CN115951271A - Distribution transformer state monitoring data acquisition processing method and system - Google Patents
Distribution transformer state monitoring data acquisition processing method and system Download PDFInfo
- Publication number
- CN115951271A CN115951271A CN202310067587.7A CN202310067587A CN115951271A CN 115951271 A CN115951271 A CN 115951271A CN 202310067587 A CN202310067587 A CN 202310067587A CN 115951271 A CN115951271 A CN 115951271A
- Authority
- CN
- China
- Prior art keywords
- distribution transformer
- data
- terminal
- data acquisition
- state
- 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
- 238000009826 distribution Methods 0.000 title claims abstract description 85
- 238000012544 monitoring process Methods 0.000 title claims abstract description 55
- 238000003672 processing method Methods 0.000 title claims abstract description 10
- 238000012545 processing Methods 0.000 claims abstract description 39
- 238000000034 method Methods 0.000 claims abstract description 11
- 238000004891 communication Methods 0.000 claims description 50
- 238000004364 calculation method Methods 0.000 claims description 7
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 6
- 230000008447 perception Effects 0.000 claims description 6
- 238000005516 engineering process Methods 0.000 claims description 5
- 230000001133 acceleration Effects 0.000 claims description 4
- 230000004927 fusion Effects 0.000 claims description 4
- 238000004458 analytical method Methods 0.000 claims description 3
- 238000009529 body temperature measurement Methods 0.000 claims description 3
- 238000012423 maintenance Methods 0.000 abstract description 7
- 238000005070 sampling Methods 0.000 description 6
- 238000010586 diagram Methods 0.000 description 5
- 230000008569 process Effects 0.000 description 5
- 230000005540 biological transmission Effects 0.000 description 4
- 230000006870 function Effects 0.000 description 4
- 230000003993 interaction Effects 0.000 description 4
- 238000003860 storage Methods 0.000 description 4
- 239000003990 capacitor Substances 0.000 description 3
- 238000013461 design Methods 0.000 description 3
- 230000007246 mechanism Effects 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 238000011161 development Methods 0.000 description 2
- DMBHHRLKUKUOEG-UHFFFAOYSA-N diphenylamine Chemical group C=1C=CC=CC=1NC1=CC=CC=C1 DMBHHRLKUKUOEG-UHFFFAOYSA-N 0.000 description 2
- 230000036541 health Effects 0.000 description 2
- 238000007689 inspection Methods 0.000 description 2
- 238000007726 management method Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000005259 measurement Methods 0.000 description 2
- 230000015654 memory Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000011664 signaling Effects 0.000 description 2
- 230000002159 abnormal effect Effects 0.000 description 1
- 229910002056 binary alloy Inorganic materials 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 230000007935 neutral effect Effects 0.000 description 1
- 239000000725 suspension Substances 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- 238000004148 unit process Methods 0.000 description 1
Images
Landscapes
- Arrangements For Transmission Of Measured Signals (AREA)
Abstract
The invention discloses a method and a system for acquiring and processing state monitoring data of a distribution transformer, wherein the processing method comprises the following steps: collecting the running state data of the distribution transformer and transmitting the running state data to a terminal through a network; receiving operation state data of a distribution transformer by using a terminal and setting a threshold value; comparing the running state data with a threshold value; based on the comparison result, the alarm is controlled by the terminal network to alarm; when the real-time monitoring operation state quantity data on the distribution transformer is transmitted to the terminal through the network through the sensor, the terminal can input the threshold value of each operation state quantity in advance, after the terminal receives the state quantity data, the received data are compared with the corresponding threshold values, if the received state quantity data are larger than or equal to the threshold values, the corresponding alarm device is controlled to alarm through the network, the received operation state quantity data and alarm information of the distribution transformer are recorded, and operation and maintenance personnel can find potential safety hazards in operation of the distribution transformer in time.
Description
Technical Field
The invention relates to the field of distribution transformer operation monitoring, in particular to a distribution transformer state monitoring data acquisition and processing method and system.
Background
The distribution transformer is one of important equipment of a power distribution network, and the online monitoring of the running state of the distribution transformer is a basic work for ensuring the safe and reliable running of a power distribution and utilization system.
The distribution transformer is a source of user electric energy, the safe and stable operation of the distribution transformer is related to the reliable and continuous power utilization of power users, once the transformer fails, a power failure fault occurs slightly to cause production suspension, inconvenience is brought to the production and life of people, chain reaction is caused seriously to damage other aspects of a power grid, a large-area power failure phenomenon is caused, and a large amount of economic loss is caused; therefore, power enterprises need to strengthen the operation and maintenance management of the transformer, solve the abnormal measures of the transformer in time, improve the reliability of the operation of the transformer and ensure the healthy operation of the transformer; when maintaining and monitoring the paired transformer, generally, an operator needs to regularly inspect the paired transformer, and when finding a problem, the paired transformer is reported and maintained in time.
In the prior art, when the distribution transformer is detected, an operator is required to perform routing inspection and perform manual regular inspection, so that the operation and maintenance of the distribution transformer are time-consuming and labor-consuming, and the detection quality is influenced by human factors and is difficult to guarantee.
Therefore, a method and a system for collecting and processing the state monitoring data of the distribution transformer are provided for the above problems.
Disclosure of Invention
In order to make up for the defects of the prior art and solve at least one problem, the invention provides a method and a system for acquiring and processing state monitoring data of a distribution transformer.
A distribution transformer state monitoring data acquisition processing method comprises the following steps:
s1: collecting the running state data of the distribution transformer, and transmitting the running state data to a terminal through a network;
s2: receiving operation state data of a distribution transformer by using a terminal and setting a threshold value;
s3: comparing the running state data with a threshold value;
s4: based on the comparison result, the alarm is controlled by the terminal network to alarm;
s5: and recording the data and the alarm information received by the terminal, and uploading the data and the alarm information to a cloud platform as records.
Preferably, in S1, the collected data includes a distribution transformer state quantity collected by the sensor unit, the distribution transformer state quantity is derived from data of monitoring an operation state of the distribution transformer, and the data includes: the high-voltage A/B/C three-phase wiring temperature; low-voltage a/b/c three-phase wiring temperature; low-voltage a/b/c three-phase current; iron core grounding current; vibrating the equipment body; the temperature of the equipment body; partial discharge; and (5) the temperature and the humidity of the environment.
A distribution transformer state monitoring data acquisition processing system, applied to any one of the data acquisition processing methods of claims 1-2, characterized in that: the sensor unit includes: the contact type temperature sensor is used for monitoring the high-voltage A/B/C three-phase wiring temperature; the contact type temperature sensor is used for monitoring the low-voltage a/b/c three-phase wiring temperature; the current sensor is used for monitoring low-voltage a/b/c three-phase current; the current sensor is applied to monitoring the grounding current of the iron core; the acceleration sensor is applied to detecting the vibration of the equipment body; the visible light-infrared temperature measurement sensor is applied to monitoring the temperature of the equipment body; the ultrasonic signal sensor is applied to monitoring the partial discharge condition; temperature and humidity sensor is used for monitoring environment temperature and humidity.
Preferably, the terminal is connected with the alarm through a network; the terminal comprises a sensing unit entity, a working power supply and an intelligent sensing unit, wherein the intelligent sensing unit comprises a data acquisition module and processing system software.
Preferably, the sensing unit entity has one of a 1-channel wireless public network and a wireless private network remote communication interface; the sensing unit entity is also provided with 4 RS-485 and 1 power line carrier communication interface; the sensing unit entity is also provided with 2 paths of Ethernet which are used as a terminal remote communication interface and a local communication interface; the sensing unit entity is also provided with a Beidou functional module for collecting and timing local geographical position information.
Preferably, the working power supply is supplied by an alternating-current three-phase four-wire system, and the rated voltage is as follows: AC220V/380V,50Hz; tolerance deviation: -20% to +20%; the power consumption of the whole machine is as follows: <20VA.
Preferably, the data acquisition and processing system software includes a master control scheduling module, a perception data acquisition module, an intelligent data processing module, a communication module, and a configuration processing module.
Preferably, the master control scheduling module is used for scheduling the operations of the perception data acquisition module, the intelligent data processing module, the communication module and the configuration processing module; the sensing data acquisition module acquires power distribution sensing data through communication with the sensor in the step S1, multi-thread technology is adopted to realize acquisition of multi-channel state sensing data, real-time performance of each channel is guaranteed, and meanwhile different sensing data are set to be different acquisition frequencies.
Preferably, the intelligent data processing module is configured to perform fusion, statistics, analysis and calculation on the acquired data to obtain various state parameters of the operation state of the distribution transformer device, and store the acquired state parameters, that is, the alarm information, and upload the alarm information to the cloud platform by using the communication module.
Preferably, the communication module is used for realizing communication with the cloud platform through a network, uploading various state parameters of the running state of the distribution transformer equipment, and receiving instructions of the cloud platform.
The invention has the advantages that:
in the invention, when the real-time monitored operation state quantity data on the distribution transformer is transmitted to the terminal through the network by the sensor, the terminal can input the threshold value of each operation state quantity in advance, after the terminal receives the state quantity data, the received data is compared with the corresponding threshold value, if the received state quantity data is more than or equal to the threshold value, the corresponding alarm is controlled by the network to alarm, and the received operation state quantity data and alarm information of the distribution transformer are recorded, which is beneficial for operation and maintenance personnel to find potential safety hazards existing in the operation of the distribution transformer in time, and if the received state quantity data is less than the threshold value, the received operation state quantity of the distribution transformer is directly uploaded to the cloud platform in real time to be recorded.
The invention adopts six sensors, namely an ultrasonic signal sensor, a visible light-infrared temperature sensor, a current sensor, a vibration sensor, a temperature sensor and a humidity sensor, to realize the real-time acquisition of the monitoring state data of the distribution transformer, and adopts an intelligent sensing unit to store, process and transmit the acquired data, the intelligent sensing unit can be flexibly configured according to the monitoring parameters of specific equipment, and supports various state monitoring parameters, including the measurement, storage and edge calculation processing and transmission of analog quantity, digital quantity and switching value; meanwhile, the scheme provided by the invention can accurately and comprehensively acquire the running state information of the distribution transformer in real time, and lays a foundation for accurately analyzing and judging the health state of the distribution transformer.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without inventive exercise.
FIG. 1 is a flow chart of one embodiment of the present invention;
FIG. 2 is a schematic diagram of the configuration and wiring of a distribution transformer state aware data acquisition logic device of the present invention;
FIG. 3 is a block diagram of a distribution transformer intelligent sensing data acquisition of the present invention;
FIG. 4 is a functional block diagram of an intelligent sensing unit of the power distribution equipment in the invention;
FIG. 5 is a diagram of MQTT communication interaction mechanism in the present invention;
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1-5, a method for collecting and processing status monitoring data of a distribution transformer includes the following steps:
s1: collecting the running state data of the distribution transformer, and transmitting the running state data to a terminal through a network;
s2: receiving operation state data of a distribution transformer by using a terminal and setting a threshold value;
s3: comparing the running state data with a threshold value;
s4: based on the comparison result, the alarm is controlled by the terminal network to alarm;
s5: and recording the data and the alarm information received by the terminal, and uploading the data and the alarm information to a cloud platform as records.
Specifically, when real-time monitoring operation state quantity data on the distribution transformer is transmitted to a terminal through a network through a sensor, the terminal can input threshold values of the operation state quantities in advance, after the terminal receives the state quantity data, the received data are compared with the corresponding threshold values, if the received state quantity data are larger than or equal to the threshold values, corresponding alarms are controlled to give an alarm through the network, the received operation state quantity data and alarm information of the distribution transformer are recorded, operation and maintenance personnel can find potential safety hazards existing in the operation of the distribution transformer in time, and if the received state quantity data are smaller than the threshold values, the received operation state quantity of the distribution transformer is directly uploaded to a cloud platform in real time to be recorded.
In an embodiment of the present invention, in S1, the collected data includes distribution transformer state quantities collected by the sensor unit, the distribution transformer state quantities are derived from data of monitoring of an operation state of the distribution transformer, and the types of the data include: setting 3 measuring points for the high-voltage A/B/C three-phase wiring temperature; setting 3 measuring points for the low-voltage a/b/c three-phase wiring temperature; 3 measuring points are set for low-voltage a/b/c three-phase current; the iron core grounding current is provided with 1 measuring point; vibrating the equipment body and arranging 1 measuring point; setting 1 measuring point for the temperature of the equipment body; partial discharge, setting 1 measuring point; and (3) setting 1 measuring point according to the environment temperature and humidity.
A distribution transformer state monitoring data acquisition and processing system, which is applied to any data acquisition and processing method of claims 1-2, and is characterized in that: the sensor unit includes: the contact type temperature sensors are used for monitoring the wiring temperature of the high-voltage A/B/C three phases, and 3 are arranged; the contact type temperature sensors are used for monitoring the wiring temperature of the low-voltage a/b/c three phases, and 3 are arranged; the current sensors are used for monitoring low-voltage a/b/c three-phase current, and 3 current sensors are arranged; the current sensors are used for monitoring the grounding current of the iron core, and are arranged in 1 number; the acceleration sensor is applied to detecting the vibration of the equipment body, and is provided with 1 acceleration sensor; the visible light-infrared temperature measurement sensor is applied to monitoring the temperature of the equipment body, and 1 sensor is arranged; the ultrasonic signal sensors are used for monitoring the partial discharge condition, and 1 ultrasonic signal sensor is arranged; the temperature and humidity sensor is used for monitoring the temperature and humidity of the environment, and is provided with 1 temperature and humidity sensor;
as an embodiment of the present invention, the terminal is connected to the alarm via a network; the terminal comprises a sensing unit entity, a working power supply and an intelligent sensing unit, wherein the intelligent sensing unit comprises a data acquisition module and processing system software.
The intelligent sensing unit is used for acquiring state original data of the distribution transformer in real time and transmitting the data to the intelligent sensing unit in a wired or wireless mode;
the intelligent sensing unit processes the data to obtain sensing data representing the running state of the equipment;
the intelligent sensing unit transmits the sensing data to the cloud platform through a network, and simultaneously, the data transmission adopts an MQTT protocol, and the intelligent sensing unit is used as an information publisher;
considering the on-line monitoring requirement and the actual situation of the transformer, the manufacturer and model of the sensor configured in this embodiment are as follows:
table 1 distribution transformer logic device configuration list
The sampling interval between the temperature sensor and the temperature and humidity sensor adopted in the embodiment is 6 minutes; the sampling interval of the current sensor is 4 minutes; the sampling interval of the partial discharge sensor is 10 minutes; the sampling frequency of the vibration sensor is 1000Hz, the sampling time is 0.1 second, and the sampling interval is 6 minutes.
As an implementation mode of the invention, the sensing unit entity is provided with one of a 1-channel wireless public network and a wireless private network remote communication interface; the sensing unit entity is also provided with 4 RS-485 and 1 power line carrier communication interface; the sensing unit entity is also provided with 2 paths of Ethernet which are used as a terminal remote communication interface and a local communication interface; the sensing unit entity is also provided with a Beidou functional module for collecting and timing local geographical position information.
The intelligent sensing unit main control board used in the embodiment is designed based on a 'national grid core' SCM701 main control chip, a single-core 4-core processor with a Cortex-A7 framework is adopted, the main frequency can reach 1.2GHz at most, 2GB DDR3 and 4GB FLASH memories are integrated on the periphery, and a pivot OS is adopted to provide a basic software and hardware platform for an intelligent terminal.
The intelligent fusion terminal has the following external interfaces: terminal remote communication interface: the terminal is provided with a 1-channel wireless public network or wireless private network remote communication interface; terminal local communication interface: the terminal is provided with 4 RS-485 and 1 power line carrier communication interface; the terminal is provided with 2 paths of Ethernet, and can be used as a terminal remote communication interface and a local communication interface; the terminal is provided with 4 paths of switching value input interfaces and adopts passive node input; the terminal has a Bluetooth wireless transmission function; the terminal possesses big dipper function for local geographical position information gathers and to the time, and big dipper module is built-in at the terminal, inside distribution transformer promptly, is independent of telecommunication module and local communication module, does not receive the influence that telecommunication module and local communication module upgrading, maintenance etc. brought.
The operating system of the intelligent sensing unit provides a container management technology, a virtual independent running environment is provided, and the mutual influence of application software in the container and other containers or operating systems can be shielded by dividing and isolating physical resources (CPU, memory, disk, network resources and the like) of the terminal part. Software running in the container can be independently and rapidly developed and freely expanded. The operating system platform is a system-level platform developed by the edge computing terminal, and the development system of the intelligent sensing hardware product of the power distribution equipment is Linux3.10. The core technical indexes of the operating system are as follows: and (3) system version: OS _ V04.025; operating system kernel (kernel): linux3.10.108; the container technology comprises the following steps: docker version 18.09.6; mirror image file size: 1.05G; supported communication protocols: TCP/IP, HTTPS, MQTT; number of containers supported: not less than 5; multiple APP in a single container: supporting; upgrading system software: supporting; large support flash:7.62GB; maximum supported DDR:4GB; a multi-core CPU: supporting; built-in MQTT Broker: mosquitto version 1.4.8, mosquitto is an MQTT v3.1 brooker; built-in SQLite database: version 3.11.0.
In one embodiment of the present invention, the operating power supply uses an ac three-phase four-wire system power supply, and the rated voltage: AC220V/380V,50Hz; tolerance deviation: -20% to +20%; the power consumption of the whole machine is as follows: <20VA;
specifically, the sensing unit supplies power by using an alternating-current three-phase four-wire system, and when a system fails (two-phase power is interrupted during three-phase four-wire power supply), an alternating-current power supply can be used for normal operation of the terminal. The power supply technical parameters are as follows: rated voltage: AC220V/380V,50Hz; tolerance deviation: -20% to +20%; the requirements that the terminal should not be mistakenly operated or mistakenly sent in the processes of power-on and power-off and slow rise or slow fall of the power supply voltage are met, and the normal operation is automatically recovered after the power supply is recovered to be normal; the data is saved without loss after the power supply is recovered, and the internal clock normally runs; when the power supply is supplied by a three-phase four-wire power distribution network of a non-effectively grounded system or a neutral point ungrounded system, under the condition of ground fault and 10% overvoltage generated relative to the ground, the two phases of voltages relative to the ground without the ground can reach 1.9 times of nominal voltage, the voltage is maintained for 4 hours, and the terminal is not damaged. After the power supply is recovered to be normal, the terminal works normally, and the data is stored without change; the power consumption of the whole machine is as follows: <20VA. The terminal adopts a super capacitor as a backup power supply and is integrated in the terminal. When a main power supply of the terminal fails, the super capacitor can automatically and seamlessly cut in, the normal work of the terminal is maintained for at least 3 minutes, and the capacity of reporting data to a master station for three times is achieved; when the working power supply is lost, the terminal stores various setting values and record data for not less than 1 year; the maintenance-free time of the super capacitor is not less than 8 years.
As an implementation mode of the invention, the data acquisition and processing system software comprises a master control scheduling module, a perception data acquisition module, an intelligent data processing module, a communication module and a configuration processing module;
specifically, the intelligent sensing unit is developed based on an embedded system, the operating system is a Linux system, C + + language is adopted for development, and the object-oriented technical design is adopted, so that the system operation efficiency is ensured, and the system is safe and stable in operation after long-term operation test.
As an embodiment of the present invention, the master control scheduling module is configured to schedule operations of the sensing data acquisition module, the intelligent data processing module, the communication module, and the configuration processing module; the sensing data acquisition module acquires power distribution sensing data through communication with the sensor in the step S1, multi-thread technology is adopted to realize acquisition of multi-channel state sensing data, real-time performance of each channel is guaranteed, and different sensing data are set to different acquisition frequencies; the module supports various communication modes such as 485/232 communication mode, ethernet communication mode and the like, and supports communication protocols such as Modbus communication protocol.
As an implementation manner of the present invention, the intelligent data processing module is configured to perform fusion, statistics, analysis and calculation on the acquired data to obtain various state parameters of the operation state of the distribution transformer device, and store and upload the acquired state parameters, that is, the alarm information, to the cloud platform by using the communication module; specifically, the state parameters can be classified into telemetry, remote signaling, calculation types (user-defined calculation formulas) and other types (binary systems, character strings and the like) according to the parameter types, so that the local storage of the state parameters is realized, and the reported data is provided for the communication module.
As an embodiment of the present invention, the communication module implements communication with a cloud platform through a network, uploads various state parameters of the operating state of the distribution transformer device, and receives an instruction of the cloud platform; the module is communicated with the cloud platform by using TCP connection and applying an MQTT protocol, so that the reliability and the safety of communication are ensured. In addition, the intelligent sensing unit also comprises a local database design, and the local database stores historical communication messages of all sensors and historical data of all state parameters. The storage amount is set according to system parameters. The tables of the database are defined as:
table 2SensorMessageRecord (sensor message history)
TABLE 3YC_HIS (telemetry data History)
Table 4YX _HIS (remote signaling data history)
TABLE 5CALC _HIS (CALC data History)
TABLE 6OTHER _HIS (OTHER data History)
Design regarding communication protocols:
1) Architecture for a computer system
Power distribution equipment intelligence perception unit APP passes through MQTT and communicates with cloud main website. MQTT employs a publish/subscribe mechanism to complete information interaction, and implements one-to-many message distribution, and fig. 4 is a schematic diagram of an interaction mechanism.
In the information interaction process, the MQTT protocol divides the participants into three identities, which are respectively: publishers, brokers, and subscribers.
The MQTT publisher publishes application messages to other related clients.
MQTT subscribers subscribe to request to receive related application messages and unsubscribe to remove clients receiving application messages.
The MQTT agent (MQTT-Broker) has the main functions of receiving network connection from a client, receiving application messages issued by the client, processing subscription and unsubscribe requests of the client, forwarding the application messages to clients meeting conditions for subscription and the like.
The publisher and the subscriber of the message are clients, and the proxy of the message is a server.
The MQTT client is defined as equipment or an application program using an MQTT protocol and has the following functions: publishing information that other clients may subscribe to; subscribing the messages published by other clients; unsubscribe or delete messages for the application; disconnecting the server side;
MQTT server end is defined as the equipment or application program which is positioned between the client ends, processes the client end request and forwards the client end information, and the MQTT server end has the following functions: accepting a network connection from a client; receiving application information issued by a client; processing subscription and unsubscription requests from the client; forwarding the application program message to the subscribed client;
2) MQTT message body
The message body transmitted by the MQTT can be divided into two parts, namely: a topic and a message payload. The topic is the type of the message, and after the subscriber subscribes, the subscriber can receive the message load of the topic; the message payload, i.e. the content of the message, refers to the data that the subscriber specifically wants to use.
3) MQTT protocol application
1. The MQTT protocol of the communication between the cloud master station and the intelligent sensing unit APP uses a version number: 3.1.1.
2. the QoS of the communication between the cloud master station and the intelligent sensing unit APP is 0 (at most once).
Note: MQTT provides three levels of QoS quality of service:
0: "at most once," the best effort that the operating environment can provide to distribute messages. Messages may be lost. 1: "at least once" ensures that the message can arrive, but can be repeated. 2: "once only", it is guaranteed that the message arrives only once.
3. Deployment principle:
the MQTT browser is deployed in a cloud master station server, and the port number is 1883;
b. the intelligent sensing unit APP is used as a client of the MQTT, is connected with the MQTT browser, and is communicated with the main station application through issuing messages and subscribing messages;
c. the main station application serves as a client of the MQTT, is connected with the MQTT browser, and is communicated with the intelligent sensing unit APP through issuing messages and subscribing messages.
4) Client side and server side connection
The server side creates a user, and sets a password to be distributed to the client side. The client is connected with the server according to the user name and the password.
TABLE 7MQTT protocol subject
In the invention, when the real-time monitored operation state quantity data on the distribution transformer is transmitted to the terminal through the network by the sensor, the terminal can input the threshold value of each operation state quantity in advance, after the terminal receives the state quantity data, the received data is compared with the corresponding threshold value, if the received state quantity data is more than or equal to the threshold value, the corresponding alarm is controlled by the network to alarm, and the received operation state quantity data and alarm information of the distribution transformer are recorded, which is beneficial for operation and maintenance personnel to find potential safety hazards existing in the operation of the distribution transformer in time, and if the received state quantity data is less than the threshold value, the received operation state quantity of the distribution transformer is directly uploaded to the cloud platform in real time to be recorded.
The invention adopts six sensors, namely an ultrasonic signal sensor, a visible light-infrared temperature sensor, a current sensor, a vibration sensor, a temperature sensor and a humidity sensor, to realize the real-time acquisition of the monitoring state data of the distribution transformer, and adopts an intelligent sensing unit to store, process and transmit the acquired data, the intelligent sensing unit can be flexibly configured according to the monitoring parameters of specific equipment, and supports various state monitoring parameters, including the measurement, storage and edge calculation processing and transmission of analog quantity, digital quantity and switching value; meanwhile, the scheme provided by the invention can accurately and comprehensively acquire the running state information of the distribution transformer in real time, and lays a foundation for accurately analyzing and judging the health state of the distribution transformer.
In the description herein, references to the description of "one embodiment," "an example," "a specific example" or the like are intended to mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
The foregoing shows and describes the general principles, essential features, and advantages of the invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are given by way of illustration of the principles of the present invention, but that various changes and modifications may be made without departing from the spirit and scope of the invention, and such changes and modifications are within the scope of the invention as claimed.
Claims (10)
1. A distribution transformer state monitoring data acquisition processing method is characterized in that: the processing method comprises the following steps:
s1: collecting the running state data of the distribution transformer and transmitting the running state data to a terminal through a network;
s2: receiving operation state data of a distribution transformer by using a terminal and setting a threshold value;
s3: comparing the running state data with a threshold value;
s4: based on the comparison result, the alarm is controlled by the terminal network to alarm;
s5: and recording the data and the alarm information received by the terminal, and uploading the data and the alarm information to a cloud platform as records.
2. The method for collecting and processing the state monitoring data of the distribution transformer according to claim 1, wherein the method comprises the following steps: in S1, the collected operation state data comprises distribution transformer state quantity collected by a sensor unit, the distribution transformer state quantity is derived from data of monitoring the operation state of the distribution transformer, and the types of the distribution transformer state quantity comprise: high voltage A/B/C three-phase connection temperature; low-voltage a/b/c three-phase wiring temperature; low-voltage a/b/c three-phase current; grounding current of the iron core; vibrating the equipment body; the temperature of the equipment body; partial discharge; and (4) the temperature and the humidity of the environment.
3. A distribution transformer state monitoring data acquisition and processing system, which is applied to any data acquisition and processing method of claims 1-2, and is characterized in that: the sensor unit includes: the contact type temperature sensor is used for monitoring the high-voltage A/B/C three-phase wiring temperature; the contact type temperature sensor is used for monitoring the low-voltage a/b/c three-phase wiring temperature; the current sensor is used for monitoring low-voltage a/b/c three-phase current; the current sensor is applied to monitoring the grounding current of the iron core; the acceleration sensor is applied to detecting the vibration of the equipment body; the visible light-infrared temperature measurement sensor is applied to monitoring the temperature of the equipment body; the ultrasonic signal sensor is applied to monitoring the partial discharge condition; temperature and humidity sensor is used for monitoring environment temperature and humidity.
4. The distribution transformer state monitoring data acquisition and processing system of claim 3, wherein: the terminal is connected with the alarm through a network; the terminal comprises a sensing unit entity, a working power supply and an intelligent sensing unit, wherein the intelligent sensing unit comprises a data acquisition module and processing system software.
5. The distribution transformer state monitoring data acquisition and processing system of claim 4, characterized in that: the sensing unit entity is provided with one of a 1-channel wireless public network and a wireless private network remote communication interface; the sensing unit entity is also provided with 4 RS-485 and 1 power line carrier communication interface; the sensing unit entity is also provided with 2 paths of Ethernet which are used as a terminal remote communication interface and a local communication interface; the sensing unit entity is also provided with a Beidou functional module for collecting and timing local geographical position information.
6. The distribution transformer state monitoring data acquisition and processing system of claim 5, wherein: the working power supply is supplied with power by using an alternating-current three-phase four-wire system, and has rated voltage: AC220V/380V,50Hz; tolerance deviation: -20% to +20%; the power consumption of the whole machine is as follows: <20VA.
7. The distribution transformer state monitoring data acquisition and processing system of claim 6, wherein: the data acquisition and processing system software comprises a master control scheduling module, a perception data acquisition module, an intelligent data processing module, a communication module and a configuration processing module.
8. The system according to claim 7, wherein: the master control scheduling module is used for scheduling the operation of the perception data acquisition module, the intelligent data processing module, the communication module and the configuration processing module; the sensing data acquisition module acquires data through communication with the sensor in the step S1, multi-thread technology is adopted to realize multi-channel state sensing data acquisition, the real-time performance of each channel is guaranteed, and different sensing data are set to different acquisition frequencies.
9. The distribution transformer state monitoring data acquisition and processing system of claim 8, wherein: the intelligent data processing module is used for carrying out fusion, statistics and analysis calculation on the collected data to obtain various state parameters of the running state of the distribution transformer equipment, and storing the collected state parameters, namely the alarm information, and uploading the alarm information to the cloud platform by using the communication module.
10. The distribution transformer state monitoring data acquisition and processing system of claim 9, wherein: the communication module is communicated with the cloud platform through a network, uploads various state parameters of the running state of the distribution transformer equipment and receives instructions of the cloud platform.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310067587.7A CN115951271A (en) | 2023-01-18 | 2023-01-18 | Distribution transformer state monitoring data acquisition processing method and system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310067587.7A CN115951271A (en) | 2023-01-18 | 2023-01-18 | Distribution transformer state monitoring data acquisition processing method and system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN115951271A true CN115951271A (en) | 2023-04-11 |
Family
ID=87290852
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202310067587.7A Pending CN115951271A (en) | 2023-01-18 | 2023-01-18 | Distribution transformer state monitoring data acquisition processing method and system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN115951271A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117544528A (en) * | 2023-12-27 | 2024-02-09 | 广州思泰信息技术有限公司 | Communication message monitoring and analyzing method, system, terminal and storage medium |
-
2023
- 2023-01-18 CN CN202310067587.7A patent/CN115951271A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117544528A (en) * | 2023-12-27 | 2024-02-09 | 广州思泰信息技术有限公司 | Communication message monitoring and analyzing method, system, terminal and storage medium |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| RU2518178C2 (en) | System and method for control of electric power system | |
| CN101534021B (en) | Multimode data acquisitions and processing method applied to power automation system | |
| KR100964298B1 (en) | A network analysis system | |
| CN109151072A (en) | A kind of edge calculations system based on mist node | |
| CN110797975A (en) | Intelligent transformer area system and management method | |
| CN103852744A (en) | Distributed online monitoring system and method for electric energy metering device | |
| CN103532749B (en) | A kind of main station information management system | |
| CN104123134A (en) | Intelligent electricity use data management method and system based on AMI and J2EE | |
| CN108011584A (en) | Photovoltaic cell is monitored on-line and intelligent management system | |
| CN102169158A (en) | Steady state oscillograph for power system | |
| CN106357414B (en) | Information interacting method and system for base station electric generation management | |
| CN109240126A (en) | A kind of distributed application services monitoring system and method with simulated operation function | |
| CN110995859A (en) | Intelligent transformer substation supporting platform system based on ubiquitous Internet of things | |
| CN108777637A (en) | A kind of data center's total management system and method for supporting server isomery | |
| CN115766398B (en) | Station area electricity consumption information acquisition fault analysis system based on edge calculation | |
| CN103576057A (en) | On-line insulation monitoring system and on-line insulation monitoring method | |
| CN115951271A (en) | Distribution transformer state monitoring data acquisition processing method and system | |
| CN113364643A (en) | Internet of things client protocol based edge side APP simulation test system | |
| CN102338835B (en) | Power quality dynamic monitoring system | |
| CN208890843U (en) | A kind of edge calculations system based on mist node | |
| CN204906004U (en) | Distributed intelligent regional power grid of network layering | |
| CN203932958U (en) | Power grid integrated intelligence is adjusted and online nucleus correcting system | |
| CN109357166A (en) | LoRa type low-power consumption gas pipeline cathodic protection potential monitors system | |
| CN111030527A (en) | Intelligent terminal of diesel generating set based on narrow-band Internet of things and edge calculation | |
| CN105676061A (en) | System and method for testing disturbance identification function of wide-area measurement system |
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 |