CN116454741A - Intelligent transformer district's distribution system - Google Patents
Intelligent transformer district's distribution system Download PDFInfo
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- CN116454741A CN116454741A CN202310335601.7A CN202310335601A CN116454741A CN 116454741 A CN116454741 A CN 116454741A CN 202310335601 A CN202310335601 A CN 202310335601A CN 116454741 A CN116454741 A CN 116454741A
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- power distribution
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- 230000001105 regulatory effect Effects 0.000 claims abstract description 38
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 12
- 238000007654 immersion Methods 0.000 claims description 11
- 238000012544 monitoring process Methods 0.000 claims description 10
- 230000009466 transformation Effects 0.000 claims description 10
- 230000007613 environmental effect Effects 0.000 claims description 6
- 239000000523 sample Substances 0.000 claims description 3
- 238000010586 diagram Methods 0.000 description 6
- 230000005611 electricity Effects 0.000 description 6
- 238000001514 detection method Methods 0.000 description 5
- 230000005540 biological transmission Effects 0.000 description 4
- BASFCYQUMIYNBI-UHFFFAOYSA-N platinum Chemical compound [Pt] BASFCYQUMIYNBI-UHFFFAOYSA-N 0.000 description 4
- 238000004088 simulation Methods 0.000 description 4
- 238000000034 method Methods 0.000 description 3
- 238000006243 chemical reaction Methods 0.000 description 2
- 238000004891 communication Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 229910052697 platinum Inorganic materials 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 238000005070 sampling Methods 0.000 description 2
- 238000012351 Integrated analysis Methods 0.000 description 1
- 230000002159 abnormal effect Effects 0.000 description 1
- 230000032683 aging Effects 0.000 description 1
- 238000004458 analytical method Methods 0.000 description 1
- 238000004364 calculation method Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000007791 dehumidification Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- 230000008020 evaporation Effects 0.000 description 1
- 238000001704 evaporation Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 230000004044 response Effects 0.000 description 1
Classifications
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02B—BOARDS, SUBSTATIONS OR SWITCHING ARRANGEMENTS FOR THE SUPPLY OR DISTRIBUTION OF ELECTRIC POWER
- H02B1/00—Frameworks, boards, panels, desks, casings; Details of substations or switching arrangements
- H02B1/24—Circuit arrangements for boards or switchyards
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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
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- 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
- H02J13/00002—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 monitoring
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- 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
- H02J13/00032—Systems characterised by the controlled or operated power network elements or equipment, the power network elements or equipment not otherwise provided for
- H02J13/00034—Systems characterised by the controlled or operated power network elements or equipment, the power network elements or equipment not otherwise provided for the elements or equipment being or involving an electric power substation
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- 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
- H02J13/00032—Systems characterised by the controlled or operated power network elements or equipment, the power network elements or equipment not otherwise provided for
- H02J13/00036—Systems characterised by the controlled or operated power network elements or equipment, the power network elements or equipment not otherwise provided for the elements or equipment being or involving switches, relays or circuit breakers
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02P—CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORS OR DYNAMO-ELECTRIC CONVERTERS; CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS
- H02P13/00—Arrangements for controlling transformers, reactors or choke coils, for the purpose of obtaining a desired output
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Supply And Distribution Of Alternating Current (AREA)
Abstract
The invention discloses a power distribution system of an intelligent transformer area, which comprises an integrated intelligent transformer and a low-voltage power distribution assembly, wherein the integrated intelligent transformer comprises a low-voltage power distribution assembly, a high-voltage receiving device and an on-load voltage regulating switch, the low-voltage power distribution assembly is provided with a main control terminal and a transformer intelligent terminal, the main control terminal is electrically connected with the high-voltage receiving device, and the transformer intelligent terminal is electrically connected with the on-load voltage regulating switch; the main control terminal is electrically connected with the load end and is used for receiving operation data of the integrated intelligent transformer and the load end; the intelligent terminal of the transformer is used for adjusting the operation of the integrated intelligent transformer according to the load end data. The power distribution system is directly connected with the integrated intelligent transformer and the low-voltage power distribution assembly through the main control terminal, so that the main control terminal can monitor the working states of the high-voltage end and the low-voltage end in real time, and the work of the transformer is adjusted based on the load end, so that the power distribution efficiency is effectively improved, the error is reduced through directly collecting information, and the power distribution accuracy is improved.
Description
Technical Field
The invention mainly relates to the technical field of power grid distribution, in particular to a distribution system of an intelligent transformer area.
Background
Along with the development of digital electric network, present electric power transmission and distribution system realizes informatization, automation and intellectuality basically, wisdom district is the important pivot of connection distribution part and electricity consumption part, wisdom district is used for receiving the high-voltage current of power station promptly, carry out the distribution to the load equipment in the electricity consumption district after the vary voltage, current wisdom district construction is general through setting up high-voltage intelligent terminal at high-voltage receiving terminal, and set up smart electric meter at the load end, cooperation multichannel ampere meter, voltmeter and current transformer etc. equipment, gather and convert through signal acquisition ware, thereby realize the collection of electricity consumption information in the wisdom district, so that distribution adjustment is carried out according to this electricity consumption information, but this kind of mode needs to set up multistage information acquisition system, information acquisition efficiency is slow, lead to wisdom district's distribution system response speed is slow, influence wisdom district's distribution efficiency, through multistage information acquisition, lead to the increase of electricity consumption information error, influence wisdom district's distribution accuracy.
Disclosure of Invention
The invention aims to overcome the defects of the prior art, and provides a power distribution system of an intelligent transformer area.
The invention provides a power distribution system of an intelligent transformer area, which comprises an integrated intelligent transformer and a low-voltage power distribution assembly, wherein the integrated intelligent transformer comprises a high-voltage receiving device and a transformation assembly, the high-voltage receiving device is connected with the low-voltage distribution assembly based on the transformation assembly, and the low-voltage distribution assembly is connected with a load end of the distribution system;
the low-voltage distribution assembly is provided with a main control terminal and a transformer intelligent terminal, the main control terminal is electrically connected with the high-voltage receiving device, and the transformer intelligent terminal is electrically connected with the on-load voltage regulating switch;
the main control terminal is electrically connected with the load end and is used for receiving operation data of the integrated intelligent transformer and the load end;
the on-load voltage regulating switch is a multi-gear switch, the intelligent transformer terminal is connected with the multi-gear switch, and the intelligent transformer terminal is used for regulating the operation of the integrated intelligent transformer according to the load end data.
Further, the on-load voltage regulating switch comprises a multi-gear voltage regulating switch, an on-load capacity regulating switch and a controller;
the controller is arranged in a distribution box of the low-voltage distribution assembly, and the multi-gear voltage regulating switch and the on-load capacity regulating switch are arranged on a main support of the transformer.
Further, the low-voltage power distribution assembly comprises a low-voltage wire inlet loop and a low-voltage wire outlet loop;
the main control terminal and the intelligent transformer terminal are arranged in the low-voltage wire inlet loop;
the low voltage outlet circuit is provided with a low voltage distribution terminal.
Further, the low-voltage wire inlet loop and the high-voltage receiving device are provided with the same set of current transformer.
Further, the transformer assembly further comprises a temperature sensor, and the intelligent terminal of the transformer is electrically connected with the temperature sensor.
Further, the temperature probe of the temperature sensor is arranged at the pile head position of the integrated intelligent transformer, and the temperature sensor is connected with the intelligent terminal of the transformer based on a data line through signals.
Further, the intelligent station area is further provided with an environment monitoring component, and the environment monitoring component comprises an environment controller, a water immersion sensor, a thermometer and a regulator;
the water immersion sensor, the thermometer and the regulator are all electrically connected with the environment controller.
Further, the thermometer is arranged in the integrated intelligent transformer, the water immersion sensor is arranged in the low-voltage distribution assembly, and the integrated intelligent transformer and the low-voltage distribution assembly are both provided with the regulator.
Further, the regulator is a heater, or the regulator is a fan.
Further, an integrated oil level gauge is arranged in the integrated intelligent transformer and is electrically connected with the environment controller.
The invention provides a power distribution system of an intelligent transformer area, which is characterized in that a main control terminal is directly connected with an integrated intelligent transformer and a low-voltage power distribution assembly, so that the main control terminal can monitor the working states of a high-voltage end and a low-voltage end in real time, and meanwhile, the work of the integrated intelligent transformer can be adjusted according to the load end of the low-voltage power distribution assembly, the power distribution efficiency of the intelligent transformer area is improved, the error is reduced through directly collecting information, and the power distribution accuracy is improved.
Drawings
In order to more clearly illustrate the embodiments of the invention or the technical solutions in the prior art, the drawings which are required in the description of the embodiments or the prior art will be briefly described, it being obvious that the drawings in the description below are only some embodiments of the invention, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
Fig. 1 is a schematic diagram of a distribution system of an intelligent transformer area according to an embodiment of the present invention;
fig. 2 is a schematic diagram of a circuit connection structure of an intelligent transformer area in an embodiment of the present invention;
fig. 3 is a schematic structural diagram of an integrated intelligent transformer according to an embodiment of the present invention.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
Fig. 1 shows a schematic structure diagram of a power distribution system of a smart zone in an embodiment of the present invention, fig. 2 shows a schematic circuit connection structure diagram of the smart zone in an embodiment of the present invention, and fig. 3 shows a schematic structure diagram of an integrated intelligent transformer 1 in an embodiment of the present invention, the power distribution system includes an integrated intelligent transformer 1 and a low voltage power distribution assembly 2, the integrated intelligent transformer 1 includes a high voltage receiving device 11 and a voltage transformation assembly 12, and the high voltage receiving device 11 is connected to the low voltage power distribution assembly 2 based on the voltage transformation assembly 12.
Further, the high-voltage receiving device 11 is configured to receive a high-voltage current input from a transformer substation, where the high-voltage receiving device 11 includes a voltage transformer and a current transformer, and the receiving of the power supply of the transformer is achieved by setting the voltage transformer and the current transformer and by means of the voltage transformer and the current transformer, and the size of the accessed voltage and current is adjusted according to the overall load of the power grid so as to meet the operation requirement of the power grid.
Specifically, the voltage transformation assembly 12 includes an on-load voltage regulating switch 121 disposed inside the transformer, and the power grid system can adjust the conversion between the high-voltage current and the low-voltage current through the on-load voltage regulating switch 121 according to the operation condition of the power grid system, so that the current and the voltage in the power grid can meet the operation requirement of the power grid system.
Specifically, the on-load voltage regulating switch 121 is a multi-gear switch, and in this embodiment, the on-load voltage regulating switch 121 is a 17-gear on-load voltage regulating switch 121, so that the voltage conversion effect of the voltage transformation assembly 12 can be adjusted according to the actual load current requirement.
Further, the on-load voltage regulating switch 121 may be a modularized split structure, the on-load voltage regulating switch 121 includes a multi-gear voltage regulating switch, an on-load capacity regulating switch and a controller, the multi-gear voltage regulating switch and the on-load capacity regulating switch adopt a mode of up-down splicing, the controller is arranged in a distribution box of the low-voltage distribution assembly 2, the multi-gear voltage regulating switch and the on-load capacity regulating switch are arranged on a main support of the transformer, and the on-load voltage regulating switch 121 can be accommodated in the transformer assembly 12 through the modularized split structure, so that the overall size of the on-load voltage regulating switch 121 is reduced, and the setting cost of the on-load voltage regulating switch 121 is reduced.
Specifically, the low voltage distribution assembly 2 includes a low voltage inlet loop 21 and a low voltage outlet loop 22, the low voltage inlet loop 21 is provided with a main control terminal 212 and a transformer intelligent terminal 211, the low voltage outlet loop 22 is provided with a low voltage distribution terminal, the main control terminal 212 is connected with the high voltage receiving device 11, the main control terminal 212 can receive the current voltage value flowing through the high voltage receiving device 11, and meanwhile, the main control terminal 212 can monitor the operation state of the high voltage receiving device 11.
Further, the monitoring of the operation state of the high-voltage receiving device 11 by the main control terminal 212 includes monitoring the overall temperature, pressure and efficiency of processing the current and voltage of the high-voltage receiving device 11, and the main control terminal 212 may analyze the operation state of the high-voltage receiving device 11 based on the monitoring result of the operation state of the high-voltage receiving device 11.
Further, the low-voltage power distribution assembly 2 further includes a compensation loop 23, where the compensation loop 23 is configured to compensate and correct an error of the power distribution operation of the intelligent transformer area, so as to improve the power distribution accuracy of the intelligent transformer area.
Further, by setting the master control terminal 212 to monitor the high-voltage receiving device 11 in real time, maintenance convenience of the high-voltage receiving device 11 can be improved, so that the service life of the high-voltage receiving device 11 can be prolonged.
Further, the low-voltage wire inlet loop 21 and the high-voltage receiving device 11 are provided with the same set of current transformer, and the low-voltage wire inlet loop 21 and the high-voltage receiving device 11 share one set of current transformer equipment, so that the current sampler between the high-voltage receiving device 11 and the low-voltage distribution assembly 2 and the current collector of the on-load voltage regulating switch 121 can perform sampling work under the power supply effect of the current transformer equipment, circuit wire arrangement and wiring between various hardware are reduced, wiring arrangement inside the integrated intelligent transformer 1 is simplified, and setting cost of the integrated intelligent transformer 1 is reduced.
Specifically, the low-voltage distribution monitoring terminal 221 is electrically connected to the main control terminal 212, the main control terminal 212 may receive the distribution information of the low-voltage distribution single terminal and the current parameter of the low-voltage terminal, that is, the main control terminal 212 may synchronously obtain the current parameter of the high-voltage terminal and the current parameter of the low-voltage terminal, and by setting the main control terminal 212 to perform centralized collection of the current parameters on the high-voltage receiving device 11 and the low-voltage distribution monitoring terminal 221, intelligent collection efficiency and quality of the power grid distribution system may be improved, and meanwhile, a plurality of sensors, data collectors, data converters and other devices may be reduced, thereby simplifying the layout of the intelligent area system and reducing the configuration cost of the intelligent area.
Further, the intelligent transformer area is further provided with an electronic display, the main control terminal 212 is in signal connection with the electronic display, and the main control terminal 212 can display current parameters of a high-voltage end and a low-voltage end in the intelligent transformer area through the electronic display, so that the running condition of the power distribution system of the intelligent transformer area can be intuitively displayed.
Specifically, the main control terminal 212 is further connected to a load end in the power distribution system of the intelligent station, that is, any load device connected to the intelligent station is electrically connected to the main control terminal 212, the main control terminal 212 can perform power distribution arrangement according to the type and the power consumption specification of the load device connected to the intelligent station, and the main control terminal 212 can display the running state of the load end through the electronic display, for example, the load device newly connected to the intelligent station is classified and partitioned, and the state of the load device is adjusted according to the power consumption condition of the load device.
Further, the states of the load device include an idle state, a normal working state, an overload state, an off-line state, etc., that is, the main control terminal 212 may monitor the working state of the load device in real time and display the working state of the load device in real time through an electronic display.
Specifically, the intelligent transformer area distribution system further comprises a cloud database, the main control terminal 212 can access the cloud database based on the wireless communication module, the main control terminal 212 can upload operation data of the intelligent transformer area to the cloud database so as to record operation conditions of the intelligent transformer area in real time, the main control terminal 212 can acquire the operation data of the intelligent transformer area through the cloud database, and when the intelligent transformer area breaks down or is restarted, the main control terminal 212 can reset the operation data of the intelligent transformer area through the cloud database so as to quickly recover power distribution operation of the intelligent transformer area.
Further, the master control terminal 212 may access an external network based on the wireless communication module, and a worker may remotely manage and adjust the intelligent station through logging in a related management webpage, so as to improve the reliability of operation of the intelligent station.
Further, the main control terminal 212 is electrically connected to the intelligent transformer terminal 211, the main control terminal 212 may receive transformer regulation data of the intelligent transformer terminal 211, and the main control terminal 212 may adjust a transformation regulation command according to the transformer regulation data and operation data of the high-voltage receiving device 11.
Specifically, the intelligent transformer terminal 211 is electrically connected with the on-load voltage regulating switch 121, and the intelligent transformer terminal 211 can adjust the on-load voltage regulating switch 121 according to the use requirement of the load end in the intelligent transformer area, so as to adjust the voltage transformation regulation condition of the integrated intelligent transformer 1, so that the high-voltage current of the transformer substation can be converted into the high-voltage current which meets the working operation of the load end.
Specifically, the master control terminal 212 determines the voltage threshold value and the voltage gate duration of the transformer according to the working state of the integrated intelligent transformer 1, that is, performs integrated analysis according to the working temperature, the highest working voltage, the working stability and other aspects of the integrated transformer, so as to obtain the main working parameters of the integrated intelligent transformer 1 in the stable state.
Specifically, the master control terminal 212 analyzes current three-phase voltage data of the low-voltage distribution assembly 2 according to the electricity consumption condition of the load end, that is, the three-phase voltage data of the integrated intelligent transformer 1 under the condition that the current load works is met, compares the three-phase voltage data with the voltage threshold value, and if the three-phase voltage data is smaller than the voltage threshold value, the master control terminal 212 maintains the working state of the integrated intelligent transformer 1.
Further, if the three-phase voltage data is greater than the voltage threshold, the master control terminal 212 may analyze the trend of the three-phase voltage data according to the operation history data of the intelligent transformer area and the current operation condition of the load end, so as to calculate the duration of the current three-phase voltage data, and the master control terminal 212 compares the duration of the three-phase voltage data with the voltage threshold time, and if the duration of the three-phase voltage data is greater than the voltage threshold time, the master control terminal 212 adjusts the on-load voltage regulating switch 121, so as to adjust the operation of the integrated intelligent transformer.
Further, the main control terminal 212 is electrically connected to the intelligent transformer terminal 211, the main control terminal 212 may send an adjustment command to the intelligent transformer terminal 211 based on the analysis of the three-phase voltage data, and the intelligent transformer terminal 211 controls the integrated intelligent transformer 1 to perform on-load voltage regulation operation based on the adjustment command.
Specifically, the intelligent transformer terminal 211 simulates the upshift or downshift operation of the on-load tap changer 121 according to the adjustment command, so as to obtain upshift three-phase voltage simulation data and downshift three-phase voltage simulation data after adjustment of the integrated intelligent transformer 1, and the intelligent transformer terminal 211 calculates the adjusted voltage offset rate of the integrated intelligent transformer 1 according to the upshift three-phase voltage simulation data and the downshift three-phase voltage simulation data.
Further, the calculation mode of the adjusted voltage offset rate is as follows: and analyzing to obtain an effective value of the three-phase voltage data after upshift or downshift, calculating a difference value between the effective value and the rated voltage value of the three-phase voltage data according to the rated voltage value of the integrated intelligent transformer 1, and calculating a ratio value between the difference value and the effective value to obtain the adjusted voltage offset rate.
Further, the intelligent transformer terminal 211 analyzes the effective voltage offset rate of the intelligent integrated transformer 1 according to the working state of the intelligent integrated transformer 1 and the working state of the load end, that is, the effective voltage offset rate is within the effective voltage offset rate, and the intelligent integrated transformer 1 can meet the working and running requirements of the load end.
Further, the intelligent transformer terminal 211 compares the voltage deviation rate of the upshift three-phase voltage analog data, the voltage deviation rate of the downshift three-phase voltage analog data and the effective voltage deviation rate to obtain an upshift deviation rate difference value of the voltage deviation rate of the upshift three-phase voltage analog data and the effective voltage deviation rate, and a downshift deviation rate difference value of the voltage deviation rate of the downshift three-phase voltage analog data and the effective voltage deviation rate, compares the upshift deviation rate difference value with the downshift deviation rate difference value, performs a downshift adjustment operation on the integrated intelligent transformer if the upshift deviation rate difference value is greater than the downshift deviation rate difference value, and performs an upshift adjustment operation on the integrated intelligent transformer if the upshift deviation rate difference value is less than the downshift deviation rate difference value.
Specifically, the transformer component 12 further includes a temperature sensor 123 disposed on a cover of the integrated intelligent transformer 1, the intelligent transformer terminal 211 is connected to the temperature sensor 123, the intelligent transformer terminal 211 may receive detection data of the temperature sensor 123, the intelligent transformer terminal 211 may adjust an internal temperature of the transformer component 12 according to detection data of the temperature sensor 123, if a temperature of the transformer component 12 is too high, the intelligent transformer terminal 211 may adjust an internal temperature of the transformer component 12 according to detection data of the temperature sensor 123.
Further, when the abnormal temperature inside the transformer assembly 12 continues for a preset time, the intelligent transformer terminal 211 may send an alarm and notify the staff to overhaul.
Specifically, temperature sensor 123's temperature probe sets up pile head position in integral type intelligent transformer 1, temperature sensor 123 based on the data line with transformer intelligent terminal 211 signal connection makes transformer intelligent terminal 211 can receive temperature sensor 123's detected data, transformer intelligent terminal 211 can be through temperature sensor 123 carries out data sampling and data processing to the pile head temperature of transformer, thereby acquires transformer pile head temperature, will through the data line temperature sensor 123 with transformer intelligent terminal 211 lug connection has reduced data collector's setting to simplify wisdom district distribution system's hardware connection overall arrangement, improve wisdom district hardware installation's convenience.
Further, by means of the data line connection, the intelligent transformer terminal 211 can directly collect data of the transformer pile head temperature through the temperature sensor 123, and stability of data transmission between the temperature sensor 123 and the intelligent transformer terminal 211 can be effectively improved.
Further, the temperature sensor 123 is a PT1000 temperature sensor 123, the PT1000 temperature sensor 123 is a platinum resistance sensor, and the resistance value of the platinum resistance sensor is proportional to the change of the temperature, that is, the relationship between the resistance value of the PT1000 sensor and the temperature change is: the resistance value of the PT1000 temperature sensor 123 is 1000 ohms when the temperature of the PT1000 temperature sensor 123 is 0 c, and is about 1385.005 ohms when the temperature of the PT1000 temperature sensor 123 is 100 c.
Further, the working principle of the PT1000 sensor is as follows: the resistance of the PT1000 sensor can increase at a uniform speed along with the temperature rise, and the temperature change condition of the transformer pile head can be accurately measured according to the resistance change relation of the PT1000 sensor.
Specifically, the intelligent transformer area is further provided with an environment monitoring assembly, the environment monitoring assembly comprises an environment controller, a water immersion sensor, a thermometer and a regulator, the thermometer, the water immersion sensor and the regulator are electrically connected with the environment controller, the thermometer is arranged in the integrated intelligent transformer 1, the water immersion sensor is arranged in the low-voltage distribution assembly 2, the integrated intelligent transformer 1 and the low-voltage distribution assembly 2 are both provided with the regulator, the environment controller can receive detection data of the thermometer and the water immersion sensor, the internal temperature of the integrated intelligent transformer 1 is detected according to the thermometer, and the environment controller can adjust the internal temperature of the integrated intelligent transformer 1 through the regulator; according to the detection data of the water immersion sensor, the environment controller can acquire the humidity condition in the low-voltage power distribution assembly 2, and adjust the humidity condition in the low-voltage power distribution assembly 2 through the regulator according to the humidity condition in the low-voltage power distribution assembly 2.
Further, the regulator may be a heater, and the environmental controller may drive the heater to heat the integrated intelligent transformer 1, so that the internal temperature of the integrated intelligent transformer rises to meet the normal working requirement, and adjust the internal temperature of the integrated intelligent transformer in an environment with a lower environmental temperature, thereby ensuring the stability and reliability of power transmission; the environment controller can also drive the heater to heat the low-voltage distribution assembly 2, so that the evaporation of water in the low-voltage distribution assembly 2 is improved, the humidity in the low-voltage distribution assembly 2 is reduced, and the working safety of the low-voltage distribution assembly 2 is improved.
Further, the regulator may be a fan, and the environmental controller may drive the fan to cool the integrated intelligent transformer 1, or perform operations such as dehumidification on the low-voltage power distribution assembly 2.
Specifically, an integral oil level gauge 122 is disposed in the integral intelligent transformer 1, the integral oil level gauge 122 can monitor the oil bottom temperature, the oil top temperature, the oil pressure and the oil level of the integral intelligent transformer 1, the integral oil level gauge 122 is electrically connected with an environment controller, the integral oil level gauge 122 can send detected transformer oil level data to the environment controller, the environment controller can record changes of the transformer oil top temperature and the oil bottom temperature according to data of the internal temperature and the like of the integral intelligent transformer 1, so as to monitor the temperature changes of the integral intelligent transformer 1.
Specifically, the environment controller is connected to the main control terminal 212, the environment controller may send the oil level temperature data to the main control terminal 212, and the main control terminal 212 may receive the oil level temperature data and calculate the hot spot temperature of the integrated intelligent transformer 1 according to the aging coefficient of the integrated intelligent transformer 1, so as to perform the remaining life assessment of the integrated intelligent transformer 1.
Specifically, the low-voltage power distribution assembly 2 is further provided with a compensation circuit, an automatic compensation controller 231 is arranged in the compensation circuit, the automatic compensation controller 231 is connected with the low-voltage outlet loop 22 in parallel, and the automatic compensation controller 231 can compensate and correct according to the current output conditions of the low-voltage outlet loop 22 and the load end, so that the power distribution efficiency and the power distribution quality of the intelligent transformer area power distribution system can be improved, and the loss of electric energy in the power distribution process is reduced.
Further, the automatic compensation controller 231 is electrically connected to the main control terminal 212, the automatic compensation controller 231 can feed back the current transmission compensation value of the intelligent transformer area to the main control terminal 212, and the main control terminal 212 can adjust the power distribution of the intelligent transformer area according to the compensation value, so that the power loss of the power distribution system of the intelligent transformer area is reduced, and the power distribution quality of the intelligent transformer area is improved.
The embodiment of the invention provides a power distribution system of an intelligent transformer area, which is characterized in that a main control terminal 212 is directly connected with an integrated intelligent transformer 1 and a low-voltage power distribution assembly 2, so that the main control terminal 212 can monitor the working states of a high-voltage end and a low-voltage end in real time, and can adjust the work of the integrated intelligent transformer 1 according to the load end of the low-voltage power distribution assembly 2, thereby improving the power distribution efficiency of the intelligent transformer area, reducing errors by directly collecting information and improving the power distribution accuracy.
Those of ordinary skill in the art will appreciate that all or part of the steps in the various methods of the above embodiments may be implemented by a program to instruct related hardware, the program may be stored in a computer readable storage medium, and the storage medium may include: read Only Memory (ROM), random access Memory (RAM, random Access Memory), magnetic or optical disk, and the like.
In addition, the power distribution system of the intelligent transformer area provided by the embodiment of the present invention is described in detail, and specific examples should be adopted to illustrate the principles and implementation modes of the present invention, and the description of the above examples is only used to help understand the method and core idea of the present invention; meanwhile, as those skilled in the art will have variations in the specific embodiments and application scope in accordance with the ideas of the present invention, the present description should not be construed as limiting the present invention in view of the above.
Claims (10)
1. The intelligent transformer comprises a high-voltage receiving device and a transformation assembly, wherein the high-voltage receiving device is connected with the low-voltage distribution assembly based on the transformation assembly, and the low-voltage distribution assembly is connected with a load end of the distribution system;
the low-voltage distribution assembly is provided with a main control terminal and a transformer intelligent terminal, the main control terminal is electrically connected with the high-voltage receiving device, and the transformer intelligent terminal is electrically connected with the on-load voltage regulating switch;
the main control terminal is electrically connected with the load end and is used for receiving operation data of the integrated intelligent transformer and the load end;
the on-load voltage regulating switch is a multi-gear switch, the intelligent transformer terminal is connected with the multi-gear switch, and the intelligent transformer terminal is used for regulating the operation of the integrated intelligent transformer according to the load end data.
2. The intelligent block power distribution system of claim 1, wherein the on-load voltage regulating switch comprises a multi-gear voltage regulating switch, an on-load capacitance regulating switch, and a controller;
the controller is arranged in a distribution box of the low-voltage distribution assembly, and the multi-gear voltage regulating switch and the on-load capacity regulating switch are arranged on a main support of the transformer.
3. The intelligent block power distribution system of claim 1, wherein the low voltage power distribution assembly comprises a low voltage inlet loop and a low voltage outlet loop;
the main control terminal and the intelligent transformer terminal are arranged in the low-voltage wire inlet loop;
the low voltage outlet circuit is provided with a low voltage distribution terminal.
4. The intelligent block distribution system of claim 3, wherein the low voltage feeder circuit and the high voltage receiving device are provided with the same set of current transformer devices.
5. The intelligent block distribution system of claim 1, wherein the transformer assembly further comprises a temperature sensor, the transformer intelligent terminal being electrically connected to the temperature sensor.
6. The intelligent transformer area power distribution system of claim 5, wherein the temperature probe of the temperature sensor is arranged at the pile head position of the integrated intelligent transformer, and the temperature sensor is in signal connection with the intelligent transformer terminal based on a data line.
7. The intelligent block distribution system of claim 1, wherein the intelligent block is further provided with an environmental monitoring component comprising an environmental controller, a water immersion sensor, a thermometer, and a regulator;
the water immersion sensor, the thermometer and the regulator are all electrically connected with the environment controller.
8. The intelligent block power distribution system of claim 7, wherein the thermometer is disposed within the integrated intelligent transformer, the water immersion sensor is disposed within a low voltage power distribution assembly, and the integrated intelligent transformer and the low voltage power distribution assembly are both provided with the regulator.
9. The intelligent block distribution system of claim 7, wherein the regulator is a heater or the regulator is a fan.
10. The intelligent block power distribution system of claim 7, wherein an integral oil level gauge is disposed within the integral intelligent transformer, the integral oil level gauge being electrically connected to the environmental controller.
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