CN115459449A - Transformer substation monitoring method and system capable of analyzing operation performance of transformer in real time - Google Patents
Transformer substation monitoring method and system capable of analyzing operation performance of transformer in real time Download PDFInfo
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Abstract
The invention discloses a transformer substation monitoring system capable of analyzing the operation performance of a transformer in real time. According to the transformer substation monitoring method and system capable of analyzing the operation performance of the transformer substation in real time, transformer parameters monitored by the transformer substation are processed through a CPU, fault types in a historical fault database are compared in combination with a sample retrieval algorithm, the operation performance of the transformer is analyzed in real time through a Flink real-time calculation engine and an internal algorithm of the CPU, parameters of the transformer in the operation process are displayed through a visual terminal, when a determined result is obtained through transformer fault analysis, updating of the historical fault database of a database server is completed through rsync + inotify data real-time backup, and therefore the transformer substation monitoring method and system can conveniently have the function of analyzing the operation performance of the transformer in real time.
Description
Technical Field
The invention relates to the technical field of transformer substation monitoring, in particular to a transformer substation monitoring method and a transformer substation monitoring system capable of analyzing the operation performance of a transformer in real time.
Background
The transformer substation is a place for converting voltage and current, receiving electric energy and distributing electric energy in an electric power system. The electrical equipment in the substation is divided into primary equipment and secondary equipment. The primary equipment refers to equipment for directly producing, conveying, distributing and using electric energy, and mainly comprises a transformer, a high-voltage circuit breaker, a disconnecting switch, a bus, a lightning arrester, a capacitor, an electric reactor and the like.
A power transformer is a stationary electrical device that is used to transform an ac voltage (current) of a certain value into another voltage (current) of the same frequency or different values. The electric energy transmission is realized according to the principle of electromagnetic induction. Transformers can be classified into power transformers, test transformers, instrument transformers, and transformers for special purposes, in terms of their use: the power transformer is a necessary device for power transmission and distribution and power consumer distribution. The power transformer is used as a key device in a power system, and the safety and stability of the operation of the power transformer are closely related to the healthy development of the society. Once a transformer breaks down, normal production and stable life are influenced, and huge economic loss can be caused. Generally, a transformer substation is provided with cameras around the transformer to monitor the real-time environment of the transformer, and the transformer substation periodically detects parameters such as the temperature of the transformer manually, so that the operation performance of the transformer is analyzed through the center of the transformer substation.
The conventional transformer generally adopts a manual inspection mode to complete the timing monitoring of a transformer substation, data uploading is generally performed by adopting wireless data transmission in the process of detecting the operation parameters of the transformer, but diagnosis and identification are generally performed manually according to experience during data analysis, and the operation mode is difficult to analyze the operation performance of the transformer in time.
Disclosure of Invention
The invention aims to provide a transformer substation monitoring method and a transformer substation monitoring system capable of analyzing the operation performance of a transformer in real time, and aims to solve the problem that the operation performance of the transformer is difficult to analyze in time because the diagnosis and identification are generally carried out manually according to experience when data analysis is carried out in the operation process of the transformer in the background technology.
In order to achieve the purpose, the invention provides the following technical scheme: a transformer substation monitoring system capable of analyzing the operation performance of a transformer in real time comprises a monitoring host, an operation monitoring unit and an intelligent station online monitoring IED,
the monitoring host computer sets up in the transformer substation surveillance center, the monitoring host computer passes through the data cable and connects visual terminal, the monitoring host computer passes through cable junction warning pilot lamp, the inside of monitoring host computer sets up network interface module, and the monitoring host computer passes through network interface module and 4G wireless communication network wireless connection, the input of monitoring host computer passes through 4G wireless communication network respectively wireless connection data collection station and intelligent station on-line monitoring IED, the access end of data collection station and intelligent station on-line monitoring IED connects the operation monitoring unit simultaneously, the operation monitoring unit sets up on the transformer.
Preferably, the monitoring host comprises a CPU, a memory and a database server, and the CPU is arranged on a circuit main board inside the monitoring host.
Preferably, the CPU is connected to the memory through a circuit, and a database server is further disposed inside the monitoring host and electrically connected to the CPU.
Preferably, the operation monitoring unit comprises a temperature monitoring module, an oil level monitoring module, a vibration monitoring unit, an open-loop current sensor and an SF6 gas transmitter, wherein the temperature monitoring module is connected to the transformer and adopts a winding thermometer, and the temperature monitoring module is connected with a transformer winding through an induction joint.
Preferably, the oil level monitoring module is installed on an insulating oil container of the transformer, the vibration monitoring unit is installed on a shell of the transformer, and output ports of the temperature monitoring module, the oil level monitoring module and the vibration monitoring unit are all connected with the data collector.
Preferably, the open-loop current sensor is connected with the transformer wiring, the SF gas transmitter is installed with the transformer, the inside of the SF6 gas transmitter is provided with the SF6 gas sensor.
Preferably, the output interfaces of the open-loop current sensor and the SF6 gas transmitter are simultaneously connected with the intelligent station online monitoring IED.
A transformer substation monitoring method capable of analyzing the operation performance of a transformer in real time comprises the following steps:
s1: monitoring the real-time operation of the transformer, namely monitoring the temperature, the oil level, the vibration, the operation parameters and the safety of a plurality of transformers of the transformer substation on line by adopting a temperature monitoring module, an oil level monitoring module, a vibration monitoring unit, an open-loop current sensor and an SF6 gas transmitter;
s2: uploading transformer operation data in real time, acquiring temperature data, oil level data and vibration data of the transformer during operation through a data acquisition device, acquiring operation parameters and safety data of the transformer during operation through an intelligent station online monitoring IED, and uploading the data acquisition device and the intelligent station online monitoring IED to a monitoring host in a transformer substation through a 4G wireless communication network;
s3: constructing a transformer historical fault database, retrieving samples of transformer fault types of a transformer substation through a big data search engine, internally classifying through a database server, and importing the types and reasons of the transformer faults of the transformer substation into the database server through an external input module;
s4: calculating and analyzing transformer faults in real time, collecting and processing transformer parameters monitored by the transformer substation through a CPU (central processing unit) in a monitoring host, processing and analyzing uploaded data by using a Flink real-time calculation engine, and comparing fault types in a database server through the CPU in combination with a sample retrieval algorithm;
s5: data show and warning suggestion are uploaded fault information to visual terminal after CPU analysis goes out the trouble type to the real-time running parameter of transformer that CPU handled also demonstrates through visual terminal, all sets up alarm indicator to transformer fault point of transformer substation monitoring, comes the quick discernment transformer fault direction of assistant personnel through the alarm indicator who lights when the trouble.
Preferably, the data collector in step S2 uploads the data to the monitoring host through a UDP real-time transmission protocol and a 4G wireless communication network.
Preferably, the intelligent station online monitoring IED described in step S2 uploads data to the monitoring host through ethernet in cooperation with the 4G wireless communication network.
Compared with the prior art, the invention has the beneficial effects that:
1. according to the transformer substation monitoring method and system capable of analyzing the running performance of the transformer substation in real time, transformer parameters monitored by the transformer substation are processed through a CPU, fault types in a historical fault database are compared in combination with a sample retrieval algorithm, the running performance of the transformer is analyzed in real time through a Flink real-time calculation engine and an internal algorithm of the CPU, parameters of the running process of the transformer are displayed through a visual terminal, when a determined result is obtained through transformer fault analysis, updating of the historical fault database of a database server is completed through rsync + inotify data real-time backup, and therefore the transformer substation monitoring method and system can conveniently have the function of analyzing the running performance of the transformer in real time;
2. according to the transformer substation monitoring method and system capable of analyzing the operation performance of the transformer in real time, an LSTM neural network is constructed and obtained through real-time temperature monitoring of a temperature monitoring module to establish a transformer operation temperature prediction model, the oil level monitoring module of an ultrasonic liquid level detector is used for monitoring the insulating oil liquid level of the transformer, meanwhile, a vibration acceleration sensor of a voiceprint vibration online monitoring system is used for monitoring voiceprints generated by vibration of the transformer, an open-loop current sensor of an intelligent station online monitoring IED is used for monitoring alternating current and direct current flowing through a neutral point of the transformer in real time and continuously, so that state parameters of the transformer are tracked and monitored, and SF6 concentration of the transformer can be monitored through an SF6 gas transmitter, so that transient faults and sudden faults of the transformer are sensitively and quickly responded and identified, and transformer maintenance personnel can timely maintain and repair the transformer of the transformer substation according to the transformer substation monitoring method and system.
Drawings
FIG. 1 is a schematic diagram of the system of the present invention;
FIG. 2 is a schematic diagram of a CPU of the present invention;
FIG. 3 is a schematic flow chart of the present invention.
In the figure: 1. monitoring the host; 101. a CPU; 102. a memory; 103. a database server; 2. a visual terminal; 3. an alarm indicator light; 4. a 4G wireless communication network; 5. a data acquisition unit; 6. an operation monitoring unit; 601. a temperature monitoring module; 602. an oil level monitoring module; 603. a vibration monitoring unit; 604. an open-loop current sensor; 605. an SF6 gas transmitter; 7. and the intelligent station monitors the IED on line.
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. 1-3, the present invention provides a technical solution: the utility model provides a transformer substation monitoring system that can real-time analysis transformer running performance, including monitoring host 1, operation monitoring unit 6 and intelligent station on-line monitoring IED7, monitoring host 1 sets up in the transformer substation surveillance center, monitoring host 1 passes through data cable and connects visual terminal 2, monitoring host 1 passes through cable junction warning indicator 3, monitoring host 1's inside sets up network interface module, and monitoring host 1 passes through network interface module and 4G wireless communication network 4 wireless connection, monitoring host 1's input passes through 4G wireless communication network 4 respectively wireless connection data collection station 5 and intelligent station on-line monitoring IED7, operation monitoring unit 6 is connected simultaneously to the incoming end of data collection station 5 and intelligent station on-line monitoring IED7, operation monitoring unit 6 sets up on the transformer.
The monitoring host 1 comprises a CPU101, a memory 102 and a database server 103, wherein the CPU101 is arranged on a circuit main board in the monitoring host 1; the CPU101 is connected with the memory 102 through a circuit, a database server 103 is further arranged inside the monitoring host 1, the database server 103 is electrically connected with the CPU101, the CPU101 is respectively in bidirectional circuit connection with the memory 102 and the database server 103, and the database server 103 is an AS6604T type server.
In specific implementation, the CPU101 is used for collecting transformer operation parameters uploaded by the IED7 through the data collector 5 and the intelligent station, the transformer parameters monitored by the transformer substation are processed through the CPU101, the uploaded data are processed and analyzed through the Flink real-time calculation engine, fault types in a historical fault database are compared through a sample retrieval algorithm, meanwhile, the operation performance of the transformer is analyzed in real time through the Flink real-time calculation engine and an internal algorithm of the CPU101, the parameters of the transformer operation process can be displayed in multiple aspects through the visual terminal 2, fault points in the specific direction of the transformer can be prompted when the set alarm indicator lamp 3 is turned on, so that an assistant can rapidly identify transformer faults, and when a determined result is obtained through transformer fault analysis, updating of the historical fault database of the database server 103 is completed through rsync and inotify data real-time backup.
The operation monitoring unit 6 comprises a temperature monitoring module 601, an oil level monitoring module 602, a vibration monitoring unit 603, an open-loop current sensor 604 and an SF6 gas transmitter 605, wherein the temperature monitoring module 601 is connected to the transformer, the temperature monitoring module 601 adopts a winding thermometer, and the temperature monitoring module 601 is connected with a transformer winding through an induction joint; the oil level monitoring module 602 is installed on an insulating oil container of a transformer, the oil level monitoring module 602 adopts an ultrasonic liquid level detector, the vibration monitoring unit 603 is installed on a transformer shell, the vibration monitoring unit 603 adopts a voiceprint vibration online monitoring system, the voiceprint vibration online monitoring system is composed of a vibration acceleration sensor, a voiceprint monitoring and edge calculating device and a remote diagnosis service center, and output ports of the temperature monitoring module 601, the oil level monitoring module 602 and the vibration monitoring unit 603 are all connected with the data collector 5; the open-loop current sensor 604 is connected with a transformer wire, the SF6 gas transmitter 605 is installed with the transformer, and the SF6 gas sensor is arranged inside the SF6 gas transmitter 605; the output interfaces of the open-loop current sensor 604 and the SF6 gas transmitter 605 are simultaneously connected with the intelligent station online monitoring IED7, the open-loop current sensor 604 and the SF6 gas transmitter 605 are both connected to the transformer direct-current magnetic bias online monitoring system, and the transformer direct-current magnetic bias online monitoring system is connected with the intelligent station online monitoring IED7 through the acquisition instrument.
During specific implementation, an LSTM neural network is established through real-time temperature monitoring of a temperature monitoring module 601 to establish a transformer operation temperature prediction model, the insulating oil level of the transformer is monitored through an oil level monitoring module 602 of an ultrasonic liquid level detector, meanwhile, voiceprints generated by vibration of the transformer are monitored through a vibration acceleration sensor of a voiceprint vibration online monitoring system, collected data are packaged through an edge computing device, intelligent diagnosis is conducted through a remote diagnosis service center, an open-loop current sensor 604 of an intelligent station online monitoring IED7 monitors alternating currents and direct currents flowing through a neutral point of the transformer in real time and continuously, state parameters of the transformer are tracked and monitored, switches, circuit breakers and other equipment in power transmission and distribution are insulated through SF6 gas, the SF6 concentration of the transformer can be monitored through an SF6 gas transmitter 605, transient faults and sudden faults of the transformer can be sensitively and rapidly responded and identified, and power transformation maintenance personnel can timely maintain and repair the transformer.
A transformer substation monitoring method capable of analyzing operation performance of a transformer in real time comprises the following steps:
s1: monitoring the real-time operation of the transformer, namely, carrying out online monitoring on the temperature, oil level, vibration, operation parameters and safety of a plurality of transformers of the transformer substation by adopting a temperature monitoring module 601, an oil level monitoring module 602, a vibration monitoring unit 603, an open-loop current sensor 604 and an SF6 gas transmitter 605, uploading the temperature parameters monitored by the transformers at intervals of 10 minutes through the temperature monitoring module 601, and acquiring continuous temperature parameters of 144 time points within 24 hours, thereby establishing a transformer operation temperature prediction model through an LSTM neural network;
s2: uploading transformer operation data in real time, acquiring temperature data, oil level data and vibration data of the transformer in operation through a data acquisition device 5, uploading the data to a monitoring host 1 through a UDP (user datagram protocol) real-time transmission protocol and a 4G wireless communication network 4 through the data acquisition device 5, acquiring operation parameters and safety data of the transformer in operation through an intelligent station online monitoring IED7, uploading the data to the monitoring host 1 through the Ethernet in cooperation with the 4G wireless communication network 4 through the intelligent station online monitoring IED7, and uploading the data to the monitoring host 1 in a transformer substation through the 4G wireless communication network 4 through the data acquisition device 5 and the intelligent station online monitoring IED 7;
s3: constructing a historical fault database of the transformer, retrieving samples of transformer fault types of the transformer substation through a big data search engine, internally classifying through a database server 103, and importing the types and reasons of the transformer faults of the transformer substation into the database server 103 through an external input module, so that the historical fault database of the transformer is constructed through the classified data of the database server 103;
s4: calculating and analyzing transformer faults in real time, collecting and processing transformer parameters monitored by the transformer substation through a CPU (Central processing Unit) 101 in a monitoring host 1, processing and analyzing uploaded data by using a flash real-time calculation engine, comparing fault types in a database server 103 by combining the CPU101 with a sample retrieval algorithm, analyzing the running performance of the transformer in real time through the flash real-time calculation engine and the CPU101, and backing up the analysis data of the running performance of the transformer in real time through rsync + inotify;
s5: data show and warning suggestion are uploaded fault information to visual terminal 2 after CPU101 analysis goes out the trouble type to the real-time running parameter of transformer that CPU101 was handled also shows through visual terminal 2, all sets up alarm indicator 3 to transformer trouble point of transformer substation monitoring, comes the quick discernment transformer fault direction of auxiliary personnel through the alarm indicator 3 that lights up when the trouble.
In summary, the temperature monitoring module 601, the oil level monitoring module 602, the vibration monitoring unit 603, the open-loop current sensor 604 and the SF6 gas transmitter 605 are used for monitoring the temperature, the oil level, the vibration, the operation parameters and the safety parameters of the transformer in real time, the CPU101 of the monitoring host 1 is used for processing the transformer parameters monitored by the transformer substation, the parameters of the transformer operation process can be displayed in multiple aspects through the visual terminal 2, and the set alarm indicator lamp 3 is used for performing fault prompt, so that the transformer substation can complete real-time analysis and fault early warning prompt on the transformer.
Although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that various changes in the embodiments and/or modifications of the invention can be made, and equivalents and modifications of some features of the invention can be made without departing from the spirit and scope of the invention.
Claims (10)
1. The utility model provides a but transformer substation monitoring system of real-time analysis transformer running performance, includes monitoring host computer (1), operation monitoring unit (6) and intelligent station on-line monitoring IED (7), its characterized in that:
monitoring host computer (1) sets up in the transformer substation surveillance center, visual terminal (2) is connected through the data cable in monitoring host computer (1), cable junction warning pilot lamp (3) are passed through in monitoring host computer (1), the inside of monitoring host computer (1) sets up network interface module, and monitors host computer (1) through network interface module and 4G wireless communication network (4) wireless connection, the input of monitoring host computer (1) passes through 4G wireless communication network (4) respectively wireless connection data collection station (5) and intelligent station on-line monitoring IED (7), operation monitoring unit (6) is connected simultaneously to the incoming end of data collection station (5) and intelligent station on-line monitoring IED (7), operation monitoring unit (6) set up on the transformer.
2. The substation monitoring system capable of analyzing the operation performance of the transformer in real time according to claim 1, wherein: the monitoring host (1) comprises a CPU (101), a memory (102) and a database server (103), wherein the CPU (101) is arranged on a circuit main board inside the monitoring host (1).
3. The substation monitoring system capable of analyzing the operation performance of the transformer in real time according to claim 2, wherein: the monitoring system comprises a monitoring host (1), a CPU (101), a memory (102), a database server (103), a data processing unit (CPU) and a data processing unit (CPU), wherein the CPU (101) is connected with the memory (102) through a circuit, the database server (103) is further arranged inside the monitoring host (1), and the database server (103) is electrically connected with the CPU (101).
4. The substation monitoring system capable of analyzing the operation performance of the transformer in real time according to claim 1, wherein: the operation monitoring unit (6) comprises a temperature monitoring module (601), an oil level monitoring module (602), a vibration monitoring unit (603), an open-loop current sensor (604) and an SF6 gas transmitter (605), wherein the temperature monitoring module (601) is connected to the transformer, the temperature monitoring module (601) adopts a winding thermometer, and the temperature monitoring module (601) is connected with a transformer winding through an induction joint.
5. The substation monitoring system capable of analyzing the operation performance of the transformer in real time according to claim 4, wherein: the oil level monitoring module (602) is installed on an insulating oil container of the transformer, the vibration monitoring unit (603) is installed on a transformer shell, and output ports of the temperature monitoring module (601), the oil level monitoring module (602) and the vibration monitoring unit (603) are all connected with the data collector (5).
6. The substation monitoring system capable of analyzing the operation performance of the transformer in real time according to claim 4, wherein: the open-loop current sensor (604) is connected with a transformer wire, the SF6 gas transmitter (605) is installed with the transformer, and the SF6 gas sensor is arranged inside the SF6 gas transmitter (605).
7. The substation monitoring system capable of analyzing the operation performance of the transformer in real time according to claim 6, wherein: the output interfaces of the open-loop current sensor (604) and the SF6 gas transmitter (605) are simultaneously connected with the intelligent station online monitoring IED (7).
8. A transformer substation monitoring method capable of analyzing operation performance of a transformer in real time is characterized by comprising the following steps:
s1: monitoring the real-time operation of the transformer, and carrying out online monitoring on a plurality of transformers of the transformer substation;
s2: uploading transformer operation data in real time;
s3: constructing a historical fault database of the transformer;
s4: calculating and analyzing the fault of the transformer in real time;
s5: data display and alarm prompt.
9. The transformer substation monitoring method capable of analyzing the operation performance of the transformer in real time according to claim 8, wherein the transformer substation monitoring method comprises the following steps: in the step S2, the transformer operation data is uploaded through a UDP real-time transmission protocol and a 4G wireless communication network (4).
10. The transformer substation monitoring method capable of analyzing the operation performance of the transformer in real time according to claim 8, wherein the transformer substation monitoring method comprises the following steps: in the step S2, the transformer operation data are uploaded through the Ethernet in cooperation with the 4G wireless communication network (4).
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116316429A (en) * | 2023-01-10 | 2023-06-23 | 广东电网有限责任公司佛山供电局 | Distribution transformer relay protection method and device based on insulating oil on-line monitoring |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116316429A (en) * | 2023-01-10 | 2023-06-23 | 广东电网有限责任公司佛山供电局 | Distribution transformer relay protection method and device based on insulating oil on-line monitoring |
| CN116316429B (en) * | 2023-01-10 | 2023-12-19 | 广东电网有限责任公司佛山供电局 | Distribution transformer relay protection method and device based on insulating oil on-line monitoring |
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