CN112462173A - Intelligent management system for dry-type transformer - Google Patents
Intelligent management system for dry-type transformer Download PDFInfo
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- CN112462173A CN112462173A CN202011256320.5A CN202011256320A CN112462173A CN 112462173 A CN112462173 A CN 112462173A CN 202011256320 A CN202011256320 A CN 202011256320A CN 112462173 A CN112462173 A CN 112462173A
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- 238000004891 communication Methods 0.000 claims abstract description 63
- 238000001514 detection method Methods 0.000 claims abstract description 39
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 9
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 9
- 229910052802 copper Inorganic materials 0.000 claims description 9
- 239000010949 copper Substances 0.000 claims description 9
- 229910000831 Steel Inorganic materials 0.000 claims description 3
- 239000010959 steel Substances 0.000 claims description 3
- 238000012544 monitoring process Methods 0.000 abstract description 10
- 238000012800 visualization Methods 0.000 abstract description 4
- 238000010586 diagram Methods 0.000 description 9
- 238000012423 maintenance Methods 0.000 description 5
- 238000004804 winding Methods 0.000 description 4
- 238000001816 cooling Methods 0.000 description 3
- 230000017525 heat dissipation Effects 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 238000012545 processing Methods 0.000 description 3
- 230000002159 abnormal effect Effects 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 238000011161 development Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 206010063385 Intellectualisation Diseases 0.000 description 1
- 238000013473 artificial intelligence Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000009529 body temperature measurement Methods 0.000 description 1
- 230000005674 electromagnetic induction Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000004927 fusion Effects 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 230000007935 neutral effect Effects 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 239000000523 sample Substances 0.000 description 1
- 230000011664 signaling Effects 0.000 description 1
- 238000004088 simulation Methods 0.000 description 1
- 238000007619 statistical method Methods 0.000 description 1
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01K—MEASURING TEMPERATURE; MEASURING QUANTITY OF HEAT; THERMALLY-SENSITIVE ELEMENTS NOT OTHERWISE PROVIDED FOR
- G01K7/00—Measuring temperature based on the use of electric or magnetic elements directly sensitive to heat ; Power supply therefor, e.g. using thermoelectric elements
- G01K7/16—Measuring temperature based on the use of electric or magnetic elements directly sensitive to heat ; Power supply therefor, e.g. using thermoelectric elements using resistive elements
- G01K7/18—Measuring temperature based on the use of electric or magnetic elements directly sensitive to heat ; Power supply therefor, e.g. using thermoelectric elements using resistive elements the element being a linear resistance, e.g. platinum resistance thermometer
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- G—PHYSICS
- G08—SIGNALLING
- G08C—TRANSMISSION SYSTEMS FOR MEASURED VALUES, CONTROL OR SIMILAR SIGNALS
- G08C17/00—Arrangements for transmitting signals characterised by the use of a wireless electrical link
- G08C17/02—Arrangements for transmitting signals characterised by the use of a wireless electrical link using a radio link
Abstract
The invention discloses an intelligent management system for a dry-type transformer, which comprises: the control module is respectively in communication connection with the acquisition module, the display module and the communication module, and the power supply module is respectively in electric connection with the control module, the display module and the communication module; the acquisition module comprises a plurality of sensor units arranged on the dry-type transformer and is used for acquiring detection data of the dry-type transformer; the control module acquires detection data, judges the detection data according to a pre-stored detection data threshold value, sends out an alarm signal when the detection data value exceeds the limit, and transmits the alarm signal to the remote server through the communication module; and the display module receives the detection data transmitted by the control module. The operation state of the dry-type transformer is detected in real time, the detection data is analyzed and processed to obtain the electric quantity data and the start-stop control state data of the dry-type transformer, whether the data exceeds the limit is judged, and an alarm signal is sent out, so that the monitoring level of the operation state of the dry-type transformer is improved, and the visualization of the detection data is realized.
Description
Technical Field
The invention relates to the technical field of power equipment control, in particular to an intelligent management system for a dry-type transformer.
Background
The intelligent transformer is the core equipment of the intelligent power grid, and the construction of the intelligent power grid in China can be promoted just because the technology of the intelligent transformer is continuously improved. The development direction of the intelligent power grid is the fusion of a primary system and a secondary system, the pursuit functional targets are intellectualization and self-adaptation, and the pursuit economic targets are the lowest comprehensive construction cost and the lowest operation and maintenance cost. With the promotion of the internet of things of the national network and the development of artificial intelligence, the intelligent transformer becomes one of the future research directions, and the market demand is increasing day by day.
In the prior art, a transformer body, a three-phase current transformer, an iron core grounding current transformer, a neutral point current transformer, a temperature and humidity sensor, a processor and a local discharge ultrahigh frequency probe are arranged in a transformer shell, and data collected by the sensors can monitor the running condition of the transformer in real time through the processor. The prior art scheme is only simple to monitor and analyze voltage, current and temperature data, and meanwhile node temperature measurement, wireless communication, energy efficiency analysis, transformer service life assessment, APP application, a background operation and maintenance monitoring system and the like are lacked.
Meanwhile, the transformer has the following problems: firstly, the dry-type transformer belongs to a monitoring blind area in a power supply system, signals of the running state of the transformer, such as current and voltage, power, winding temperature and the like, cannot be uploaded to a background for monitoring, a user cannot master the running state of the transformer, the transformer cannot be powered off and overhauled in time when running is abnormal, and equipment damage or accident expansion occurs in long-term running; secondly, due to the complex operation environment of the transformer, the traditional temperature controller can only control the starting and stopping of the fan, and can not carry out statistical analysis on the operation state of the transformer due to high-temperature early warning, and can not effectively predict the service life of the transformer; thirdly, the dry-type transformer is mostly installed in places with limited space such as factories, buildings or basements, operation and maintenance personnel mostly do not exist, once equipment fails, the operation and maintenance personnel often cannot acquire failure information in time, and the failure phenomenon can be discovered from superior protection equipment after an accident occurs or is enlarged, so that the extensive management cannot meet the requirement of the current power load on high reliability of power supply; and fourthly, the transformer has various loads, the phenomenon of three-phase imbalance can occur in the operation, economic data such as transformer energy loss and the like cannot be calculated due to the absence of transformer operation data, and customers cannot adjust the load rate of the transformer in real time in an economic operation mode to operate in the most available mode.
Disclosure of Invention
The embodiment of the invention aims to provide an intelligent management system for a dry-type transformer, which is used for acquiring electric quantity data and start-stop control state data of the dry-type transformer by detecting the running state of the dry-type transformer in real time and analyzing and processing the detection data, judging whether the data is out of limit and sending out an alarm signal, so that the monitoring level of the running state of the dry-type transformer is improved, the running stability of the dry-type transformer is improved, and the visualization of the data is realized.
In order to solve the above technical problem, an embodiment of the present invention provides an intelligent management system for a dry-type transformer, for managing the dry-type transformer, including: the device comprises an acquisition module, a control module, a display module, a power supply module and a communication module;
the control module is respectively in communication connection with the acquisition module, the display module and the communication module, and the power supply module is respectively in electric connection with the control module, the display module and the communication module;
the acquisition module comprises a plurality of sensor units arranged on the dry-type transformer and is used for acquiring detection data of the dry-type transformer;
the control module acquires the detection data, judges the detection data according to a pre-stored detection data threshold value, sends out an alarm signal when the detection data value exceeds the limit, and transmits the alarm signal to a remote server through the communication module;
and the display module receives the detection data transmitted by the control module.
Further, the sensor unit includes: the temperature sensor comprises a first temperature sensor, a second temperature sensor, a third temperature sensor, a first current transformer and/or a second temperature transformer;
the first temperature sensor is arranged on a low-voltage coil of the dry-type transformer;
the second temperature sensors are respectively arranged at the a-phase copper bar, the b-phase copper bar, the c-phase copper bar and the n-phase copper bar of the dry-type transformer;
the third temperature sensor is arranged on the upper surface of the iron core of the dry-type transformer;
the first current transformers are disposed at the a-phase, b-phase and c-phase of the dry type transformer to measure three-phase current values of the dry type transformer;
the second current transformer is arranged at the n-phase position of the dry-type transformer to measure the zero sequence current value of the dry-type transformer.
Furthermore, the second temperature sensor exchanges data with the control module in a wireless communication mode.
Further, the intelligent management system for the dry-type transformer further comprises: a fan;
the fan is arranged on a base channel steel of the dry-type transformer;
the fan is electrically connected with the control module and receives a control instruction of the control module.
Further, the fan carries out data exchange with control module through RS485 communication interface.
Further, the control module acquires data detection of high-low voltage phase voltage, phase current, zero sequence current, three-phase voltage harmonic component, power factor and/or three-phase unbalance of the dry-type transformer through the plurality of sensor units.
Further, the control module can obtain a three-phase imbalance rate according to the detection data, and when the three-phase imbalance rate exceeds a preset value, an alarm signal is sent to the remote server through the communication module.
Further, the first temperature sensor and/or the third temperature sensor is a PT100 temperature sensor.
Further, the communication module includes: the system comprises a GPRS mobile data communication interface, a WIFI wireless communication interface, an RS485 serial communication interface and/or an Ethernet communication interface.
Further, the communication module can carry out data communication with the remote server through a DL/T667-1999(IEC-60870-5-103) communication protocol or a Modbus communication protocol.
The technical scheme of the embodiment of the invention has the following beneficial technical effects:
the running state of the dry-type transformer is detected in real time, the detection data are analyzed and processed to obtain the electric quantity data and the start-stop control state data of the dry-type transformer, whether the data are out of limit is judged, and an alarm signal is sent out, so that the monitoring level of the running state of the dry-type transformer is improved, the running stability of the dry-type transformer is improved, and the visualization of the data is realized.
Drawings
Fig. 1 is a schematic diagram of an intelligent management system for a dry-type transformer according to an embodiment of the present invention;
FIG. 2 is a schematic diagram of an acquisition module and a fan arrangement according to an embodiment of the present invention;
fig. 3 is a logic diagram of the heat dissipation of the dry type transformer in the embodiment of the present invention;
FIG. 4 is a logic diagram of a transformer high temperature alarm provided by an embodiment of the present invention;
fig. 5 is a logic diagram of ultra-high temperature trip of the transformer according to the embodiment of the invention.
Reference numerals:
1. the system comprises an acquisition module, 11, a first temperature sensor, 12, a second temperature sensor, 13, a third temperature sensor, 14, a first current transformer, 15, a second temperature transformer, 2, a control module, 3, a display module, 4, a power module, 5, a communication module, 6 and a fan.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention will be described in further detail with reference to the accompanying drawings in conjunction with the following detailed description. It should be understood that the description is intended to be exemplary only, and is not intended to limit the scope of the present invention. Moreover, in the following description, descriptions of well-known structures and techniques are omitted so as to not unnecessarily obscure the concepts of the present invention.
Fig. 1 is a schematic diagram of a dry-type transformer intelligent management system according to an embodiment of the present invention.
Referring to fig. 1, an embodiment of the present invention provides an intelligent management system for a dry-type transformer, for managing the dry-type transformer, including: the device comprises an acquisition module 1, a control module 2, a display module 3, a power module 4 and a communication module 5; the control module 2 is respectively in communication connection with the acquisition module 1, the display module 3 and the communication module 5, and the power supply module 4 is respectively in electric connection with the control module 2, the display module 3 and the communication module 5; the acquisition module 1 comprises a plurality of sensor units arranged on the dry-type transformer and is used for acquiring detection data of the dry-type transformer; the control module 2 acquires the detection data, judges the detection data according to a pre-stored detection data threshold value, sends out an alarm signal when the detection data value exceeds the limit, and transmits the alarm signal to the remote server through the communication module 5.
The dry-type transformer in the embodiment of the invention is a dry-type transformer of 35kV or below, and is a device for transmitting electric energy from one circuit to another circuit by utilizing the principle of electromagnetic induction.
In a particular implementation of an embodiment of the invention, a sensor unit comprises: a first temperature sensor 11, a second temperature sensor 12, a third temperature sensor 13, a first current transformer 14 and/or a second temperature transformer.
First temperature sensor 11 sets up on dry-type transformer's low-voltage coil for gather the temperature that low-voltage coil preset the position, reachs the highest position of low-voltage coil temperature through thermal simulation, so leave the insulating hole in this department at the pouring process, be used for placing PT100 temperature sensor, can accurate measurement coil inside temperature, upload to control module 2, make the judgement.
The second temperature sensors 12 are respectively disposed at the a-phase, b-phase, c-phase and n-phase copper bars of the dry-type transformer, and are configured to measure the temperature of the high-low side connection terminal, and upload the temperature to the controller in a wireless communication manner to make a decision.
The third temperature sensor 13 is arranged on the upper surface of the iron core of the dry-type transformer, and is used for collecting the temperature of the iron core, monitoring the temperature of the iron core in real time, uploading the temperature to the control module 2, making a decision, and starting the fan 6 when the temperature exceeds a limit value.
The first current transformer 14 is provided at the a-phase, b-phase, and c-phase of the dry type transformer to measure the three-phase current value of the dry type transformer.
The second current transformer 15 is disposed at the n-phase of the dry type transformer to measure a zero sequence current value of the dry type transformer.
Specifically, the second temperature sensor 12 exchanges data with the control module 2 in a wireless communication manner.
In addition, dry-type transformer intelligent management system still includes: a fan 6; the fan 6 is arranged on a base channel steel of the dry-type transformer; the fan 6 is electrically connected with the control module 2 and receives a control instruction of the control module 2.
Further, the fan 6 exchanges data with the control module 2 through an RS485 communication interface.
Specifically, the control module 2 acquires data of high-low voltage phase voltage, phase current, zero sequence current, three-phase voltage harmonic component, power factor and/or three-phase unbalance of the dry-type transformer through a plurality of sensor units.
In addition, the control module 2 can obtain the three-phase imbalance rate according to the detection data, and when the three-phase imbalance rate exceeds a preset value, an alarm signal is sent to the remote server through the communication module 5.
Specifically, the control module 2 can perform algorithm processing on collected data of each path of voltage, current, temperature and humidity and the like, and can realize monitoring of high-voltage and low-voltage phase voltage, phase current, zero-sequence current, three-phase voltage harmonic component, power factor and three-phase unbalanced electric quantity in the running process of the transformer; monitoring the running environment of the transformer, the state of a cabinet door, the state of an in-out line switch cabinet and the start-stop control state of heat dissipation and humidity control equipment; the fault pre-judgment and processing can realize voltage and current out-of-limit alarm, temperature alarm, environment temperature and humidity alarm and accessory fault alarm. The control module 2 can alarm the out-of-limit current of the high-low voltage side and inform a remote server; the temperature of the low-voltage coil, the iron core and the high-low voltage side wiring terminals is alarmed, the fan 6 is started to cool after the temperature exceeds a specified value, and the fan 6 is closed when the temperature is lower than the specified value; according to the collected data, the three-phase unbalance rate condition can be analyzed, the information is uploaded to a background when the three-phase unbalance rate condition is abnormal, operation and maintenance personnel are reminded to adjust the load, and the three-phase unbalance rate is reduced so as to protect the transformer.
Optionally, the first temperature sensor 11 and/or the third temperature sensor 13 are PT100 temperature sensors.
Specifically, the communication module 5 includes: the system comprises a GPRS mobile data communication interface, a WIFI wireless communication interface, an RS485 serial communication interface and/or an Ethernet communication interface.
Specifically, the communication module 5 can perform data communication with a remote server through a DL/T667-1999(IEC-60870-5-103) communication protocol or a Modbus communication protocol.
Fig. 3 is a logic diagram of the heat dissipation during the startup of the dry-type transformer according to the embodiment of the present invention.
Referring to fig. 3, when any one of the temperatures of the winding and the core of the phase a, the phase B, and the phase C of the transformer body exceeds the start-up setting value of the fan 6, the fan 6 of the transformer body is started up to achieve the cooling purpose, and remote signaling is performed.
Fig. 4 is a logic diagram of a transformer high temperature alarm provided in the embodiment of the present invention.
Referring to fig. 4, when any one of the a-phase, B-phase, C-phase windings and the iron core temperature of the transformer body exceeds the high-temperature fixed value of the body and the high-temperature pressing plate is put into use, the device starts the fan 6 of the transformer body to achieve the cooling purpose, and simultaneously, the alarm signal display and the alarm signal relay are closed and remotely signaled, and the device performs the high-temperature signal display and remote transmission.
Fig. 5 is a logic diagram of ultra-high temperature trip of the transformer according to the embodiment of the invention.
Referring to fig. 5, when any one of the temperatures of the winding of the phase a, the phase B and the phase C of the transformer body and the iron core exceeds the body ultra-high temperature set value and the ultra-high temperature pressure plate is put into operation, the fan 6 of the transformer body is started to achieve the cooling purpose, and simultaneously, the trip signal display and the trip signal relay are closed and remotely signaled, and the device displays and remotely signals the ultra-high temperature.
The embodiment of the invention aims to protect an intelligent management system of a dry-type transformer, which is used for managing the dry-type transformer and comprises the following components: the device comprises an acquisition module, a control module, a display module, a power supply module and a communication module; the control module is respectively in communication connection with the acquisition module, the display module and the communication module, and the power supply module is respectively in electric connection with the control module, the display module and the communication module; the acquisition module comprises a plurality of sensor units arranged on the dry-type transformer and is used for acquiring detection data of the dry-type transformer; the control module acquires detection data, judges the detection data according to a pre-stored detection data threshold value, sends out an alarm signal when the detection data value exceeds the limit, and transmits the alarm signal to the remote server through the communication module; and the display module receives the detection data transmitted by the control module. The technical scheme has the following effects:
the running state of the dry-type transformer is detected in real time, the detection data are analyzed and processed to obtain the electric quantity data and the start-stop control state data of the dry-type transformer, whether the data are out of limit is judged, and an alarm signal is sent out, so that the monitoring level of the running state of the dry-type transformer is improved, the running stability of the dry-type transformer is improved, and the visualization of the data is realized.
It is to be understood that the above-described embodiments of the present invention are merely illustrative of or explaining the principles of the invention and are not to be construed as limiting the invention. Therefore, any modification, equivalent replacement, improvement and the like made without departing from the spirit and scope of the present invention should be included in the protection scope of the present invention. Further, it is intended that the appended claims cover all such variations and modifications as fall within the scope and boundaries of the appended claims or the equivalents of such scope and boundaries.
Claims (10)
1. An intelligent management system for a dry-type transformer, the intelligent management system being used for managing the dry-type transformer and comprising: the device comprises an acquisition module, a control module, a display module, a power supply module and a communication module;
the control module is respectively in communication connection with the acquisition module, the display module and the communication module, and the power supply module is respectively in electric connection with the control module, the display module and the communication module;
the acquisition module comprises a plurality of sensor units arranged on the dry-type transformer and is used for acquiring detection data of the dry-type transformer;
the control module acquires the detection data, judges the detection data according to a pre-stored detection data threshold value, sends out an alarm signal when the detection data value exceeds the limit, and transmits the alarm signal to a remote server through the communication module;
and the display module receives the detection data transmitted by the control module.
2. Dry transformer intelligent management system according to claim 1,
the sensor unit includes: the temperature sensor comprises a first temperature sensor, a second temperature sensor, a third temperature sensor, a first current transformer and/or a second temperature transformer;
the first temperature sensor is arranged on a low-voltage coil of the dry-type transformer;
the second temperature sensors are respectively arranged at the a-phase copper bar, the b-phase copper bar, the c-phase copper bar and the n-phase copper bar of the dry-type transformer;
the third temperature sensor is arranged on the upper surface of the iron core of the dry-type transformer;
the first current transformers are disposed at the a-phase, b-phase and c-phase of the dry type transformer to measure three-phase current values of the dry type transformer;
the second current transformer is arranged at the n-phase position of the dry-type transformer to measure the zero sequence current value of the dry-type transformer.
3. Dry transformer intelligent management system according to claim 2,
and the second temperature sensor exchanges data with the control module in a wireless communication mode.
4. The intelligent management system for dry-type transformers according to claim 2, further comprising: a fan;
the fan is arranged on a base channel steel of the dry-type transformer;
the fan is electrically connected with the control module and receives a control instruction of the control module.
5. Dry transformer intelligent management system according to claim 4,
and the fan exchanges data with the control module through an RS485 communication interface.
6. Dry transformer intelligent management system according to claim 2,
and the control module acquires data detection of high-low voltage phase voltage, phase current, zero sequence current, three-phase voltage harmonic component, power factor and/or three-phase unbalance of the dry-type transformer through the plurality of sensor units.
7. Dry transformer intelligent management system according to claim 2,
the control module can obtain the three-phase unbalance rate according to the detection data, and when the three-phase unbalance rate exceeds a preset value, an alarm signal is sent to the remote server through the communication module.
8. Dry transformer intelligent management system according to claim 2,
the first temperature sensor and/or the third temperature sensor are PT100 temperature sensors.
9. Dry transformer intelligent management system according to any of the claims 1-8,
the communication module includes: the system comprises a GPRS mobile data communication interface, a WIFI wireless communication interface, an RS485 serial communication interface and/or an Ethernet communication interface.
10. Dry transformer intelligent management system according to any of the claims 1-8,
the communication module can carry out data communication with the remote server through a DL/T667-1999(IEC-60870-5-103) communication protocol or a Modbus communication protocol.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011256320.5A CN112462173A (en) | 2020-11-11 | 2020-11-11 | Intelligent management system for dry-type transformer |
| PCT/CN2021/123689 WO2022100351A1 (en) | 2020-11-11 | 2021-10-14 | Smart management system for dry-type transformer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011256320.5A CN112462173A (en) | 2020-11-11 | 2020-11-11 | Intelligent management system for dry-type transformer |
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| CN112462173A true CN112462173A (en) | 2021-03-09 |
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| CN202011256320.5A Pending CN112462173A (en) | 2020-11-11 | 2020-11-11 | Intelligent management system for dry-type transformer |
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| CN (1) | CN112462173A (en) |
| WO (1) | WO2022100351A1 (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN113721166A (en) * | 2021-08-25 | 2021-11-30 | 许昌许继软件技术有限公司 | Dry-type full-sensing intelligent transformer device and management system thereof |
| WO2022100351A1 (en) * | 2020-11-11 | 2022-05-19 | 许继变压器有限公司 | Smart management system for dry-type transformer |
| CN115208054A (en) * | 2022-06-06 | 2022-10-18 | 汇网电气有限公司 | Intelligent management system for dry-type transformer |
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| WO2022100351A1 (en) * | 2020-11-11 | 2022-05-19 | 许继变压器有限公司 | Smart management system for dry-type transformer |
| CN113721166A (en) * | 2021-08-25 | 2021-11-30 | 许昌许继软件技术有限公司 | Dry-type full-sensing intelligent transformer device and management system thereof |
| CN115208054A (en) * | 2022-06-06 | 2022-10-18 | 汇网电气有限公司 | Intelligent management system for dry-type transformer |
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| WO2022100351A1 (en) | 2022-05-19 |
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Application publication date: 20210309 |