CN112910101B - Integrated monitoring system for power distribution transformer station - Google Patents
Integrated monitoring system for power distribution transformer station Download PDFInfo
- Publication number
- CN112910101B CN112910101B CN202110505230.3A CN202110505230A CN112910101B CN 112910101 B CN112910101 B CN 112910101B CN 202110505230 A CN202110505230 A CN 202110505230A CN 112910101 B CN112910101 B CN 112910101B
- Authority
- CN
- China
- Prior art keywords
- power distribution
- oil level
- gear
- acquisition
- monitoring system
- 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.)
- Active
Links
- 238000012544 monitoring process Methods 0.000 title claims abstract description 40
- 238000012423 maintenance Methods 0.000 claims abstract description 18
- 230000002159 abnormal effect Effects 0.000 claims abstract description 15
- 230000005856 abnormality Effects 0.000 claims description 12
- 230000005540 biological transmission Effects 0.000 claims description 8
- 230000004927 fusion Effects 0.000 claims description 7
- 238000004806 packaging method and process Methods 0.000 claims description 4
- 230000008859 change Effects 0.000 claims description 3
- 230000008447 perception Effects 0.000 abstract description 8
- 238000004891 communication Methods 0.000 description 6
- 238000010586 diagram Methods 0.000 description 6
- 230000006870 function Effects 0.000 description 5
- 238000010276 construction Methods 0.000 description 3
- 238000012545 processing Methods 0.000 description 3
- 239000000779 smoke Substances 0.000 description 3
- 230000009466 transformation Effects 0.000 description 3
- 238000006243 chemical reaction Methods 0.000 description 2
- QVFWZNCVPCJQOP-UHFFFAOYSA-N chloralodol Chemical compound CC(O)(C)CC(C)OC(O)C(Cl)(Cl)Cl QVFWZNCVPCJQOP-UHFFFAOYSA-N 0.000 description 2
- 230000003750 conditioning effect Effects 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 230000001960 triggered effect Effects 0.000 description 2
- 238000004804 winding Methods 0.000 description 2
- 230000002411 adverse Effects 0.000 description 1
- 238000004364 calculation method Methods 0.000 description 1
- 239000008358 core component Substances 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 238000007654 immersion Methods 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 239000004973 liquid crystal related substance Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 230000011664 signaling Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Images
Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J13/00—Circuit arrangements for providing remote indication of network conditions, e.g. an instantaneous record of the open or closed condition of each circuitbreaker in the network; Circuit arrangements for providing remote control of switching means in a power distribution network, e.g. switching in and out of current consumers by using a pulse code signal carried by the network
- H02J13/00006—Circuit arrangements for providing remote indication of network conditions, e.g. an instantaneous record of the open or closed condition of each circuitbreaker in the network; Circuit arrangements for providing remote control of switching means in a power distribution network, e.g. switching in and out of current consumers by using a pulse code signal carried by the network characterised by information or instructions transport means between the monitoring, controlling or managing units and monitored, controlled or operated power network element or electrical equipment
- H02J13/00022—Circuit arrangements for providing remote indication of network conditions, e.g. an instantaneous record of the open or closed condition of each circuitbreaker in the network; Circuit arrangements for providing remote control of switching means in a power distribution network, e.g. switching in and out of current consumers by using a pulse code signal carried by the network characterised by information or instructions transport means between the monitoring, controlling or managing units and monitored, controlled or operated power network element or electrical equipment using wireless data transmission
-
- 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
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
-
- 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
- Y04S10/00—Systems supporting electrical power generation, transmission or distribution
- Y04S10/16—Electric power substations
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Power Engineering (AREA)
- Remote Monitoring And Control Of Power-Distribution Networks (AREA)
Abstract
The invention discloses a power distribution transformer station integrated monitoring system which comprises a sensing layer, wherein the sensing layer comprises a gear sensing unit for acquiring running gear information of a power distribution transformer station and an oil level abnormity sensing unit for acquiring abnormal information of a running oil level of a power distribution transformer. Adopt gear sensing unit and oil level sensing unit to carry out the perception to gear state and the oil level state of distribution transformer platform, realized can carrying out real-time perception and digital collection to the electric quantity and the non-electric quantity signal of transformer platform, solve the running state and be difficult to the perception to can't realize the problem of the accurate fortune dimension of initiative maintenance.
Description
Technical Field
The invention belongs to the technical field of power distribution networks, and particularly relates to an integrated monitoring system for a power distribution transformer station.
Background
As a terminal device for supplying power to a user, an integrated power distribution substation formed by a power distribution transformer and its accessories is more and more approved by power supply companies due to its advantages of compact structure, convenient installation, and the like. Traditional integrated power distribution transformer platform monitoring only contains export voltage electric quantity such as electric current, and the running state is difficult to the perception to can't realize initiatively accurate fortune dimension and overhaul, complain the drive and salvage, with the condition of salvageing fortune dimension outstanding, reliably supply power and the orderly development of power supply company work has brought very adverse effect for the user.
Disclosure of Invention
In view of this, the invention provides an integrated monitoring system for a power distribution substation, and mainly aims to solve the problem that the operation state of the power distribution substation is difficult to sense, so that active accurate operation and maintenance cannot be realized.
The invention provides a power distribution transformer station integrated monitoring system which comprises a sensing layer, wherein the sensing layer comprises a gear sensing unit for acquiring running gear information of a power distribution transformer station and an oil level abnormity sensing unit for acquiring running oil level abnormity information of a power distribution transformer; wherein the gear sensing unit includes: the collecting chuck is embedded with a plurality of pairs of conductive semicircular rings, the conductive semicircular rings are arranged in a surrounding mode by taking the axis of the collecting chuck as an axis, and any pair of conductive semicircular rings is connected with a collecting terminal through at least two wires; the gear knob is movably connected with the acquisition chuck, so that the gear knob can rotate by taking the axis of the acquisition chuck as an axis, and one end of the gear knob, which is close to the conductive semicircular ring, is provided with a short contact head which can be contacted with the conductive semicircular ring so as to ensure that the conductive semicircular ring is in short circuit; the oil level abnormality sensing unit includes: an oil level float; the oil level indicator is rigidly connected with the oil level buoy through a connecting rod and is linked with the oil level buoy along with the position change of the oil level buoy; a short-circuit column connected with the acquisition circuit through a wire; and the elastic sheet is fixed on the fixing column, has an initial state far away from the short-circuit column, and is pressed down by the oil level pointer, and is in a short-circuit state in contact with the short-circuit column.
In some embodiments of the present invention, the power distribution substation integrated monitoring system further comprises: the acquisition layer is connected with the sensing layer and is used for receiving the data information acquired by the sensing layer and packaging and uploading the data information based on a data protocol; the network layer is connected with the acquisition layer and used for transmitting the data information or analyzing the data information to form an analysis result aiming at the running state of the power distribution substation and transmitting the analysis result; and the application layer is connected with the network layer and is used for receiving the data information or the analysis result, forming a station area state abnormal event based on the data information or the analysis result and pushing the station area state abnormal event to corresponding operation and maintenance staff.
In some embodiments of the present invention, the acquisition layer includes a data acquisition unit, and the data acquisition unit is respectively connected to the gear sensing unit and the oil level abnormality sensing unit, and receives distribution transformer operating gear information and distribution transformer operating oil level abnormality information.
In some embodiments of the invention, the data acquisition unit has an acquisition frequency of at least 1000 hz and an acquisition period of at least 1 minute.
In some embodiments of the present invention, the data acquisition unit includes an input module connected to the gear position sensing unit and the oil level abnormality sensing unit, respectively, a control module connected to the input module, and an output module connected to the control module.
In some embodiments of the present invention, the network layer includes a wireless transmission terminal connected to the data acquisition unit, and the wireless transmission terminal is configured to transmit data information.
In some embodiments of the present invention, the network layer includes an intelligent fusion terminal connected to the data acquisition unit, and the intelligent fusion terminal is configured to analyze data information to form an analysis result for an operation state of the power distribution substation and transmit the analysis result.
In some embodiments of the present invention, the short contact is fixedly connected to the shift knob through an elastic structure, and the short contact is movable in a vertical direction in the shift knob.
The power distribution transformer station integrated monitoring system adopts the gear sensing units and the oil level abnormal sensing units to sense the gear state and the oil level state of the power distribution transformer station, realizes real-time sensing and digital acquisition of the electric quantity and non-electric quantity signals of the transformer station, and solves the problem that the operation state is difficult to sense, so that active accurate operation and maintenance can not be realized.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on the drawings without creative efforts.
Fig. 1 is a structural diagram of a gear sensing unit of an integrated monitoring system of a power distribution substation according to an embodiment of the present invention;
fig. 2 is a structural diagram of an oil level abnormality sensing unit of an integrated monitoring system of a distribution substation according to an embodiment of the present invention;
fig. 3 is a block diagram of a data acquisition unit of an integrated monitoring system of a power distribution substation according to an embodiment of the present invention;
fig. 4 is a structural diagram of an integrated monitoring system of a power distribution substation according to an embodiment of the present invention;
fig. 5 is a work order correlation diagram of event states of a power distribution area of a power distribution substation integrated monitoring system according to an embodiment of the present invention.
Wherein the figures include the following reference numerals:
11. collecting a chuck; 12. a gear knob; 13. a short contact; 14. a conductive semi-circular ring; 21. an oil level float; 22. an oil level indicator; 23. fixing a column; 24. a spring plate; 25. and (4) short-circuiting the columns.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, 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 some, but not all, embodiments of the present invention. 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 to fig. 3, a structure diagram of each unit in a power distribution and transformation station integrated monitoring system according to the present application is shown, where the power distribution and transformation station integrated monitoring system includes a sensing layer, where the sensing layer includes a gear position sensing unit for acquiring information of operating gear positions of a power distribution and transformation station and an oil level abnormality sensing unit for acquiring information of operating oil level abnormality of a power distribution transformer; wherein the gear sensing unit includes: the acquisition chuck is embedded with a plurality of pairs of conductive semicircular rings, the conductive semicircular rings are arranged in a surrounding manner by taking the axis of the acquisition chuck as an axis, and any pair of conductive semicircular rings 14 is connected with an acquisition terminal through at least two wires; the gear knob 12 is arranged in the middle of the acquisition chuck 11, the gear knob 12 is movably connected with the acquisition chuck 11, so that the gear knob 12 can rotate by taking the axis of the acquisition chuck 11 as an axis, a short contact head 13 is arranged at one end, close to the conductive semicircular ring 14, of the gear knob 12, the short contact head 13 can be in contact with the conductive semicircular ring 14, and the conductive semicircular ring 14 is in short circuit; the oil level abnormality sensing unit includes: an oil level float 21; an oil level indicator 22 rigidly connected to the oil level buoy 21 by a link rod, such that the oil level indicator 22 is linked with the change in position of the oil level buoy 21; a short-circuit column 25 connected to the acquisition circuit through a wire; and an elastic piece 24 fixed on the fixed column 23, wherein the elastic piece 24 has an initial state far away from the short connection column 25, and a short connection state is formed by pressing the elastic piece 24 downwards through the oil level pointer 22, and the elastic piece 24 is in contact with the short connection column 25.
Use the technical scheme of this embodiment, set up many pairs of electrically conductive semicircle rings 14 of mutual insulation on the collection chuck 11, every pair of electrically conductive semicircle ring 14 corresponds a gear, a pair of electrically conductive semicircle ring 14 is connected to the collection terminal through high temperature resistant wire, form a pair of passive node, gear knob 12 and distribution transformer's gear swing arm rigid connection, contain short contact head 13 on the gear knob 12, when gear knob 12 rotates a certain gear, short contact head 13 contacts with electrically conductive semicircle ring 14 on the collection chuck 11, make this pair of electrically conductive semicircle ring 14 short circuit, thereby indicate this electrically conductive semicircle ring 14 to correspond the gear. In the implementation of the scheme, the gear knob 12 of the gear sensing unit replaces the original gear knob of the distribution transformer and is rigidly connected with the gear rotary rod of the distribution transformer, and the gear knob 12 is twisted while the gear rotary rod is driven to rotate to switch different gear windings inside the distribution transformer. The scheme is implemented to simply replace the non-core component of the original gear knob of the distribution transformer, and the installation of the gear sensing unit does not damage other structures of the distribution transformer, so that the transmission of the running gear information of the distribution transformer is realized under the condition that the structure of the transformer body is not changed.
The oil level indicator 22 is rigidly connected with the oil level buoy 21 through a connecting rod and is linked with the position of the oil level buoy 21, the short-circuit column 25 is connected with the acquisition circuit through a high-temperature-resistant lead to form a pair of passive nodes which contain open circuit and short circuit and are not provided with independent working power supplies, the passive nodes can be directly connected with the input of a conventional digital quantity acquisition device, and the acquisition device provides power to convert the power into high and low levels to realize the acquisition of two states of abnormal and normal oil level. When the oil level is normal, the elastic sheet 24 is not pressed by the oil level pointer 22, the short-circuit column 25 and the fixed column 23 are not conducted, and the passive node is in an open-circuit state and indicates that the oil level is normal; when the oil level is reduced to exceed the minimum limit value, the oil level buoy 21 is in gravity linkage with the oil level indicator 22 to press the elastic sheet 24 downwards, so that the short-circuit column 25 is mutually communicated with the fixed column 23 through the elastic sheet 24, and the passive node is in a short-circuit state and indicates that the oil level is abnormal.
To sum up, adopt gear sensing unit and the unusual sensing unit of oil level to carry out the perception to gear state and the oil level state of distribution transformer platform, realized can carrying out real-time perception and digital collection to the electric quantity and the non-electric quantity signal of transformer platform, solve the running state and be difficult to the perception to can't realize the problem of the accurate operation maintenance of initiative.
In some optional embodiments, the short contact is fixedly connected with the shift knob through an elastic structure, and the short contact can move in the shift knob along a vertical direction. Like this, fix in the inner wall of gear knob 12 through the one end of elastic construction, the other end and the part of elastic construction stretch into short contact head 13 fixed connection in gear knob 12, when making short contact head 13's lower terminal surface and gathering chuck 11 surface contact, short contact head 13 is in the state of contracting to gear knob 12, when short contact head 13 removed to electrically conductive semicircle ring 14 top, because elastic construction's elasticity, make short contact head 13 stretch out gear knob 12, contact with electrically conductive semicircle ring 14, thereby realized when gear knob 12 rotates, short contact head 13 can keep good contact with gathering chuck 11.
In some optional embodiments, the power distribution substation integrated monitoring system further includes: the acquisition layer is connected with the sensing layer and is used for receiving the data information acquired by the sensing layer and packaging and uploading the data information based on a data protocol; the network layer is connected with the acquisition layer and used for transmitting the data information or analyzing the data information to form an analysis result aiming at the running state of the power distribution substation and transmitting the analysis result; and the application layer is connected with the network layer and is used for receiving the data information or the analysis result, forming a station area state abnormal event based on the data information or the analysis result and pushing the station area state abnormal event to corresponding operation and maintenance staff.
Specifically, the acquisition layer includes the data acquisition unit, the data acquisition unit is connected with gear sensing unit, unusual sensing unit of oil level respectively to make and receive distribution transformer platform operation gear information and distribution transformer operation oil level abnormal information, wherein, the collection frequency of data acquisition unit is 1000 hertz at least, and the collection cycle is 1 minute at least.
In a specific embodiment, as shown in fig. 4, a structure of an integrated monitoring system of a distribution substation is shown, which includes:
(1) sensing layer
The sensing layer comprises various sensors and mutual inductors for sensing the running state and environment of the distribution transformer and the metering compensation cabinet in the low-voltage transformer area, and the sensors and mutual inductors for monitoring the transformers comprise an oil level sensor, an oil temperature sensor, an oil pressure sensor, a gear sensor, a high-low voltage pile head temperature sensor, a voltage mutual inductor and a current mutual inductor; the sensors and the mutual inductors for monitoring the running state of the metering compensation cabinet comprise an entrance guard travel sensor, a leakage current sensor and a breaker on-off state sensor; the environment perception sensor comprises an environment temperature sensor, an environment humidity sensor, a water immersion sensor and a smoke sensor.
(2) Acquisition layer
The acquisition layer mainly comprises an acquisition terminal, and as shown in fig. 3, the acquisition terminal mainly comprises a signal acquisition circuit, a signal conditioning circuit, an analog-to-digital conversion circuit, a DSP control core, a liquid crystal input and display module, a 485 communication module, a control circuit, an optical coupling circuit, a debugging interface, a 4G communication module and a LORA communication module. The acquisition terminal has the main functions of acquiring, conditioning and carrying out analog-to-digital conversion on signals of various sensors and mutual inductors, and packaging the acquired data according to a certain data protocol. Meanwhile, the acquisition layer has a certain data transmission function, and can upload acquired data to network layer equipment such as a fusion terminal or a concentrator through 485 communication, LORA communication or 4G communication so as to realize data concentration, forwarding and uploading.
The acquisition layer uploads acquired data in a real-time acquisition (acquisition frequency is 1000 Hz or more) timing uploading (acquisition period is 1 minute or more) mode, and has event-triggered full-parameter (namely all electric quantity and non-electric quantity data which can be acquired by the integrated monitoring system) wave recording and uploading functions, so that the deep analysis of fault reasons in the process and after the process is realized, and main trigger events are shown in the following table 1.
TABLE 1 trigger event List
(3) Network layer
The network layer is mainly a fusion terminal or a data transmission terminal, and uploads data packets of all the electric quantity and non-electric quantity acquisition terminals to the background master station or forms analysis results aiming at the running state of the power distribution transformer station after certain processing and analysis, and forms uploading data packets of early warning, warning and fault and uploads the data packets to the background master station.
(4) Application layer
The application layer is mainly a system background, and is used for forming a station area state abnormal event aiming at directly acquired data or an uploaded analysis result, pushing the abnormal event to a corresponding operation and maintenance maintainer, and driving active operation and maintenance in a work order mode.
The four levels are mainly divided by functions, and cross-level equipment may exist in practice, for example, the intelligent leakage protection switch can sense the on-off state of the switch and can form a data packet with the on-off state, and actually comprises a sensing layer and an acquisition layer.
Different application schemes and mode designs are adopted for different application levels of the power supply company, the distribution and sale company and enterprise users to the power distribution transformer station integrated monitoring system.
Aiming at the distribution and sales electric companies (the number of the distribution areas is less than one hundred) and enterprise users (the number of the distribution areas is less than ten), a concentrator or a wireless transmission terminal can be configured on the basis of the acquisition terminal, the acquired data are directly uploaded to a data background, the data background is used for summarizing, analyzing and processing, and relevant operation and maintenance staff are sent to the relevant operation and maintenance staff through a WEB server or a workstation.
To city and county level power supply company, the platform district quantity is more than ten thousand, can be on acquisition terminal basis, the configuration possesses certain marginal calculation and analysis function's fusion terminal, the platform becomes set of device monitor terminal, carry out state early warning, failure analysis and treatment scheme to acquisition layer data and formulate, upload distribution automation main website or power consumption information acquisition system after forming the analysis conclusion, then gather to data center such as platform in the data, dispatch to relevant fortune dimension maintainer under the mode such as collecting APP work order.
Aiming at different application levels of the power distribution transformer station integrated monitoring system and computing resources required by data processing of the power distribution transformer station integrated monitoring system, different application modes are adopted, so that the application requirements can be better met, computing tasks of all levels can be balanced, and the system configuration cost can be reduced.
In another specific embodiment, the distribution transformer station integrated monitoring system not only meets the conventional voltage, current, power and other electric quantity monitoring, but also newly adds 10 monitoring indexes such as transformer body state monitoring, low-voltage feeder line power failure events, low-voltage outlet leakage current and the like, 9 work orders are formed through analysis of an algorithm module, the main incidence relation among the monitoring indexes, events or states and the work orders is shown in fig. 5, the monitoring system firstly analyzes the monitoring indexes such as oil temperature, oil level and the like, judges whether a certain event occurs or is in a certain state according to a determined threshold value, and then generates a specific work order according to a combined trigger condition of the events or the states.
The power distribution transformer station integrated monitoring system forms work orders in a mode of event and state combined triggering, namely various events are formed by remote signaling acquisition amount exceeding limit, various states are formed by remote sensing acquisition amount, various accurate work orders are formed by the association combination of various events and states, and operation and maintenance staff are guided to carry out work.
The events, states and the time duration of the related work order triggering events are shown in the following tables 2 to 5, and mainly include the following contents:
TABLE 2 event name and definition
| Event name | Event definition |
| Out-of-limit event of oil temperature | Transformer oil temperature exceeds a limit value (the default limit value is 95℃) |
| Oil level out-of-limit event | Oil level of transformer lower than limit (default limit is 2cm above winding) |
| Out-of-limit oil pressure event | The pressure of the oil exceeding a limit (default limit 25kPa) |
| Voltage over-limit event | Any phase voltage at the low-voltage side exceeds a limit value (the default value is 235V) |
| Lower voltage limit event | Any phase voltage at the low-voltage side is lower than a limit value (the default value is 198V) |
| Three phase voltage imbalance event | The voltage difference value of any two phases at the low-voltage side exceeds the limit value (the default value is 15V) |
| Overload event | Any phase current on the low-voltage side exceeds the rated value |
| Lower power factor events | The total power factor of the three phases at the low-voltage side is more than 0 and less than 0.8 |
| Power factor over-limit event | Low voltage side three phase total powerFactor less than 0 |
| Leakage current out-of-limit event | The leakage current of any phase at the low-voltage side is higher than the limit value (the default value is 300mA) |
| Leakage protection switch opening event | The state of the leakage protection switch is changed from an on position (1) to an off position (0) |
| Fuse drop event | The state of fuse changing from closed (1) to open (0) |
| Ambient temperature out-of-limit event | Ambient temperature exceeding a limit (default 45 degree C) |
| Ambient humidity out-of-limit event | Ambient humidity exceeds a limit (85% by default) |
| Smoke concentration off-limit event | The smoke concentration exceeds a limit value |
TABLE 3 State names and definitions
| Status name | State definition |
| Gear state | At presentThe state of the gear (default values are 1, 2, 3, 4 and 5 gears respectively) |
| Oil level condition | The current oil level (Normal and Low, respectively, as a default) |
| Fuse state | Current operation of the high-voltage fuse (Normal, Fall, respectively, as default) |
TABLE 4 Intelligent Algorithm trigger name and Definitions
TABLE 5 event and State triggered work orders and Definitions
The related work orders can be pre-warned/directly sent to corresponding equipment owners through a data background workstation or a mobile phone APP, and active and accurate operation and maintenance are achieved.
Compared with the traditional mechanism of forming a work order by a single event, the work order triggering mode of the event + state effectively enriches the judgment condition of the running condition of the distribution transformer, positions the reasons or the positions of the abnormal events or the abnormal states, can provide an accurate maintenance strategy for maintenance personnel, prepares for fault anticipation and maintenance tools and materials before maintenance, and greatly improves the maintenance efficiency.
Finally, it should be noted that: the above examples are only intended to illustrate the technical solution of the present invention, but not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.
Claims (8)
1. The integrated monitoring system for the power distribution transformer station comprises a sensing layer and is characterized in that the sensing layer comprises a gear sensing unit for acquiring running gear information of the power distribution transformer station and an oil level abnormity sensing unit for acquiring running oil level abnormity information of a power distribution transformer;
wherein the gear sensing unit includes:
the collecting chuck is embedded with a plurality of pairs of conductive semicircular rings, the conductive semicircular rings are arranged in a surrounding mode by taking the axis of the collecting chuck as an axis, and any pair of conductive semicircular rings is connected with a collecting terminal through at least two wires; and
the gear knob is arranged in the middle of the acquisition chuck and is movably connected with the acquisition chuck, so that the gear knob can rotate by taking the axis of the acquisition chuck as an axis, and one end of the gear knob, which is close to the conductive semicircular ring, is provided with a short contact head which can be contacted with the conductive semicircular ring so as to enable the conductive semicircular ring to be in short circuit;
the oil level abnormality sensing unit includes:
an oil level float;
the oil level indicator is rigidly connected with the oil level buoy through a connecting rod and is linked with the oil level buoy along with the position change of the oil level buoy;
a short-circuit column connected with the acquisition circuit through a wire; and
the elastic sheet is fixed on the fixing column and has an initial state far away from the short-circuit column, and the short-circuit state that the elastic sheet is pressed down through the oil level pointer and is in contact with the short-circuit column is achieved.
2. The integrated monitoring system for power distribution substations as claimed in claim 1, further comprising:
the acquisition layer is connected with the sensing layer and is used for receiving the data information acquired by the sensing layer and packaging and uploading the data information based on a data protocol;
the network layer is connected with the acquisition layer and used for transmitting the data information or analyzing the data information to form an analysis result aiming at the running state of the power distribution substation and transmitting the analysis result; and
and the application layer is connected with the network layer and is used for receiving the data information or the analysis result, forming a station area state abnormal event based on the data information or the analysis result and pushing the station area state abnormal event to corresponding operation and maintenance staff.
3. The integrated monitoring system for the power distribution transformer station as claimed in claim 2, wherein the acquisition layer comprises a data acquisition unit, and the data acquisition unit is respectively connected with the gear sensing unit and the oil level abnormality sensing unit and receives the power distribution transformer station operation gear information and the power distribution transformer operation oil level abnormality information.
4. The integrated monitoring system of claim 3, wherein the data acquisition unit has an acquisition frequency of at least 1000 Hz and an acquisition period of at least 1 minute.
5. The integrated monitoring system for the power distribution transformer station as claimed in claim 3, wherein the data acquisition unit comprises an input module connected to the gear position sensing unit and the oil level abnormality sensing unit, a control module connected to the input module, and an output module connected to the control module.
6. The integrated monitoring system for the power distribution substation as claimed in claim 3, wherein the network layer comprises a wireless transmission terminal connected to the data acquisition unit, and the wireless transmission terminal is configured to transmit data information.
7. The integrated monitoring system for the power distribution substation as claimed in claim 3, wherein the network layer comprises a smart fusion terminal connected to the data acquisition unit, the smart fusion terminal is configured to analyze the data information to form an analysis result for the operation status of the power distribution substation and transmit the analysis result.
8. The integrated monitoring system for power distribution substations as claimed in claim 1, wherein the short contact is fixedly connected to the shift knob via a resilient structure, the short contact being vertically movable in the shift knob.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110505230.3A CN112910101B (en) | 2021-05-10 | 2021-05-10 | Integrated monitoring system for power distribution transformer station |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110505230.3A CN112910101B (en) | 2021-05-10 | 2021-05-10 | Integrated monitoring system for power distribution transformer station |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN112910101A CN112910101A (en) | 2021-06-04 |
| CN112910101B true CN112910101B (en) | 2021-09-10 |
Family
ID=76109042
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110505230.3A Active CN112910101B (en) | 2021-05-10 | 2021-05-10 | Integrated monitoring system for power distribution transformer station |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112910101B (en) |
Citations (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102097863A (en) * | 2011-01-12 | 2011-06-15 | 天津工业大学 | Monitoring equipment of intelligent transformer |
| CN202150740U (en) * | 2011-08-02 | 2012-02-22 | 珠海博威电气有限公司 | Intelligent monitoring system for distribution transformer platform area |
| CN102437649A (en) * | 2011-12-23 | 2012-05-02 | 刘文富 | Intelligent on-site monitoring system for large-scale transformer |
| CN102981084A (en) * | 2012-12-07 | 2013-03-20 | 深圳市双合电气股份有限公司 | Comprehensive monitoring system for electric power system transformers |
| CN103325531A (en) * | 2013-06-27 | 2013-09-25 | 甘肃省电力公司检修公司 | Intelligent oil level indicating device |
| CN104316807A (en) * | 2014-11-14 | 2015-01-28 | 山东电力设备有限公司 | Intelligent transformer joint debugging testing arrangement structure |
| CN204290489U (en) * | 2014-11-28 | 2015-04-22 | 云南电网公司普洱供电局 | A kind of distribution transformer running status sensory perceptual system |
| CN105846545A (en) * | 2016-03-29 | 2016-08-10 | 国网江西省电力科学研究院 | Active dynamic compensation device and distribution transformer integrated monitoring method |
| CN106505733A (en) * | 2016-11-14 | 2017-03-15 | 国网山东省电力公司东营供电公司 | Power distribution automation monitoring platform |
| CN206628356U (en) * | 2017-03-30 | 2017-11-10 | 江门市赛为电力科技有限公司 | A kind of intelligent transformer |
| CN110707810A (en) * | 2019-09-20 | 2020-01-17 | 云南恒协科技有限公司 | Auxiliary comprehensive monitoring system for transformer substation |
| CN110784017A (en) * | 2019-10-31 | 2020-02-11 | 国网山东省电力公司东营供电公司 | Intelligent detection device and method for distribution transformer based on real-time data acquisition |
| CN211930342U (en) * | 2020-04-13 | 2020-11-13 | 武汉恒力丰科技有限公司 | Remote inspection device for transformer substation |
| CN212304872U (en) * | 2020-05-09 | 2021-01-05 | 安徽海螺水泥股份有限公司 | Intelligent power distribution monitoring and operation and maintenance system |
| CN212781180U (en) * | 2020-07-23 | 2021-03-23 | 国家电网有限公司 | Power grid distribution transformer running state on-line monitoring device |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US10958101B2 (en) * | 2018-06-01 | 2021-03-23 | Siemens Industry, Inc. | Methods and apparatus incorporating topology error estimation for management of an electric power system |
-
2021
- 2021-05-10 CN CN202110505230.3A patent/CN112910101B/en active Active
Patent Citations (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102097863A (en) * | 2011-01-12 | 2011-06-15 | 天津工业大学 | Monitoring equipment of intelligent transformer |
| CN202150740U (en) * | 2011-08-02 | 2012-02-22 | 珠海博威电气有限公司 | Intelligent monitoring system for distribution transformer platform area |
| CN102437649A (en) * | 2011-12-23 | 2012-05-02 | 刘文富 | Intelligent on-site monitoring system for large-scale transformer |
| CN102981084A (en) * | 2012-12-07 | 2013-03-20 | 深圳市双合电气股份有限公司 | Comprehensive monitoring system for electric power system transformers |
| CN103325531A (en) * | 2013-06-27 | 2013-09-25 | 甘肃省电力公司检修公司 | Intelligent oil level indicating device |
| CN104316807A (en) * | 2014-11-14 | 2015-01-28 | 山东电力设备有限公司 | Intelligent transformer joint debugging testing arrangement structure |
| CN204290489U (en) * | 2014-11-28 | 2015-04-22 | 云南电网公司普洱供电局 | A kind of distribution transformer running status sensory perceptual system |
| CN105846545A (en) * | 2016-03-29 | 2016-08-10 | 国网江西省电力科学研究院 | Active dynamic compensation device and distribution transformer integrated monitoring method |
| CN106505733A (en) * | 2016-11-14 | 2017-03-15 | 国网山东省电力公司东营供电公司 | Power distribution automation monitoring platform |
| CN206628356U (en) * | 2017-03-30 | 2017-11-10 | 江门市赛为电力科技有限公司 | A kind of intelligent transformer |
| CN110707810A (en) * | 2019-09-20 | 2020-01-17 | 云南恒协科技有限公司 | Auxiliary comprehensive monitoring system for transformer substation |
| CN110784017A (en) * | 2019-10-31 | 2020-02-11 | 国网山东省电力公司东营供电公司 | Intelligent detection device and method for distribution transformer based on real-time data acquisition |
| CN211930342U (en) * | 2020-04-13 | 2020-11-13 | 武汉恒力丰科技有限公司 | Remote inspection device for transformer substation |
| CN212304872U (en) * | 2020-05-09 | 2021-01-05 | 安徽海螺水泥股份有限公司 | Intelligent power distribution monitoring and operation and maintenance system |
| CN212781180U (en) * | 2020-07-23 | 2021-03-23 | 国家电网有限公司 | Power grid distribution transformer running state on-line monitoring device |
Non-Patent Citations (2)
| Title |
|---|
| Design of Power Transformer Fault Diagnosis Model Based on Support Vector Machine;Tao Liu;Zhijie Wang;《2009 International Symposium on Intelligent Ubiquitous Computing and Education》;20091231;全文 * |
| 基于数据驱动的配电变压器容量在线校正方法;安义 等;《高电压技术》;20181210;全文 * |
Also Published As
| Publication number | Publication date |
|---|---|
| CN112910101A (en) | 2021-06-04 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN109617240A (en) | A kind of power consumer switchgear house operational system | |
| WO2021217695A1 (en) | Smart data collection and sorting system for smart factory framework-based power supply and distribution grid | |
| CN101651364B (en) | Remote automation control high-voltage measurement comprehensive distribution equipment | |
| CN103217566A (en) | Current online monitoring integrated system of on-load tap changer | |
| CN212012259U (en) | Low-voltage distribution network state monitoring system with intelligent distribution transformer terminal | |
| CN209267271U (en) | A kind of electrical power distribution automatization system | |
| CN207317864U (en) | Distribution Intellectualized monitoring management system | |
| CN113410910A (en) | Power distribution station monitoring system and monitoring method based on intelligent fusion terminal | |
| CN102832714A (en) | Intelligent box-type substation | |
| CN104166061A (en) | Intelligent power distribution and utilization state detection device based on 4D technology | |
| CN113013993A (en) | Digital primary and secondary fusion ring net cage complete system | |
| CN112910101B (en) | Integrated monitoring system for power distribution transformer station | |
| CN203164360U (en) | Transformer device insulation online monitoring system | |
| CN102130505A (en) | High-voltage switch controller with metering function | |
| CN209927942U (en) | Intelligent online monitoring instrument for lightning arrester of power transmission line based on wireless communication | |
| CN202759292U (en) | An intelligent box-type transformer station | |
| CN102790427A (en) | Electric monitoring and management system for intelligent distribution network | |
| CN105467197A (en) | Online monitoring device of integrated lightning arrester | |
| CN202009265U (en) | High-voltage switch controller with metering function | |
| CN114243930A (en) | Circuit breaker monitoring device and monitoring system | |
| CN108233990A (en) | A kind of binary channels bandwidth carrier collector based on dual-active framework | |
| CN210927110U (en) | Intelligent measurement and control device based on new energy power station | |
| CN202997531U (en) | Traditional intelligent integrated portable over-current protection device | |
| CN210981396U (en) | Irrigation pumping station flow monitoring system based on NB-IoT | |
| CN206725688U (en) | A kind of intelligent substation transformer synthesis IED |
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 | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |