CN116087865A - Transformer state acquisition end, analysis end and transformer state monitoring method and system - Google Patents

Transformer state acquisition end, analysis end and transformer state monitoring method and system Download PDF

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Publication number
CN116087865A
CN116087865A CN202310109407.7A CN202310109407A CN116087865A CN 116087865 A CN116087865 A CN 116087865A CN 202310109407 A CN202310109407 A CN 202310109407A CN 116087865 A CN116087865 A CN 116087865A
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China
Prior art keywords
data
transformer
state
module
acquisition
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CN202310109407.7A
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Chinese (zh)
Inventor
幸勇
杨衍
刘智俊
蒋凤
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Chengdu Zhaoxin Electronic Technology Co ltd
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Chengdu Zhaoxin Electronic Technology Co ltd
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Priority to CN202310109407.7A priority Critical patent/CN116087865A/en
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    • GPHYSICS
    • G01MEASURING; TESTING
    • G01RMEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R35/00Testing or calibrating of apparatus covered by the other groups of this subclass
    • G01R35/02Testing or calibrating of apparatus covered by the other groups of this subclass of auxiliary devices, e.g. of instrument transformers according to prescribed transformation ratio, phase angle, or wattage rating
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L63/00Network architectures or network communication protocols for network security
    • H04L63/04Network architectures or network communication protocols for network security for providing a confidential data exchange among entities communicating through data packet networks
    • H04L63/0428Network architectures or network communication protocols for network security for providing a confidential data exchange among entities communicating through data packet networks wherein the data content is protected, e.g. by encrypting or encapsulating the payload
    • YGENERAL 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
    • Y04INFORMATION OR COMMUNICATION TECHNOLOGIES HAVING AN IMPACT ON OTHER TECHNOLOGY AREAS
    • Y04SSYSTEMS 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
    • Y04S40/00Systems for electrical power generation, transmission, distribution or end-user application management characterised by the use of communication or information technologies, or communication or information technology specific aspects supporting them
    • Y04S40/20Information technology specific aspects, e.g. CAD, simulation, modelling, system security

Abstract

The embodiment of the application discloses a mutual inductor state acquisition end, an analysis end, a mutual inductor state monitoring method and a mutual inductor state monitoring system, relates to the technical field of mutual inductors, and comprises the following steps: the system comprises an acquisition module, an encryption module and a sending module, wherein the acquisition module is arranged in the transformer and is used for acquiring working state data of the transformer; the encryption module is used for encrypting the working state data to obtain an encrypted data packet; the sending module is used for sending the encrypted data packet. According to the method, the acquisition module is arranged in the transformer equipment, the real-time working state of the transformer can be reflected more truly by the data acquired by the inside of the transformer, the monitoring precision is improved, the acquired data are encrypted and sent at the acquisition end, the risks of data leakage and tampering are reduced, the safety of the data in the transmission process is guaranteed, the monitoring safety is enhanced, and the effect of monitoring the state of the transformer is effectively improved.

Description

Transformer state acquisition end, analysis end and transformer state monitoring method and system
Technical Field
The application relates to the technical field of transformers, in particular to a transformer state acquisition end, an analysis end, a transformer state monitoring method and a system.
Background
The transformer is a transformer device for instruments, is mainly used for supplying power to metering equipment, and the running state of the transformer device directly influences the metering accuracy, so that the monitoring of the running state of the transformer device is very important.
Firstly, the existing transformer management unit technology only monitors parameters of transformer equipment in operation, a data acquisition sensor is arranged on a secondary pile head of the transformer equipment, and the operation data acquired by an external wiring cannot completely and truly reflect the state of the transformer in operation under the influence of external factors; secondly, the existing transformer management unit is high in opening degree in the process of collecting power grid data and data transmission, and the possibility of data leakage exists. The effects of both aspects result in the prior art being less effective for transformer condition monitoring.
Disclosure of Invention
The main aim of the application is to provide a transformer state acquisition end, an analysis end, a transformer state monitoring method and a system, and aims to solve the problem of poor transformer state monitoring effect in the prior art.
In order to achieve the above purpose, the technical solution adopted in the embodiments of the present application is as follows:
in a first aspect, an embodiment of the present application provides a transformer state acquisition end, including:
the acquisition module is arranged in the transformer and is used for acquiring working state data of the transformer;
the encryption module is used for encrypting the working state data to obtain an encrypted data packet;
and the sending module is used for sending the encrypted data packet.
In one possible implementation manner of the first aspect, the acquisition module includes: the device comprises a voltage acquisition unit, a current acquisition unit, a temperature acquisition unit and a door magnetic state acquisition unit; the operating state data includes: operating voltage data, operating current data, operating temperature data, and gate magnetic state data.
In one possible implementation manner of the first aspect, the collecting end further includes an integrating module, where the integrating module is configured to integrate the working state data to obtain integrated data;
the encryption module is used for encrypting the integrated data to obtain an encrypted data packet.
In one possible implementation manner of the first aspect, the encryption module includes: the system comprises a first encryption unit and a second encryption unit, wherein the first encryption unit is used for asymmetrically encrypting working state data, and the second encryption unit is used for symmetrically encrypting the working state data.
In a second aspect, an embodiment of the present application provides a transformer state analysis end, including:
the receiving module is used for receiving the encrypted data packet;
the decryption module is used for decrypting the encrypted data packet to obtain decrypted data;
the analysis module is used for analyzing the decrypted data to obtain an analysis result;
and the judging module is used for judging the state of the transformer according to the analysis result.
In one possible implementation manner of the second aspect, the analysis module includes: the device comprises a drawing unit, a comparison unit and an analysis unit;
the drawing unit is used for drawing a curve according to the decrypted data to obtain an operation curve;
the comparison unit is used for comparing the normal curve with the running curve to obtain difference information;
the analysis unit is used for analyzing according to the difference information to obtain an analysis result.
In one possible implementation manner of the second aspect, the parsing end further includes a display module, where the display module is configured to display the decrypted data on the closed-loop PC end.
In a third aspect, an embodiment of the present application provides a method for monitoring a state of a transformer, where an acquisition module of the acquisition end is built in an inside of the transformer, and includes the following steps:
collecting working state data of a transformer;
encrypting the working state data to obtain an encrypted data packet;
and sending the encrypted data packet.
In a fourth aspect, an embodiment of the present application provides a method for monitoring a state of a transformer, which is used for a state analysis end of the transformer, including the following steps:
receiving an encrypted data packet;
decrypting the encrypted data packet to obtain decrypted data;
analyzing the decrypted data to obtain an analysis result;
and judging the state of the transformer according to the analysis result.
In a fifth aspect, an embodiment of the present application provides a transformer status monitoring system, including a transformer status collection end provided in any one of the first aspects and a transformer status analysis end provided in any one of the second aspects.
Compared with the prior art, the beneficial effects of this application are:
the embodiment of the application provides a mutual inductor state acquisition end, analysis end, mutual inductor state monitoring method and system, this acquisition end includes: the system comprises an acquisition module, an encryption module and a sending module, wherein the acquisition module is arranged in the transformer and is used for acquiring working state data of the transformer; the encryption module is used for encrypting the working state data to obtain an encrypted data packet; the sending module is used for sending the encrypted data packet. According to the method, the acquisition module is arranged in the transformer equipment, the real-time working state of the transformer can be reflected more truly by the data acquired by the inside of the transformer, the monitoring precision is improved, the acquired data are encrypted and sent at the acquisition end, the risks of data leakage and tampering are reduced, the safety of the data in the transmission process is guaranteed, the monitoring safety is enhanced, and the effect of monitoring the state of the transformer is effectively improved.
Drawings
Fig. 1 is a schematic block diagram of a transformer state acquisition end according to an embodiment of the present application;
fig. 2 is a schematic block diagram of a transformer state analysis end according to an embodiment of the present application;
fig. 3 is a schematic block diagram of an analysis module of a transformer state analysis end according to an embodiment of the present application;
fig. 4 is a schematic flow chart of a method for monitoring a state of a transformer according to an embodiment of the present application;
fig. 5 is a schematic flow chart of another embodiment of the method for monitoring the state of a transformer according to the embodiment of the present application;
fig. 6 is a schematic block diagram of a transformer status monitoring system according to an embodiment of the present disclosure;
fig. 7 is a schematic block diagram of a transformer status monitoring system according to an embodiment of the present application in an implementation manner.
Detailed Description
It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the present application.
The main solutions of the embodiments of the present application are: the utility model provides a mutual-inductor state acquisition end, analysis end, mutual-inductor state monitoring method and system, this acquisition end includes: the system comprises an acquisition module, an encryption module and a sending module, wherein the acquisition module is arranged in the transformer and is used for acquiring working state data of the transformer; the encryption module is used for encrypting the working state data to obtain an encrypted data packet; the sending module is used for sending the encrypted data packet.
The transformer is an instrument transformer device, and is mainly used for supplying power to metering equipment, and the running state of the instrument transformer device directly influences the metering accuracy, so that the monitoring of the running state of the instrument transformer device is very important; the intelligent management unit of the transformer realizes the functions of collecting and analyzing the current, voltage, temperature and other data of the transformer equipment, further realizing the on-line monitoring of the running state of the transformer equipment, abnormal early warning and the like.
The existing transformer management unit technology only monitors the temperature, the voltage and the current of transformer equipment in operation, the data acquisition sensor is installed on a secondary pile head of the transformer equipment, the installation is complex, the wiring is inconvenient, the operation data acquired by wiring of the secondary pile head can not completely and truly reflect the state of the transformer in operation, and the existing transformer management unit does not implement effective safety protection measures on the acquired power grid data, so that the risk of data transmission is large, and the monitoring effect is affected.
Therefore, the application provides a solution, through arranging collection module in mutual-inductor equipment, relevant collection equipment and wire all can be pre-buried in mutual-inductor equipment, and outside the lead wire to the mounted position, be favorable to the wiring planning, the complicacy of walking line and installation has been avoided, lead to producing the interference between each collection equipment, influence the monitoring effect, the real-time operating condition of mutual-inductor can be truly reflected to the data that gathers in the mutual-inductor, promote the precision of monitoring, and encrypt and send the data that will gather at the collection end, reduce the risk of data leakage, falsify, ensured the security of data in the transmission process, the security of monitoring has been strengthened, the effect to mutual-inductor state monitoring has effectively been promoted.
Referring to fig. 1, an embodiment of the present application provides a transformer state acquisition terminal, including:
the system comprises an acquisition module, an encryption module and a sending module, wherein the acquisition module is arranged in the transformer and is used for acquiring working state data of the transformer; the encryption module is used for encrypting the working state data to obtain an encrypted data packet; the sending module is used for sending the encrypted data packet.
In this embodiment, in order to realize unified control of each module, a controller may be configured to control interaction between the acquisition end and the analysis end, as shown in fig. 7, where the controller uses an STM32 control chip to perform operations such as processing, buffering, distributing or sending on data acquired by the acquisition end, and the acquisition module integrates multiple acquisition units, and different acquisition units respectively acquire different data so as to comprehensively reflect the working state of the transformer. The acquisition module comprises: the device comprises a voltage acquisition unit, a current acquisition unit, a temperature acquisition unit and a door magnetic state acquisition unit; the corresponding working state data comprises: operating voltage data, operating current data, operating temperature data, and gate magnetic state data.
In order to extract the effective value of the data and cache the data, an integration module is arranged for the acquisition end and used for integrating the data of the working state to obtain integrated data; and under the condition of integration, the encryption module is used for encrypting the integrated data to obtain an encrypted data packet.
The data integration is a data integration mode of collecting, sorting and cleaning data in different data sources, loading the data into a new data source after conversion and providing a unified data view for data consumers. In the embodiment of the application, after the voltage and current data acquired by the acquisition module are processed by the RN8302B three-phase electric energy metering chip, three-phase voltage and current effective values, active power effective values, voltage and current waveform data and equipment line harmonic data are integrated and extracted, the data are cached, the RN8302B three-phase electric energy metering chip also provides voltage phase sequence error detection, the RN8302B three-phase electric energy metering chip is connected with the main control chip, the main control chip is controlled by a corresponding program to read cache data in the RN8302B electric energy metering chip, and then all the data are stored in a corresponding memory.
Each acquisition unit of acquisition module, accessible wireless or wired mode is with data transmission feedback, adopts wired connection's mode in this application embodiment, and wired connection's mode is not influenced by wireless transmission signal intensity, can more stable realization real-time data interaction, promotes the effect of monitoring. Through the built-in collection equipment and pre-buried wire in advance to outside the mounted position, be favorable to the wiring planning, avoided walking the complicacy of line and installation, lead to producing the interference between each collection equipment, influence monitoring effect.
The voltage acquisition unit and the current acquisition unit can adopt the existing voltage and current acquisition module to synchronously acquire, and can also respectively adopt a voltage sensor and a current sensor to acquire and obtain working voltage data and working current data; the working voltage data are acquired by connecting a voltage line in parallel on a device voltage line, dividing the voltage by a resistor with 0.1% precision and then connecting the voltage to a voltage ADC acquisition channel pin of an electric energy metering chip; acquisition of working current data is achieved by passing the current line of the transformer device through a transformer ratio of 2000:1, the output end of the current sensor is connected to a current ADC acquisition channel of the electric energy metering chip.
The temperature acquisition unit adopts a temperature sensor, such as a high-precision digital temperature sensor, or a B3950 NTC temperature sensor to acquire the internal temperature of the transformer equipment, and the output end of the temperature sensor is connected with the main control chip to read the acquired temperature data. The door magnetic state acquisition unit is used for acquiring the opening and closing states of the junction box, monitoring whether the junction box of the transformer equipment is illegally opened or not is achieved, the acquisition of a position sensor, a touch sensor and the like can be utilized, the MC-18 normally open type door magnetic sensor can be adopted under the condition of door magnetic, the door magnetic sensor is arranged in the junction box of the transformer equipment, monitoring of the opening and closing states of the junction box of the transformer equipment is achieved, and the output end of the door magnetic sensor is connected with the main control chip STM32F103 to read door magnetic state data.
The encryption module is used for encrypting the data, and the original information data is changed by a special algorithm, so that even if an unauthorized user obtains the encrypted information, the unauthorized user still cannot know the content of the information because of not knowing the decryption method. An ESAM embedded safety control module is used, and the ESAM module adopts a national encryption algorithm, namely a commercial password, and is communicated with a master control chip STM32F103 in a connection way to encrypt all acquired data.
The encryption module may include a first encryption unit for asymmetrically encrypting the working state data and a second encryption unit for symmetrically encrypting the working state data. By arranging two encryption units to be matched, the encryption mode adopts a combination of a symmetric encryption algorithm and an asymmetric encryption algorithm, and the symmetric encryption algorithm uses the same secret key during encryption and decryption; the asymmetric encryption algorithm requires two keys, a public key and a private key, to encrypt and decrypt. The asymmetric encryption algorithm is characterized in that the algorithm strength is complex, the security depends on the algorithm and the secret key, and the encryption and decryption speed is far lower than that of the symmetric encryption algorithm due to the fact that the algorithm is complex, so that the asymmetric encryption algorithm is adopted to verify the identity, and the symmetric algorithm is used for encrypting a large amount of data, so that the data transmission speed is improved.
The sending module corresponds to the receiving module of the analysis end, realizes data transmission, and transmits the data from a data source to a data terminal through one or more data links according to a certain procedure, wherein the main function is to realize information transmission and exchange between points, and the basic transmission mode of data signals comprises: baseband transmission, band transmission, and digital data transmission. In the embodiment of the application, the 4G communication module A7689C based on the Internet of things technology is adopted, as shown in fig. 7, the module can support LTE-TDD and LTE-FDD, the module is connected with the main control chip to perform data interaction, and the encrypted data is transmitted to the rear end server through the 4G network to perform corresponding application processing after decryption.
In this embodiment, through arranging collection module in mutual-inductor equipment, relevant collection equipment and wire all can be pre-buried in mutual-inductor equipment, and adopt the material that the temperature resistance is greater than one hundred fifty degrees, the wire rod interface uses the aviation head to connect, outside the lead wire to the mounted position, be favorable to wiring planning, the complicacy of walking line and installation has been avoided, lead to producing the interference between each collection equipment, influence monitoring effect, the real-time operating condition of mutual-inductor can truly be reflected to the data that gathers in the mutual-inductor inside, promote the precision of monitoring, and encrypt and send the data that will gather at the collection end, reduce the risk of data leakage, falsify, the security of data in the transmission process has been ensured, the security of monitoring has been strengthened, the effect to mutual-inductor state monitoring has effectively been promoted.
Referring to fig. 2-3, an embodiment of the present application provides a transformer state analyzing terminal, including:
the system comprises a receiving module, a decryption module, an analysis module and a judgment module, wherein the receiving module is used for receiving an encrypted data packet; the decryption module is used for decrypting the encrypted data packet to obtain decrypted data; the analysis module is used for analyzing the decrypted data to obtain an analysis result; the judging module is used for judging the state of the transformer according to the analysis result.
In this embodiment, the receiving module corresponds to the sending module of the collecting end, and is configured to receive the data packet sent by the sending module, and the decrypting module corresponds to the encrypting module, that is, decrypts the received encrypted data. The analysis module performs specific data analysis on the decrypted data to compare the decrypted data with the data in the normal state, so as to obtain the state of the transformer, as shown in fig. 3, specifically: the analysis module comprises: the device comprises a drawing unit, a comparison unit and an analysis unit; the drawing unit is used for drawing a curve according to the decrypted data to obtain an operation curve; the comparison unit is used for comparing the normal curve with the running curve to obtain difference information; the analysis unit is used for analyzing according to the difference information to obtain an analysis result.
The drawing unit draws a curve according to the data, draws the voltage waveform, the current waveform, the harmonic wave and the like of the transformer in operation, visually reflects the parameter change condition, compares the parameter change condition with a normal curve to obtain the difference of the voltage waveform, the current waveform and the harmonic wave with the normal curve, analyzes according to the difference information, compares the current data with the rated value of the equipment, synthesizes the temperature, the voltage data and the waveform curve, and analyzes whether the state of the transformer in operation is normal or not. The normal curve can be determined by factory parameters of the transformer on one hand, and can be determined according to data detected under multiple normal use on the other hand.
The judging module is used for carrying out abnormality judgment, namely setting a threshold in advance, comparing the acquired real-time data with the threshold corresponding to each item of data, judging whether abnormality occurs or not, and comprehensively determining the setting of the threshold according to the factory requirements of the transformer and the inspection report. Under the condition of judging that the abnormality occurs, an alarm module is arranged to alarm the abnormal condition, for example: overcurrent, voltage loss, over-temperature, three-phase unbalance, wiring phase sequence error, equipment overload, door magnetic abnormality and the like. In order to reflect the alarm information in time, a display module is arranged at the analysis end and is used for displaying the decrypted data on the closed-loop PC end so as to provide the decrypted data for relevant management personnel to check. And a wireless module can be further arranged for sending related information to the mobile phone APP terminal in a wireless communication mode.
It should be understood by those skilled in the art that the division of each module in the embodiments is merely a division of a logic function, and may be fully or partially integrated into one or more actual carriers when actually applied, and the modules may be fully implemented in the form of software called by a processing unit, or fully implemented in the form of hardware, or implemented in the form of a combination of software and hardware.
Referring to fig. 4, based on the same inventive concept as in the foregoing embodiment, an embodiment of the present application further provides a method for monitoring a state of a transformer, where an acquisition module of the acquisition end is built in the transformer, and includes the following steps:
collecting working state data of a transformer;
encrypting the working state data to obtain an encrypted data packet;
and sending the encrypted data packet.
Referring to fig. 5, based on the same inventive concept as in the previous embodiment, an embodiment of the present application further provides a method for monitoring a state of a transformer, which is used for a state analysis end of the transformer, and includes the following steps:
receiving an encrypted data packet;
decrypting the encrypted data packet to obtain decrypted data;
analyzing the decrypted data to obtain an analysis result;
and judging the state of the transformer according to the analysis result.
It should be noted that, each step in the method for monitoring the state of the transformer in this embodiment corresponds to each module in the state acquisition end and the state analysis end of the transformer in the foregoing embodiment, so that a specific implementation of this embodiment may refer to an implementation of the state acquisition end and the state analysis end of the transformer, which are not described herein again.
Referring to fig. 6, based on the same inventive concept as that of the foregoing embodiment, an embodiment of the present application further provides a transformer status monitoring system, which includes a transformer status collection end provided in an embodiment of the present application and a transformer status analysis end provided in an embodiment of the present application.
The present application will be further described with reference to fig. 7, in its illustrated embodiment:
the data acquisition module is used for respectively acquiring voltage, current, temperature and gate magnetic state, wherein the STM32 control chip is used for directly reading data acquired by the temperature and the gate magnetic state, integrating the voltage and the current through the three-phase electric energy metering chip of the data processing module after acquiring the data, and extracting voltage data, current data, electric quantity data and waveform data from the voltage and the current data to the control chip;
the control chip can control the storage of data, the storage position is a storage module, the encryption module can be controlled to encrypt the data, the encrypted data is transmitted to the back-end server through the 4G module of the Internet of things, and the WiFi module is synchronously controlled to feed back to the APP end of the mobile phone. The data processing module is provided with a clock module and is responsible for clock adjustment and power supply management of all the modules, and working frequency adjustment and power supply switching management of all the hardware modules are processed.
And after receiving the encrypted data packet, performing post-processing application, namely displaying the data after decryption processing on a page of a closed-loop PC (personal computer) end, synchronously displaying alarm information of related conditions, and prompting on an i-state network mobile APP.
It should be noted that, in this document, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or system that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or system. Without further limitation, an element defined by the phrase "comprising one … …" does not exclude the presence of other like elements in a process, method, article, or system that comprises the element.
The foregoing embodiment numbers of the present application are merely for describing, and do not represent advantages or disadvantages of the embodiments.
To sum up, the present application provides a transformer state acquisition end, analysis end, transformer state monitoring method and system, this acquisition end includes: the system comprises an acquisition module, an encryption module and a sending module, wherein the acquisition module is arranged in the transformer and is used for acquiring working state data of the transformer; the encryption module is used for encrypting the working state data to obtain an encrypted data packet; the sending module is used for sending the encrypted data packet. According to the method, the acquisition module is arranged in the transformer equipment, the real-time working state of the transformer can be reflected more truly by the acquired data inside the transformer, the monitoring precision is improved, the acquired data are encrypted and sent at the acquisition end, the risks of data leakage and tampering are reduced, the safety of the data in the transmission process is guaranteed, the monitoring safety is enhanced, and the effect of monitoring the state of the transformer is effectively improved.
The foregoing description of the preferred embodiments of the present application is not intended to limit the invention to the particular embodiments of the present application, but to limit the scope of the invention to the particular embodiments of the present application.

Claims (10)

1. The utility model provides a mutual-inductor state collection end which characterized in that includes:
the acquisition module is arranged in the transformer and is used for acquiring working state data of the transformer;
the encryption module is used for encrypting the working state data to obtain an encrypted data packet;
and the sending module is used for sending the encrypted data packet.
2. The transformer state acquisition terminal of claim 1, wherein the acquisition module comprises: the device comprises a voltage acquisition unit, a current acquisition unit, a temperature acquisition unit and a door magnetic state acquisition unit; the working state data comprises: operating voltage data, operating current data, operating temperature data, and gate magnetic state data.
3. The transformer state acquisition end according to claim 1, wherein the acquisition end further comprises an integration module, and the integration module is configured to perform data integration on the working state data to obtain integrated data;
the encryption module is used for encrypting the integrated data to obtain the encrypted data packet.
4. The transformer state collection terminal of claim 1, wherein the encryption module comprises: the first encryption unit is used for asymmetrically encrypting the working state data, and the second encryption unit is used for symmetrically encrypting the working state data.
5. A transformer state parsing terminal, comprising:
the receiving module is used for receiving the encrypted data packet;
the decryption module is used for decrypting the encrypted data packet to obtain decrypted data;
the analysis module is used for analyzing the decrypted data to obtain an analysis result;
and the judging module is used for judging the state of the transformer according to the analysis result.
6. The transformer state analysis terminal of claim 5, wherein the analysis module comprises: the device comprises a drawing unit, a comparison unit and an analysis unit;
the drawing unit is used for drawing a curve according to the decrypted data to obtain an operation curve;
the comparison unit is used for comparing a normal curve with the running curve to obtain difference information;
the analysis unit is used for analyzing according to the difference information to obtain an analysis result.
7. The transformer state parsing terminal of claim 5, further comprising a display module for displaying the decrypted data on a closed-loop PC terminal.
8. The method for monitoring the state of the transformer is characterized by comprising the following steps that the acquisition module of the acquisition end is arranged in the transformer:
collecting working state data of the transformer;
encrypting the working state data to obtain an encrypted data packet;
and sending the encrypted data packet.
9. The method for monitoring the state of the transformer is characterized by being used for a state analysis end of the transformer and comprising the following steps of:
receiving an encrypted data packet;
decrypting the encrypted data packet to obtain decrypted data;
analyzing the decrypted data to obtain an analysis result;
and judging the state of the transformer according to the analysis result.
10. A transformer state monitoring system, comprising a transformer state acquisition end according to any one of claims 1-4 and a transformer state analysis end according to any one of claims 5-7.
CN202310109407.7A 2023-02-14 2023-02-14 Transformer state acquisition end, analysis end and transformer state monitoring method and system Pending CN116087865A (en)

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