CN105116289A - Substation partial discharge signal detection apparatus - Google Patents
Substation partial discharge signal detection apparatus Download PDFInfo
- Publication number
- CN105116289A CN105116289A CN201510527874.7A CN201510527874A CN105116289A CN 105116289 A CN105116289 A CN 105116289A CN 201510527874 A CN201510527874 A CN 201510527874A CN 105116289 A CN105116289 A CN 105116289A
- Authority
- CN
- China
- Prior art keywords
- micro
- discharge signal
- office
- unit
- transformer station
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Landscapes
- Waveguide Aerials (AREA)
Abstract
The invention discloses a substation partial discharge signal detection apparatus. The apparatus comprises a multichannel data acquisition unit, a filter, a data processing system, and an antenna array, the multichannel data acquisition unit is used for acquiring partial discharge signals received by the antenna array, the filter is used for filtering clutters of the signals acquired by the multichannel data acquisition unit, the antenna array comprises a plurality of microstrip antennas, each microstrip antenna comprises a dielectric plate layer and a microstrip oscillator arranged on the front surface of the dielectric plate layer, and the microstrip oscillator comprises a feed coupling sheet and two groups of microstrip units arranged in symmetry in the vertical direction. According to the apparatus, the principle that a leakage power supply releases signals is employed to capture and measure the position of the leakage power supply, a reception antenna is improved, various indexes of the antenna are increased, and the detection with higher sensitivity is realized.
Description
Technical field
The present invention relates to office of transformer station discharge signal pick-up unit.
Background technology
At present, insulation fault is one of major failure of being in operation of power equipment, before power equipment generation insulation fault, generally all can have a shelf depreciation process developed gradually, and finally cause insulation breakdown.If can carry out partial discharge monitoring and diagnosis to operational outfit in this process, Timeliness coverage local discharge signal, processes defect in advance, just effectively can avoid the generation of Fault of Insulating Breakdown.In addition, to the location of partial discharge position, also contribute to formulating overhaul plan scheme more targetedly, reduce power off time, improve overhaul efficiency.Therefore, current lot of domestic and international researcher is all studied the monitoring of the shelf depreciation of power equipment and location.Application number is: 2011101675994 patent discloses one " transformer station partial discharge signals on-line monitoring and localization method ", it utilizes omnidirectional antenna Received signal strength, thus calculates the positional information of shelf depreciation.But, because near transformer station, itself exists very large electric field influence, if and need to receive the local discharge signal under highfield as antenna, this has good performance in directional performance just to need this antenna, by practice, this antenna general when local discharge signal receive frequency in 700-1000MHz frequency range, thus transmit frequency band also should 700-1000MHz frequency range, therefore, need the electric property of antenna, i.e. emitting performance, such as its omni-directional and gain and front and back are than all requiring good electric property.
Summary of the invention
The object of the invention is to overcome above-described shortcoming, provide a kind of omni-directional and gain and front and back to have good electric property than all, thus the antenna of preferably electric property can be had when applied in reverse and Received signal strength.
For achieving the above object, concrete scheme of the present invention is as follows: office of transformer station discharge signal pick-up unit, includes multi-channel data collection unit, wave filter, data handling system and aerial array;
The local discharge signal that described multi-channel data collection unit arrives for gathering antenna array receiver; Wave filter is used for the clutter of the signal that filtering multi-channel data collection unit collects; Described aerial array includes multiple microstrip antenna, and each described microstrip antenna includes medium flaggy, is located at the micro-strip oscillator in medium flaggy front.Described micro-strip oscillator includes feed coupling piece, the laterally zygomorphic two groups of microstrip elements of journey; Often organize microstrip element include two structures identical, micro-band subelement of being arranged side by side; Connected by feed line between two the micro-band subelements often organizing microstrip element; Each described micro-band subelement includes a three-back-shaped micro-zone circle, and four inner edges of described micro-zone circle all extend internally out micro-armed of P font, and the quantity of micro-armed that each limit extends internally out is four, and every two is one group, and two groups symmetrical in center line; Described each micro-armed is provided with the projection of arc; Be provided with rectangle first parasitic patch in each described micro-zone circle, the side of the first parasitic patch is provided with sawtooth, and the radiation that opposite side is provided with multiple journey rectangle refers to; Be provided with annular second parasitic patch in each described micro-zone circle, the center ring of described second parasitic oscillator sheet is identical with the reverse side of medium flaggy, and the center ring often organizing two the second parasitic oscillator sheets of microstrip element is electrically connected at the reverse side of medium flaggy.Described micro-zone circle is square.Distance between described radiation refers to is between 1-2mm.The quantity that described radiation refers to is between 12-20.The line thickness of described micro-armed is 2-5mm.The center ring often organizing two the second parasitic oscillator sheets of microstrip element is connected by feed line at the reverse side of medium flaggy.The center ring often organizing two the second parasitic oscillator sheets of microstrip element is provided with isolating bar between the reverse side and the center ring of two other the second parasitic oscillator sheet of medium flaggy.The diameter of the second parasitic patch is 3mm.The width on described micro-zone circle limit is at 1mm.The edge of described medium flaggy is provided with shielding enclosure; Two sides of described medium flaggy are provided with multiple circumferential notch; Also include the parasitic oscillator sheet of the isolation being located at medium flaggy front;
Beneficial effect of the present invention is: the principle utilizing rain supply to have signal to discharge is carried out seizure and measured rain supply position, improves receiving antenna, is increased by the indices of antenna, realize more highly sensitive detection.
Accompanying drawing explanation
Fig. 1 is the front schematic view of medium flaggy of the present invention;
Fig. 2 is the reverse side schematic diagram of medium flaggy of the present invention;
Fig. 3 be when frequency is 700MHZ before and after the experimental data figure of ratio;
Fig. 4 be when frequency is 890MHZ before and after the experimental data figure of ratio;
Fig. 5 be when frequency is 1000MHZ before and after the experimental data figure of ratio;
Fig. 6 is the directional diagram representing gain when frequency is 700MHZ;
Fig. 7 is the directional diagram representing gain when frequency is 890MHZ;
Fig. 8 is the directional diagram representing gain when frequency is 1000MHZ;
Description of reference numerals in Fig. 1 to Fig. 8:
1-medium flaggy; The micro-zone circle of 2-; The micro-armed of 3-; The parasitic oscillator sheet of 4-second; 5-first parasitic patch; 6-isolates parasitic oscillator sheet; 7-isolating bar.
Embodiment
Below in conjunction with the drawings and specific embodiments, the present invention is further detailed explanation, is not practical range of the present invention is confined to this.
As shown in Figures 1 to 8, office of the transformer station discharge signal pick-up unit described in the present embodiment, includes multi-channel data collection unit, wave filter, data handling system and aerial array;
The local discharge signal that described multi-channel data collection unit arrives for gathering antenna array receiver; Wave filter is used for the clutter of the signal that filtering multi-channel data collection unit collects; Described aerial array includes multiple microstrip antenna, and each described microstrip antenna includes medium flaggy 1, is located at the micro-strip oscillator in medium flaggy 1 front.Wherein, described micro-strip oscillator includes feed coupling piece, the laterally zygomorphic two groups of microstrip elements of journey; Often organize microstrip element include two structures identical, micro-band subelement of being arranged side by side; Connected by feed line between two the micro-band subelements often organizing microstrip element; Each described micro-band subelement includes a three-back-shaped micro-zone circle 2, and four inner edges of described micro-zone circle 2 all extend internally out micro-armed 3 of P font, and the quantity of micro-armed 3 that each limit extends internally out is four, and every two is one group, and two groups symmetrical in center line; Described each micro-armed 3 is provided with the projection of arc; The side being provided with rectangle first parasitic patch 5, first parasitic patch 5 in each described micro-zone circle 2 is provided with sawtooth, and the radiation that opposite side is provided with multiple journey rectangle refers to; Be provided with annular second parasitic patch in each described micro-zone circle 2, the center ring of described second parasitic oscillator sheet 4 is identical with the reverse side of medium flaggy 1, and the center ring often organizing two the second parasitic oscillator sheets 4 of microstrip element is electrically connected at the reverse side of medium flaggy 1.
By continuous microstrip circuit structural design, and by under continuous test and parameter adjustment, finally determine above-mentioned antenna structure, excellent communication electric parameter performance is all shown in 700MHZ to 1000MHZ frequency range, concrete, than being greater than 30dB before and after the minimum frequency of radiating element, before and after in frequency band, be greater than 32dB than on average; Low frequency dot gains is greater than 9.37dBi, and in frequency band, average gain is greater than 9.8dBi.
Concrete actual test result such as following table HFSS15 software calculates:
As shown above, it all shows excellent communication electric parameter performance in 700MHz to 1000MHz frequency range, concrete, is greater than 31dB before and after the minimum frequency of single radiating element than all, at 950MHz, than being 35.232dB before and after the minimum frequency of single radiating element; And low frequency dot gains is all greater than 9.35dBi, in frequency band, average gain is greater than 9.8dBi.
From experimental data, specifically intercept the gain data figure of front and back than data plot and three frequency ranges of three frequency ranges, as Fig. 3 to Fig. 8, achieve excellent front and back ratio characteristic at 700MHz to 1000MHz, wherein, when 700MHz, as Fig. 3, than being 31.225dB before and after in its frequency band; When 890MHz, as Fig. 4, than being 33.313dB before and after in its frequency band; When 950MHz, as Fig. 5, than being 36.000dB before and after in its frequency band; And the performance in gain: as Fig. 6, it is when 700MHz, and its gain reaches: 9.3521dBi; As Fig. 7, it is when 890MHz, and its gain reaches: 9.7550dBi; As Fig. 8, it is when 1000MHz, and its gain reaches: 10.200dBi; Can learn, than being greater than 33dB before and after in it is average, its gain is on average greater than 9.8dBi.
Therefore, as receiving antenna, reverse performance requirement is also higher, therefore the reverse performance of this structural antenna is very excellent, gain all at more than 9.3dBi, under meeting highfield, to the request for utilization of 700MHz to 1000MHz frequency range, stable performance, measuring accuracy improves greatly.
Office of transformer station discharge signal pick-up unit described in the present embodiment, described micro-zone circle 2 is square.Its length of side 20-30mm.By experiment and software emulation learn, so arrange and effectively can improve the standing wave of the HFS in a period of time thus the overall frequency scope in broadening a period of time.
Office of transformer station discharge signal pick-up unit described in the present embodiment, the distance between described radiation refers to is between 1-2mm.
Office of transformer station discharge signal pick-up unit described in the present embodiment, the quantity that described radiation refers to is between 12-20.By experiment and software emulation learn, so arrange and effectively can improve the standing wave of the HFS in a period of time thus the overall frequency scope in broadening a period of time.
Office of transformer station discharge signal pick-up unit described in the present embodiment, the line thickness of described micro-armed 3 is 2-5mm.By experiment and software emulation learn, so arrange and effectively can improve the standing wave of the HFS in a period of time thus the overall frequency scope in broadening a period of time.
Office of transformer station discharge signal pick-up unit described in the present embodiment, the center ring often organizing two the second parasitic oscillator sheets 4 of microstrip element is connected by feed line at the reverse side of medium flaggy 1.
Office of transformer station discharge signal pick-up unit described in the present embodiment, the center ring often organizing two the second parasitic oscillator sheets 4 of microstrip element is provided with isolating bar 7 between the reverse side and the center ring of two other the second parasitic oscillator sheet 4 of medium flaggy 1.Isolating bar 7 can increase isolation, places two center ring interference of bottom surface.
Office of transformer station discharge signal pick-up unit described in the present embodiment, the diameter of the second parasitic patch is 3mm.Arrange parasitic oscillator sheet etc. and greatly can simplify oscillator structure, cost is lower, and anti-interference is stronger, improves the impedance operator of oscillator greatly.
Office of transformer station discharge signal pick-up unit described in the present embodiment, the width on described micro-zone circle 2 limit is at 1mm.By experiment and software emulation learn, so arrange and effectively can improve the standing wave of the HFS in a period of time thus the overall frequency scope in broadening a period of time.
Office of transformer station discharge signal pick-up unit described in the present embodiment, the edge of described medium flaggy 1 is provided with shielding enclosure; Office of transformer station discharge signal pick-up unit described in the present embodiment, two sides of described medium flaggy 1 are provided with multiple circumferential notch; Above-mentioned setting effectively can improve the undesired signal shielding properties of antenna to electric field.
Office of transformer station discharge signal pick-up unit described in the present embodiment, also includes the parasitic oscillator sheet 6 of the isolation triangular in shape being located at medium flaggy 1 front; Effectively can improve the standing wave of the HFS in a period of time thus the overall frequency scope in broadening a period of time.
The above is only a preferred embodiment of the present invention, therefore all equivalences done according to structure, feature and the principle described in patent claim of the present invention change or modify, and are included in the protection domain of patented claim of the present invention.
Claims (10)
1. office of transformer station discharge signal pick-up unit, is characterized in that: include multi-channel data collection unit, wave filter, data handling system and aerial array;
The local discharge signal that described multi-channel data collection unit arrives for gathering antenna array receiver; Wave filter is used for the clutter of the signal that filtering multi-channel data collection unit collects;
Described aerial array includes multiple microstrip antenna, and each described microstrip antenna includes medium flaggy (1), is located at the micro-strip oscillator in medium flaggy (1) front;
The edge of described medium flaggy (1) is provided with shielding enclosure.
2. office of transformer station according to claim 1 discharge signal pick-up unit, is characterized in that: described micro-strip oscillator includes feed coupling piece, the laterally zygomorphic two groups of microstrip elements of journey; Often organize microstrip element include two structures identical, micro-band subelement of being arranged side by side; Connected by feed line between two the micro-band subelements often organizing microstrip element;
Each described micro-band subelement includes a three-back-shaped micro-zone circle (2), four inner edges of described micro-zone circle (2) all extend internally out micro-armed (3) of P font, the quantity of micro-armed (3) that each limit extends internally out is four, and every two is one group, and two groups symmetrical in center line; Described each micro-armed (3) is provided with the projection of arc;
Be provided with rectangle first parasitic patch (5) in each described micro-zone circle (2), the side of the first parasitic patch (5) is provided with sawtooth, and the radiation that opposite side is provided with multiple journey rectangle refers to;
Annular second parasitic patch is provided with in each described micro-zone circle (2), the center ring of described second parasitic oscillator sheet (4) is identical with the reverse side of medium flaggy (1), and the center ring often organizing two the second parasitic oscillator sheets (4) of microstrip element is electrically connected at the reverse side of medium flaggy (1).
3. office of transformer station according to claim 2 discharge signal pick-up unit, is characterized in that: described micro-zone circle (2) is square.
4. office of transformer station according to claim 2 discharge signal pick-up unit, is characterized in that: the distance between described radiation refers to is between 1-2mm.
5. office of transformer station according to claim 2 discharge signal pick-up unit, is characterized in that: the quantity that described radiation refers to is between 12-20.
6. office of transformer station according to claim 2 discharge signal pick-up unit, is characterized in that: the line thickness of described micro-armed (3) is 2-5mm.
7. office of transformer station according to claim 2 discharge signal pick-up unit, is characterized in that: the center ring often organizing two the second parasitic oscillator sheets (4) of microstrip element is connected by feed line at the reverse side of medium flaggy (1).
8. office of transformer station according to claim 2 discharge signal pick-up unit, is characterized in that: the center ring often organizing two the second parasitic oscillator sheets (4) of microstrip element is provided with isolating bar (7) between the reverse side and the center ring of two other the second parasitic oscillator sheet (4) of medium flaggy (1).
9. office of transformer station according to claim 2 discharge signal pick-up unit, is characterized in that: the diameter of the second parasitic patch is 3mm.
10. office of transformer station according to claim 2 discharge signal pick-up unit, is characterized in that: the width on described micro-zone circle (2) limit is at 1mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510527874.7A CN105116289A (en) | 2015-08-25 | 2015-08-25 | Substation partial discharge signal detection apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510527874.7A CN105116289A (en) | 2015-08-25 | 2015-08-25 | Substation partial discharge signal detection apparatus |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105116289A true CN105116289A (en) | 2015-12-02 |
Family
ID=54664324
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510527874.7A Pending CN105116289A (en) | 2015-08-25 | 2015-08-25 | Substation partial discharge signal detection apparatus |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105116289A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106908701A (en) * | 2017-03-10 | 2017-06-30 | 中国电力科学研究院 | Space breakdown location array and its method for determining space electric discharge source position |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH1186689A (en) * | 1997-09-12 | 1999-03-30 | Nissin Electric Co Ltd | Insulation diagnostic apparatus |
| CN1875519A (en) * | 2003-10-27 | 2006-12-06 | 罗伯特·博世有限公司 | Antenna assembly, in particular for radar applications in motor vehicles |
| CN102331542A (en) * | 2011-06-21 | 2012-01-25 | 山东电力研究院 | Transformer substation local discharging signal online monitoring and positioning method |
| CN103777121A (en) * | 2014-01-22 | 2014-05-07 | 上海交通大学 | Multi-band ultrahigh frequency narrow band sensor for transformer substation local discharge detecting and positioning |
| CN104134851A (en) * | 2014-07-06 | 2014-11-05 | 胡洁维 | Broadband antenna |
| CN104701616A (en) * | 2015-03-24 | 2015-06-10 | 邝嘉豪 | Antenna |
-
2015
- 2015-08-25 CN CN201510527874.7A patent/CN105116289A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH1186689A (en) * | 1997-09-12 | 1999-03-30 | Nissin Electric Co Ltd | Insulation diagnostic apparatus |
| CN1875519A (en) * | 2003-10-27 | 2006-12-06 | 罗伯特·博世有限公司 | Antenna assembly, in particular for radar applications in motor vehicles |
| CN102331542A (en) * | 2011-06-21 | 2012-01-25 | 山东电力研究院 | Transformer substation local discharging signal online monitoring and positioning method |
| CN103777121A (en) * | 2014-01-22 | 2014-05-07 | 上海交通大学 | Multi-band ultrahigh frequency narrow band sensor for transformer substation local discharge detecting and positioning |
| CN104134851A (en) * | 2014-07-06 | 2014-11-05 | 胡洁维 | Broadband antenna |
| CN104701616A (en) * | 2015-03-24 | 2015-06-10 | 邝嘉豪 | Antenna |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106908701A (en) * | 2017-03-10 | 2017-06-30 | 中国电力科学研究院 | Space breakdown location array and its method for determining space electric discharge source position |
| CN106908701B (en) * | 2017-03-10 | 2020-06-26 | 中国电力科学研究院 | Space discharge positioning array and method for determining space discharge source position |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN105067981A (en) | High sensitivity monitoring system of transformer substation | |
| CN105004975A (en) | Transformer substation partial discharge signal detection system provided with first parasitic oscillator sheet | |
| CN104991173A (en) | High-precision substation partial discharge signal detection system | |
| CN105067969A (en) | Power station partial discharge signal detection system | |
| CN102916247A (en) | Hilbert fractal antenna array for ultra-high-frequency detection of partial discharge | |
| CN107257018B (en) | Low frequency radiating element and multifrequency antenna with the low frequency radiating element | |
| CN103280625A (en) | GNSS (Global Navigation Satellite System) high-precision measuring antenna | |
| CN115621723B (en) | Compact ceramic chip antenna array based on ultra wide band three-dimensional direction finding | |
| CN105004980A (en) | Substation discharge signal detection device | |
| CN105116288A (en) | High-gain substation partial discharge signal detection system | |
| CN105021964A (en) | Transformer station partial discharge signal detection system | |
| CN105182194A (en) | High-accuracy partial discharging signal detection system of transformer station | |
| CN105842592A (en) | Filterable substation partial discharge signal detection system | |
| CN106168645A (en) | It is provided with the transformer station partial discharge signals detecting system of spacer bar | |
| CN105116289A (en) | Substation partial discharge signal detection apparatus | |
| CN109768394A (en) | The method of microstrip antenna structure and electromagnetic radiation signal | |
| CN105021965A (en) | High sensitivity transformer station electric discharge signal monitoring device | |
| CN105652167A (en) | Partial discharge signal detection system for communication-capable transformer substation | |
| CN105021966A (en) | Simple and efficient transformer station detection system | |
| CN105004977A (en) | Transformer substation partial discharge signal detection system | |
| CN105004976A (en) | Transformer substation partial discharge signal detection device | |
| CN105067972A (en) | 45-degree substation partial discharge signal detection system | |
| CN104991174A (en) | Power station partial discharge signal detection system | |
| CN106226664A (en) | Transformer station partial discharge signals detecting system | |
| CN104681969A (en) | Hybrid radiator antenna structure |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20151202 |