CN209728044U - A kind of Portable transformer substation transient overvoltage real-time monitoring device - Google Patents
A kind of Portable transformer substation transient overvoltage real-time monitoring device Download PDFInfo
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- CN209728044U CN209728044U CN201920315553.4U CN201920315553U CN209728044U CN 209728044 U CN209728044 U CN 209728044U CN 201920315553 U CN201920315553 U CN 201920315553U CN 209728044 U CN209728044 U CN 209728044U
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Abstract
The utility model discloses a kind of Portable transformer substation transient overvoltage real-time monitoring device, including signal acquisition front end and data processing rear end, signal acquisition front end is connected with data processing rear end by polarization maintaining optical fibre, and data processing rear end is a movable fixture.Signal acquisition front end includes insulating support rod and probe, ground is fixed in the bottom of insulating support rod, probe is installed at the top of insulating support rod, probe includes that upper housing, lower case, integrated optical sensor, installation card slot and fiber coupler, data processing rear end include optical signal prosessing module, data collecting card, mainboard, GPS module and power management module.The utility model improves Temporal Data time precision, and the data processing rear end of the utility model is a mancarried device, improves the flexibility of monitoring, uses GPS module additionally to improve timing accuracy.
Description
Technical field
The utility model relates to a kind of transient overvoltage real-time monitoring device more particularly to a kind of Portable transformer substation transient state
Overvoltage real-time monitoring device.
Background technique
Currently, more mature transient overvoltage monitoring system mainly has two major classes and has the following deficiencies: 1. contact
Measurement --- installation is inconvenient, measurement accuracy is low, frequency response is undesirable or timing accuracy is low；2. non-contact measurement --- decoupling
Difficulty is big, anti-interference ability is weak, timing accuracy is low or monitoring sensitivity is low.
It, should in the patent " a kind of transient overvoltage on-line monitoring system " that number of patent application is " 201220107456.4 "
Patent proposes a kind of transient overvoltage on-Line Monitor Device, will be high using high-voltage bleeder using the principle of capacitive divider
Pressure side voltage is converted into collectable low-voltage signal, but program measurement accuracy is not high, and Measurement bandwidth is lower, upper cut-off frequency
It is low, it can not accurately measure transient overvoltage signal.
Utility model content
To solve the above-mentioned problems, the utility model proposes a kind of Portable transformer substation transient overvoltage real-time monitoring dresses
It sets, to solve, the flexibility occurred in current substation's transient overvoltage real-time monitoring is low, measurement accuracy is low, decoupling is difficult, fixed
The problem that Shi Jingdu is low, fluctuation of service, monitoring sensitivity are low.
A kind of Portable transformer substation transient overvoltage real-time monitoring device, including after signal acquisition front end and data processing
End, the signal acquisition front end are connected with data processing rear end by polarization maintaining optical fibre, and the data processing rear end can for one
Mobile device, wherein signal acquisition front end is substantially carried out analog voltage signal acquisition, and data processing rear end is substantially carried out A/D and turns
It changes, data analysis, data store and data are sent.
Further, the signal acquisition front end includes insulating support rod and probe, and the bottom of the insulating support rod is solid
Due to ground, the probe is installed at the top of insulating support rod.The probe includes upper housing, lower case, integrating optical sensor
Device, installation card slot and fiber coupler, the integrated optical sensor are installed on installation card slot, the installation card slot and optical fiber
Coupler is installed in lower case, and the upper housing and lower case are connected by a snap, and the integrated optical sensor passes through light
Fine coupler connects data processing rear end with polarization maintaining optical fibre.Wherein, integrated optical sensor utilizes electrooptic effect inductive spacing electricity
Variation carries out transient overvoltage measurement, in measurement process by the optical signal to data after polarization maintaining optical fibre transmission Electric Field Modulated at
It manages rear end and carries out follow-up signal processing.
Further, the data processing rear end include optical signal prosessing module, data collecting card, mainboard, GPS module and
Power management module, the optical signal prosessing module acquire the integrated optical sensor of front end by polarization maintaining optical fibre connection signal,
The output end of the optical signal prosessing module and GPS module is electrically connected the input terminal of data collecting card, the data collecting card
With the equal electrically connected mainboard of output end of power management module.Wherein, GPS module is for providing stable accurate timing function.
Further, the optical signal prosessing module of the data processing rear end includes optical signal sending module and optical signal
Detecting module, the output end of the optical signal sending module connect the input terminal of integrated optical sensor, institute by polarization maintaining optical fibre
The input terminal for stating optical signal detecting module connects the output end of integrated optical sensor, the optical signal detection by polarization maintaining optical fibre
The input terminal of the output end electrical connection data collecting card of module.Specifically, optical signal sending module sends height by polarization maintaining optical fibre
Polarisation signal to integrated optical sensor, optical signal detector module is received by polarization maintaining optical fibre from integrated optical sensor
Optical signal is translated into the electric signal for carrying Electric Field Modulated information.
Further, the upper housing of the probe of the signal acquisition front end and lower shell surface are coated with room temperature vulcanization silicon
Rubber coating reduces influence of the ambient humidity to sensor performance, to improve to improve the hydrophobicity of upper housing and lower case
Measuring stability.
Further, the probe of the signal acquisition front end is butterfly probe.
Further, the signal acquisition front end is provided with A, B, C three-phase.
The utility model has the beneficial effects that:
(1) the utility model data processing rear end is a mancarried device, improves the flexibility of monitoring；
(2) the utility model improves Temporal Data time precision；
(3) the utility model improves timing accuracy using GPS module.
Detailed description of the invention
Fig. 1 is the principles of the present invention figure；
Fig. 2 is the front of data processing rear end；
Fig. 3 is the back side of data processing rear end.
Specific embodiment
For a clearer understanding of the technical features, objectives and effects of the utility model, now compareing Detailed description of the invention
Specific embodiment of the present utility model.
A kind of Portable transformer substation transient overvoltage real-time monitoring device, as shown in Figure 1, including signal acquisition front end sum number
According to processing rear end, signal acquisition front end is connected with data processing rear end by polarization maintaining optical fibre.As shown in Figures 2 and 3, after data processing
End is a movable fixture.Wherein, signal acquisition front end is substantially carried out analog voltage signal acquisition, and data processing rear end is main
A/D conversion, data analysis, data storage and data are carried out to send.
Signal acquisition front end includes insulating support rod and probe, and ground, probe installation are fixed in the bottom of insulating support rod
At the top of insulating support rod.Probe includes upper housing, lower case, integrated optical sensor, installation card slot and fiber coupler, collection
It is installed on installation card slot at optical sensor, card slot is installed and fiber coupler is installed in lower case, upper housing and lower casing
Body is connected by a snap, and integrated optical sensor connects data processing rear end with polarization maintaining optical fibre by fiber coupler.Wherein, collect
Transient overvoltage measurement is carried out using electrooptic effect inductive spacing electric field change at optical sensor, passes through polarization-maintaining in measurement process
Optical signal to data processing rear end after optical fiber transmission Electric Field Modulated carries out follow-up signal processing.Specifically, probe is that butterfly is visited
Head, the upper housing and lower shell surface of probe are coated with room temperature vulcanized silicone rubber coating, to improve hating for upper housing and lower case
It is aqueous, influence of the ambient humidity to sensor performance is reduced, to improve measuring stability.In addition, signal acquisition front end is arranged
There are A, B, C three-phase.
Data processing rear end includes optical signal prosessing module, data collecting card, mainboard, GPS module and power management module,
Optical signal prosessing module by polarization maintaining optical fibre connection signal acquire front end integrated optical sensor, optical signal prosessing module and
The output end of GPS module is electrically connected the input terminal of data collecting card, and the output end of data collecting card and power management module is equal
Electrically connected mainboard.Wherein, GPS module is for providing stable accurate timing function.Specifically, at the optical signal of data processing rear end
Reason module includes optical signal sending module and optical signal detecting module, and the output end of optical signal sending module is connected by polarization maintaining optical fibre
The input terminal of integrated optical sensor is connect, the input terminal of optical signal detecting module connects integrated optical sensor by polarization maintaining optical fibre
Output end, optical signal detecting module output end electrical connection data collecting card input terminal.Specifically, optical signal sending module
Send high polarisation signal to integrated optical sensor by polarization maintaining optical fibre, optical signal detector module by polarization maintaining optical fibre reception come
From the optical signal of integrated optical sensor, it is translated into the electric signal for carrying Electric Field Modulated information.
In the embodiments of the present invention, the data collecting card of data processing rear end is for acquiring optical signal prosessing module
A, B, C three-phase electric signal of output, and transient signal monitoring is carried out by Mean Filtering Algorithm, after monitoring transient voltage,
Is there is preceding 1 period and rear 4 periods as a bag data in transient signal to save, includes temporal information in the data packet
And sampling rate information and A, B, C three-phase voltage data information.
In the embodiments of the present invention, integrated optical sensor is the integrating optical sensor based on Pockels effect
Device, optical signal prosessing module include the extreme light source of SLED high, 1310nm polarization beam apparatus, 1310nm analyzer, photoelectric converter
And trans-impedance amplifier, mainboard are the main control module based on AmlTX-SL-G-Q170 (RC), data collecting card model PCIe-
9814, GPS module is the GPS module based on SIM28M chip, and power management module is the power management based on LTC3789 chip
Module.
The above is only the preferred embodiment of the utility model, it should be understood that the utility model is not limited to herein
Disclosed form, should not be regarded as an exclusion of other examples, and can be used for other combinations, modifications, and environments, and
Can be in contemplated scope described herein, modifications can be made through the above teachings or related fields of technology or knowledge.And this field
The modifications and changes that personnel are carried out do not depart from the spirit and scope of the utility model, then all should be in right appended by the utility model
It is required that protection scope in.
In the description of the present invention, it should be noted that term " center ", "upper", "lower", "left", "right",
The orientation or positional relationship of the instructions such as "inner", "outside" is to be based on the orientation or positional relationship shown in the drawings, or this is practical new
Type using when the orientation or positional relationship usually put, be merely for convenience of describing the present invention and simplifying the description, rather than
The device or element of indication or suggestion meaning must have a particular orientation, be constructed and operated in a specific orientation, therefore cannot
It is construed as a limitation of the present invention.In addition, term " first ", " second ", " third " etc. are only used for distinguishing description, and cannot
It is interpreted as indication or suggestion relative importance.
In the description of the present invention, it should also be noted that, unless otherwise clearly defined and limited, term " is set
Set ", " installation ", " connection " shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or integrally
Connection；It can be mechanical connection, be also possible to be electrically connected.
Claims (5)
1. a kind of Portable transformer substation transient overvoltage real-time monitoring device, which is characterized in that including signal acquisition front end sum number
According to processing rear end, the signal acquisition front end is connected with data processing rear end by polarization maintaining optical fibre, and the data processing rear end
For a movable fixture；
The signal acquisition front end includes insulating support rod and probe, and ground is fixed in the bottom of the insulating support rod, described
Probe is installed at the top of insulating support rod；It is described probe include upper housing, lower case, integrated optical sensor, installation card slot and
Fiber coupler, the integrated optical sensor are installed on installation card slot, and the installation card slot and fiber coupler are installed on
In lower case, the upper housing and lower case are connected by a snap, and the integrated optical sensor passes through fiber coupler and guarantor
Inclined optical-fiber connection data handles rear end；
The data processing rear end includes optical signal prosessing module, data collecting card, mainboard, GPS module and power management module,
The optical signal prosessing module acquires the integrated optical sensor of front end, the optical signal prosessing by polarization maintaining optical fibre connection signal
The output end of module and GPS module is electrically connected the input terminal of data collecting card, the data collecting card and power management module
The equal electrically connected mainboard of output end.
2. a kind of Portable transformer substation transient overvoltage real-time monitoring device according to claim 1, which is characterized in that institute
The optical signal prosessing module for stating data processing rear end includes optical signal sending module and optical signal detecting module, the optical signal hair
The input terminal for sending the output end of module to connect integrated optical sensor by polarization maintaining optical fibre；The input of the optical signal detecting module
End connects the output end of integrated optical sensor by polarization maintaining optical fibre, and the output end of the optical signal detecting module is electrically connected data
The input terminal of capture card.
3. a kind of Portable transformer substation transient overvoltage real-time monitoring device according to claim 1, which is characterized in that institute
The upper housing and lower shell surface for stating the probe of signal acquisition front end are coated with room temperature vulcanized silicone rubber coating.
4. a kind of Portable transformer substation transient overvoltage real-time monitoring device according to claim 1, which is characterized in that institute
The probe of signal acquisition front end is stated as butterfly probe.
5. a kind of Portable transformer substation transient overvoltage real-time monitoring device according to claim 1, which is characterized in that institute
It states signal acquisition front end and is provided with A, B, C three-phase.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920315553.4U CN209728044U (en) | 2019-03-13 | 2019-03-13 | A kind of Portable transformer substation transient overvoltage real-time monitoring device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920315553.4U CN209728044U (en) | 2019-03-13 | 2019-03-13 | A kind of Portable transformer substation transient overvoltage real-time monitoring device |
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| CN209728044U true CN209728044U (en) | 2019-12-03 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109709381A (en) * | 2019-03-13 | 2019-05-03 | 清华四川能源互联网研究院 | A kind of Portable transformer substation transient overvoltage real-time monitoring device |
-
2019
- 2019-03-13 CN CN201920315553.4U patent/CN209728044U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109709381A (en) * | 2019-03-13 | 2019-05-03 | 清华四川能源互联网研究院 | A kind of Portable transformer substation transient overvoltage real-time monitoring device |
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