LU506792B1 - Remote monitoring system for oil and gas in high-voltage bushing - Google Patents
Remote monitoring system for oil and gas in high-voltage bushing Download PDFInfo
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- LU506792B1 LU506792B1 LU506792A LU506792A LU506792B1 LU 506792 B1 LU506792 B1 LU 506792B1 LU 506792 A LU506792 A LU 506792A LU 506792 A LU506792 A LU 506792A LU 506792 B1 LU506792 B1 LU 506792B1
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- 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
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L67/00—Network arrangements or protocols for supporting network services or applications
- H04L67/01—Protocols
- H04L67/12—Protocols specially adapted for proprietary or special-purpose networking environments, e.g. medical networks, sensor networks, networks in vehicles or remote metering networks
- H04L67/125—Protocols specially adapted for proprietary or special-purpose networking environments, e.g. medical networks, sensor networks, networks in vehicles or remote metering networks involving control of end-device applications over a network
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04Q—SELECTING
- H04Q9/00—Arrangements in telecontrol or telemetry systems for selectively calling a substation from a main station, in which substation desired apparatus is selected for applying a control signal thereto or for obtaining measured values therefrom
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
- H04W4/30—Services specially adapted for particular environments, situations or purposes
- H04W4/38—Services specially adapted for particular environments, situations or purposes for collecting sensor information
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- H—ELECTRICITY
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- H04Q2209/00—Arrangements in telecontrol or telemetry systems
- H04Q2209/30—Arrangements in telecontrol or telemetry systems using a wired architecture
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
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- H04Q2209/00—Arrangements in telecontrol or telemetry systems
- H04Q2209/40—Arrangements in telecontrol or telemetry systems using a wireless architecture
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- H04—ELECTRIC COMMUNICATION TECHNIQUE
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- H04Q2209/00—Arrangements in telecontrol or telemetry systems
- H04Q2209/40—Arrangements in telecontrol or telemetry systems using a wireless architecture
- H04Q2209/43—Arrangements in telecontrol or telemetry systems using a wireless architecture using wireless personal area networks [WPAN], e.g. 802.15, 802.15.1, 802.15.4, Bluetooth® or Zigbee®
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
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- H04Q2209/00—Arrangements in telecontrol or telemetry systems
- H04Q2209/40—Arrangements in telecontrol or telemetry systems using a wireless architecture
- H04Q2209/47—Arrangements in telecontrol or telemetry systems using a wireless architecture using RFID associated with sensors
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
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- H04Q2209/00—Arrangements in telecontrol or telemetry systems
- H04Q2209/80—Arrangements in the sub-station, i.e. sensing device
- H04Q2209/82—Arrangements in the sub-station, i.e. sensing device where the sensing device takes the initiative of sending data
- H04Q2209/823—Arrangements in the sub-station, i.e. sensing device where the sensing device takes the initiative of sending data where the data is sent when the measured values exceed a threshold, e.g. sending an alarm
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Abstract
Remote Monitoring System For Oil And Gas In High-Voltage Bushing The present invention provides a remote monitoring system for oil and gas in a high-voltage bushing, comprising a hydrogen-temperature-pressure integrated sensor, a data access device, an intelligent remote transmission device, and a remote monitoring platform. The hydrogen-temperature-pressure integrated sensor is used for collecting monitoring data of dissolved hydrogen, temperature and pressure in the high-voltage bushing in real time and sending the monitoring data to the data access device; the data access device sends the received monitoring data to the intelligent remote transmission device; the intelligent remote transmission device sends the monitoring data to the remote monitoring platform; the remote monitoring platform identifies the state of the high-voltage bushing according to the monitoring data, generates a control instruction, and sends the control instruction to the intelligent remote transmission device; the intelligent remote transmission device sends the control instruction to the hydrogen-temperature-pressure integrated sensor; and the hydrogen-temperature-pressure integrated sensor performs an early-warning operation or an alarm operation according to the control instruction. The present invention implements an on-line monitoring of the multi-detection amount of oil and gas in the high-voltage bushing without power failure, improving the monitoring efficiency and convenience.
Description
REMOTE MONITORING SYSTEM FOR OIL AND GAS IN LU506792
HIGH-VOLTAGE BUSHING
The present invention belongs to the technical field of online monitoring of electric power, and particularly relates to a remote monitoring system for oil and gas in a high-voltage bushing.
The high-voltage bushings serve as the main insulation means outside the transformer tank, the insulation state of which is essential for safe operation of the transformer. With the increase of transformer voltage level, power accidents caused by bushing fault or damage frequently occur.
High voltage bus bars are applied at both ends of the bushing. Under the action of high voltage, because the insulation structure of the bushing, such as oil-paper insulation, is composed of highly polymerized hydrocarbons, and the carbon-hydrogen bond energy is low, hydrogen is generated first in the decomposition process. At the same time, the bushing is easily affected by the environment when exposed to the outside for a long time. When the moisture in the bushing leads to the increase of water content in the insulation medium, hydrogen will also be produced by electrolysis under the action of electric field, which is the main component of gas in the bushing oil.
When partial discharge, overheating, moisture and other faults occur in the bushing, the pressure and oil temperature in the bushing also change obviously with the increase of characteristic gas generated in the bushing. Therefore, through the comprehensive monitoring of the basic characteristics of oil and characteristic gas content, it can provide more comprehensive monitoring data for the fault diagnosis of oil-less equipment.
However, at present, oil chromatography is mostly used to detect the oil and gas state of high-voltage bushing, but this method has a long test period, a single detection amount and a small amount of oil inside the bushing. Due to the need for on-site oil extraction detection, which, 506792 leads to power failure during oil extraction, the effectiveness of live detection is poor and there is a lack of effective and reliable on-line monitoring means, a remote monitoring system for the oil and gas state in a high-voltage bushing is urgently needed.
The purpose of the present invention is to solve the above-mentioned shortcomings of the background art, and to provide a remote monitoring system for oil and gas in a high-voltage bushing, which remotely monitors the oil and gas state of the bushing in real time, and performs timely prediction of the state quantity, thereby achieving early-warning of the risk of equipment and rapid diagnosis of faults.
The technical solutions adopted by the present invention are: a remote monitoring system for oil and gas in a high-voltage bushing, including a hydrogen-temperature-pressure integrated sensor, a data access device, an intelligent remote transmission device and a remote monitoring platform; the hydrogen-temperature-pressure integrated sensor is used for collecting monitoring data of dissolved hydrogen, temperature, pressure in the high-voltage bushing in real time and sending the monitoring data to the data access device; the data access device is used for standardizing the received monitoring data and sending the standardized monitoring data to the intelligent remote transmission device; the intelligent remote transmission device is used for sending the received monitoring data to the remote monitoring platform; the remote monitoring platform is used for identifying the state of the high-voltage bushing according to the monitoring data, generating a control instruction according to an identification result, and sending the control instruction to the intelligent remote transmission device; the intelligent remote transmission device is used for sending the control instruction to the hydrogen-temperature-pressure integrated sensor through the data access device, and the hydrogen-temperature-pressure integrated sensor is used for performing an early-warning operation or an alarm operation according to the control instruction.
In the above technical solution, the data access device is electrically connected with a plurality of hydrogen-temperature-pressure integrated sensors; the remote monitoring platform communicates, 506792 with a plurality of intelligent remote transmission devices. According to the invention, data access devices and intelligent remote transmission devices are respectively arranged in a plurality of sites, and hydrogen-temperature-pressure integrated sensors are arranged on the three-way pipe branch pipes of each high-voltage bushing oil port in each site, so as to realize the monitoring of a large range of high-voltage bushing, and distinguish the specific position of the high-voltage bushing with a fault according to the address information of different hydrogen-temperature-pressure integrated sensors.
In the above technical solution, the system further includes a cloud data platform and an APP/Web client; the remote monitoring platform communicates with the APP/Web client through the cloud data platform, and a user accesses the data of the remote monitoring platform through the
APP/Web client. The user can remotely monitor the high-voltage bushing in the site through the
APP/Web client. The user generates fault maintenance opinions on the high-voltage bushing data observed by the client.
In the above technical solution, the hydrogen-temperature-pressure integrated sensor includes a sensor body, an A/D converter, a communication module, a sampling control module, an alarm control module and an alarm module; the sensor body includes a hydrogen sensor, a temperature sensor, and a pressure sensor; the sensor body is electrically connected with the A/D converter; the
A/D converter converts the monitoring data collected by the sensor body from an analog signal to a digital signal, and transmits the digital signal to the communication module; the communication module transmits the received monitoring data to the data access device; the communication module is further used for receiving the control instruction sent by the data access device, and sending the control instruction to the sampling control module and the alarm control module; the sampling control module drives the sensor body to adjust a sampling period of the sensor body according to the content of the control instruction; and the alarm control module drives the alarm module to start a corresponding working mode according to the content of the control instruction.
The hydrogen-temperature-pressure integrated sensor is installed on the three-way pipe branch pipe of the oil port of the bushing, ensuring the subsequent sampling function of the oil port. The present invention guarantees the effective transfer of information through the A/D converter and,506792 the communication module, and guarantees the effective execution of the control instruction through the connection of the sampling control module and the alarm control module with the communication module.
In the above technical solution, the intelligent remote transmission device includes an I1 protocol communication module, a data collection module, an information management module and an 12 protocol communication module; the Il protocol communication module is in communication connection with the data access device, and also in communication connection with the data collection module and the information management module; the I2 protocol communication module is in communication connection with the remote monitoring platform, and also in communication connection with the data collection module and the information management module; and the data collection module is used for receiving monitoring data sent by the data access device; the information management module is used for receiving the control instruction issued by the remote monitoring platform. The present invention guarantees efficient transfer of information, and bi-directional communication of the sensor with the remote monitoring platform through connection of the protocol communication module and the data collection module with the information management module.
In the above technical solution, the remote monitoring platform includes a data processing module, a threshold setting module, a threshold comparison module, a state monitoring module, a monitoring early-warning module and a fault alarm module; the data processing module is used for filtering, converting and combining the real-time received monitoring data to form a real-time running state quantity of the high-voltage bushing; the threshold setting module is used for setting thresholds for judging that the high-voltage bushing is in different states; the threshold comparison module is used for correspondingly starting the state monitoring module,
the monitoring early-warning module or the fault alarm module according to a comparison result, 506792 between the real-time running state quantity of the high-voltage bushing and a set threshold; the state monitoring module is used for displaying the real-time running state quantity of the 5 high-voltage bushing; the monitoring early-warning module is used for predicting a future running state quantity of the high-voltage bushing, and comparing with a set early-warning value; generating a control instruction for an early-warning operation for a future running state quantity indicator exceeding an early-warning value; and the fault alarm module is used for determining a fault type of the high-voltage bushing, and generating corresponding control instructions for an alarm operation for different fault types.
While the remote monitoring platform of the present invention effectively identifies the running state of the high-voltage bushing, predicts and alarms the high-voltage bushing state based on real-time detection data, and resolves and diagnoses the fault state, and generates corresponding prompt information, which is convenient for operators to deal with the fault of the high-voltage bushing in time.
In the above technical solution, the remote monitoring platform further comprises a fault maintenance module; the fault maintenance module generates a corresponding fault maintenance recommendation according to the fault type determined by the fault alarm module to assist on-site personnel to perform fault maintenance on the equipment.
In the above technical solution, the threshold setting module 1s used for setting a first threshold, a second threshold, and a third threshold which are increased in turn from small to large; if the threshold comparison module determines that the real-time running state quantity of the high-voltage bushing is below the first threshold, it is determined that the high-voltage bushing is not running, LU506792 if the threshold comparison module determines that the real-time running state quantity of the high-voltage bushing is higher than a first threshold and lower than a second threshold, the state monitoring module is started; if the threshold comparison module determines that the real-time running state quantity of the high-voltage bushing is higher than a second threshold and lower than a third threshold, the monitoring early-warning module is started; and if the threshold comparison module determines that the real-time running state quantity of the high-voltage bushing is higher than the third threshold, the fault alarm module and the fault maintenance module are started.
The invention effectively distinguishes the running state of the high-voltage bushing through threshold division, and starts a corresponding model based on the running state of the high-voltage bushing, the operator is prompted for the state of the high-voltage bushing, which is convenient for the operator to intuitively understand the state of the high-voltage bushing.
In the above technical solution, the early-warning operation comprises driving the sampling control module to shorten the sampling period of the body sensor and driving the alarm control module to control the alarm module to start the early-warning working mode. The present invention further accurately predicts state changes by increasing the frequency at which the sensor samples data.
In the above technical solution, the alarm operation comprises driving the alarm control module to control the alarm module to start a corresponding alarm working mode based on the determined fault type, thus facilitating the operator to intuitively understand the state of the high-voltage bushing.
Beneficial effects of the present invention are:
(1) A complete remote monitoring system is provided, which has the functions of intelligent monitoring, data storage, state pre-judgment, early-warning and fault alarming and maintenance for high-voltage bushing state quantities, and can realize online monitoring of multi-detection quantities for oil and gas in the high-voltage bushing without power failure. (2) The hydrogen-temperature-pressure integrated sensor can accurately sense the running state of the high-voltage bushing according to the changes of multiple state quantities, and timely warn and alarm. The remote monitoring platform of the invention can synchronously monitor a plurality of different high-voltage bushings in different sites, thereby helping on-site personnel to quickly and conveniently locate fault equipment and carry out maintenance. (3) The remote monitoring platform can set the corresponding threshold according to the different states of different types of high-voltage bushings, realize the judgment of the running state of the high-voltage bushing, and output the control instruction to the corresponding high-voltage bushing, so as to realize the local early-warning of the high-voltage bushing.
FIG. 1 is a frame diagram of a remote monitoring system for oil and gas in a high-voltage bushing according to an embodiment of the present invention;
FIG. 2 is a module schematic diagram of a hydrogen-temperature-pressure integrated sensor according to an embodiment of the present invention;
FIG. 3 is a module schematic diagram of an intelligent remote transmission device according to an embodiment of the present invention;
FIG. 4 is a module schematic diagram of a remote monitoring platform according to an embodiment of the present invention; and
FIG. 5 is a monitoring flow diagram of a remote monitoring platform according to an embodiment of the present invention.
Wherein, 1-hydrogen-temperature-pressure integrated sensor, 2-data access device, 3-intelligent remote transmission device, 4-remote monitoring platform, 5-cloud data platform, 6-APP/Web client; 11-sensor body, 111-hydrogen sensor, 112-temperature sensor, 113-pressure sensor, 12-A/D converter, 13-communication module, 14-sampling control module, 15-alarm control module, 16-alarm module, 17-power module; 31-I1 protocol communication module, 32-data collection module, 33-information management module, 34-I2 protocol communication module, 35-power module; 41-data processing module, 42-threshold setting module, 43-threshold comparison module, 44-state monitoring module, 45-monitoring early-warning module, 46-fault alarm module, 47-fault maintenance module.
A further detailed description of the invention is given below in conjunction with the accompanying drawings and specific embodiments to facilitate a clear understanding of the invention but they are not limiting to the invention.
As shown in FIG. 1, the present invention provides a remote monitoring system for oil and gas in a high-voltage bushing, including: a hydrogen-temperature-pressure integrated sensor 1, a data access device 2, an intelligent remote transmission device 3, a remote monitoring platform 4, a cloud data platform 5, an APP/Web client 6.
The hydrogen-temperature-pressure integrated sensor 1 is in communication connection with the data access device 2, and wired data communication and wireless data communication can be used.
The wired data communication may adopt optical fiber communication, RS485, etc., and the wireless data communication may adopt radio frequency, ZigBee, WiFi, Bluetooth, etc., enabling communication diversification.
The data access device 2 can convert monitoring data not satisfying the IEC61850 communication, 506792 protocol into monitoring data satisfying the IEC61850 communication protocol, thereby ensuring the standardized access of monitoring data of different interfaces and the access of sensor monitoring information compatible with different communication modes.
The data access device 2 is in communication connection with the intelligent remote transmission device 3. The communication protocol employs the I1 protocol. The communication mode may be
WiFi, ZigBee, RFID radio frequency or the like.
The intelligent remote transmission device 3 is in communication connection with the remote monitoring platform 4, and the communication protocol adopts I2 protocol, and the communication mode can adopt 5G, GPRS or CDMA. The intelligent remote transmission device 3 performs bidirectional communication with the remote monitoring platform. On the one hand, the monitoring data is uploaded to the remote monitoring platform, and on the other hand, the control instructions from the remote monitoring platform are received and sent to the hydrogen-temperature-pressure integrated sensor.
The data access device 2 can be connected with a plurality of hydrogen-temperature-pressure integrated sensors 1. The remote monitoring platform 4 can be connected with a plurality of intelligent remote transmission devices 3. Each site to be monitored may have more than one data access device 2 and more than one intelligent remote transmission device 3. The hydrogen-temperature-pressure integrated sensors 1 can be installed on multiple high-voltage bushings in a single site. The remote monitoring platform 4 is used for collecting the collected information from each hydrogen-temperature-pressure integrated sensor 1, thereby judging the state of each high-voltage bushing, generating a corresponding control instruction and sending the instruction to the corresponding high-voltage bushing, further starting the alarm module corresponding to the high-voltage bushing and realizing the local alarm early-warning prompt of the high-voltage bushing.
The remote monitoring platform 4 is connected with the APP/Web client 6 through the cloud data platform 5, and users can directly access the data of each functional module of the remote monitoring platform 4 through the APP/Web client 6, and carry out remote monitoring and remofe,506792 guidance on site equipment.
As shown in FIG. 2, the hydrogen-temperature-pressure integrated sensor 1 is composed of a sensor body 11, an A/D converter 12, a communication module 13, a sampling control module 14, an alarm control module 15, an alarm module 16, and a power supply module 17.
Wherein, the sensor body 11 is formed by packaging hydrogen, temperature and pressure sensors.
The hydrogen sensor 111 uses a palladium alloy nano-film hydrogen sensor to convert the hydrogen concentration into a metal resistance value, the temperature sensor 112 uses a semiconductor sensor to change the semiconductor resistance value by temperature, and the pressure sensor 113 uses a varistor sensor to convert a pressure signal into an electrical signal for output through a piezoresistive effect.
Wherein, the hydrogen sensor 111 is integrated with a temperature compensation chip for improving the sensitivity of the hydrogen sensor.
The sensor body 11 is in communication connection with the A/D converter 12. The A/D converter 12 converts the monitoring data sensed by the sensor body 11 from an analog signal to a digital signal and transmits it to a communication module 13, which communicates with and transmits the monitoring data to the data access device 2.
The communication module 13 is also connected with a sampling control module 14 and an alarm control module 15 to send a control instruction received from the data access device 2 to the sampling control module 14 and the alarm control module 15.
The sampling control module 14 is in communication connection with the sensor body 11 and controls the sampling period of the sensor body 11 based on the received control instruction.
The alarm control module 15 is in communication connection with the alarm module 16, and controls the starting mode of the alarm module 16 based on the received control instruction.
The alarm module 16 adopts an acousto-optic alarm, and when the high-voltage bushing and the 506792 sensor body fail, according to different faults, alarming is performed by driving the LED lamp and the buzzer in different combination manners, thus reminding the personnel on site to locate and perform maintenance in time.
The power supply module 17 is used for supplying power to the sensor body 11, the A/D converter 12, the communication module 13, the sampling control module 14, the alarm control module 15 and the alarm module 16.
The hydrogen-temperature-pressure integrated sensor 1 is installed on the three-way pipe branch pipe of the oil port of the high-voltage bushing, ensuring the subsequent sampling function of the oil port.
By deploying the data access devices 2 and the intelligent remote transmission devices 3 in a plurality of sites, respectively, and by arranging the hydrogen-temperature-pressure integrated sensor 1 on the three-way pipe branch pipe of the oil port of each high-voltage bushing on each site, it is possible to monitor a wide range of high-voltage bushings, and to resolve the specific location of the high-voltage bushing where the fault occurs according to the address information of different hydrogen-temperature-pressure integrated sensors 1. The hydrogen-temperature-pressure integrated sensor 1 transmits the type information, the address information and the real-time state quantity of the corresponding high-voltage bushing to the remote monitoring platform 4 via the data access device 2 and the intelligent remote transmission device 3.
As shown in FIG. 3, the intelligent remote transmission device 3 includes an I1 protocol communication module 31, a data collection module 32, an information management module 33, an I2 protocol communication module 34, and a power supply module 35.
The I1 protocol communication module 31 is in communication connection with the data access device 2, and is in communication connection with the data collection module 32 and the information management module 33.
The 12 protocol communication module 34 is in communication with the remote monitoring, 506792 platform 4 and in communication with the data collection module 32 and the information management module 33.
The data collection module 32 is used for receiving the monitoring data collected by the sensor body.
The information management module 33 is used for receiving a control instruction issued by the remote monitoring platform 4.
The intelligent remote transmission device 3 is in two-way communication with the remote monitoring platform 4. On the one hand, the monitoring data is uploaded to the remote monitoring platform, on the other hand, the control instruction of the remote monitoring platform is received and the address information in the control instruction is analyzed, and the control instruction is sent to the designated hydrogen-temperature-pressure integrated sensor 1.
As shown in FIG. 4, the remote monitoring platform 4 includes a data processing module 41, a threshold setting module 42, a threshold comparison module 43, a state monitoring module 44, a monitoring early-warning module 45, a fault alarm module 46, and a fault maintenance module 47.
The data processing module 41 is used for filtering, converting and combining the received original monitoring data of each high-voltage bushing, removing bad data and interfering signals, building a database, and forming a real-time running state quantity of each high-voltage bushing.
The real-time running state quantity of each high-voltage bushing is classified according to the type of the high-voltage bushing, and the historical data of the real-time running state quantity of each high-voltage bushing is taken as the historical state indicator data.
The threshold setting module 42 is used for setting the thresholds for different running states of each type of high-voltage bushings.
Specifically, the threshold setting module 42 compares the historical state indicator data with the empirical data of the same high-voltage bushings based on the high-voltage bushing type, and sets 506792 a first threshold, a second threshold and a third threshold sequentially increasing from small to large for each indicator of the state quantity of each type of high-voltage bushing, respectively. The state quantity indicator includes a temperature indicator, a pressure indicator, and a hydrogen concentration indicator.
The threshold setting method of the threshold setting module 42 includes the following steps: according to different manufacturers, models and working conditions, high-voltage bushings are classified. According to the same kind of high-voltage bushings, the historical state indicator data and the empirical data of the same kind of high-voltage bushings are statistically analyzed, and then the historical data distribution model of each state quantity indicator of each kind of high-voltage bushings under different running states is obtained, such as a Weibull distribution model, an AR distribution model, etc. The historical state indicator data and the empirical data of the same kind of high-voltage bushings can be manually derived or automatically collected by the system. The threshold setting module 42 calculates the thresholds of each state quantity indicator of various types of high-voltage bushings under different running states based on the statistical distribution model of historical data, and sets a first threshold, a second threshold and a third threshold based on the calculated thresholds. The first threshold is used to characterize a critical value at which the high-voltage bushing is not running or data has not been collected by the remote monitoring system. The second threshold is used to characterize the critical value of the fault trend of the high-voltage bushing. The third threshold is used to characterize the critical value of the fault of the high-voltage bushing.
The threshold comparison module 43 queries the corresponding first threshold, second threshold, and third threshold for each state quantity indicator based on the type of each high-voltage bushing.
The state monitoring module 44, the monitoring early-warning module 45, the fault alarm module 46 and the fault diagnosis module 47 are started for the high-voltage bushing according to the threshold interval in which each state quantity indicator lies in the real-time running state quantity of the high-voltage bushing, respectively, and the corresponding functions of the started modules are performed for the high-voltage bushing.
If the threshold comparison module 43 determines that all three indicators in the real-time running, 506792 state quantity of a certain high-voltage bushing are lower than the corresponding first threshold, it determines that the high-voltage bushing is not running; if the threshold comparison module 43 determines that any one of the indicators in the real-time running state quantity of a certain high-voltage bushing is higher than a first threshold and lower than a second threshold, the state monitoring module is started for the certain high-voltage bushing; if the threshold comparison module 43 determines that any one of the indicators in real-time running state quantity of a certain high-voltage bushing is higher than the corresponding second threshold and lower than the third threshold, the monitoring early-warning module is started for the high-voltage bushing; and if the threshold comparison module 43 determines that any one of the indicators of the real-time running state quantity of the high-voltage bushing is higher than the corresponding third threshold, the fault alarm module and the fault maintenance module are started for the high-voltage bushing.
The state monitoring module 44 visually displays the real-time running states of all high-voltage bushings in a variety of ways, such as curves, graphs, tables, and the like.
The monitoring early-warning module 45 uses an appropriate prediction algorithm to evaluate the development trend of the future health state of the high-voltage bushing, and sets the early-warning value of the corresponding high-voltage bushing state monitoring quantity according to the evaluation result, and sends out early-warning information to a certain indicator of the real-time running state quantity exceeding the early-warning value. The monitoring early-warning module sends the early-warning information to the corresponding high-voltage bushing based on the address information. The alarm control module of the high-voltage bushing starts the alarm module based on the early-warning information.
To evaluate the development trend of future health state, the state reasoning of the high-voltage bushing is carried out according to the real-time running state quantity and historical data of the high-voltage bushing. The prediction methods include a curve fitting method, a short-term time 506792 series (ARIMA) method, a neural network method and so on. According to the state prediction result of a certain high-voltage bushing, the future deterioration state of the high-voltage bushing is predicted in advance.
The fault alarm module 46 identifies the abnormal real-time running state quantity of a certain high-voltage bushing, judges the fault type, and sends different alarm information according to different fault types. The fault alarm module 46 transmits alarm information to the corresponding high-voltage bushing based on the address information. The alarm control module of the high-voltage bushing starts the alarm module based on the alarm information.
The fault maintenance module 47 puts forward corresponding maintenance recommendations according to different fault types and possible fault reasons, and helps on-site personnel to maintain and repair equipment.
According to the abnormal real-time running state quantity of a certain high-voltage bushing obtained, the fault alarm module 46 can use a fault tree method, a neural network method and other fault identification methods to analyze the fault reasons and give fault treatment recommendations.
Wherein, the fault types of the high-voltage bushing mainly include oil leakage, flashover of porcelain sleeve, damp insulation, bushing heating and so on.
The fault alarm module 46 judges the corresponding fault problem according to the abnormal indicator in the real-time running state quantity of the high-voltage bushing, for example, if the hydrogen concentration exceeds the standard, it can be judged that the internal insulation of the bushing is damp; if the pressure exceeds the standard, it can be judged that an internal insulation fault occurs; if the temperature exceeds the standard, it can be judged that an overheating insulation defect occurs; if the hydrogen and pressure simultaneous increase, it can be judged that a sudden insulation fault occurs due to damp inside; if the hydrogen and temperature increase at the same time, it can be judged that an insulation fault such as partial discharge occurs; if the temperature increases and the pressure decreases, it can be judged that a fault such as oil leakage, 506792 occurs.
The fault maintenance module 47 obtains a corresponding possible fault reason based on the fault type output by the fault alarm module 4. If damp insulation occurs, it may be caused by insufficient drying or aging of bushing insulation paper, and the corresponding drying treatment or replacement can be taken to eradicate the service life of the bushing, that is, the corresponding maintenance recommendation. There is a one-to-one correspondence between fault types and fault reasons and maintenance recommendation. The fault maintenance module 47 can output a corresponding fault reason and a maintenance recommendation according to the fault type.
In FIG. 5, the remote monitoring system for oil and gas in a high-voltage bushing according to the present invention provides a monitoring process for a certain high-voltage bushing as follows: (1) The normal start-up of each device of the remote monitoring system for oil and gas in a high-voltage bushing is completed. (2) The hydrogen-temperature-pressure integrated sensor senses the real-time monitoring data of dissolved hydrogen, temperature, and pressure in the high-voltage bushing, and the data access device transmits the monitoring data to the intelligent remote transmission device. (3) The intelligent remote transmission device uploads monitoring data to the remote monitoring platform. (4) The remote monitoring platform analyzes the received monitoring data after data processing and then judges: if the dissolved hydrogen, temperature, and pressure in the real-time monitoring data are all lower than a first threshold, then it is determined that the high-voltage bushing equipment is not running; if any data indicator of the dissolved hydrogen, temperature, and pressure in the real-time monitoring data is higher than a first threshold and lower than a second threshold, the state monitoring module is started; LU506792 if any data indicator of the dissolved hydrogen, temperature, and pressure in the real-time monitoring data is higher than a second threshold and lower than a third threshold, the monitoring early-warning module is started, a control instruction to shorten a sensor sampling period is issued, the control instruction is issued through the intelligent remote transmission device to the hydrogen-temperature-pressure integrated sensor, thus increasing the frequency of sampling data by the sensor, and further accurately predicting the state change. Early-warning information is sent out to the monitoring data indicator exceeding the early-warning value and then is issued to the intelligent remote transmission device, and the intelligent remote transmission device sends out the early-warning information to the hydrogen-temperature-pressure integrated sensor, and controls the alarm module to send out corresponding early-warning information; if any data indicator of the dissolved hydrogen, temperature and pressure in the real-time monitoring data is higher than a third threshold, then, the fault alarm module and the fault maintenance module are started, different control instructions are issued according to different fault types detected based on the real-time detection data, and different control instructions are sent to the hydrogen-temperature-pressure integrated sensor through the intelligent remote transmission module and the data access device to control the alarm module to issue alarms in different forms. At the same time, the fault maintenance module makes a corresponding fault maintenance recommendation for the diagnosed fault type, and the user can review the fault maintenance recommendation through the APP/Web client to assist in the field fault maintenance process.
The present invention is equally applicable to on-line monitoring quantities of oil chromatogram, partial discharge, vibration, etc. of high-voltage bushings, and by setting different integrated sensors and adjusting corresponding prediction programs and fault maintenance programs in each module, corresponding functions can be realized.
What is not described in detail in this specification belongs to the prior art well known to those skilled in the art.
Claims (10)
1. A remote monitoring system for oil and gas in a high-voltage bushing, characterized by comprising a hydrogen-temperature-pressure integrated sensor, a data access device, an intelligent remote transmission device and a remote monitoring platform, wherein the hydrogen-temperature-pressure integrated sensor is used for collecting monitoring data of dissolved hydrogen, temperature, pressure in the high-voltage bushing in real time and sending the monitoring data to the data access device; the data access device is used for standardizing the received monitoring data and sending the standardized monitoring data to the intelligent remote transmission device; the intelligent remote transmission device is used for sending the received monitoring data to the remote monitoring platform; the remote monitoring platform is used for identifying the state of the high-voltage bushing according to the monitoring data, generating a control instruction according to an identification result, and sending the control instruction to the intelligent remote transmission device; the intelligent remote transmission device is used for sending the control instruction to the hydrogen-temperature-pressure integrated sensor through the data access device; and the hydrogen-temperature-pressure integrated sensor is used for performing an early-warning operation or an alarm operation according to the control instruction.
2. The remote monitoring system for oil and gas in a high-voltage bushing according to claim 1, characterized in that the data access device is electrically connected with a plurality of hydrogen-temperature-pressure integrated sensors, the remote monitoring platform communicates with a plurality of intelligent remote transmission devices.
3. The remote monitoring system for oil and gas in a high-voltage bushing according to claim 1, characterized by further comprising a cloud data platform and an APP/Web client, wherein the remote monitoring platform communicates with the APP/Web client through the cloud data platform, and a user accesses the data of the remote monitoring platform through the APP/Web client.
4. The remote monitoring system for oil and gas in a high-voltage bushing according to claim 1, characterized in that the hydrogen-temperature-pressure integrated sensor comprises a sensor body, an A/D converter, a communication module, a sampling control module, an alarm control module and an alarm module; the sensor body comprises a hydrogen sensor, a temperature sensor, and a pressure sensor; the sensor body is electrically connected with the A/D converter; the A/D converter converts the monitoring data collected by the sensor body from an analog signal to a digital signal, and transmits the digital signal to the communication module; the communication module transmits the received monitoring data to the data access device; the communication module is further used for receiving the control instruction sent by the data access device, and sending the control instruction to the sampling control module and the alarm control module; the sampling control module drives the sensor body to adjust a sampling period of the sensor body according to the content of the control instruction; and the alarm control module drives the alarm module to start a corresponding working mode according to the content of the control instruction.
5. The remote monitoring system for oil and gas in a high-voltage bushing according to claim 1,
characterized in that the intelligent remote transmission device comprises an Il protocpl 506792 communication module, a data collection module, an information management module and an 12 protocol communication module; the Il protocol communication module is in communication connection with the data access device, and also in communication connection with the data collection module and the information management module; the 12 protocol communication module is in communication connection with the remote monitoring platform, and also in communication connection with the data collection module and the information management module; and the data collection module is used for receiving monitoring data sent by the data access device; the information management module is used for receiving the control instruction issued by the remote monitoring platform.
6. The remote monitoring system for oil and gas in a high-voltage bushing according to claim 4, characterized in that the remote monitoring platform comprises a data processing module, a threshold setting module, a threshold comparison module, a state monitoring module, a monitoring early-warning module and a fault alarm module; the data processing module is used for filtering, converting and combining the real-time received monitoring data to form a real-time running state quantity of the high-voltage bushing; the threshold setting module is used for setting thresholds for judging that the high-voltage bushing is in different states; the threshold comparison module is used for correspondingly starting the state monitoring module, the monitoring early-warning module or the fault alarm module according to a comparison result between the real-time running state quantity of the high-voltage bushing and a set threshold; LU506792 the state monitoring module is used for displaying the real-time running state quantity of the high-voltage bushing; the monitoring early-warning module 1s used for predicting a future running state quantity of the high-voltage bushing, and comparing with a set early-warning value; generating a control instruction for an early-warning operation for a future running state quantity indicator exceeding an early-warning value; and the fault alarm module is used for determining a fault type of the high-voltage bushing, and generating corresponding control instructions for an alarm operation for different fault types.
7. The remote monitoring system for oil and gas in a high-voltage bushing according to claim 6, characterized in that the remote monitoring platform further comprises a fault maintenance module; the fault maintenance module generates a corresponding fault maintenance recommendation according to the fault type determined by the fault alarm module.
8. The remote monitoring system for oil and gas in a high-voltage bushing according to claim 7, characterized in that the threshold setting module is used for setting a first threshold, a second threshold, and a third threshold which are increased in turn from small to large; if the threshold comparison module determines that the real-time running state quantity of the high-voltage bushing is below the first threshold, it is determined that the high-voltage bushing is not running or the remote monitoring system has not collected data; if the threshold comparison module determines that the real-time running state quantity of the high-voltage bushing is higher than a first threshold and lower than a second threshold, the state monitoring module is started;
if the threshold comparison module determines that the real-time running state quantity of the 506792 high-voltage bushing is higher than a second threshold and lower than a third threshold, the monitoring early-warning module is started; and if the threshold comparison module determines that the real-time running state quantity of the high-voltage bushing is higher than the third threshold, the fault alarm module and the fault maintenance module are started.
9. The remote monitoring system for oil and gas in a high-voltage bushing according to claim 8, characterized in that the early-warning operation comprises driving the sampling control module to shorten the sampling period of the body sensor and driving the alarm control module to control the alarm module to start the early-warning working mode.
10. The remote monitoring system for oil and gas in a high-voltage bushing according to claim 8, characterized in that the alarm operation comprises driving the alarm control module to control the alarm module to start a corresponding alarm working mode based on the determined fault type.
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| CN202210966716.1A CN115412583A (en) | 2022-08-12 | 2022-08-12 | High-voltage bushing oil gas remote monitoring system |
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| LU506792A1 LU506792A1 (en) | 2024-04-08 |
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| CN (1) | CN115412583A (en) |
| LU (1) | LU506792B1 (en) |
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| CN117405284B (en) * | 2023-12-15 | 2024-03-01 | 南京中鑫智电科技有限公司 | Pressure early warning method and system for sleeve oil hole plug assembly |
| CN118152866B (en) * | 2024-05-13 | 2024-07-23 | 国网江西省电力有限公司超高压分公司 | Transformer fault diagnosis method and system based on multi-source data fusion |
| CN118533310A (en) * | 2024-05-13 | 2024-08-23 | 国网安徽省电力有限公司经济技术研究院 | Temperature early warning method and device for equipment in power distribution station of distributed intelligent power distribution system |
| CN118604528B (en) * | 2024-08-06 | 2024-10-22 | 中宝电气有限公司 | Fault detection system based on primary and secondary fusion intelligent switch |
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| CN119043467A (en) * | 2024-11-01 | 2024-11-29 | 河北丰源智控科技股份有限公司 | Fault detection water meter with NFC function |
| CN119222169B (en) * | 2024-12-03 | 2025-06-13 | 南京真空泵厂有限公司 | Intelligent control system and method for liquid ring vacuum pump |
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| CN119916867A (en) * | 2025-04-01 | 2025-05-02 | 北京贝威通能源科技集团有限公司 | A remote control system for a CVA oil-filling platform |
| CN120232174B (en) * | 2025-05-06 | 2025-12-02 | 巴斯夫一体化基地(广东)有限公司 | Intelligent control system for monitoring and controlling industrial refrigeration systems |
| CN120742833B (en) * | 2025-09-04 | 2025-10-31 | 浙江麦法隆电力技术有限公司 | Quality monitoring system and method for production of insulating side-expanded casing |
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| CN104035756B (en) * | 2013-03-06 | 2017-05-24 | 中农先飞（北京）农业工程技术有限公司 | Irrigation remote intelligent control system common development platform and development method |
| CN104574832A (en) * | 2014-12-30 | 2015-04-29 | 杭州鲁尔物联科技有限公司 | Geological disaster monitoring and early warning system and method using wireless sensor network |
| CN105850328A (en) * | 2015-01-22 | 2016-08-17 | 中国农业机械化科学研究院 | Method and system for remote accurate administration of integrated water and fertilizer |
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