be compared with corresponding threshold range, confirm distribution network environment it is whether normal.
5 of power splitter by different power distributions to parallel connection are wherein controlled by control processor in step (4)
Interference source meets P1:P2:P3:P4:P5=1:0.8:0.5:0.3 particular by the way of different power ratios:
0.1, wherein P1, P2, P3, P4, P5 respectively indicate the performance number of 5 corresponding interference sources.
It should be noted that each device of the invention, step, parameter are made in the case where rational expectation,
It is any extreme or the case where do not meet technical solution of the present invention, all should it is reasonable it is expected in removal.
Although for illustrative purposes, it has been described that exemplary embodiments of the present invention, those skilled in the art
Member it will be understood that, can be in form and details in the case where the scope and spirit for not departing from invention disclosed in appended claims
On the change that carry out various modifications, add and replace etc., and all these changes all should belong to appended claims of the present invention
Protection scope, and each step in the claimed each department of product and method, can in any combination
Form is combined.Therefore, to disclosed in this invention the description of embodiment be not intended to limit the scope of the invention,
But for describing the present invention.Correspondingly, the scope of the present invention is not limited by embodiment of above, but by claim or
Its equivalent is defined.
Claims (9)
1. a kind of electric power environmental monitors system, including radiation transmitter, radiation receiver, microprocessor, induced current measurement list
Member, wherein radiation transmitter includes that control processor, power splitter, 5 interference sources of parallel connection and its switch, feature exist
In:
5 interference sources share a transmitting antenna；
Control processor, power splitter, 5 interference sources of parallel connection and its switch and transmitting antenna are sequentially connected, and radiation receives
Device includes that sequentially connected receiving antenna, converting unit, amplification filter unit and actinometry unit, microprocessor are separately connected
Actinometry unit and induced current measuring unit；
Control processor is used to control 5 interference sources of the power splitter by different power distributions to parallel connection, and controls respectively
The switch for making 5 interference sources is successively opened at regular intervals in cycle T, emits interference spoke by same transmitting antenna
Penetrate signal；
Receiving antenna receives the distribution network radiation signal from the interference source interference radiation signal emitted and superposition, through turning
It changes after unit, amplification filter unit and actinometry cell processing and radiation signal is sent to microprocessor；
Microprocessor is not all opened for controlling induced current measuring unit in cycle T in the switch for being different from 5 interference sources
The time fully open time corresponding with the switch of 5 interference sources is identical to carry out the measurement of induced electricity flow valuve respectively；
Microprocessor is also used to treated radiation signal, and the opening time in cycle T different from the switch of 5 interference sources is surveyed
The induced electricity flow valuve of the corresponding time measurement opened of switch of 5 interference sources is identical in the induced electricity flow valuve and cycle T of amount
It is compared with corresponding threshold range.
2. the system as claimed in claim 1, it is characterised in that: the cycle T is the period in fixed period or variation.
3. the system as claimed in claim 1, it is characterised in that: the transmitting antenna is multimodes emitting antenna.
4. the system as claimed in claim 1, it is characterised in that: the corresponding threshold range is the threshold range of setting.
5. the system as claimed in claim 1, it is characterised in that: the corresponding threshold range is normal by distribution network
Actual test obtains when work.
6. the system as claimed in claim 1, it is characterised in that: the frequency of the radiation interference signals of 5 interference sources transmitting is identical.
7. the system as claimed in claim 1, it is characterised in that: the frequency of the radiation interference signals of 5 interference sources transmitting is different.
8. a kind of electric power environmental monitoring method using the system as described in the claims 1-7 any one, feature exist
In in turn including the following steps:
(1) control processor control power splitter distributes preset equal-wattage to 5 interference sources of parallel connection, and controls 5
The switch of a interference source is successively opened with the time of interval 5s, emits interference radiation signal by transmitting antenna；Simultaneously with 5
The switch of interference source successively opening time identical time controls induced current measuring unit by microprocessor and successively measures pair
Answer the induced electricity flow valuve at moment；
(2) receiving antenna receives the distribution network radiation signal from the interference source interference radiation signal emitted and superposition,
Radiation signal is sent to microprocessor, microprocessor after converted unit, amplification filter unit and actinometry cell processing
The radiation signal being sequentially received and preset standard radiation signal are compared, if error less than 0.01, enters next
Step；
(3) microprocessor successively corresponds to the induced electricity flow valuve at moment to switch opening times and switch is not switched on time corresponding sense
Current value is answered to seek difference, if the error between difference calibrates success less than 0.01, into next step；
(4) 5 interference sources of the power splitter by different power distributions to parallel connection are controlled by control processor, and respectively
The switch for controlling 5 interference sources is successively opened in cycle T with interval 30s, emits interference radiation letter by same transmitting antenna
Number；
(5) receiving antenna receives the distribution network radiation signal from the interference source interference radiation signal emitted and superposition,
Radiation signal is sent to microprocessor after converted unit, amplification filter unit and actinometry cell processing；
(6) microprocessor control control induced current measuring unit does not all have in cycle T in the switch for being different from 5 interference sources
The time of the opening fully open time corresponding with the switch of 5 interference sources is identical to carries out the measurement of induced electricity flow valuve respectively；
(7) the radiation signal F measured in cycle T, induced electricity flow valuve G and corresponding cycle T are formed into three-dimensional array collection [F G；
T], and it is sent to remote monitoring center in real time, it is stored；
(8) remote control center is drawn radiation signal F and induced electricity flow valuve G time history plot respectively and is shown
Show, realizes long-range monitoring；
(9) at the end of each cycle T, radiation signal after being handled by microprocessor, cycle T is interior to be different from 5 interference sources
Switch the induced electricity flow valuve and cycle T of time measurement opened in be identical to 5 interference sources switch it is corresponding open when
Between the induced electricity flow valuve that measures be compared with corresponding threshold range, whether confirmation distribution network environment normal.
9. method according to claim 8, it is characterised in that: wherein control power splitter by control processor in step (4)
By 5 interference sources of different power distribution to parallel connection particular by the way of different power ratios, meet
P1:P2:P3:P4:P5=1:0.8:0.5:0.3:0.1, wherein P1, P2, P3, P4, P5 respectively indicate the function of 5 corresponding interference sources
Rate value.
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| CN106448099B (en) * | 2016-08-31 | 2019-09-06 | 国网山东省电力公司菏泽供电公司 | A kind of ring network cabinet running environment remote supervision system |
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| DE102005037472B4 (en) * | 2005-08-09 | 2019-03-28 | Conti Temic Microelectronic Gmbh | Method for detecting an electrical measurement signal in a temporary interference environment |
| EP2909948A4 (en) * | 2012-10-17 | 2016-10-05 | Ikanos Communications Inc | Method and apparatus for sensing noise signals in a wireline communications environment |
| CN103826300B (en) * | 2013-12-31 | 2018-08-28 | 吴志超 | Without base station indoor locating system |
| CN204517826U (en) * | 2015-04-24 | 2015-07-29 | 国网冀北电力有限公司电力科学研究院 | Short distance power communication micro power radio communication live channel environment simulator |
| CN104780011A (en) * | 2015-04-24 | 2015-07-15 | 国网冀北电力有限公司电力科学研究院 | Micro-power wireless communication site channel environment simulator for short-distance power communication |
| CN105222897A (en) * | 2015-09-10 | 2016-01-06 | 北京环境特性研究所 | A kind of metered dose high temp, infrared radiation origin system |
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| CN105807158A (en) * | 2016-03-11 | 2016-07-27 | 陕西天佑欣业自动化技术发展有限公司 | Electric power parameter online monitoring system and monitoring control method for power grid connection points and switches |
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