CN111564899B - Remote regulation and control system of power transformer oil filter - Google Patents
Remote regulation and control system of power transformer oil filter Download PDFInfo
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- CN111564899B CN111564899B CN202010280485.XA CN202010280485A CN111564899B CN 111564899 B CN111564899 B CN 111564899B CN 202010280485 A CN202010280485 A CN 202010280485A CN 111564899 B CN111564899 B CN 111564899B
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- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B19/00—Programme-control systems
- G05B19/02—Programme-control systems electric
- G05B19/04—Programme control other than numerical control, i.e. in sequence controllers or logic controllers
- G05B19/05—Programmable logic controllers, e.g. simulating logic interconnections of signals according to ladder diagrams or function charts
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F27/00—Details of transformers or inductances, in general
- H01F27/08—Cooling; Ventilating
- H01F27/10—Liquid cooling
- H01F27/12—Oil cooling
- H01F27/14—Expansion chambers; Oil conservators; Gas cushions; Arrangements for purifying, drying, or filling
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B90/00—Enabling technologies or technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02B90/20—Smart grids as enabling technology in buildings sector
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P90/00—Enabling technologies with a potential contribution to greenhouse gas [GHG] emissions mitigation
- Y02P90/02—Total factory control, e.g. smart factories, flexible manufacturing systems [FMS] or integrated manufacturing systems [IMS]
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y04—INFORMATION OR COMMUNICATION TECHNOLOGIES HAVING AN IMPACT ON OTHER TECHNOLOGY AREAS
- Y04S—SYSTEMS INTEGRATING TECHNOLOGIES RELATED TO POWER NETWORK OPERATION, COMMUNICATION OR INFORMATION TECHNOLOGIES FOR IMPROVING THE ELECTRICAL POWER GENERATION, TRANSMISSION, DISTRIBUTION, MANAGEMENT OR USAGE, i.e. SMART GRIDS
- Y04S20/00—Management or operation of end-user stationary applications or the last stages of power distribution; Controlling, monitoring or operating thereof
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y04—INFORMATION OR COMMUNICATION TECHNOLOGIES HAVING AN IMPACT ON OTHER TECHNOLOGY AREAS
- Y04S—SYSTEMS INTEGRATING TECHNOLOGIES RELATED TO POWER NETWORK OPERATION, COMMUNICATION OR INFORMATION TECHNOLOGIES FOR IMPROVING THE ELECTRICAL POWER GENERATION, TRANSMISSION, DISTRIBUTION, MANAGEMENT OR USAGE, i.e. SMART GRIDS
- Y04S40/00—Systems for electrical power generation, transmission, distribution or end-user application management characterised by the use of communication or information technologies, or communication or information technology specific aspects supporting them
- Y04S40/12—Systems for electrical power generation, transmission, distribution or end-user application management characterised by the use of communication or information technologies, or communication or information technology specific aspects supporting them characterised by data transport means between the monitoring, controlling or managing units and monitored, controlled or operated electrical equipment
- Y04S40/126—Systems for electrical power generation, transmission, distribution or end-user application management characterised by the use of communication or information technologies, or communication or information technology specific aspects supporting them characterised by data transport means between the monitoring, controlling or managing units and monitored, controlled or operated electrical equipment using wireless data transmission
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Automation & Control Theory (AREA)
- Testing And Monitoring For Control Systems (AREA)
- Fluid-Pressure Circuits (AREA)
Abstract
The invention relates to the field of power information monitoring systems, and particularly discloses a remote regulation and control system of a power transformer oil filter, which comprises the following components: the system comprises a data acquisition module, a network hard disk video recorder, a video monitoring module, a PLC (programmable logic controller), an A/D (analog/digital) module, an alarm module, a communication module, a cloud end and a mobile end; the PLC is respectively connected with the data acquisition module, the network hard disk video recorder and the A/D module, the network hard disk video recorder is connected with the video monitoring module, the A/D module is connected with the communication module, the communication module is in wireless connection with the cloud, and the cloud is in wireless connection with the mobile terminal. The invention adds a PLC remote control system based on the original relay control of the oil filter, monitors the internal parameters of the oil filter in real time, and enhances the self-maintenance capability of the oil filter when the oil filter fails. And uploading the internal parameters of the oil filter and the video monitoring data to the cloud in real time by utilizing a mobile network, checking various real-time parameters through terminals such as a mobile phone, a notebook computer and the like, realizing remote monitoring, and relieving manual inspection.
Description
Technical Field
The invention relates to the field of power information monitoring systems, in particular to a remote regulation and control system of a power transformer oil filter.
Background
With the continuous development of smart grid technology, requirements on operation stability and safety of a power system are higher and higher. Transformers are used as important equipment for changing voltage, and are widely used in places such as power substations, power plants, operation lines and the like, and the covered areas are continuously enlarged. The transformer oil can play roles of insulation, heat dissipation, arc extinction and the like, and the existing various transformers are improved by using the transformer oil, so that the efficient utilization of equipment is realized. As the temperature of the equipment is increased during operation, the transformer oil is contacted with oxygen to generate insoluble colloid under the action of high temperature and an electric field, so that the insulating property of the transformer is reduced.
In order to solve the problem of insoluble colloid, an oil filter is adopted to filter the transformer oil. However, since the oil filter will continuously work in an outdoor environment, in order to ensure safe operation of the oil filter, a worker must watch beside the oil filter for a long time to prevent a series of faults such as oil leakage, and the whole oil filter has longer time and larger noise, and influences the health of the worker in a complex environment. Therefore, by changing the monitoring mode of the oil filter, the operation and maintenance cost is saved, and the improvement of the monitoring precision of the oil filter is very important.
Disclosure of Invention
The invention aims to provide a remote regulation and control system of a power transformer oil filter, so that the defect that a worker has to watch beside the oil filter for a long time when the oil filter filters transformer oil is overcome.
In order to achieve the above object, the present invention provides a remote control system of an oil filter of a power transformer, comprising: the system comprises a data acquisition module, a network hard disk video recorder, a video monitoring module, a PLC (programmable logic controller), an A/D (analog/digital) module, an alarm module, a communication module, a cloud end and a mobile end; the PLC is respectively connected with the data acquisition module, the network hard disk video recorder and the A/D module, the network hard disk video recorder is connected with the video monitoring module, the A/D module is connected with the communication module, the communication module is in wireless connection with the cloud, and the cloud is in wireless connection with the mobile terminal;
the data acquisition module is used for acquiring the vacuum degree, the heating temperature, the inlet and outlet flow, the valve opening, the liquid level and the pressure of the vacuum tank when the oil filter filters the oil of the power transformer;
the video monitoring module is used for monitoring three groups of video data, wherein the first data is an image of an operation control panel of the monitoring oil filter, the second data is an image of an oil outlet of the monitoring transformer and a half-frame of a high-voltage side of the transformer, and the third data is an image of an oil inlet of the monitoring transformer and a half-frame of a low-voltage side of the transformer;
the PLC is used for comparing the data of the data acquisition module with the data stored in the PLC, transmitting the data acquired by the data acquisition module and the video monitoring module to the cloud end when each parameter accords with a normal value, and simultaneously receiving an operation instruction transmitted by the cloud end to control and execute the oil filter;
the mobile terminal is used for checking the acquired oil filter data and video data through the cloud and sending an operation instruction to the oil filter.
Preferably, in the above technical scheme, the control console further comprises a control console, the control console comprises a relay control panel and a PLC control panel, the relay control panel is connected with the control end of the oil filter and the network hard disk video recorder, and the PLC control panel is connected with the PLC controller and is provided with a PLC interface.
Preferably, in the above technical solution, the network hard disk video recorder has a built-in 2T storage capacity.
Preferably, in the above technical solution, the data acquisition module is further configured to acquire internal parameters of the oil filter, fault information and an oil filter node map.
Preferably, in the above technical solution, the operation instruction sent by the mobile end to the oil filter includes a valve opening control instruction, an oil filter heating temperature instruction, and an inlet/outlet flow instruction.
Preferably, in the above technical solution, the pipeline valve of the oil filter is labeled.
Preferably, in the above technical scheme, an oil filter pipeline simplified diagram is arranged in the cloud, the oil filter pipeline simplified diagram is used for displaying the positions of the valves and page marks, and the mobile terminal is used for respectively controlling the opening degree of the valves of the oil filter pipeline through the page marks.
Preferably, in the above technical solution, when the PLC controller analyzes that each parameter of the oil filter deviates from a normal value, the PLC controller controls a corresponding regulator in the oil filter to perform a corresponding action, and detects the adjusted data and compares the data with the stored data in the PLC controller to determine whether the adjustment is successful, if the PLC controller determines that the adjustment is unsuccessful, the PLC controller continues to perform the adjustment, and simultaneously, the alarm module sends an alarm to the cloud through the communication module; if the adjustment of the regulator of the oil filter is successful, the communication module sends an alarm to the cloud, and meanwhile, the PLC controller sends adjustment information and fault point information to the cloud.
Preferably, in the above technical solution, the communication module has a SIM card built therein to transmit data to the cloud end by using a mobile transmission network.
Compared with the prior art, the invention has the following beneficial effects:
1. according to the remote regulation and control system of the power transformer oil filter, the PLC is used as a control core unit, data such as temperature, inlet and outlet flow, valve opening, pressure and the like of each node in the oil filter are collected by the data acquisition module and are transmitted to the PLC intelligent control system for data processing analysis, heating power, valve opening and oil filtering flow of each node of the oil filter are controlled according to analysis results, meanwhile, the collected data and feedback are transmitted to the cloud through the communication module, a worker can log in the cloud through a mobile phone, a notebook computer and other terminals to realize remote monitoring and operation of the oil filter, and when abnormality occurs, a warning signal is sent. The system can accurately measure various parameters of the oil filter, monitor the long-time working state and working environment of the oil filter, prevent potential threat and save manpower resources.
2. According to the invention, a fault processing program is introduced, when an abnormality occurs, the fault processing program can be communicated with a PLC control system, the PLC intelligent control system processes and analyzes the fault processing program, the automatic control oil filter is controlled to perform corresponding fault processing, automatic control is realized, damage caused when the system is unstable is automatically and timely handled, and fault processing information is uploaded to the cloud end to be checked in real time.
3. According to the invention, under the existing relay operation mode of the oil filter, a PLC automatic control mode is added, automatic control is realized by the PLC, on-site operation control is realized by the relay, and real-time control of an upper computer on the valve of the oil filter is realized. When the PLC control system fails, the relay can be used for realizing field control, and the priority of the relay control system is higher in two control modes.
4. According to the invention, 3 groups of video monitoring are arranged near the oil outlet and the oil inlet of the oil filter and used for monitoring the on-site working condition, and the video monitoring is transmitted to the cloud end through the base station network, so that a worker can check the operation of the oil filter through the mobile end in real time. When the built-in storage capacity of the NVR is filled, the newly-recorded video covers the earliest video, and the efficient utilization of resources is realized.
Drawings
Fig. 1 is a system architecture diagram of a remote control system of a power transformer oil filter of the present invention.
Fig. 2 is a view of a field control panel of the present invention.
Fig. 3 is a flow chart of PLC control according to the present invention.
Detailed Description
The following detailed description of embodiments of the invention is, therefore, to be taken in conjunction with the accompanying drawings, and it is to be understood that the scope of the invention is not limited to the specific embodiments.
As shown in fig. 1 and 2, the remote control system of the power transformer oil filter in this embodiment includes: the system comprises a data acquisition module, a network hard disk video recorder, a video monitoring module, a PLC (programmable logic controller), an A/D (analog/digital) module, an alarm module, a communication module, a cloud end and a mobile terminal. In this embodiment, a console is additionally provided, and the console includes a relay control panel and a PLC control panel, and the oil filter is controlled by the relay control mode and the PLC control mode together. The relay control panel is connected with the control end of the oil filter and the network hard disk video recorder, and the PLC control panel is connected with the PLC controller and is provided with a PLC interface. The PLC controller can be programmed on line through the PLC interface, the control program and the fault processing program of the PLC controller are optimized, the relay control panel directly operates the oil filter through buttons on the panel, and the priority of relay operation is higher than that of PLC control. The PLC control panel directly controls various valves, temperatures, pressures and the like in the oil filter by controlling the PLC controller. Therefore, the automatic control is realized by the PLC, and the on-site operation control is realized by the relay, so that the real-time control of the upper computer on the pipeline valve of the oil filter is realized.
With continued reference to fig. 1, 2 and 3, the PLC controller is respectively connected with the data acquisition module, the network hard disk video recorder and the a/D module, the network hard disk video recorder is connected with the video monitoring module, the a/D module is connected with the communication module, the communication module is wirelessly connected with the cloud, and the cloud is wirelessly connected with the mobile terminal. The data acquisition module is used for acquiring vacuum degree, heating temperature, inlet and outlet flow, liquid level and pressure of a vacuum tank, internal parameters, fault information of the oil filter and a node diagram of the oil filter when the oil filter filters oil of the power transformer, acquiring data such as temperature, pressure, inlet and outlet flow, valve opening degree and the like of the oil filter, transmitting output signals to the PLC controller for data processing and analysis through A/D conversion, comparing the output signals with data stored in the PLC controller, and transmitting real-time data to the cloud after the information processed by the PLC controller passes through the A/D module and the communication module when all the parameters meet normal values.
In addition, as shown in fig. 2 and fig. 3, a fault processing program is loaded into the PLC controller through the PLC interface, the fault processing program is a self-checking action program for handling the fault of the oil filter, and the fault processing capability is realized by using a preset program, for example, when at least 1 item of parameters of the oil filter deviate from a normal value, the fault processing program written into the PLC controller is triggered, the corresponding regulator in the oil filter is automatically controlled to make a corresponding action, the PLC controller detects the regulated data and compares the regulated data with the stored data in the PLC controller to judge whether the regulation is successful, if the PLC controller judges that the regulation is not successful, the regulation is continued, and meanwhile, an alarm module sends an alarm to the cloud through a communication module; if the regulator of the oil filter is successfully regulated, the whole system of the oil filter is recovered to be normal, an alarm is sent to the cloud by the communication module, and meanwhile, the PLC controller sends regulating information and fault point information to the cloud by the communication module.
The fault handling procedure comprises: and obtaining a difference value between the parameter deviating from the normal value and the parameter of the normal value, converting the difference value into a regulating instruction, and then sending the regulating instruction to a corresponding regulator in the oil filter, and regulating the regulating instruction by the regulator.
Further, as shown in fig. 2, the video monitoring module is configured to monitor three sets of video data, and the communication module transmits the data to the cloud by using a wireless network, so as to implement the whole monitoring process. The first data is an image of an operation control panel of the monitoring oil filter, the second data is an image of an oil outlet of the monitoring transformer and a half image of a high-voltage side of the transformer, the third data is an image of an oil inlet of the monitoring transformer and a half image of a low-voltage side of the transformer, the 3 groups of video monitoring modules are utilized to monitor the operation working environment of the oil filter, various data are transmitted to the cloud through the wireless communication module provided with the SIM card, and workers can realize the omnibearing control of the oil filter in a long distance. The network hard disk recorder (NVR) is internally provided with a 2T storage capacity, the video monitoring module uploads data to the cloud end, the NVR stores videos into the built-in hard disk, and when the built-in storage capacity of the NVR is filled, the newly-recorded videos cover the earliest videos, so that efficient utilization of resources is realized.
Still further, the mobile terminal is used for checking the collected oil filter data and video data through the cloud, checking the running environment of the oil filter through the video monitoring module, and the cloud video monitoring interface can simultaneously display 3 groups of video real-time information and can respectively display 1 group, 2 groups and 3 groups of video information according to page adjustment. The mobile terminal is also used for sending operation instructions to the oil filter through the cloud, wherein the operation instructions comprise a valve opening control instruction, an oil filter heating temperature instruction, an inlet and outlet flow instruction and the like, and further the valve opening, the oil filter heating temperature and the inlet and outlet flow are controlled, so that a worker can be connected into the cloud through mobile terminals such as mobile phones and notebook computers and send corresponding instructions to the PLC through a mobile network, and each node such as the valve opening degree, the temperature controller, the pressure controller and the inlet and outlet flow controller in the oil filter can be accurately controlled.
In addition, the pipeline valve of the oil filter is marked, and the opening degree of the valve is controlled according to the marked instruction. And the cloud end is internally provided with an oil filter pipeline simplified diagram which identifies the positions of the valves and page marks, and the mobile end respectively controls the opening degree of the valves of the oil filter pipeline through the page marks.
The communication module is internally provided with a SIM card, and information such as video data, parameters in the oil filter, parameters of the opening of the PLC control valve and the like is transmitted to the cloud by using a mobile transmission network.
The foregoing descriptions of specific exemplary embodiments of the present invention are presented for purposes of illustration and description. It is not intended to limit the invention to the precise form disclosed, and obviously many modifications and variations are possible in light of the above teaching. The exemplary embodiments were chosen and described in order to explain the specific principles of the invention and its practical application to thereby enable one skilled in the art to make and utilize the invention in various exemplary embodiments and with various modifications as are suited to the particular use contemplated. It is intended that the scope of the invention be defined by the claims and their equivalents.
Claims (7)
1. A remote control system for a power transformer oil filter, comprising: the system comprises a data acquisition module, a network hard disk video recorder, a video monitoring module, a PLC (programmable logic controller), an A/D (analog/digital) module, an alarm module, a communication module, a cloud end and a mobile end; the PLC is respectively connected with the data acquisition module, the network hard disk video recorder and the A/D module, the network hard disk video recorder is connected with the video monitoring module, the A/D module is connected with the communication module, the communication module is in wireless connection with the cloud, and the cloud is in wireless connection with the mobile terminal;
the data acquisition module is used for acquiring the vacuum degree, the heating temperature, the inlet and outlet flow, the valve opening, the liquid level and the pressure of the vacuum tank when the oil filter filters the oil of the power transformer;
the video monitoring module is used for monitoring three groups of video data, wherein the first data is an image of an operation control panel of the monitoring oil filter, the second data is an image of an oil outlet of the monitoring transformer and a half-frame of a high-voltage side of the transformer, and the third data is an image of an oil inlet of the monitoring transformer and a half-frame of a low-voltage side of the transformer;
the PLC is used for comparing the data of the data acquisition module with the data stored in the PLC, transmitting the data acquired by the data acquisition module and the video monitoring module to the cloud end when each parameter accords with a normal value, and simultaneously receiving an operation instruction transmitted by the cloud end to control and execute the oil filter;
the mobile terminal is used for checking the acquired oil filter data and video data through the cloud and sending an operation instruction to the oil filter;
the control console comprises a relay control panel and a PLC control panel, wherein the relay control panel is connected with the control end of the oil filter and the network hard disk video recorder, and the PLC control panel is connected with the PLC controller and is provided with a PLC interface;
when the PLC analyzes that various parameters of the oil filter deviate from normal values, corresponding regulators in the oil filter are controlled to make corresponding actions, the PLC detects and compares the regulated data with the stored data in the oil filter to judge whether the regulation is successful, if the PLC judges that the regulation is not successful, the regulation is continued, and meanwhile, an alarm is sent to the cloud by the alarm module through the communication module; if the adjustment of the regulator of the oil filter is successful, the communication module sends an alarm to the cloud, and meanwhile, the PLC controller sends adjustment information and fault point information to the cloud.
2. The remote control system of a power transformer oil filter according to claim 1, wherein the network hard disk video recorder has a built-in 2T storage capacity.
3. The remote control system of a power transformer oil filter according to claim 1, wherein the data acquisition module is further configured to acquire internal parameters of the oil filter, fault information, and an oil filter node map.
4. The remote control system of the power transformer oil filter according to claim 1, wherein the operation instructions sent by the mobile terminal to the oil filter include a control valve opening instruction, an oil filter heating temperature instruction and an inlet and outlet flow instruction.
5. The remote control system of a power transformer oil filter of claim 1, wherein the conduit valve of the oil filter is labeled.
6. The remote control system of the power transformer oil filter according to claim 5, wherein an oil filter pipeline simplified diagram is arranged in the cloud end, the oil filter pipeline simplified diagram identifies each valve position and page marks, and the mobile end respectively controls the opening degree of each oil filter pipeline valve through the page marks.
7. The remote control system of a power transformer oil filter according to claim 1, wherein the communication module incorporates a SIM card to transmit data to the cloud using a mobile transmission network.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910485140 | 2019-06-05 | ||
| CN2019104851405 | 2019-06-05 |
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| Publication Number | Publication Date |
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| CN111564899A CN111564899A (en) | 2020-08-21 |
| CN111564899B true CN111564899B (en) | 2023-09-01 |
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| CN202010280485.XA Active CN111564899B (en) | 2019-06-05 | 2020-04-10 | Remote regulation and control system of power transformer oil filter |
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| CN111564899A (en) | 2020-08-21 |
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