CN106291279A - A kind of system and method eliminating external disturbance based on omnidirectional's UHF noise transducer - Google Patents
A kind of system and method eliminating external disturbance based on omnidirectional's UHF noise transducer Download PDFInfo
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- CN106291279A CN106291279A CN201610629719.0A CN201610629719A CN106291279A CN 106291279 A CN106291279 A CN 106291279A CN 201610629719 A CN201610629719 A CN 201610629719A CN 106291279 A CN106291279 A CN 106291279A
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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
- G01R31/12—Testing dielectric strength or breakdown voltage ; Testing or monitoring effectiveness or level of insulation, e.g. of a cable or of an apparatus, for example using partial discharge measurements; Electrostatic testing
- G01R31/1209—Testing dielectric strength or breakdown voltage ; Testing or monitoring effectiveness or level of insulation, e.g. of a cable or of an apparatus, for example using partial discharge measurements; Electrostatic testing using acoustic measurements
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- Testing Relating To Insulation (AREA)
Abstract
The present invention proposes a kind of system and method eliminating external disturbance based on omnidirectional's UHF noise transducer.Described system includes omnidirectional's UHF noise transducer, and it receives GIS external signal for omnirange；Signal transducer, it is for receiving the local discharge signal of GIS built-in electrical insulation defect；Shelf depreciation collecting unit, it is used for amplifying and change local discharge signal and GIS external signal；And host computer, it judges GIS external signal attribute according to decision principle, and carries out when it is for interference signal processing to eliminate interference signal.Described omnidirectional UHF noise transducer includes: conical spiral antenna Slab element, and it is made up of conical spiral antenna and base plate, receives GIS external signal for omnirange；Frock unit, it is made up of epoxy antenna house and Bottom packaging part, is used for encapsulating described conical spiral antenna Slab element；And N Connector, it is positioned at frock unit bottom center, transmits to shelf depreciation collecting unit for the GIS external signal that will receive.
Description
Technical field
The present invention relates to partial-discharge ultrahigh-frequency and detect jamproof technical field, and more particularly, to a kind of base
The system and method for external disturbance is eliminated in omnidirectional's superfrequency UHF (Ultra High Frequency) noise transducer.
Background technology
Cubicle Gas-Insulated Switchgear (GIS, Gas Insulated Switchgear) is the weight of grid equipment
Want ingredient.GIS quantity is big, and is widely used in urban distribution network.GIS compact conformation, and to internal small insulation
Defect is very sensitive, is therefore easily caused the major accident of insulation breakdown.Generally, the conventional tour for GIS cannot be effective
The operation conditions of solution equipment, this is because the totally-enclosed property of GIS.The site examining and repairing environmental requirement of GIS is high, and dismounting workload is big,
Power off time length and overhaul somewhat expensive.The non-maintaining operation of GIS is limited to about 15 years in year, the time the biggest portion broken down
Office is in time just putting into operation or when closing on the life-span.China has a large amount of new GIS to put into operation every year, has some GIS to reach the most successively
The non-maintaining operation time limit to regulation.How to ensure the safe operation of these equipment, avoid unnecessary interruption maintenance simultaneously, joint
Saving maintenance expense, this is the major issue faced during GIS runs.
The popularization and application of UHF shelf depreciation online measuring technique are for the health status of anticipation GIS, it is to avoid electrical network is great to be set
The generation of standby accident, and ensure the safe operation of GIS, improve overhaul of the equipments and maintenance efficiency has positive meaning and good
Economic results in society.Additionally, UHF shelf depreciation online measuring technique is also widely used for power transformer, electric power electricity at present
Partial discharge detection/the monitoring of the high voltage electric equipments such as cable.
But, the energy that the omnidirectional of signal is received by the detection device used in existing shelf depreciation UHF online measuring technique
Power is more weak, it is impossible to realizes the effective of the signal to on-the-spot all directions and receives, the most at the scene cannot be effective during actual measurement
Suppression external interference signals.
In summary, the receiving directivity of the detection device used in shelf depreciation UHF online measuring technique and detection frequency
Band scope is most important to this anti-interference mode, only uses the detection device of excellent performance and carries out and signal transducer
Reasonable disposition, just can give full play of the effect of this anti-interference method.
Summary of the invention
In order to solve the problems referred to above, the present invention propose a kind of based on what omnidirectional UHF noise transducer eliminated external disturbance be
System and method.Described system includes:
Omnidirectional's UHF noise transducer, it receives GIS external signal for omnirange；
Signal transducer, it is for receiving the local discharge signal of GIS built-in electrical insulation defect；
Shelf depreciation collecting unit, it is used for amplifying and change local discharge signal and GIS external signal；And
Host computer, it is according to decision principle judgement GIS external signal attribute, and when GIS external signal is for interference signal
Carry out processing to eliminate interference signal.
Preferably, described decision principle includes:
If signal transducer is Tong Bu with the signal that noise transducer receives and the signal of signal transducer is more than or equal to making an uproar
The signal of sonic transducer, mobile noise transducer, away from equipment under test, if the signal of noise transducer diminishes, then judges that this believes
Number it is equipment under test internal discharge signal, if the signal of noise transducer becomes size that is big and that exceed signal transducer signal,
Then it is judged to external interference signals；And
If signal transducer is Tong Bu with the signal that noise transducer receives and the signal of signal transducer passes less than noise
The signal of sensor, mobile noise transducer is away from equipment under test, if the signal of noise transducer diminishes and is less than sensing
The signal of device, then judge that this signal, as equipment under test internal discharge signal, if the signal of noise transducer becomes big, is judged to
External interference signals.
According to an aspect of the present invention, described omnidirectional UHF noise transducer includes:
Conical spiral antenna Slab element, it is made up of conical spiral antenna and base plate, receives the outside letter of GIS for omnirange
Number；
Frock unit, it is made up of epoxy antenna house and Bottom packaging part, is used for encapsulating described conical spiral antenna list
Unit；And
N Connector, it is positioned at frock unit bottom center, by being connected with conical spiral antenna Slab element, will receive
GIS external signal transmit to shelf depreciation collecting unit.
Preferably, the detection frequency band range of described omnidirectional UHF noise transducer is 300MHz to 2GHz, standing-wave ratio is less than
It is-30dB to 6dB in 3 and antenna gain.
Preferably, the frock unit in omnidirectional UHF noise transducer has waterproof and dustproof performance.
According to a further aspect in the invention, described method based on omnidirectional's UHF noise transducer elimination external disturbance includes:
It is arranged on inside GIS by embedded for signal transducer, for receiving the local discharge signal of GIS built-in electrical insulation defect；
Being placed around omnidirectional's UHF noise transducer at each signal transducer, described omnidirectional UHF noise transducer is used
In receiving GIS external signal；
Shelf depreciation collecting unit is used to amplify and change local discharge signal and GIS external signal near GIS；And
Host computer judges GIS external signal attribute according to decision principle, and carries out when GIS external signal is for interference signal
Process to eliminate interference signal.
Preferably, described decision principle is as follows:
If signal transducer is Tong Bu with the signal that noise transducer receives and the signal of signal transducer is more than or equal to making an uproar
The signal of sonic transducer, mobile noise transducer, away from equipment under test, if the signal of noise transducer diminishes, then judges that this believes
Number it is equipment under test internal discharge signal, if the signal of noise transducer becomes size that is big and that exceed signal transducer signal,
Then it is judged to external interference signals；And
If signal transducer is Tong Bu with the signal that noise transducer receives and the signal of signal transducer passes less than noise
The signal of sensor, mobile noise transducer is away from equipment under test, if the signal of noise transducer diminishes and is less than sensing
The signal of device, then judge that this signal, as equipment under test internal discharge signal, if the signal of noise transducer becomes big, is judged to
External interference signals.
Accompanying drawing explanation
By reference to the following drawings, the illustrative embodiments of the present invention can be more fully understood by.
Fig. 1 shows the system eliminating external disturbance based on omnidirectional's UHF noise transducer according to embodiment of the present invention
In-site installation schematic diagram；
Fig. 2 shows the object construction figure of the omnidirectional's UHF noise transducer according to embodiment of the present invention
Fig. 3 shows the component structural figure of the omnidirectional's UHF noise transducer according to embodiment of the present invention.
Fig. 4 shows another component structural figure of the omnidirectional's UHF noise transducer according to embodiment of the present invention.
Fig. 5 shows the directional diagram at 500MHz of the omnidirectional's UHF noise transducer according to embodiment of the present invention；
Fig. 6 shows the directional diagram at 750MHz of the omnidirectional's UHF noise transducer according to embodiment of the present invention；
Fig. 7 shows the directional diagram at 1GHz of the omnidirectional's UHF noise transducer according to embodiment of the present invention；
Fig. 8 shows the directional diagram at 1.5GHz of the omnidirectional's UHF noise transducer according to embodiment of the present invention；
Fig. 9 shows the directional diagram at 2GHz of the omnidirectional's UHF noise transducer according to embodiment of the present invention；
Figure 10 shows that the omnidirectional's UHF noise transducer according to embodiment of the present invention is at 300MHz-2GHz frequency band range
Interior voltage standing wave ratio test result figure；
Figure 11 shows the antenna gain table of the omnidirectional's UHF noise transducer according to embodiment of the present invention；
Figure 12 shows the method eliminating external disturbance based on omnidirectional's UHF noise transducer according to embodiment of the present invention
Flow chart.
Detailed description of the invention
With reference now to accompanying drawing, introduce the illustrative embodiments of the present invention.The present invention can come real by many different forms
Execute, and be not limited to embodiment described herein, it is provided that these embodiments are at large and fully disclose the present invention,
And the scope of the present invention is fully passed on to person of ordinary skill in the field.For representing exemplary enforcement in the accompanying drawings
Term in mode is not limitation of the invention.In the accompanying drawings, identical cells/elements uses identical reference.
Except as otherwise noted, person of ordinary skill in the field is had by term used herein (including scientific and technical terminology)
Common understand implication.Further it will be understood that the term limited with normally used dictionary, it should it is understood to and it
The linguistic context of association area has consistent implication, and is not construed as Utopian or the most formal meaning.
Fig. 1 is showing of the system based on omnidirectional's UHF noise transducer elimination external disturbance according to embodiment of the present invention
Field scheme of installation.As it is shown in figure 1, the signal in site environment is examined by system 100 based on omnidirectional's UHF noise transducer
Survey, to eliminate external interference signals.According to the preferred embodiment of the present invention, system 100 includes omnidirectional's UHF noise transducer
101, signal transducer 102, shelf depreciation collecting unit 103 and host computer 104.
Preferably, omnidirectional's UHF noise transducer 101, receive GIS external signal for omnirange.
Preferably, signal transducer 102 is for receiving the local discharge signal of GIS built-in electrical insulation defect.
Preferably, shelf depreciation collecting unit 103 is used for amplifying and change local discharge signal and GIS external signal.
Preferably, host computer 104 judges GIS external signal attribute according to decision principle.According to preferred implementation, described
Decision principle includes: if Tong Bu with the signal that noise transducer receives and signal transducer the signal of signal transducer is more than
In the signal of noise transducer, mobile noise transducer, away from equipment under test, if the signal of noise transducer diminishes, then judges
This signal is equipment under test internal discharge signal, if the signal of noise transducer becomes big and exceedes the big of signal transducer signal
Little, then it is judged to external interference signals；And if signal transducer is Tong Bu with the signal that noise transducer receives and signal passes
The signal of sensor is less than the signal of noise transducer, and mobile noise transducer is away from equipment under test, if the letter of noise transducer
Number diminish and less than the signal of signal transducer, then judge this signal as equipment under test internal discharge signal, if noise sensing
The signal of device becomes and is then judged to external interference signals greatly.When according to decision principle, host computer 104 determines that GIS external signal is for interference
During signal, utilize the software of host computer 104 to process, eliminate interference signal.
Fig. 2 is the object construction figure of the omnidirectional's UHF noise transducer 101 according to embodiment of the present invention.As in figure 2 it is shown,
Described omnidirectional UHF noise transducer 101 is from the appearance cone-type spiral structure, it include conical spiral antenna Slab element 201,
Frock unit 202 and N Connector 203.Fig. 3 and Fig. 4 is the omnidirectional's UHF noise transducer 101 according to embodiment of the present invention
Component structural figure.Understanding in conjunction with Fig. 2, Fig. 3 and Fig. 4, the structure of described omnidirectional UHF noise transducer is as follows.
Preferably, conical spiral antenna Slab element 201 is made up of, for omnirange conical spiral antenna 211 and base plate 212
Receive GIS external signal.
Preferably, frock unit 202 is made up of epoxy antenna house 221 and Bottom packaging part 222, is used for encapsulating described cone
Shape helical antenna elements 201.Owing to frock unit 202 is enclosed construction, therefore there is good waterproof and dustproof performance.
Preferably, N Connector, its be positioned at frock unit bottom center, by with conical spiral antenna Slab element 201 phase
Even, the GIS external signal received is transmitted to shelf depreciation collecting unit 103.
Fig. 5-9 be omnidirectional's UHF noise transducer according to embodiment of the present invention 500MHz, 750MHz, 1GHz,
The directional diagram of these 5 frequencies of 1.5GHz and 2GHz.As shown in figures 5-9, described omnidirectional UHF noise transducer preferably achieves entirely
Direction receives the function of external signal.
Figure 10 is the electricity in 300MHz-2GHz frequency band range of the omnidirectional's UHF noise transducer according to embodiment of the present invention
Pressure standing-wave ratio test result figure.As shown in Figure 10, it is preferable that the standing-wave ratio of omnidirectional's UHF noise sensing is less than or equal to 3.
Figure 11 is the antenna gain table of the omnidirectional's UHF noise transducer according to embodiment of the present invention.As shown in figure 11, excellent
Selection of land, the antenna gain of omnidirectional's UHF noise transducer is-30dB to 6dB.
Figure 12 is the method 1200 eliminating external disturbance based on omnidirectional's UHF noise transducer according to embodiment of the present invention
Flow chart.
As shown in figure 12, described method 1200 is from the beginning of step 1201.Preferably, in step 1201, by omnidirectional's UHF noise
Sensor 101 and signal transducer 102 are installed according to the configuration of to, will signal transducer 102 is embedded is arranged on
GIS, for receiving the local discharge signal of GIS built-in electrical insulation defect, is then placed around one at each signal transducer 102
Omnidirectional's UHF noise transducer 101, is used for receiving GIS external signal.
Preferably, in step 1202, gather omnidirectional UHF make an uproar by being placed on the shelf depreciation collecting unit 103 near GIS
Sonic transducer 101 and the GIS external signal of signal transducer 102 synchronous driving and local discharge signal, and by above-mentioned signal
It is amplified and changes.
Preferably, in step 1203, host computer 104 judges GIS external signal attribute according to decision principle.
Described decision principle includes: if signal transducer is Tong Bu with the signal that noise transducer receives and signal transducer
Signal more than or equal to the signal of noise transducer, mobile noise transducer is away from equipment under test, if the letter of noise transducer
Number diminish, then judge this signal as equipment under test internal discharge signal, if the signal of noise transducer becomes big and exceedes signal
The size of sensor signal, then be judged to external interference signals；And if the letter that signal transducer receives with noise transducer
Number synchronize and the signal of signal transducer be less than the signal of noise transducer, mobile noise transducer away from equipment under test, if
The signal of noise transducer diminishes and is less than the signal of signal transducer, then judge that this signal is believed as equipment under test internal discharge
Number, if the signal of noise transducer becomes big, it is judged to external interference signals.
If judging that GIS external signal, as external interference signals, skips to step 1204 according to decision principle.If it is former according to judging
Then judge that GIS external signal is not external interference signals, skips to step 1202.
Preferably, the software in step 1204, host computer 104 carries out processing to eliminate interference signal.
Normally, all terms used in the claims are all solved in the usual implication of technical field according to them
Release, unless additionally defined clearly wherein.All of reference " one/described/be somebody's turn to do [device, assembly etc.] " is all opened ground
It is construed at least one example in described device, assembly etc., unless otherwise expressly specified.Any method disclosed herein
Step all need not be run, unless explicitly stated otherwise with disclosed order accurately.
Claims (10)
1. eliminate a system for external disturbance based on omnidirectional's UHF noise transducer, described system includes:
Omnidirectional's UHF noise transducer, it receives GIS external signal for omnirange；
Signal transducer, it is for receiving the local discharge signal of GIS built-in electrical insulation defect；
Shelf depreciation collecting unit, it is used for amplifying and change local discharge signal and GIS external signal；And
Host computer, it judges GIS external signal attribute according to decision principle, and carries out when GIS external signal is for interference signal
Process to eliminate interference signal.
System the most according to claim 1, wherein said decision principle includes:
If signal transducer is Tong Bu with the signal that noise transducer receives and the signal of signal transducer passes more than or equal to noise
The signal of sensor, mobile noise transducer is away from equipment under test, if the signal of noise transducer diminishes, then judge this signal as
Equipment under test internal discharge signal, if the signal of noise transducer becomes size that is big and that exceed signal transducer signal, then sentences
It is set to external interference signals；And
If signal transducer is Tong Bu with the signal that noise transducer receives and the signal of signal transducer is less than noise transducer
Signal, mobile noise transducer is away from equipment under test, if the signal of noise transducer diminishes and less than signal transducer
Signal, then judge that this signal, as equipment under test internal discharge signal, if the signal of noise transducer becomes big, is judged to outside
Interference signal.
System the most according to claim 1, wherein, described omnidirectional UHF noise transducer includes:
Conical spiral antenna Slab element, it is made up of conical spiral antenna and base plate, receives GIS external signal for omnirange；
Frock unit, it is made up of epoxy antenna house and Bottom packaging part, is used for encapsulating described conical spiral antenna unit；With
And
N Connector, it is positioned at frock unit bottom center, by being connected, the GIS that will receive with conical spiral antenna Slab element
External signal is transmitted to shelf depreciation collecting unit.
System the most according to claim 3, wherein, the detection frequency band range of described omnidirectional UHF noise transducer is
300MHz to 2GHz, standing-wave ratio are less than or equal to 3 and antenna gain is-30dB to 6dB.
System the most according to claim 3, wherein, described frock unit has waterproof and dustproof performance.
6. the method eliminating external disturbance based on omnidirectional's UHF noise transducer, described method includes:
It is arranged on inside GIS by embedded for signal transducer, for receiving the local discharge signal of GIS built-in electrical insulation defect；
Being placed around omnidirectional's UHF noise transducer at each signal transducer, described omnidirectional UHF noise transducer is used for connecing
Receive GIS external signal；
Shelf depreciation collecting unit is used to amplify and change local discharge signal and GIS external signal near GIS；And
Host computer judges GIS external signal attribute according to decision principle, and processes when GIS external signal is for interference signal
To eliminate interference signal.
Method the most according to claim 6, wherein said decision principle is as follows:
If signal transducer is Tong Bu with the signal that noise transducer receives and the signal of signal transducer passes more than or equal to noise
The signal of sensor, mobile noise transducer is away from equipment under test, if the signal of noise transducer diminishes, then judge this signal as
Equipment under test internal discharge signal, if the signal of noise transducer becomes size that is big and that exceed signal transducer signal, then sentences
It is set to external interference signals；And
If signal transducer is Tong Bu with the signal that noise transducer receives and the signal of signal transducer is less than noise transducer
Signal, mobile noise transducer is away from equipment under test, if the signal of noise transducer diminishes and less than signal transducer
Signal, then judge that this signal, as equipment under test internal discharge signal, if the signal of noise transducer becomes big, is judged to outside
Interference signal.
Method the most according to claim 6, wherein, described omnidirectional UHF noise transducer includes:
Conical spiral antenna Slab element, it is made up of conical spiral antenna and base plate, receives GIS external signal for omnirange；
Frock unit, it is made up of epoxy antenna house and Bottom packaging part, is used for encapsulating described conical spiral antenna unit；With
And
N Connector, it is positioned at frock unit bottom center, by being connected, the GIS that will receive with conical spiral antenna Slab element
External signal is transmitted to shelf depreciation collecting unit.
Method the most according to claim 8, wherein, the detection frequency band range of described omnidirectional UHF noise transducer is
300MHz to 2GHz, standing-wave ratio are less than or equal to 3 and antenna gain is-30dB to 6dB.
Method the most according to claim 8, wherein, described frock unit has waterproof and dustproof performance.
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| CN201610629719.0A CN106291279A (en) | 2016-08-03 | 2016-08-03 | A kind of system and method eliminating external disturbance based on omnidirectional's UHF noise transducer |
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| CN201610629719.0A CN106291279A (en) | 2016-08-03 | 2016-08-03 | A kind of system and method eliminating external disturbance based on omnidirectional's UHF noise transducer |
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| CN108680841A (en) * | 2018-06-26 | 2018-10-19 | 广西电网有限责任公司电力科学研究院 | A kind of Operation Condition of Power Transformers comprehensive monitor system |
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| CN108680841A (en) * | 2018-06-26 | 2018-10-19 | 广西电网有限责任公司电力科学研究院 | A kind of Operation Condition of Power Transformers comprehensive monitor system |
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