CN212514834U - Power grid fault detection device - Google Patents
Power grid fault detection device Download PDFInfo
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- CN212514834U CN212514834U CN202020328457.6U CN202020328457U CN212514834U CN 212514834 U CN212514834 U CN 212514834U CN 202020328457 U CN202020328457 U CN 202020328457U CN 212514834 U CN212514834 U CN 212514834U
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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 discloses a power grid fault detection device, a current acquisition unit and a voltage acquisition unit are installed in a power transmission line, the output end of the current acquisition unit and the output end of the voltage acquisition unit are connected with the input end of a waveform fault analysis device through a waveform conversion unit, the output end of the waveform fault analysis device is connected with the input end of an upper computer, the output end of the upper computer is connected with a fault waveform characteristic library of the power grid, the current acquisition unit and the voltage acquisition unit are respectively used for detecting a current analog signal and a voltage analog signal of the power transmission line and converting the current analog signal and the voltage analog signal into a current digital signal and a voltage analog signal to be input into the waveform fault analysis device, the waveform fault analysis device compares the input current digital signal and the voltage analog signal with a standard waveform stored in a system to determine a fault signal, and the upper computer is used for receiving the fault signal and diagnosing the fault through a fault waveform feature library of the power grid.
Description
Technical Field
The utility model relates to a transmission of electricity detects technical field, concretely relates to electric wire netting fault detection device.
Background
With the rapid expansion of a transmission line network, the working condition of a transmission system becomes more complex, the impact response generated in the actual operation often causes huge damage to the power grid, even influences the stable operation of the power grid, and remedial measures cannot be taken after the power grid fails.
Disclosure of Invention
The utility model provides a grid fault detection device, it can realize detecting, the early warning to transmission line's electric current under the condition of not having a power failure to can take remedial action effectively and take precautions against.
The utility model adopts the following technical scheme: a power grid fault detection device comprises a current acquisition unit, a voltage acquisition unit, a waveform fault analysis device, a waveform conversion unit, an upper computer and a fault waveform feature library of a power grid, wherein the current acquisition unit and the voltage acquisition unit are installed in the power transmission line, the output end of the current acquisition unit and the output end of the voltage acquisition unit are connected with the input end of the waveform fault analysis device through the waveform conversion unit, the output end of the waveform fault analysis device is connected with the input end of the upper computer, the output end of the upper computer is connected with the fault waveform feature library of the power grid, the current acquisition unit and the voltage acquisition unit are respectively used for detecting current analog signals and voltage analog signals of the power transmission line and converting the current analog signals and the voltage analog signals into current digital signals and voltage analog signals to be input to the waveform fault analysis device, and the waveform fault analysis device carries out input on the current digital signals and the voltage analog signals and standard waveforms stored in the And the upper computer is used for receiving the fault signal to locate a fault point and carrying out fault diagnosis through a fault waveform feature library of the power grid.
The waveform fault analysis device is connected with the upper computer through a wireless network or Bluetooth. And the waveform fault analysis device is connected with the upper computer through a wireless network established by an Ethernet card or a wireless network card. The waveform fault analysis device comprises a current detection unit, a voltage detection unit, a comparison analysis unit, a storage unit and a sending unit, wherein the current detection unit and the voltage detection unit are sequentially connected with the comparison analysis unit, the storage unit and the sending unit, and the current detection unit and the voltage detection unit are used for analyzing and comparing detected signals with stored standard waveforms through the comparison analysis unit, then storing the compared fault signals into the storage unit and sending the signals through the sending unit. The upper computer comprises a receiving unit and a line fault positioning unit, the receiving unit is connected with the line fault positioning unit, and the receiving unit receives the fault signal and carries out fault positioning through the line fault positioning unit to determine the reason of the fault.
Compared with the prior art, the utility model, its beneficial effect lies in:
after the technical scheme is adopted, the utility model discloses not only convenient operation, simple structure can confirm the type and the place of trouble moreover effectively, is convenient for take measures, and the troubleshooting has practiced thrift manpower and material resources, has improved the efficiency of maintenance.
Drawings
Fig. 1 is a schematic structural view of the present invention;
fig. 2 is a block diagram of the waveform fault analysis apparatus of the present invention;
fig. 3 is a block diagram of the upper computer of the present invention.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.
Example (b):
in fig. 1, 2 and 3, the utility model provides a grid fault detection device, which comprises a current collection unit and a voltage collection unit, a waveform fault analysis device, a waveform conversion unit, a fault waveform feature library of an upper computer and a grid, wherein the current collection unit and the voltage collection unit are installed in a power transmission line, the output end of the current collection unit and the output end of the voltage collection unit are connected with the input end of the waveform fault analysis device through the waveform conversion unit, the output end of the waveform fault analysis device is connected with the input end of the upper computer, the output end of the upper computer is connected with the fault waveform feature library of the grid, the current collection unit and the voltage collection unit are respectively used for detecting the current analog signal and the voltage analog signal of the power transmission line and converting the current analog signal and the voltage analog signal into a current digital signal and a voltage analog signal to be input to the waveform fault analysis device, the waveform fault analysis device comprises a current detection unit, a voltage detection unit, a comparison analysis unit, a storage unit and a sending unit, wherein the current detection unit and the voltage detection unit are sequentially connected with the comparison analysis unit, the storage unit and the sending unit, the current detection unit and the voltage detection unit analyze and compare detected signals with stored standard waveforms through the comparison analysis unit and then analyze and compare the compared signals with the stored standard waveforms The upper computer comprises a receiving unit and a line fault positioning unit, the receiving unit is connected with the line fault positioning unit, and the receiving unit receives the fault signal and performs fault positioning through the line fault positioning unit to determine the fault reason.
Claims (5)
1. A power grid fault detection device is characterized by comprising a current acquisition unit, a voltage acquisition unit, a waveform fault analysis device, a waveform conversion unit, an upper computer and a fault waveform feature library of a power grid; the current acquisition unit and the voltage acquisition unit are installed in a power transmission line, the output end of the current acquisition unit and the output end of the voltage acquisition unit are respectively connected with the input end of a waveform fault analysis device through a waveform conversion unit, the output end of the waveform fault analysis device is connected with the input end of an upper computer, and the output end of the upper computer is connected with a fault waveform feature library of a power grid; the system comprises a current acquisition unit, a voltage acquisition unit, a waveform fault analysis device, a host computer and a power grid, wherein the current acquisition unit and the voltage acquisition unit are respectively used for detecting current analog signals and voltage analog signals of the power transmission line, converting the current analog signals and the voltage analog signals into current digital signals and voltage analog signals, inputting the current digital signals and the voltage analog signals into the waveform fault analysis device, the waveform fault analysis device compares the input current digital signals and voltage analog signals with standard waveforms stored in the system to determine fault signals, and the host computer is used for receiving the fault signals to position fault points and carry out fault diagnosis through a fault waveform feature library of the power grid.
2. The grid fault detection device according to claim 1, wherein the waveform fault analysis device is connected to the upper computer through a wireless network or a bluetooth connection.
3. The power grid fault detection device according to claim 1, wherein the waveform fault analysis device is connected to the upper computer through a wireless network established by an ethernet card or a wireless network card.
4. The grid fault detection device according to claim 1, 2 or 3, wherein the waveform fault analysis device comprises a current detection unit, a voltage detection unit, a comparison analysis unit, a storage unit and a transmission unit, the current detection unit and the voltage detection unit are sequentially connected with the comparison analysis unit, the storage unit and the transmission unit, and the current detection unit and the voltage detection unit analyze and compare a detected signal with a stored standard waveform through the comparison analysis unit, store a compared fault signal into the storage unit and transmit the signal through the transmission unit.
5. The power grid fault detection device according to claim 4, wherein the upper computer comprises a receiving unit and a line fault positioning unit, the receiving unit is connected with the line fault positioning unit, and the receiving unit receives the fault signal, performs fault positioning through the line fault positioning unit, and determines a cause of the fault.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020328457.6U CN212514834U (en) | 2020-03-17 | 2020-03-17 | Power grid fault detection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020328457.6U CN212514834U (en) | 2020-03-17 | 2020-03-17 | Power grid fault detection device |
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| CN212514834U true CN212514834U (en) | 2021-02-09 |
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| CN202020328457.6U Active CN212514834U (en) | 2020-03-17 | 2020-03-17 | Power grid fault detection device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113092940A (en) * | 2021-04-08 | 2021-07-09 | 云南电网有限责任公司电力科学研究院 | Fault detection method of power transmission line icing monitoring device |
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2020
- 2020-03-17 CN CN202020328457.6U patent/CN212514834U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113092940A (en) * | 2021-04-08 | 2021-07-09 | 云南电网有限责任公司电力科学研究院 | Fault detection method of power transmission line icing monitoring device |
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