CN106226664A - Transformer station partial discharge signals detecting system - Google Patents
Transformer station partial discharge signals detecting system Download PDFInfo
- Publication number
- CN106226664A CN106226664A CN201610722863.9A CN201610722863A CN106226664A CN 106226664 A CN106226664 A CN 106226664A CN 201610722863 A CN201610722863 A CN 201610722863A CN 106226664 A CN106226664 A CN 106226664A
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- Prior art keywords
- arm
- radiation arm
- transformer station
- partial discharge
- radiation
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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
- G01R31/1227—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 of components, parts or materials
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Testing Relating To Insulation (AREA)
Abstract
The invention discloses a kind of transformer station partial discharge signals detecting system, it is characterised in that: include multi-channel data collection unit, data handling system and aerial array；Described multi-channel data collection unit is for gathering the local discharge signal that antenna array receiver arrives；The principle utilizing rain supply to have signal to discharge carries out catching mensuration rain supply position, improves reception antenna, is increased by the indices of antenna, it is achieved more highly sensitive detection.
Description
Technical field
The present invention relates to a kind of transformer station partial discharge signals detecting system.
Background technology
At present, insulation fault is one of major failure of being in operation of power equipment, before power equipment generation insulation fault,
Typically all can there is a shelf depreciation process gradually developed, and ultimately result in insulation breakdown.If can be right in this process
Operation equipment carries out partial discharge monitoring and diagnosis, finds local discharge signal in time, processes defect in advance, just can have
Effect avoids the generation of Fault of Insulating Breakdown.Additionally, the location to partial discharge position, it helps formulate more targeted inspection
Repair processing scheme, reduce power off time, improve overhaul efficiency.Therefore, electric power is all set by current lot of domestic and international researcher
Monitoring and the location of standby shelf depreciation are studied.Application No.: the patent of 2011101675994 discloses one and " becomes
Power station local discharge signal on-line monitoring and localization method ", it utilizes omnidirectional antenna to receive signal, thus calculates shelf depreciation
Positional information.But, owing to itself there is the biggest electric field impact near transformer station, and if needing to receive as antenna
Local discharge signal under highfield, it is necessary to this antenna have preferable emitting performance, such as its omni-directional and gain and
Front and back ratio is required to preferable electric property.
Summary of the invention
It is an object of the invention to overcome disadvantages described above, it is provided that a kind of transformer station partial discharge signals detection is
System.
For achieving the above object, the concrete scheme of the present invention is as follows: a kind of transformer station partial discharge signals detecting system, its
It is characterised by: include multi-channel data collection unit, data handling system and aerial array；Described multi-channel data acquisition
Unit is for gathering the local discharge signal that antenna array receiver arrives；
Described aerial array includes multiple microstrip antenna, and each described microstrip antenna includes the dielectric-slab of ellipse, described
The front of dielectric-slab is provided with two groups of microstrip elements, two groups of microstrip element settings symmetrical above and below；Often group microstrip element include two,
And symmetrical subelement.
Wherein, each subelement includes a feed tab for feed and the first radiation arm of arc；Described
It is connected by feeding microstrip line between one radiation arm and feed tab；Described first radiation arm away from dielectric-slab center while being provided with
Sector notch, described first radiation arm is near the semicircular indentations that is provided with at dielectric-slab center, and semicircular indentations is provided close to
On one side of something of feeding microstrip line；Also including arc the second radiation arm, described second radiation arm and the first radiation arm are arranged concentrically,
One end of described second radiation arm is connected with one end away from feeding microstrip line of the first radiation arm；Described second radiation arm is first-class
Arc length is provided with multiple fan beam arm, and each described fan beam arm is provided with hollow out radiating element, and the radiation of each hollow out is single
Unit is triangle, and the both sides of hollow out radiating element are all extended to the centre of hollow out radiating element four coupling radiation arms；From
The outer arc limit of fan beam arm is risen to inner arc limit number, first, the 3rd coupling radiation arm length less than second, the 4th
Individual；The reverse side of described dielectric-slab is provided with two groups of journey laterally zygomorphic micro-strip sector elements, and often group micro-strip sector element includes two
Individual symmetrical isolation sector arm.
Wherein, the quantity of the fan beam arm of each subelement is 4-6.
Wherein, if the distance between fan beam arm is L, the quantity of fan beam arm is N, the horizontal stroke of described feeding microstrip line
To a length of M, then M=L*0.8*N.
Wherein, the centre often organizing microstrip element is provided with the parasitic oscillator sheet of a T-shaped；
Wherein, each subelement includes a L-shaped spacer bar, and L-shaped spacer bar be arranged in parallel with corresponding feeding microstrip line；
Wherein, outer the placing on described medium is additionally provided with a circle isolation micro-strip arm；
Wherein, between described multi-channel data collection unit and aerial array, signal is connected wave filter, and described wave filter is used for
Filter the clutter of the signal that multi-channel data collection unit collects；
Wherein, also include communicator, described be connected with data handling system signal, for by the detection of data handling system
Signal sends in real time to the external world；
Wherein, also include the data storage cell being connected with data handling system signal, for by detection information real-time storage；
The invention have the benefit that the principle utilizing rain supply to have signal to discharge carries out catching and measure rain supply position, change
Enter reception antenna, the indices of antenna is increased, it is achieved more highly sensitive detection.
Accompanying drawing explanation
Fig. 1 is the schematic diagram of the present invention；
Fig. 2 is the front view of the microstrip antenna of the present invention；
Fig. 3 is the structural representation of the subelement of the present invention；
Fig. 4 is the partial enlarged drawing of Fig. 3；
Fig. 5 is the reverse view of the present invention；
Fig. 6 is the frequency range emulation testing figure of the microstrip antenna of the present invention；
Fig. 7 is the directional diagram of the microstrip antenna of the present invention；
Description of reference numerals in Fig. 1 to Fig. 7:
B1-dielectric-slab；B2-isolates micro-strip arm；B3-parasitism oscillator sheet；B4-L shape spacer bar；B5-feed tab；B6-first radiates
Arm；B61-semicircular indentations；B62-sector notch；B7-fan beam arm；B71-couples radiation arm；B8-the second radiation arm；b9-
Isolation sector arm.
Detailed description of the invention
The present invention is further detailed explanation with specific embodiment below in conjunction with the accompanying drawings, is not the reality of the present invention
The scope of executing is confined to this.
As shown in Figures 1 to 7, a kind of transformer station partial discharge signals detecting system described in the present embodiment, include many
Channel data collecting unit, data handling system and aerial array；Described multi-channel data collection unit is used for gathering antenna
The local discharge signal that array received arrives；Described multi-channel data collection unit for gather antenna array receiver to local put
The signal of telecommunication；Wave filter is for filtering the clutter of the signal that multi-channel data collection unit collects；According to Application No.:
The patent of 2011101675994 discloses one " transformer station partial discharge signals on-line monitoring and localization method ", passes through antenna
Receiving local discharge signal, by multi-channel data collection unit, signal is reached wave filter, wave filter is used for filtering multichannel
The clutter of the signal that data acquisition unit collects, data handling system is drawn after being calculated by the method introduced in above-mentioned patent
The accurate location of discharge source.
Described aerial array includes multiple microstrip antenna, and each described microstrip antenna includes the dielectric-slab of ellipse
B1, the front of described dielectric-slab b1 is provided with two groups of microstrip elements, two groups of microstrip element settings symmetrical above and below；Often group microstrip element bag
Two and symmetrical subelement are included.A kind of transformer station partial discharge signals detecting system described in the present embodiment, each
Subelement includes feed tab b5 for feed and the first radiation arm b6 of arc；Described first radiation arm b6 and feedback
Connected by feeding microstrip line between electricity sheet b5；Described first radiation arm b6 away from dielectric-slab b1 center while being provided with fan-shaped lacking
Mouth b62, described first radiation arm b6 set near be provided with the semicircular indentations b61, semicircular indentations b61 at dielectric-slab b1 center
In on one side of something of feeding microstrip line；Also include arc the second radiation arm b8, described second radiation arm b8 and the first radiation
Arm b6 is arranged concentrically, and one end of described second radiation arm b8 is connected with one end away from feeding microstrip line of the first radiation arm b6；
The described second first-class arc length of radiation arm b8 is provided with multiple fan beam arm b7, each described fan beam arm b7 and is provided with hollow out
Radiating element, each hollow out radiating element is triangle, and the both sides of hollow out radiating element are all prolonged to the centre of hollow out radiating element
It is extended with four coupling radiation arm b71；From the outer arc limit of fan beam arm b7 to inner arc limit number, first, the coupling of the 3rd
Close the length of radiation arm b71 less than second, the 4th；The reverse side of described dielectric-slab b1 is provided with two groups of laterally zygomorphic micro-strip of journey
Sector element, often group micro-strip sector element includes two symmetrical isolation sector arm b9.By rational radiating element
Design, improve radiation current, thus improve radiation characteristic.Designed by the microstrip circuit structure not less than 600 times, Yi Jitong
Crossing and be not less than under 600 l-G simulation tests and parameter adjustment, finally determine above-mentioned antenna structure, this antenna possesses wider frequency
Scope and preferably isolation and directivity and gain performance, possess preferable communication performance；In actual test, this antenna
Bandwidth available frequency range is up to 1.7GHz to 2.65GHz；Substantially meeting the requirement of communications band, its gain is the highest, frequency band
Interior average gain is more than 8.952dbi；Meet actually used needs；If additionally isolation in its isolation figure frequency band, isolation
Performance preferably, such as Fig. 6, can be seen that in S3 isolation is more than 25.5db in frequency range.Its directivity, such as Fig. 7
Described, it is omni-directional antenna.By changing its emission characteristics, improve the reception characteristic of signal.
A kind of transformer station partial discharge signals detecting system described in the present embodiment, the fan beam arm b7 of each subelement
Quantity be 4-6.
A kind of transformer station partial discharge signals detecting system described in the present embodiment, if the distance between fan beam arm b7
For L, the quantity of fan beam arm b7 is N, and the lateral length of described feeding microstrip line is M, then M=L*0.8*N.Meet this formula
After, its performance is most preferably embodied, and gain and direction are all preferable, and standing-wave ratio is close to 1.
A kind of transformer station partial discharge signals detecting system described in the present embodiment, the centre often organizing microstrip element is provided with
The parasitic oscillator sheet b3 of one T-shaped；Parasitic oscillator sheet b3 reduces isolation while can increasing gain
A kind of transformer station partial discharge signals detecting system described in the present embodiment, each subelement includes a L-shaped isolation
Bar b4, L-shaped spacer bar b4 be arranged in parallel with corresponding feeding microstrip line；
A kind of transformer station partial discharge signals detecting system described in the present embodiment, outer the placing on described medium is additionally provided with a circle
Isolation micro-strip arm b2.It can effectively strengthen isolation performance, improves the electric property of antenna
Between described multi-channel data collection unit and aerial array, signal is connected wave filter, and described wave filter is used for filtering many
The clutter of the signal that channel data collecting unit collects；
A kind of transformer station partial discharge signals detecting system described in the present embodiment, described multi-channel data collection unit and antenna
Between array, signal connects wave filter, and described wave filter is for filtering the miscellaneous of signal that multi-channel data collection unit collects
Ripple；A kind of transformer station partial discharge signals detecting system described in the present embodiment, also includes communicator, described with data at
Reason system signal connects, for sending the detectable signal of data handling system to the external world in real time；One described in the present embodiment
Transformer station partial discharge signals detecting system, also includes the data storage cell being connected with data handling system signal, is used for
By detection information real-time storage；A kind of transformer station partial discharge signals detecting system described in the present embodiment, on described pcb board also
It is provided with a circle shielding ring；For improving shielding properties.
The above is only a preferred embodiment of the present invention, therefore all according to the structure described in present patent application scope
Make, equivalence change that feature and principle are done or modify, be included in the protection domain of present patent application.
Claims (4)
1. a transformer station partial discharge signals detecting system, it is characterised in that: include multi-channel data collection unit, data
Processing system and aerial array；The shelf depreciation letter that described multi-channel data collection unit arrives for gathering antenna array receiver
Number；
Described aerial array includes multiple microstrip antenna, and each described microstrip antenna includes the dielectric-slab (b1) of ellipse,
The front of described dielectric-slab (b1) is provided with two groups of microstrip elements, two groups of microstrip element settings symmetrical above and below；Often group microstrip element bag
Two and symmetrical subelement are included；
The centre often organizing microstrip element is provided with the parasitic oscillator sheet (b3) of a T-shaped；Outer placing on described medium is additionally provided with one
Circle isolation micro-strip arm (b2)
Each subelement includes a L-shaped spacer bar (b4), and L-shaped spacer bar (b4) be arranged in parallel with corresponding feeding microstrip line；
Between described multi-channel data collection unit and aerial array, signal is connected wave filter, and described wave filter is used for filtering many
The clutter of the signal that channel data collecting unit collects；
Also include communicator, described be connected with data handling system signal, for by the detectable signal of data handling system
Send in real time to extraneous.
A kind of transformer station partial discharge signals detecting system the most according to claim 1, it is characterised in that: each subelement
Include a feed tab (b5) for feed and first radiation arm (b6) of arc；Described first radiation arm (b6) and feedback
Connected by feeding microstrip line between electricity sheet (b5)；Described first radiation arm (b6) away from dielectric-slab (b1) center while being provided with
Sector notch (b62), described first radiation arm (b6) is provided with semicircular indentations (b61) near dielectric-slab (b1) center,
Semicircular indentations (b61) is provided close on one side of something of feeding microstrip line；Also include arc the second radiation arm (b8), described second
Radiation arm (b8) is arranged concentrically with the first radiation arm (b6), one end of described second radiation arm (b8) and the first radiation arm (b6)
One end away from feeding microstrip line connects；The first-class arc length of described second radiation arm (b8) is provided with multiple fan beam arm (b7),
Each described fan beam arm (b7) is provided with hollow out radiating element, and each hollow out radiating element is triangle, and hollow out radiation is single
The both sides of unit are all extended to the centre of hollow out radiating element four couplings radiation arm (b71)；From fan beam arm (b7)
Outer arc limit is risen to inner arc limit number, first, the length of the coupling radiation arm (b71) of the 3rd is less than second, the 4th；Described
The reverse side of dielectric-slab (b1) is provided with two groups of journey laterally zygomorphic micro-strip sector elements, and often group micro-strip sector element includes two left sides
The isolation sector arm (b9) of right symmetry.
A kind of transformer station partial discharge signals detecting system the most according to claim 2, it is characterised in that: each subelement
The quantity of fan beam arm (b7) be 4-6.
A kind of transformer station partial discharge signals detecting system the most according to claim 2, it is characterised in that: set fan beam
Distance between arm (b7) is L, and the quantity of fan beam arm (b7) is N, and the lateral length of described feeding microstrip line is M, then M=
L*0.8*N。
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610722863.9A CN106226664A (en) | 2016-08-25 | 2016-08-25 | Transformer station partial discharge signals detecting system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610722863.9A CN106226664A (en) | 2016-08-25 | 2016-08-25 | Transformer station partial discharge signals detecting system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106226664A true CN106226664A (en) | 2016-12-14 |
Family
ID=57554934
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610722863.9A Withdrawn CN106226664A (en) | 2016-08-25 | 2016-08-25 | Transformer station partial discharge signals detecting system |
Country Status (1)
| Country | Link |
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| CN (1) | CN106226664A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2018028208A1 (en) * | 2016-08-06 | 2018-02-15 | 李少军 | Microstrip antenna having l-shaped insulation bar |
| WO2018028207A1 (en) * | 2016-08-06 | 2018-02-15 | 李少军 | Microstrip antenna |
-
2016
- 2016-08-25 CN CN201610722863.9A patent/CN106226664A/en not_active Withdrawn
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2018028208A1 (en) * | 2016-08-06 | 2018-02-15 | 李少军 | Microstrip antenna having l-shaped insulation bar |
| WO2018028207A1 (en) * | 2016-08-06 | 2018-02-15 | 李少军 | Microstrip antenna |
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| PB01 | Publication | ||
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| SE01 | Entry into force of request for substantive examination | ||
| WW01 | Invention patent application withdrawn after publication | ||
| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20161214 |
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| DD01 | Delivery of document by public notice | ||
| DD01 | Delivery of document by public notice |
Addressee: Ling Qifang Document name: Notification of Approving Refund |