CN111337080A - Distribution transformer state on-line measuring system - Google Patents
Distribution transformer state on-line measuring system Download PDFInfo
- Publication number
- CN111337080A CN111337080A CN202010214352.2A CN202010214352A CN111337080A CN 111337080 A CN111337080 A CN 111337080A CN 202010214352 A CN202010214352 A CN 202010214352A CN 111337080 A CN111337080 A CN 111337080A
- Authority
- CN
- China
- Prior art keywords
- wireless
- passive sensor
- reader
- antenna
- distribution transformer
- 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
Images
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01D—MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
- G01D21/00—Measuring or testing not otherwise provided for
- G01D21/02—Measuring two or more variables by means not covered by a single other subclass
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01D—MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
- G01D5/00—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable
- G01D5/54—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable using means specified in two or more of groups G01D5/02, G01D5/12, G01D5/26, G01D5/42, and G01D5/48
- G01D5/62—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable using means specified in two or more of groups G01D5/02, G01D5/12, G01D5/26, G01D5/42, and G01D5/48 using wave or particle radiation means not covered by group G01D5/58
-
- G—PHYSICS
- G08—SIGNALLING
- G08C—TRANSMISSION SYSTEMS FOR MEASURED VALUES, CONTROL OR SIMILAR SIGNALS
- G08C17/00—Arrangements for transmitting signals characterised by the use of a wireless electrical link
- G08C17/02—Arrangements for transmitting signals characterised by the use of a wireless electrical link using a radio link
Abstract
The invention provides a distribution transformer state on-line detection system, comprising: the system comprises a surface acoustic wave wireless passive sensor 1 and a wireless collector 2; the surface acoustic wave wireless passive sensor 1 is arranged on a distribution transformer, and the wireless collector 2 communicates with the surface acoustic wave wireless passive sensor 1 in a wireless mode to acquire state information of the transformer; the wireless collector 2 supports online remote monitoring in a wired or wireless mode, and uses the received transformer state information for online remote monitoring. The invention can provide effective reference information for the on-line monitoring of the real-time running state of the distribution transformer, and can obviously reduce the labor cost and time cost of regular manual inspection and the hidden danger of damaging the running safety of the distribution network caused by untimely inspection.
Description
Technical Field
The invention relates to the technical field of on-line monitoring of power distribution equipment, in particular to an on-line detection system for the state of a distribution transformer. In particular, the invention relates to an online detection system for the state of a transformer based on a surface acoustic wave wireless passive sensing technology, in particular to an online detection system for the temperature information of the inlet and outlet wire ends of a distribution transformer and the oil level and temperature information of an oil immersed transformer.
Background
Distribution transformers in the distribution network are devices for converting electric energy in high-voltage power networks such as 10KV or 20KV into electric energy with lower voltage, and are distributed in the whole distribution network system in a large number in a scattered manner. Problems of overlarge power load, uneven three-phase power load, poor heat dissipation and the like are possible to bring hidden troubles to the use of a distribution transformer in a power distribution network. Therefore, the temperature of the inlet and outlet wire ends of the distribution transformer in the power distribution network and the state information such as the oil temperature, the oil level and the like of the oil-immersed transformer oil can be physical quantities capable of quantitatively representing the operation condition of the distribution transformer in the current power distribution network. The current technical means for acquiring the information is regular manual inspection, and temperature information is acquired by using infrared temperature measuring equipment while oil level judgment is carried out by observing an oil level floating window. The state information acquisition period is long, and real-time online detection cannot be realized. Meanwhile, distribution transformers in the power distribution network are widely distributed and are huge in quantity, the manpower inspection cost is high, and the inspection effect cannot be guaranteed.
Patent document CN110207784A (application number: 201910630100.5) discloses a transformer oil level warning method, device and terminal equipment, wherein the method comprises the following steps: judging whether the first oil level information is abnormal or not according to the first oil level information of the transformer conservator, if so, acquiring an infrared oil level image of the transformer conservator, which is sent by an infrared image acquisition device, identifying the infrared oil level image, and determining second oil level information of the transformer conservator; judging whether the oil level of the transformer oil conservator is abnormal or not; and if the oil level is abnormal, determining the reason of the oil level abnormality according to the first oil level information and the second oil level information, and generating alarm information.
Disclosure of Invention
Aiming at the defects in the prior art, the invention aims to provide an online detection system for the state of a distribution transformer.
The invention provides a distribution transformer state online detection system, which comprises: a surface acoustic wave wireless passive sensor and a wireless collector;
the wireless passive sensor of the surface acoustic wave is arranged on the distribution transformer, and the wireless collector communicates with the wireless passive sensor of the surface acoustic wave in a wireless mode to acquire the state information of the transformer;
the wireless collector supports online remote monitoring in a wired or wireless mode, and the received transformer state information is used for online remote monitoring.
Preferably, the wireless collector comprises: a reader, a reader antenna;
the reader antenna is arranged opposite to the surface wave wireless passive sensor and connected with the reader, and the reader and the surface wave wireless passive sensor interactively acquire transformer state information through the reader antenna;
after receiving the state information of the transformer, the reader carries out corresponding protocol conversion and then carries out background transmission in a wired or wireless mode, thereby realizing remote online monitoring.
Preferably, the surface acoustic wave wireless passive sensor is arranged on an inlet and outlet wire end of the distribution transformer and in an oil level gauge of the oil-immersed transformer.
Preferably, the transformer state information includes: temperature information of the wire inlet and outlet ends of the transformer, oil temperature information and oil level information of the oil-immersed transformer;
the transformer business turn over line end includes: phase A, phase B, phase C and zero line.
Preferably, the wireless collector comprises: the wireless monitoring system comprises a collector antenna, a wireless transceiving module, a processing module, a control module and a communication module;
the control module receives an acquisition command of the communication module, sends a control command to the wireless transceiver module according to the acquisition command, and the wireless transceiver module is communicated with the surface acoustic wave wireless passive sensor through the collector antenna;
the wireless transceiver module receives a sensing signal sent by the surface acoustic wave wireless passive sensor and sends the sensing signal to the control module, and the control module receives the sensing signal and then sends the sensing signal to the processing module;
the processing module obtains a processing result through processing and judging, and sends the processing result to the control module;
and after receiving the processing result, the control module sends the processing result to the communication module.
Preferably, the reader antenna is connected with the reader through a feeder line.
Preferably, the surface acoustic wave wireless passive sensor comprises a sensor antenna and a passive sensor chip; the sensor antenna is electrically connected to the passive sensor chip.
Preferably, the passive sensor chip performs interconversion of electrical signals and mechanical waves.
Preferably, the reader sends an inquiry signal through the reader antenna, and the inquiry signal is transmitted to the passive sensor chip through the sensor antenna;
the passive sensor chip converts the electromagnetic wave signal of the query signal into mechanical wave to propagate in the passive sensor chip, and reads the state information of the distribution transformer of the passive sensor chip, the surface acoustic wave is converted into electromagnetic wave again by the passive sensor chip, the electromagnetic wave is wirelessly transmitted through the sensor antenna to generate an echo signal, the echo signal is received by the reader antenna and transmitted to the reader, and the reader analyzes the parameter of the echo signal to acquire the state information of the distribution transformer.
Compared with the prior art, the invention has the following beneficial effects:
1. the invention ensures the operation safety of the power distribution network, improves the working efficiency and reduces the inspection cost.
2. The on-line detection system for the state of the distribution transformer based on the surface acoustic wave wireless passive sensing technology, provided by the invention, has the advantages that the passive sensor chip has high temperature resistance, is based on the surface acoustic wave principle, does not contain electronic components, and can achieve the temperature measurement range of-40 ℃ to 160 ℃.
3. The passive sensor chip is directly arranged in the inlet and outlet wire end head and the oil level gauge of the distribution transformer, so that the measured state information is real and reliable, meanwhile, the encapsulation of the sensor chip ensures the air tightness, and the service life is not influenced when the sensor chip is immersed in transformer oil.
4. The sensor antenna and the collector antenna are matched, so that the transmission stability is ensured.
5. The state information acquired by the invention can be remotely transmitted in various multi-channel modes such as wired mode, wireless mode and the like, and the possibility is provided for customized difference remote detection and intelligent analysis.
6. The invention can provide effective reference information for the on-line monitoring of the real-time running state of the distribution transformer, and can obviously reduce the labor cost and time cost of regular manual inspection and the hidden danger of damaging the running safety of the distribution network caused by untimely inspection.
Drawings
Other features, objects and advantages of the invention will become more apparent upon reading of the detailed description of non-limiting embodiments with reference to the following drawings:
FIG. 1 is a schematic structural diagram of an online detection system for status information of a distribution transformer according to the present invention;
FIG. 2 is a schematic diagram of the passive sensing of the present invention;
FIG. 3 is a schematic structural diagram of a wireless collector of the present invention;
FIG. 4 is a schematic diagram of a distribution transformer inlet and outlet terminal sensor installation in accordance with the present invention;
FIG. 5 is a schematic diagram of a distribution transformer oil level gauge sensor installation in accordance with the present invention;
fig. 6 is a schematic structural diagram of a system for detecting the state of a distribution transformer on line based on the surface acoustic wave wireless passive sensing technology according to the present invention.
The figures show that:
Detailed Description
The present invention will be described in detail with reference to specific examples. The following examples will assist those skilled in the art in further understanding the invention, but are not intended to limit the invention in any way. It should be noted that it would be obvious to those skilled in the art that various changes and modifications can be made without departing from the spirit of the invention. All falling within the scope of the present invention.
The invention provides a distribution transformer state online detection system, which comprises: the system comprises a surface acoustic wave wireless passive sensor 1 and a wireless collector 2;
the surface acoustic wave wireless passive sensor 1 is arranged on a distribution transformer, and the wireless collector 2 communicates with the surface acoustic wave wireless passive sensor 1 in a wireless mode to acquire state information of the transformer;
the wireless collector 2 supports online remote monitoring in a wired or wireless mode, and uses the received transformer state information for online remote monitoring.
Specifically, the wireless collector 2 includes: a reader 5, a reader antenna 6;
the reader antenna 6 is arranged opposite to the surface wave wireless passive sensor 1, the reader antenna 6 is connected with the reader 5, and the reader 5 and the surface wave wireless passive sensor 1 interactively acquire transformer state information through the reader antenna 6;
after receiving the transformer state information, the reader 5 performs corresponding protocol conversion and performs background transmission in a wired or wireless mode, thereby realizing remote online monitoring.
Specifically, the surface acoustic wave wireless passive sensor 1 is arranged on an inlet and outlet wire end 8 of the distribution transformer and in an oil level gauge 9 of the oil-immersed transformer.
Specifically, the transformer state information includes: temperature information of the wire inlet and outlet ends of the transformer, oil temperature information and oil level information of the oil-immersed transformer;
the transformer business turn over line end includes: phase A, phase B, phase C and zero line.
Specifically, the wireless collector 2 includes: the system comprises a collector antenna 21, a wireless transceiving module 22, a processing module 23, a control module 24 and a communication module 25;
the control module 24 receives the acquisition command of the communication module 25, the control module 24 sends a control command to the wireless transceiver module 22 according to the acquisition command, and the wireless transceiver module 22 communicates with the surface acoustic wave wireless passive sensor 1 through the collector antenna 21;
the wireless transceiver module 22 receives a sensing signal sent by the surface acoustic wave wireless passive sensor 1, and sends the sensing signal to the control module 24, and the control module 24 receives the sensing signal and then sends the sensing signal to the processing module 23;
the processing module 23 obtains a processing result through processing and judging, and sends the processing result to the control module 24;
after receiving the processing result, the control module 24 sends the processing result to the communication module 25.
In particular, the reader antenna 6 is connected to the reader 5 by a feed line 7.
Specifically, the surface acoustic wave wireless passive sensor 1 comprises a sensor antenna 11 and a passive sensor chip 12; the sensor antenna 11 and the passive sensor chip 12 are electrically connected.
Specifically, the passive sensor chip 12 performs interconversion of electrical signals and mechanical waves.
Specifically, the reader 5 sends the query signal 3 through the reader antenna 6, and the query signal 3 is transmitted to the passive sensor chip 12 through the sensor antenna 11;
the passive sensor chip 12 converts the electromagnetic wave signal of the query signal 3 into mechanical wave to propagate inside the passive sensor chip 12, and reads the state information of the distribution transformer of the passive sensor chip 12, the surface acoustic wave is converted into electromagnetic wave again by the passive sensor chip 12, the electromagnetic wave is wirelessly transmitted through the sensor antenna 11 to generate an echo signal 4, the echo signal 4 is received by the reader antenna 6 and transmitted to the reader 5, and the reader 5 analyzes the parameter of the echo signal 4 to acquire the state information of the distribution transformer.
The present invention will be described more specifically below with reference to preferred examples.
Preferred example 1:
as shown in fig. 6, the system for detecting the state of a distribution transformer on line based on the surface acoustic wave wireless passive sensing technology provided by the invention comprises a surface acoustic wave wireless passive sensor 1 and a wireless collector 2;
the surface acoustic wave wireless passive sensor 1 is arranged in an inlet and outlet wire end of the distribution transformer and an oil level gauge of the oil immersed transformer, and the wireless collector is communicated with the surface acoustic wave wireless passive sensor in a wireless or wired mode to acquire state information of the distribution transformer including the temperature of the inlet and outlet wire end and the oil temperature and the oil level of the transformer;
the wireless collector 2 supports remote monitoring, and uses the received state information of the distribution transformer for remote monitoring.
Specifically, the on-line detection system for the state of the distribution transformer based on the surface acoustic wave wireless passive sensing technology further comprises a reader 5 and a reader antenna 6;
the reader antenna 6 is arranged opposite to the surface acoustic wave wireless passive sensor 1, the reader antenna 6 is connected with the reader 5, and the reader 5 and the surface acoustic wave wireless passive sensor 1 interactively acquire the state information of the transformer through the reader antenna 6;
after receiving the transformer state information, the reader 5 performs corresponding protocol conversion and performs background transmission in a wired or wireless mode, thereby realizing remote online monitoring.
Specifically, the surface acoustic wave wireless passive sensor 1 can be but is not limited to be fastened on an access line terminal 8 of a distribution transformer by using bolts, and can be but is not limited to be mounted in an oil level indicator 9 of an oil-immersed transformer.
Specifically, the transformer state information includes temperature information of the terminal of the incoming and outgoing line (phase a, phase B, phase C, and zero line) of the transformer, and one or more pieces of information of oil temperature information and oil level information of the oil-immersed transformer.
Specifically, the wireless collector 2 includes a collector antenna 21, a wireless transceiver module 22, a processing module 23, a control module 24, and a communication module 25;
the control module 24 receives the acquisition command of the communication module 25, the control module 24 sends a control command to the wireless transceiver module 22 according to the acquisition command, and the wireless transceiver module 22 communicates with the surface acoustic wave wireless passive sensor 1 through the collector antenna 21;
the wireless transceiver module 22 receives a sensing signal sent by the surface acoustic wave wireless passive sensor 1, and sends the sensing signal to the control module 24, and the control module 24 receives the sensing signal and then sends the sensing signal to the processing module 23;
the processing module 23 obtains a processing result through processing and judging, and sends the processing result to the control module 24;
after receiving the processing result, the control module 24 sends the processing result to the communication module 25.
Specifically, the surface acoustic wave wireless passive sensor 1 comprises a sensor antenna 11 and a passive sensor chip 12;
the reader 5 sends a query signal 3 through a reader antenna 6;
the query signal 3 is transmitted to a passive sensor chip 12 through a sensor antenna 11;
the passive sensor chip 12 converts a first electromagnetic wave signal of the query signal 3 into a first mechanical wave signal, and the first mechanical wave signal is converted into a second electromagnetic wave signal after being propagated inside the surface acoustic wave device;
the second electromagnetic wave signal is transmitted to the sensor antenna 11 to generate an echo signal 4, the echo signal 4 is transmitted to the reader 5 through the reader antenna 6, and the reader 5 performs parameter analysis on the echo signal 4 to obtain the state information of the distribution transformer.
In particular, the reader antenna 6 is connected to the reader 5 by a feed line 7.
Preferred example 2:
preferred embodiments of the present invention will be further described with reference to the accompanying drawings. As shown in fig. 1, the invention comprises a wireless collector 2 and a surface acoustic wave wireless passive sensor 1; the wireless collector 2 is communicated with the surface acoustic wave wireless passive sensor 1 in a wireless or wired mode; as shown in fig. 2, the surface acoustic wave wireless passive sensor 1 includes an RFID antenna 11, a passive sensor chip 12; the RFID antenna 11 is electrically connected with the passive sensor chip 12; as shown in fig. 2, the on-line detection system for the state of the distribution transformer based on the surface acoustic wave wireless passive sensing technology further comprises a reader 5, a reader antenna 6 and a feeder 7, wherein the reader antenna 6 is placed right opposite to the surface acoustic wave wireless passive sensor 1. The reader 5 sends a query signal 3 through a reader antenna 6; the query signal 3 is transmitted to a passive sensor chip 12 through a sensor antenna 11; the passive sensor chip 12 converts the electromagnetic wave signal of the query signal 3 into a mechanical wave; the mechanical waves are transmitted inside the passive sensor chip 12; the mechanical wave is converted again into an electromagnetic wave by the passive sensor chip 12.
The electromagnetic waves are wirelessly transmitted through a sensor antenna 11 to generate echo signals 4; the echo signal 4 is received by a reader antenna 6 and transmitted to a reader 5; the reader 5 analyzes the parameters of the echo signals 4; the reader 5 obtains the distribution transformer status information through the passive sensor chip 12. Preferably, the surface acoustic wave wireless passive sensor communicates with the wireless collector in a wireless mode, specifically, the reader antenna emits electromagnetic waves, the surface acoustic wave wireless passive sensor receives the electromagnetic waves to activate the state information of the distribution transformer in the passive sensor chip 12, the sensor antenna carries the state information of the distribution transformer, the electromagnetic waves are used as carriers and are transmitted to the reader antenna, and the reader receives the state information of the distribution transformer.
As shown in fig. 3, the wireless collector 2 includes a collector antenna 21, a wireless transceiver module 22, a processing module 23, a control module 24, and a communication module 25; the control module 24 receives an acquisition command from the communication module 25; the control module 24 controls the wireless transceiver module 22 to communicate with the surface acoustic wave wireless passive sensor 1 through the collector antenna 21; the wireless transceiver module 22 transmits the sensing signal received from the surface acoustic wave wireless passive sensor 1 to the control module 24; the control module 24 transmits the sensing signal to the processing module 23 for processing and distinguishing, and obtains a processing result; the processing module 23 transmits the processing result to the communication module 25 through the control module 24.
The sensor in the surface acoustic wave wireless passive sensor 1 of the present invention does not use a battery or other external power source for power supply, as shown in fig. 2, the sensor antenna 11 is electrically connected with the passive sensor chip 12, and the passive sensor chip 12 is a main passive wireless sensing element, and can complete the mutual conversion of electrical signals and mechanical waves. Reader 5 sends inquiry signal 3 through reader antenna 6, inquiry signal 3 passes through sensor antenna 11 and transmits to passive sensor chip 12, passive sensor chip 12 converts the electromagnetic wave signal of inquiry signal 3 into mechanical wave promptly surface acoustic wave at the inside propagation of passive sensor chip 12, and read passive sensor chip 12's distribution transformer state information, the surface acoustic wave is converted into the electromagnetic wave again by passive sensor chip 12, send through sensor antenna 11 is wireless, generate echo signal 4, echo signal 4 is received by reader antenna 6 and is transmitted to reader 5, reader 5 is to echo signal 4's parameter analysis, acquire distribution transformer state information. In the technical principle, the information of wireless sensing and the transmitted energy are contained in the query signal 3 and the echo signal 4, and the passive sensor, namely the surface acoustic wave wireless passive sensor 1 does not need any battery for power supply. When the electrical connection between the sensor antenna 11 and the passive sensor chip 12 is broken or the sensor antenna 11 is completely shielded, the passive sensor chip 12 cannot receive the query signal 3, the reader 5 cannot receive the echo signal 4, and whether the signal of the passive sensor chip 12 exists or not can be used as a switching value, so that the function of acquiring the state information of the oil level in the transformer is realized.
The working process of the wireless collector 2 is as follows: the control module 24 receives the acquisition command from the communication module 25 and controls the wireless transceiver module 22 to communicate with the passive sensor chip 12 through the collector antenna 21, the wireless transceiver module 22 transmits the received sensing signal to the control module 24, the control module 24 transmits the signal to the processing module 23 for processing and judging, and the processing result is transmitted to the communication module 25 through the control module 24 and transmitted to the background.
In a preferred embodiment of the present invention, passive sensing can be realized by using the above technical principles. It should be noted that the passive sensing method in the present invention is not limited to the above-mentioned principle.
As shown in fig. 4, the saw wireless passive sensor 1 is mounted at a suitable position of the access terminal 8, which can be but is not limited to bolt fastening.
As shown in fig. 5, the passive sensor chip 12 and the sensor antenna 11 may be, but are not limited to, integrated in a distribution transformer oil level gauge, so as to obtain oil temperature and oil level status information of an oil-immersed transformer.
In the embodiment, the running state of the distribution transformer can be read at any time through the remote monitoring system, and relevant measures can be taken if the running state is abnormal.
In the description of the present application, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience in describing the present application and simplifying the description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present application.
Those skilled in the art will appreciate that, in addition to implementing the systems, apparatus, and various modules thereof provided by the present invention in purely computer readable program code, the same procedures can be implemented entirely by logically programming method steps such that the systems, apparatus, and various modules thereof are provided in the form of logic gates, switches, application specific integrated circuits, programmable logic controllers, embedded microcontrollers and the like. Therefore, the system, the device and the modules thereof provided by the present invention can be considered as a hardware component, and the modules included in the system, the device and the modules thereof for implementing various programs can also be considered as structures in the hardware component; modules for performing various functions may also be considered to be both software programs for performing the methods and structures within hardware components.
The foregoing description of specific embodiments of the present invention has been presented. It is to be understood that the present invention is not limited to the specific embodiments described above, and that various changes or modifications may be made by one skilled in the art within the scope of the appended claims without departing from the spirit of the invention. The embodiments and features of the embodiments of the present application may be combined with each other arbitrarily without conflict.
Claims (9)
1. An on-line distribution transformer state detection system, comprising: the system comprises a surface acoustic wave wireless passive sensor (1) and a wireless collector (2);
the surface acoustic wave wireless passive sensor (1) is arranged on a distribution transformer, and the wireless collector (2) is in wireless communication with the surface acoustic wave wireless passive sensor (1) to acquire state information of the transformer;
the wireless collector (2) supports online remote monitoring in a wired or wireless mode, and the received transformer state information is used for online remote monitoring.
2. The distribution transformer state online detection system according to claim 1, wherein the wireless collector (2) comprises: a reader (5), a reader antenna (6);
the reader antenna (6) is arranged opposite to the surface wave wireless passive sensor (1), the reader antenna (6) is connected with the reader (5), and the reader (5) and the surface wave wireless passive sensor (1) interactively acquire transformer state information through the reader antenna (6);
after receiving the transformer state information, the reader (5) performs corresponding protocol conversion and then performs background transmission in a wired or wireless mode, so that remote online monitoring is realized.
3. The on-line distribution transformer state detection system according to claim 1, characterized in that the surface acoustic wave wireless passive sensor (1) is arranged on an inlet and outlet terminal (8) of the distribution transformer and in an oil level gauge (9) of the oil-filled transformer.
4. The distribution transformer state online detection system of claim 1, wherein the transformer state information comprises: temperature information of the wire inlet and outlet ends of the transformer, oil temperature information and oil level information of the oil-immersed transformer;
the transformer business turn over line end includes: phase A, phase B, phase C and zero line.
5. The distribution transformer state online detection system according to claim 1, wherein the wireless collector (2) comprises: the device comprises a collector antenna (21), a wireless transceiving module (22), a processing module (23), a control module (24) and a communication module (25);
the control module (24) receives an acquisition command of the communication module (25), the control module (24) sends a control command to the wireless transceiver module (22) according to the acquisition command, and the wireless transceiver module (22) is communicated with the surface acoustic wave wireless passive sensor (1) through the collector antenna (21);
the wireless transceiving module (22) receives sensing signals sent by the surface acoustic wave wireless passive sensor (1), the sensing signals are sent to the control module (24), and the control module (24) receives the sensing signals and then sends the sensing signals to the processing module (23);
the processing module (23) obtains a processing result through processing and distinguishing and sends the processing result to the control module (24);
and after receiving the processing result, the control module (24) sends the processing result to the communication module (25).
6. The distribution transformer state online detection system according to claim 2, characterized in that the reader antenna (6) is connected with the reader (5) through a feeder (7).
7. The on-line distribution transformer state detection system of claim 2, characterized in that the surface acoustic wave wireless passive sensor (1) comprises a sensor antenna (11), a passive sensor chip (12); the sensor antenna (11) and the passive sensor chip (12) are electrically connected.
8. The distribution transformer state on-line detection system of claim 7, characterized in that the passive sensor chip (12) performs interconversion of electrical signals and mechanical waves.
9. The distribution transformer state online detection system according to claim 8, characterized in that the reader (5) sends the query signal (3) through the reader antenna (6), and the query signal (3) is transmitted to the passive sensor chip (12) through the sensor antenna (11);
the passive sensor chip (12) converts the electromagnetic wave signal of the query signal (3) into mechanical wave to propagate inside the passive sensor chip (12), and reads the state information of the distribution transformer of the passive sensor chip (12), the surface acoustic wave is converted into electromagnetic wave again by the passive sensor chip (12), the electromagnetic wave is wirelessly transmitted through the sensor antenna (11), an echo signal (4) is generated, the echo signal (4) is received by the reader antenna (6) and is transmitted to the reader (5), the reader (5) analyzes the parameters of the echo signal (4), and the state information of the distribution transformer is acquired.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010214352.2A CN111337080A (en) | 2020-03-24 | 2020-03-24 | Distribution transformer state on-line measuring system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010214352.2A CN111337080A (en) | 2020-03-24 | 2020-03-24 | Distribution transformer state on-line measuring system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111337080A true CN111337080A (en) | 2020-06-26 |
Family
ID=71184556
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010214352.2A Pending CN111337080A (en) | 2020-03-24 | 2020-03-24 | Distribution transformer state on-line measuring system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111337080A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112698139A (en) * | 2020-12-28 | 2021-04-23 | 五邑大学 | Transformer remote detection device |
-
2020
- 2020-03-24 CN CN202010214352.2A patent/CN111337080A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112698139A (en) * | 2020-12-28 | 2021-04-23 | 五邑大学 | Transformer remote detection device |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN203479966U (en) | On-line monitoring comprehensive processing unit for partial discharge signals of high-voltage switchgear | |
| CN203490332U (en) | Multifunctional hand-held smart partial discharge detection device | |
| CN103674292A (en) | Temperature detecting method and apparatus for devices of transformer station | |
| CN102129763A (en) | CVT (Capacitor Voltage Transformer) online monitoring system | |
| CN206270201U (en) | Gas density on-line monitoring system and equipment | |
| CN109540328A (en) | Intelligent radio temp measuring system based on passive sensing technology | |
| CN110690763A (en) | Intelligent monitoring device and monitoring method for electric power system | |
| CN107657801A (en) | A kind of data collection and transfering system based on LORA | |
| CN202093670U (en) | Wireless temperature measuring system based on electrical power system | |
| CN107036702A (en) | Substation transformer audio monitoring device | |
| CN210629196U (en) | Intelligent monitoring device for electric power system | |
| CN111337080A (en) | Distribution transformer state on-line measuring system | |
| CN105258811A (en) | ZigBee-based unmanned transformer substation temperature monitoring system | |
| CN203037376U (en) | An operating state monitoring system of a cable connector | |
| CN203984091U (en) | High-voltage switch gear infrared thermal imaging on-line monitoring integrated treatment unit | |
| CN111707913A (en) | Partial discharge detection device of power switch cabinet | |
| CN104391168A (en) | System and method for inspecting grounding current of accessories of single-core cable having voltage grade above 35kV | |
| CN204373809U (en) | A kind of watchband type passive and wireless temperature measurement on-line device | |
| CN201035732Y (en) | Transforming plant power electrical equipment temperature wireless monitoring device | |
| CN207752621U (en) | A kind of data collection and transfering system based on LORA | |
| CN211824544U (en) | Distribution transformer state on-line measuring system | |
| CN104267321A (en) | GIS state monitoring device based on Zigbee wireless networking | |
| CN209786878U (en) | Intelligent power distribution room online monitoring system | |
| CN104236741A (en) | Temperature monitoring device and implementation method for outdoor high-pressure switch | |
| CN104655994B (en) | GIS partial discharge on-line monitoring systems |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |