CN203405535U - Positioning device and system of partial discharge signal source in gas insulated substation (GIS) - Google Patents
Positioning device and system of partial discharge signal source in gas insulated substation (GIS) Download PDFInfo
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- CN203405535U CN203405535U CN201320377019.9U CN201320377019U CN203405535U CN 203405535 U CN203405535 U CN 203405535U CN 201320377019 U CN201320377019 U CN 201320377019U CN 203405535 U CN203405535 U CN 203405535U
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- discharge signal
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Abstract
The utility model discloses a positioning device and system of a partial discharge signal source in a gas insulated substation (GIS). The positioning device of the partial discharge signal source in the gas insulated substation comprises a first detector for detecting the partial discharge signal of the partial discharge signal source to obtain a first signal; a second detector for detecting the partial discharge signal of the partial discharge signal source to obtain a second signal; a receiver for receiving the first signal and the second signal in the wireless communication way and determining the position of the partial discharge signal source according to the first signal and the second signal. The positioning device and system solve the problem of the prior art that the structure of the GIS partial discharge positioning system is complicated, and furthermore the structure of the GIS partial discharge positioning system is simplified.
Description
Technical field
The utility model relates to field of electrical equipment, in particular to locating device and the system in Partial discharge signal source in a kind of gas-insulating and fully-enclosed combined electrical apparatus.
Background technology
Along with advancing by leaps and bounds of China's power industry construction, modern power systems is just towards large electrical network, large unit, UHV (ultra-high voltage), jumbo future development, for ensureing stability, the reliability of electric system, the safe coefficient of power equipment is also had higher requirement.
The safe operation of high voltage electric equipment is most important to stablizing of electric system, must the testing of value and strengthen to it.GIS(Gas Insulation Switchgear, be called for short GIS) be a kind of gas-insulating and fully-enclosed combined electrical apparatus, very common in electrical network and large-scale substation, the shelf depreciation of GIS is to cause apparatus insulated deteriorated one of the main reasons, also be to describe apparatus insulated aging key character simultaneously, by detection and location are carried out in GIS local discharge signal source, can effectively find out apparatus insulated aging part, at present, GIS local discharge signal source is being carried out in the system of detection and location, comprise many passive sensors, signal picker, signal concentrator and background server etc., connection between these parts generally adopts wired mode, the on-the-spot wiring difficulty of installing is large, waste time and energy, but also cause GIS partial discharge location system architecture complicated.
Problem for GIS partial discharge location system architecture complexity in correlation technique, not yet proposes effective solution at present.
Utility model content
Fundamental purpose of the present utility model is to provide locating device and the system in Partial discharge signal source in a kind of gas-insulating and fully-enclosed combined electrical apparatus, to solve the problem of GIS partial discharge location system architecture complexity in prior art.
To achieve these goals, according to an aspect of the present utility model, the locating device that Partial discharge signal source in a kind of gas-insulating and fully-enclosed combined electrical apparatus is provided, comprising: the first detecting device and the second detecting device, all for detection of the local discharge signal in Partial discharge signal source; And receiver, by wireless communication mode, receive first signal and secondary signal, and according to first signal and secondary signal, determine the position in Partial discharge signal source, wherein, first signal is the local discharge signal that the first detecting device detects, and secondary signal is the local discharge signal that the second detecting device detects.
Further, the first detecting device and the second detecting device are active sensor, and active sensor is arranged in gas-insulating and fully-enclosed combined electrical apparatus GIS.
Further, active sensor comprises: the first housing; Coupled antenna, is arranged in the first housing; Signal acquisition module, is arranged in the first housing, and is connected with coupled antenna, for gathering local discharge signal by coupled antenna; The first wireless communication module, is arranged in the first housing, and is connected with signal acquisition module, for transmitting local discharge signal by the first wireless communication antenna to receiver; And first wireless communication antenna, be arranged on the first housing outer surface, and be connected with the first wireless communication module.
Further, the local discharge signal that signal acquisition module collects by coupled antenna is simulating signal, active sensor also comprises: conditioning module, be arranged in the first housing, all be connected with signal acquisition module with coupled antenna, for simulating signal is carried out to modulus processing, obtain representing the digital signal of local discharge signal.
Further, receiver comprises: the second housing; The second wireless communication antenna, is arranged on the second housing outer surface; And processor module, be arranged in the second housing, and be connected with the second wireless communication antenna, for receiving first signal and secondary signal by the second wireless communication antenna, and according to first signal and secondary signal, determine the position in Partial discharge signal source.
Further, locating device also comprises: oscillograph, there is the first test channel and the second test channel, receiver also comprises the first output interface and the second output interface, wherein, processor module is connected to the first test channel by the first output interface, to transmit first signal to oscillograph, by the second output interface, be connected to the second test channel, to transmit secondary signal to oscillograph.
Further, receiver also comprises: the first pilot lamp and the second pilot lamp, be all arranged on the second housing outer surface, and be all connected with processor module, wherein, processor module is also for lighting according to the position in Partial discharge signal source the first pilot lamp or the second pilot lamp.
Further, processor module comprises phase comparator, and phase comparator comprises: data input pin, is connected with the second wireless communication antenna, for receiving first signal; Input end of clock, is connected with the second wireless communication antenna, for receiving secondary signal; And sampling output terminal, for first signal being sampled under the enabling of secondary signal, and export sampled signal 0 or 1, wherein, the time of reception that sampled signal 0 represents first signal is after the time of reception of secondary signal, the position in Partial discharge signal source is near the second detecting device 2b, and the time of reception that sampled signal 1 represents first signal, the position in Partial discharge signal source was near the first detecting device 2a before the time of reception of secondary signal.
To achieve these goals, according on the other hand of the present utility model, provide the positioning system in Partial discharge signal source in a kind of gas-insulating and fully-enclosed combined electrical apparatus, having comprised: gas-insulating and fully-enclosed combined electrical apparatus; And locating device, wherein, any locating device that locating device provides for the utility model foregoing.
The utility model adopts the locating device in Partial discharge signal source in the gas-insulating and fully-enclosed combined electrical apparatus that comprises following structure, comprising: the first detecting device, and the local discharge signal for detection of Partial discharge signal source, obtains first signal; The second detecting device, the local discharge signal for detection of Partial discharge signal source, obtains secondary signal; And receiver, by wireless communication mode, receive first signal and secondary signal, and according to first signal and secondary signal, determine the position in Partial discharge signal source.By the receiver that receives local discharge signal with wireless communication mode is set, reduced the wiring complicacy when Partial discharge signal source positions in GIS, on-the-spot installation difficulty and wiring difficulty when Partial discharge signal source positions in GIS have been reduced, solve the problem of GIS partial discharge location system architecture complexity in prior art, and then reached the effect of simplifying GIS partial discharge location system architecture.
Accompanying drawing explanation
The accompanying drawing that forms the application's a part is used to provide further understanding of the present utility model, and schematic description and description of the present utility model is used for explaining the utility model, does not form improper restriction of the present utility model.In the accompanying drawings:
Fig. 1 is according to the schematic diagram of the locating device in Partial discharge signal source in the GIS of the utility model embodiment;
Fig. 2 is according to the schematic diagram of detecting device in the locating device in Partial discharge signal source in the GIS of the utility model embodiment; And
Fig. 3 is according to the schematic diagram of receiver in the locating device in Partial discharge signal source in the GIS of the utility model embodiment.
Embodiment
It should be noted that, in the situation that not conflicting, embodiment and the feature in embodiment in the application can combine mutually.Describe below with reference to the accompanying drawings and in conjunction with the embodiments the utility model in detail.
The utility model embodiment provides the locating device in Partial discharge signal source in a kind of gas-insulating and fully-enclosed combined electrical apparatus, below the locating device in Partial discharge signal source that the utility model embodiment is provided be specifically introduced:
Fig. 1 is according to the schematic diagram of the locating device in Partial discharge signal source in the gas-insulating and fully-enclosed combined electrical apparatus of the utility model embodiment, and as shown in Figure 1, the locating device in this Partial discharge signal source comprises the first detecting device 2a, the second detecting device 2b and receiver 30.
Wherein, the first detecting device 2a and the second detecting device 2b are all for detection of the local discharge signal in Partial discharge signal source 10, and the local discharge signal that the first detecting device 2a detects is first signal, and the local discharge signal that the second detecting device 2b detects is secondary signal.
The locating device in Partial discharge signal source in the gas-insulating and fully-enclosed combined electrical apparatus of the utility model embodiment, by the receiver that receives local discharge signal with wireless communication mode is set, reduced the wiring complicacy when Partial discharge signal source positions in GIS, on-the-spot installation difficulty and wiring difficulty when Partial discharge signal source positions in GIS have been reduced, solve the problem of GIS partial discharge location system architecture complexity in prior art, and then reached the effect of simplifying GIS partial discharge location system architecture.
Particularly, the first detecting device 2a and the second detecting device 2b are active sensor, and the ultra-high frequency signal leaking out for receiving better the inner shelf depreciation of power equipment, should be placed on active sensor nonmetal shielding place of GIS equipment during detection.Generally, insulation basin, grounding switch insulator, cable splice, observation port of selecting nonmetal shielding etc. located as measurement point.The structure of the first detecting device 2a and the second detecting device 2b forms identical, Fig. 2 is the structural representation of arbitrary detecting device in the first detecting device 2a and the second detecting device 2b, as shown in Figure 2, in the first detecting device 2a and the second detecting device 2b, arbitrary detecting device comprises the first housing 24, coupled antenna 21, signal acquisition module 22, the first wireless communication module 23 and the first wireless communication antenna 25, wherein, coupled antenna 21, signal acquisition module 22 and the first wireless communication module 23 are all arranged in the first housing 24, signal acquisition module 22 is connected with coupled antenna 21, for gathering by coupled antenna 21 first signal and the secondary signal that represents local discharge signal, the first wireless communication module 23 is connected with signal acquisition module 22, for transmitting local discharge signals by the first wireless communication antenna 25 to receiver 30, the first wireless communication antenna 25 is arranged on the first housing 24 outside surfaces, and be connected with the first wireless communication module 23.
Wherein, the local discharge signal that signal acquisition module 22 collects by coupled antenna 21 is simulating signal, detecting device in the utility model embodiment also comprises conditioning module 27, this conditioning module 27 is arranged in the first housing 24, all be connected with signal acquisition module 22 with coupled antenna 21, for simulating signal is carried out to modulus processing, obtain representing the digital signal of local discharge signal.In the utility model embodiment, conditioning module 27 and signal acquisition module 22 can independently arrange, and also can be integrated into signal condition acquisition module.Between coupled antenna 21, signal acquisition module 22, the first wireless communication module 23, the first wireless communication antenna 25 and conditioning module 27, all by rf signal line, be connected.Coupled antenna 21 induction uhf electromagnetic wave signals, and by radio-frequency (RF) coaxial line, simulating signal is delivered to signal acquisition module 22.27 pairs of simulating signals of conditioning module are carried out signal condition, comprise the processing such as filtering, pulse envelope detection and analog to digital conversion, obtain digitized signal waveform.In signal acquisition module 22, have flush bonding processor, it is with the communication protocol stack of WIFI, and has connected the first wireless communication antenna 25, can realize WIFI wireless networking and wireless telecommunications.Signal acquisition module 22 is passed through WIFI Internet Transmission to receiver 30 digitized waveform signal, has realized the collection of ultra-high frequency signal and has uploaded.
The first wireless communication module 23 is used the RS9110-N-11-22 module of Redpine Signals company, and it has comprised complete 802.11bgn protocol stack, carries out data transmission with embedded device by serial ports or SPI.
Correspondingly, in the utility model embodiment, receiver 30 comprises the second housing 34, the second wireless communication antenna 31 and processor module 35, Fig. 3 is the schematic diagram of receiver 30, as shown in Figure 3, the second wireless communication antenna 31 is arranged on the second housing 34 outside surfaces, processor module 35 is arranged in the second housing 34, and be connected with the second wireless communication antenna 31, for receiving first signal and secondary signals by the second wireless communication antenna 31, and according to first signal and secondary signal, determine the position in Partial discharge signal source.
Wherein, processor module 35 can be comprised of logical circuit, also can be comprised of processor chips, below illustrates two kinds of structure building forms of processor module 35:
Structure one: processor module 35 comprises phase comparator, this phase comparator has data input pin, input end of clock and sampling output terminal, wherein, data input pin is all connected with the second wireless communication antenna 31 with input end of clock, data input pin is used for receiving described first signal, input end of clock is used for receiving described secondary signal, sampling output terminal is sampled to first signal under the enabling of secondary signal, and export sampled signal 0 or 1, wherein, the time of reception that sampled signal 0 represents first signal is after the time of reception of secondary signal, the position in Partial discharge signal source is near the second detecting device, the time of reception that sampled signal 1 represents first signal is before the time of reception of secondary signal, the position in Partial discharge signal source is near the first detecting device.
The main processor module 35 being comprised of phase comparator has been realized the time of reception of obtaining first signal and secondary signal; The sequencing that compares first time of reception and second time of reception; In the situation that relatively first time of reception is before second time of reception, determine that the position in Partial discharge signal source is near the first detecting device 2a; In the situation that relatively first time of reception is after second time of reception, determine that the position in Partial discharge signal source is near the second detecting device 2b.The processor module 35 of this kind of structure is by step-out time analysis method, at the first detecting device 2a and the second detecting device 2b in the different situation of distance apart from Partial discharge signal source, receiver 30 can successively receive first signal and secondary signal in certain time difference range, the detecting device near apart from Partial discharge signal source understood first signal transmission to receiver, apart from Partial discharge signal source detecting device far away after signal transmission to receiver, with this, realize coarse localization carried out in the position in Partial discharge signal source.
Structure two: processor module 35 comprises having the processor chips of carrying out following functions, set-up procedure: adjust the installation position of the first detecting device 2a and the installation position of the second detecting device 2b; Treatment step: obtain the time of reception of first signal and secondary signal in the process of adjusting installation position, and judge whether is synchronization the time of reception of first signal and secondary signal; The first obtaining step: be synchronization in the situation that judge the time of reception of first signal and secondary signal, obtain the vertical bisector plane of the first installation position and the second installation position, wherein, the first installation position is the installation position of the first detecting device 2a, and the second installation position is the installation position of the second detecting device 2b; Return to step: return to set-up procedure, until get at least three vertical bisector plane; The second obtaining step: obtain the intersection point of at least three vertical bisector plane, obtain the position in Partial discharge signal source.
The processor module 35 of this kind of structure is by adjusting the installation position of the first detecting device 2a and the installation position of the second detecting device 2b, Partial discharge signal source is positioned, wherein, when the time difference of the first signal receiving and secondary signal is zero, illustrate that two signals arrive simultaneously, show that Partial discharge signal source is in the vertical bisector plane of two detecting devices, change an orientation and carry out same measurement, can obtain another vertical bisector plane.After Using such method is repeatedly adjusted, can obtain several bisector plane, three vertical bisector plane can meet at a bit, so, the position of measuring Partial discharge signal source in can determining in three dimensions at least three times, which, has realized the position in Partial discharge signal source has accurately been located.
Preferably, the locating device of the utility model embodiment also comprises oscillograph 40, this oscillograph 40 has the first test channel and the second test channel, receiver 30 also comprises the first output interface 33a and the second output interface 33b, wherein, processor module 35 is connected to the first test channel by the first output interface 33a and a high frequency coaxial line 50, to transmit first signal to oscillograph, by the second output interface 33b and a high frequency coaxial line 50, be connected to the second test channel, to transmit secondary signal to oscillograph.
By first signal and secondary signal are transferred on oscillograph 40 and are shown, realized the sequential priority that can make to demonstrate intuitively on oscillograph first signal and secondary signal, reached intuitively and provide Partial discharge signal source close detecting device to user, so intuitively to user provide determine to obtain the position in Partial discharge signal source.
Further, receiver 30 also comprises the first pilot lamp 32a and the second pilot lamp 32b, the first pilot lamp 32a and the second pilot lamp 32b are all arranged on the second housing 34 outside surfaces, and be all connected with processor module 35, wherein, processor module 35 is also for lighting according to the position in Partial discharge signal source the first pilot lamp 32a or the second pilot lamp 32b, when first signal is ahead of secondary signal, be that time of reception of first signal is before the time of reception of secondary signal time, determine that the position in Partial discharge signal source is near the first detecting device 2a, this kind of situation, drive the first pilot lamp 32a to light, when first signal lags behind secondary signal, be that time of reception of first signal is after time of reception of secondary signal time, determine that the position in Partial discharge signal source is near the second detecting device 2b, this kind of situation, drive the second pilot lamp 32b to light.
Sequential by according to first signal and secondary signal successively, that is, according to the position in Partial discharge signal source, drives the first pilot lamp 32a or the second pilot lamp 32b to light, and reached equally intuitively to user determine the to obtain position in Partial discharge signal source is provided.
Further, the first detecting device 2a and the second detecting device 2b are active uhf sensor, because disturbing, the corona of GIS mainly concentrates on below 300MHz frequency range, and the frequency range of active uhf sensor is 300-3000MHz, therefore utilize active uhf sensor to detect local discharge signal, can effectively avoid the interference such as corona of GIS, there is higher sensitivity and antijamming capability.
The utility model embodiment also provides the positioning system in Partial discharge signal source in a kind of gas-insulating and fully-enclosed combined electrical apparatus, and this positioning system mainly comprises the locating device in Partial discharge signal source in any gas-insulating and fully-enclosed combined electrical apparatus that gas-insulating and fully-enclosed combined electrical apparatus GIS and the utility model embodiment foregoing provide.
From above description, can find out, in the gas-insulating and fully-enclosed combined electrical apparatus that the utility model embodiment provides in the locating device and system in Partial discharge signal source, active uhf sensor carries out signal transmission by WIFI wireless networking mode, realize foundation and the data communication of wireless networking, and image data result is transferred to receiver device.Receiver receives the data result from each sensor, analyzes the position in Partial discharge signal source.This kind of positioning device structure compactness, active uhf sensor is fixed installation mode, and mounting structure is not designed with impact to GIS is original, can to the local discharging level of GIS, effectively monitor at the scene.
Obviously, those skilled in the art should be understood that, above-mentioned each module of the present utility model or each step can realize with general calculation element, they can concentrate on single calculation element, or be distributed on the network that a plurality of calculation elements form, alternatively, they can be realized with the executable program code of calculation element, thereby, they can be stored in memory storage and be carried out by calculation element, or they are made into respectively to each integrated circuit modules, or a plurality of modules in them or step are made into single integrated circuit module to be realized.Like this, the utility model is not restricted to any specific hardware and software combination.
The foregoing is only preferred embodiment of the present utility model, be not limited to the utility model, for a person skilled in the art, the utility model can have various modifications and variations.All within spirit of the present utility model and principle, any modification of doing, be equal to replacement, improvement etc., within all should being included in protection domain of the present utility model.
Claims (9)
1. the locating device in Partial discharge signal source in gas-insulating and fully-enclosed combined electrical apparatus, is characterized in that, comprising:
The first detecting device (2a) and the second detecting device (2b), all for detection of the local discharge signal in described Partial discharge signal source; And
Receiver (30), with described the first detecting device (2a) and all wireless connections of described the second detecting device (2b), for receiving first signal and secondary signal by wireless communication mode, and according to described first signal and described secondary signal, determine the position in described Partial discharge signal source, wherein, described first signal is the described local discharge signal that described the first detecting device (2a) detects, and described secondary signal is the described local discharge signal that described the second detecting device (2b) detects.
2. locating device according to claim 1, is characterized in that, described the first detecting device (2a) and described the second detecting device (2b) are active sensor, and described active sensor is arranged in described gas-insulating and fully-enclosed combined electrical apparatus.
3. locating device according to claim 2, is characterized in that, described active sensor comprises:
The first housing (24);
Coupled antenna (21), is arranged in described the first housing (24);
Signal acquisition module (22), is arranged in described the first housing (24), and is connected with described coupled antenna (21), for gathering described local discharge signal by described coupled antenna (21);
The first wireless communication module (23), is arranged in described the first housing (24), and is connected with described signal acquisition module (22), for transmitting described local discharge signal by the first wireless communication antenna (25) to described receiver (30); And
Described the first wireless communication antenna (25), is arranged on described the first housing (24) outside surface, and is connected with described the first wireless communication module (23).
4. locating device according to claim 3, is characterized in that, the described local discharge signal that described signal acquisition module (22) collects by described coupled antenna (21) is simulating signal, and described active sensor also comprises:
Conditioning module (27), be arranged in described the first housing (24), all be connected with described signal acquisition module (22) with described coupled antenna (21), for described simulating signal is carried out to modulus processing, obtain representing the digital signal of described local discharge signal.
5. locating device according to claim 1, is characterized in that, described receiver (30) comprising:
The second housing (34);
The second wireless communication antenna (31), is arranged on described the second housing (34) outside surface; And
Processor module (35), be arranged in described the second housing (34), and be connected with described the second wireless communication antenna (31), for receiving described first signal and described secondary signal by described the second wireless communication antenna (31), and according to described first signal and described secondary signal, determine the position in described Partial discharge signal source.
6. locating device according to claim 5, is characterized in that, described locating device also comprises:
Oscillograph (40), has the first test channel and the second test channel,
Described receiver (30) also comprises the first output interface (33a) and the second output interface (33b),
Wherein, described processor module (35) is connected to described the first test channel by described the first output interface (33a), to transmit described first signal to described oscillograph (40), by described the second output interface (33b), be connected to described the second test channel, to transmit described secondary signal to described oscillograph (40).
7. locating device according to claim 5, is characterized in that, described receiver (30) also comprises:
The first pilot lamp (32a) and the second pilot lamp (32b), be all arranged on described the second housing (34) outside surface, and be all connected with described processor module (35),
Wherein, described processor module (35) is also for lighting according to the first pilot lamp (32a) described in the position in described Partial discharge signal source or described the second pilot lamp (32b).
8. locating device according to claim 5, is characterized in that, described processor module (35) comprises phase comparator, and described phase comparator comprises:
Data input pin, is connected with described the second wireless communication antenna (31), for receiving described first signal;
Input end of clock, is connected with described the second wireless communication antenna (31), for receiving described secondary signal; And
Sampling output terminal, for described first signal being sampled under the enabling of described secondary signal, and export sampled signal 0 or 1, wherein, the time of reception that described sampled signal 0 represents described first signal is after the time of reception of described secondary signal, the position in described Partial discharge signal source is near described the second detecting device (2b), the time of reception that described sampled signal 1 represents described first signal, the position in described Partial discharge signal source was near described the first detecting device (2a) before the time of reception of described secondary signal.
9. the positioning system in Partial discharge signal source in gas-insulating and fully-enclosed combined electrical apparatus, is characterized in that, comprising:
Gas-insulating and fully-enclosed combined electrical apparatus; And
Locating device, wherein, described locating device is the locating device described in any one in claim 1 to 8.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320377019.9U CN203405535U (en) | 2013-06-27 | 2013-06-27 | Positioning device and system of partial discharge signal source in gas insulated substation (GIS) |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201320377019.9U CN203405535U (en) | 2013-06-27 | 2013-06-27 | Positioning device and system of partial discharge signal source in gas insulated substation (GIS) |
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| CN201320377019.9U Expired - Lifetime CN203405535U (en) | 2013-06-27 | 2013-06-27 | Positioning device and system of partial discharge signal source in gas insulated substation (GIS) |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103913679A (en) * | 2014-03-03 | 2014-07-09 | 国联思创（北京）科技有限公司 | Online monitoring system for partial discharge of high-voltage switch cabinet |
| CN104251961A (en) * | 2013-06-27 | 2014-12-31 | 国家电网公司 | Partial discharging signal source positioning device and system of gas-insulation completely-enclosed combined electrical appliance |
-
2013
- 2013-06-27 CN CN201320377019.9U patent/CN203405535U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104251961A (en) * | 2013-06-27 | 2014-12-31 | 国家电网公司 | Partial discharging signal source positioning device and system of gas-insulation completely-enclosed combined electrical appliance |
| CN103913679A (en) * | 2014-03-03 | 2014-07-09 | 国联思创（北京）科技有限公司 | Online monitoring system for partial discharge of high-voltage switch cabinet |
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