CN215493946U - High-voltage overhead line partial discharge accurate positioning device - Google Patents
High-voltage overhead line partial discharge accurate positioning device Download PDFInfo
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- CN215493946U CN215493946U CN202122019010.8U CN202122019010U CN215493946U CN 215493946 U CN215493946 U CN 215493946U CN 202122019010 U CN202122019010 U CN 202122019010U CN 215493946 U CN215493946 U CN 215493946U
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y04—INFORMATION OR COMMUNICATION TECHNOLOGIES HAVING AN IMPACT ON OTHER TECHNOLOGY AREAS
- Y04S—SYSTEMS INTEGRATING TECHNOLOGIES RELATED TO POWER NETWORK OPERATION, COMMUNICATION OR INFORMATION TECHNOLOGIES FOR IMPROVING THE ELECTRICAL POWER GENERATION, TRANSMISSION, DISTRIBUTION, MANAGEMENT OR USAGE, i.e. SMART GRIDS
- Y04S10/00—Systems supporting electrical power generation, transmission or distribution
- Y04S10/50—Systems or methods supporting the power network operation or management, involving a certain degree of interaction with the load-side end user applications
- Y04S10/52—Outage or fault management, e.g. fault detection or location
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Abstract
The utility model relates to the technical field of power detection equipment, in particular to a high-voltage overhead line partial discharge accurate positioning device which comprises a sensor panel, a host and a liquid crystal display panel which are integrally arranged, wherein an ultrasonic positioning sensor, an ultrahigh frequency sensor, a laser ranging sensor and a high-definition camera are arranged on the sensor panel. The ultrasonic positioning sensor, the ultrahigh frequency sensor, the laser ranging sensor and the high-definition camera are matched with each other to work, the collected position data of the partial discharge fault point is transmitted to the host, and the specific position of the fault point is visually presented through the liquid crystal display panel. The high-voltage overhead line partial discharge accurate positioning device provided by the utility model is convenient to operate, high in detection sensitivity and accurate in partial discharge fault point positioning, and can effectively solve the technical problems of low detection sensitivity, inaccurate fault positioning and easy interference of a detection result by environmental factors in the conventional high-voltage overhead line partial discharge fault detection device.
Description
Technical Field
The utility model relates to the technical field of power detection equipment, in particular to a high-voltage overhead line partial discharge accurate positioning device.
Background
The high-voltage overhead line is the most common conductive mode in the power transformation, transmission and distribution processes, and is easily subjected to the influence of the environment, and partial discharge faults occur at the joints of the leads to cause transmission accidents, so that the safe and stable operation of a power grid is influenced. The current detection method for the partial discharge fault of the high-voltage overhead line mainly comprises the following steps: ultrasonic detection method, ultrahigh frequency detection method, ultraviolet detection method, and high frequency current detection method. The ultrasonic detection method adopts a single-channel or double-channel detection mode, the error of fault location accuracy is about 1m, the method is only suitable for overhead lines with sparse nodes, obvious faults and small external interference, detection personnel need to judge the position of a fault point by years of operation experience after the fault point is detected, great inconvenience is brought to operation detection and fault location, lines at the joints of line branches, access transformers or vacuum circuit breakers of 10KV and 35KV high-voltage overhead lines are often dense and have strong interference, and the existing single-channel or double-channel sensors are difficult to accurately locate the position of a partial discharge fault point. The ultrahigh frequency detection method can only judge whether partial discharge exists near the high-voltage overhead line and is easily interfered by environmental factors. The ultraviolet detection method technology is not mature at present, the detection sensitivity of the sensor is low, and a large detection blind area exists during fault detection because the ultraviolet propagation speed is close to the electromagnetic wave speed. The high-frequency current detection method is only suitable for armored high-voltage cables with ground wires, the fault location range is the whole cable, and the accurate position of a fault point cannot be located. As shown in fig. 1, an overhead line inspector uses an existing detection method to detect whether a cable has an partial discharge fault at a high-voltage overhead line junction, and determines the partial discharge position according to experience.
SUMMERY OF THE UTILITY MODEL
Aiming at the defects in the prior art, the utility model provides the high-voltage overhead line partial discharge accurate positioning device, which can realize accurate positioning of the partial discharge fault point position of the high-voltage overhead line, visually display the specific position of the fault point on the display screen, is simple and convenient to operate and high in detection sensitivity, and can effectively solve the technical problems that the existing high-voltage overhead line partial discharge fault detection device is low in detection sensitivity, not accurate in fault positioning, easy to cause detection errors due to the fact that a detection result is interfered by environmental factors and the like.
In order to achieve the technical purpose, the utility model adopts the following technical scheme:
a high-voltage overhead line partial discharge accurate positioning device comprises a sensor panel, a host and a liquid crystal display panel which are integrally arranged, wherein an ultrasonic positioning sensor, an ultrahigh frequency sensor, a laser ranging sensor and a high-definition camera are arranged on the sensor panel;
the ultrasonic positioning sensor is used for logically analyzing the spatial position of the partial discharge fault ultrasonic; the ultrahigh frequency sensor is used for acquiring electromagnetic wave signals emitted by partial discharge faults; the laser ranging sensor is used for testing the distance between a collecting point of the device and a local discharge fault point to be tested; the high-definition camera is used for identifying and capturing the accurate position of a fault point in a long distance by using an object identification algorithm; the host is used for receiving and analyzing data transmitted by the ultrasonic positioning sensor, the ultrahigh frequency sensor, the laser ranging sensor and the high-definition camera and transmitting the position information of the fault point to the liquid crystal display panel; the liquid crystal display panel is embedded on the back of the host and used for visually displaying and positioning the specific position of the partial discharge fault point.
Furthermore, 13 ultrasonic positioning sensors are arranged on the sensor panel, and a radial concentric circle arrangement mode is adopted, wherein 1 ultrasonic positioning sensor is used as a circle center, 4 ultrasonic positioning sensors are distributed on an inner layer concentric circle at equal intervals, the rest 8 ultrasonic positioning sensors are distributed on an outer layer concentric circle at equal intervals, and the distance between two adjacent sensors on each layer of concentric circle is 7 cm.
Further, set up 2 superfrequency sensors, 1 laser rangefinder sensor and 1 high definition digtal camera on the sensor panel, superfrequency sensor is located centre of a circle department respectively ultrasonic positioning sensor's left and right both sides, high definition digtal camera and laser rangefinder sensor are located centre of a circle department respectively ultrasonic positioning sensor's upper and lower both sides.
Further, the ultrasonic positioning sensor adopts a high-speed 16-channel acquisition chip.
Further, the high definition camera has a zooming function.
Further, the liquid crystal display panel adopts a 12-inch high-definition liquid crystal display screen.
Compared with the existing high-voltage overhead line partial discharge fault detection device, the partial discharge accurate positioning device provided by the utility model has the following beneficial effects:
(1) the utility model has simple and convenient operation, high detection sensitivity and accurate fault location, integrates the functions of the ultrasonic positioning sensor, the ultrahigh frequency sensor, the laser ranging sensor and each acquisition unit of the high-definition camera, reduces the interference of external electromagnetic waves and sound waves, can accurately locate the position of a partial discharge fault point, clearly and conveniently displays the position of the fault point to a detector through the integrated embedded liquid crystal display panel, is convenient and quick to use and can improve the transportation and detection speed.
(2) The utility model adopts the 13-channel ultrasonic positioning sensor to acquire and analyze the spatial position of the ultrasonic wave of the partial discharge fault point, effectively eliminates external interference through a special arrangement mode and by utilizing a statistical time difference method, and improves the acquisition effect of the sensor.
(3) According to the utility model, the ultrahigh frequency sensor and the ultrasonic positioning sensor are combined, so that external electromagnetic and acoustic wave interference is further reduced, the false alarm of partial discharge fault detection is reduced, the detection blind area is reduced, the partial discharge fault position can be accurately positioned in a high-energy noise environment, the anti-interference performance is good, and the detection accuracy is better than that of a single-function partial discharge detection method.
(4) According to the utility model, the laser ranging sensor and the ultrasonic positioning sensor are combined, so that fault capture points are increased, the accuracy of ultrasonic positioning calculation is improved, and the acquisition and calculation speed is increased.
(5) The partial discharge positioning method and the partial discharge positioning device adopt the zoom high-definition camera to remotely check the partial discharge fault point, the zoom camera has the functions of identifying and capturing common overhead electrical equipment, and the partial discharge positioning accuracy can be improved by combining the zoom high-definition camera with the ultrasonic positioning sensor.
Drawings
The accompanying drawings, which are included to provide a further understanding of the utility model and are incorporated in and constitute a part of this specification, illustrate embodiments of the utility model and together with the description serve to explain the principles of the utility model and not to limit the utility model. In the drawings:
FIG. 1 is a schematic diagram of a prior art method for detecting partial discharge faults of a high-voltage overhead line;
FIG. 2 is a schematic structural diagram of a high-voltage overhead line partial discharge precise positioning device according to the present invention;
fig. 3 is a schematic view of the structure of the sensor panel of the present invention.
The reference numbers in the figures illustrate: 1. a sensor panel; 2. a liquid crystal display panel; 3. an ultrasonic positioning sensor; 4. an ultrahigh frequency sensor; 5. a laser ranging sensor; 6. a high-definition camera; 7. a partial discharge location; 8. detecting personnel; 9. high voltage overhead line junctions.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Examples
As shown in fig. 2, the high voltage overhead line partial discharge precise positioning device provided by this embodiment includes an integrally disposed sensor panel 1, a host, and a 12-inch liquid crystal display panel 2 embedded in the back of the host. As shown in fig. 3, the sensor panel 1 is provided with 13 ultrasonic positioning sensors 3, two ultrahigh frequency sensors 4, a laser ranging sensor 5 and a high-definition camera 6 with a zooming function. The ultrasonic positioning sensors 3 adopt high-speed 16-channel acquisition chips of ST company, are distributed on the sensor panel 1 in a radial concentric circle arrangement mode, wherein 1 ultrasonic positioning sensor 3 is used as a circle center, 4 ultrasonic positioning sensors 3 are distributed on an inner layer concentric circle at equal intervals, the rest 8 ultrasonic positioning sensors 3 are distributed on an outer layer concentric circle at equal intervals, and the distance between two adjacent sensors on each layer of concentric circle is 7 cm. The ultrahigh frequency sensor 4 is respectively positioned at the left side and the right side of the ultrasonic positioning sensor 3 at the circle center, and the high-definition camera 6 and the laser ranging sensor 5 are respectively positioned at the upper side and the lower side of the ultrasonic positioning sensor 3 at the circle center.
The functions of each unit in the positioning device of the utility model are as follows:
the ultrasonic positioning sensor 3 is used for logically analyzing the spatial position of the partial discharge fault ultrasonic wave.
The ultrahigh frequency sensor 4 is used for collecting electromagnetic wave signals emitted by partial discharge faults and is matched with the ultrasonic positioning sensor 3, so that the interference of external electromagnetic waves and sound waves is reduced, and the accuracy of partial discharge fault detection is improved.
The laser ranging sensor 5 is used for measuring the distance between the acquisition point of the device and the partial discharge fault point to be measured, so that the accuracy of the ultrasonic positioning sensor 3 in positioning the partial discharge position is improved, the acquisition and calculation speed is improved, and the fault capture point is increased.
The high-definition camera 6 utilizes an object recognition algorithm for remotely recognizing and capturing the accurate position of a fault point, and the acquired and analyzed imaging data is fused with the acquisition unit of the ultrasonic positioning sensor 3 to accurately position the position of the partial discharge fault.
The host is used for receiving and analyzing data transmitted by the ultrasonic positioning sensor 3, the ultrahigh frequency sensor 4, the laser ranging sensor 5 and the high-definition camera 6 and transmitting the position information of the fault point to the liquid crystal display panel 2.
The liquid crystal display panel 2 is used for visually displaying and positioning the specific position of the partial discharge fault point, and the accuracy and the convenience of detection are improved.
When the high-voltage overhead line partial discharge accurate positioning device is used, a detector holds the high-voltage overhead line partial discharge accurate positioning device by hands to accurately detect the fault position of partial discharge occurring in the high-voltage overhead line, all sensors and cameras in the sensor panel 1 work in a matched mode, position data of a partial discharge fault point is transmitted to a host, the accurate position of the fault point is directly displayed through the liquid crystal display panel 2, and therefore the detector can clearly and conveniently obtain the specific position of the fault point.
While the preferred embodiments of the present invention have been illustrated and described in detail, it should be understood that modifications and variations can be effected by one skilled in the art in light of the above teachings without undue experimentation. Therefore, the technical solutions available to those skilled in the art through logic analysis, reasoning and limited experiments based on the prior art according to the concept of the present invention should be within the scope of protection defined by the claims.
Claims (6)
1. The high-voltage overhead line partial discharge accurate positioning device is characterized by comprising a sensor panel (1), a host and a liquid crystal display panel (2) which are integrally arranged, wherein an ultrasonic positioning sensor (3), an ultrahigh frequency sensor (4), a laser ranging sensor (5) and a high-definition camera (6) are arranged on the sensor panel (1);
the ultrasonic positioning sensor (3) is used for logically analyzing the spatial position of the partial discharge fault ultrasonic wave; the ultrahigh frequency sensor (4) is used for collecting electromagnetic wave signals emitted by partial discharge faults; the laser ranging sensor (5) is used for testing the distance between the acquisition point of the device and the local discharge fault point to be tested; the high-definition camera (6) is used for identifying and capturing the accurate position of a fault point in a long distance by using an object identification algorithm; the host is used for receiving and analyzing data transmitted by the ultrasonic positioning sensor (3), the ultrahigh frequency sensor (4), the laser ranging sensor (5) and the high-definition camera (6), and transmitting position information of a fault point to the liquid crystal display panel (2); the liquid crystal display panel (2) is arranged on the back of the host in an embedded mode and used for visually displaying and positioning the specific position of the partial discharge fault point.
2. The device for accurately positioning the partial discharge of the high-voltage overhead line according to claim 1, wherein 13 ultrasonic positioning sensors (3) are arranged on the sensor panel (1) and are arranged in a radial concentric circle manner, wherein 1 ultrasonic positioning sensor (3) is used as a center of the circle, 4 ultrasonic positioning sensors (3) are distributed on an inner concentric circle at equal intervals, the remaining 8 ultrasonic positioning sensors (3) are distributed on an outer concentric circle at equal intervals, and the distance between two adjacent sensors on each layer of concentric circle is 7 cm.
3. The device for accurately positioning the partial discharge of the high-voltage overhead line according to claim 2, wherein 2 ultrahigh frequency sensors (4), 1 laser ranging sensor (5) and 1 high-definition camera (6) are arranged on the sensor panel (1), the ultrahigh frequency sensors (4) are respectively positioned at the left side and the right side of the ultrasonic positioning sensor (3) at the center of a circle, and the high-definition camera (6) and the laser ranging sensor (5) are respectively positioned at the upper side and the lower side of the ultrasonic positioning sensor (3) at the center of a circle.
4. The device for accurately positioning the partial discharge of the high-voltage overhead line according to claim 2, wherein the ultrasonic positioning sensor (3) adopts a high-speed 16-channel acquisition chip.
5. The device for accurately positioning the partial discharge of the high-voltage overhead line according to claim 1, wherein the high-definition camera (6) has a zooming function.
6. The device for accurately positioning the partial discharge of the high-voltage overhead line according to claim 1, wherein the liquid crystal display panel (2) adopts a 12-inch high-definition liquid crystal display screen.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122019010.8U CN215493946U (en) | 2021-08-25 | 2021-08-25 | High-voltage overhead line partial discharge accurate positioning device |
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| CN202122019010.8U CN215493946U (en) | 2021-08-25 | 2021-08-25 | High-voltage overhead line partial discharge accurate positioning device |
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| CN215493946U true CN215493946U (en) | 2022-01-11 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20210257197A1 (en) * | 2020-02-19 | 2021-08-19 | Tokyo Electron Limited | Substrate processing method, gas flow evaluation substrate and substrate processing apparatus |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20210257197A1 (en) * | 2020-02-19 | 2021-08-19 | Tokyo Electron Limited | Substrate processing method, gas flow evaluation substrate and substrate processing apparatus |
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