CN117410083A - High-energy-efficiency power transformer - Google Patents
High-energy-efficiency power transformer Download PDFInfo
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- CN117410083A CN117410083A CN202311722485.0A CN202311722485A CN117410083A CN 117410083 A CN117410083 A CN 117410083A CN 202311722485 A CN202311722485 A CN 202311722485A CN 117410083 A CN117410083 A CN 117410083A
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- 229910052782 aluminium Inorganic materials 0.000 claims abstract description 100
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims abstract description 100
- 238000000034 method Methods 0.000 claims abstract description 39
- 230000008569 process Effects 0.000 claims description 23
- 238000012545 processing Methods 0.000 claims description 17
- 230000008859 change Effects 0.000 claims description 8
- 238000006073 displacement reaction Methods 0.000 claims description 8
- 238000004364 calculation method Methods 0.000 claims description 6
- 241000764238 Isis Species 0.000 claims description 3
- 238000012423 maintenance Methods 0.000 abstract description 5
- 230000000694 effects Effects 0.000 description 14
- 229910052751 metal Inorganic materials 0.000 description 5
- 239000002184 metal Substances 0.000 description 5
- 230000009467 reduction Effects 0.000 description 5
- 239000000428 dust Substances 0.000 description 4
- 230000008878 coupling Effects 0.000 description 3
- 238000010168 coupling process Methods 0.000 description 3
- 238000005859 coupling reaction Methods 0.000 description 3
- 230000007423 decrease Effects 0.000 description 3
- 238000013461 design Methods 0.000 description 3
- 238000009413 insulation Methods 0.000 description 3
- 238000003466 welding Methods 0.000 description 3
- 238000004891 communication Methods 0.000 description 2
- 230000007797 corrosion Effects 0.000 description 2
- 238000005260 corrosion Methods 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000006870 function Effects 0.000 description 2
- 239000011810 insulating material Substances 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 230000035699 permeability Effects 0.000 description 2
- 238000006467 substitution reaction Methods 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- 239000004411 aluminium Substances 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 238000004422 calculation algorithm Methods 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000009792 diffusion process Methods 0.000 description 1
- 238000005868 electrolysis reaction Methods 0.000 description 1
- 230000004907 flux Effects 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 239000012774 insulation material Substances 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
Classifications
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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
- H01F27/34—Special means for preventing or reducing unwanted electric or magnetic effects, e.g. no-load losses, reactive currents, harmonics, oscillations, leakage fields
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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
- H01F27/02—Casings
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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
- H01F27/34—Special means for preventing or reducing unwanted electric or magnetic effects, e.g. no-load losses, reactive currents, harmonics, oscillations, leakage fields
- H01F27/346—Preventing or reducing leakage fields
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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
- H01F27/40—Structural association with built-in electric component, e.g. fuse
-
- 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
- H01F27/34—Special means for preventing or reducing unwanted electric or magnetic effects, e.g. no-load losses, reactive currents, harmonics, oscillations, leakage fields
- H01F2027/348—Preventing eddy currents
-
- 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
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/50—Photovoltaic [PV] energy
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Housings And Mounting Of Transformers (AREA)
Abstract
The invention discloses a high-energy-efficiency power transformer, in particular to the technical field of transformers, which comprises a moving structure, a moving and distance information acquisition module and a controller, wherein the moving structure is a moving structure; in the invention, when the aluminum strip is required to be replaced or maintained, only the screw for fixing the moving structure is required to be unscrewed at the moment, the whole moving structure is directly extracted from the inside of the transformer, and then the maintenance is carried out, so that complex and precise disassembly and replacement procedures are not required; the method comprises the steps of acquiring a moving distance deviation coefficient and a humidity deviation coefficient, generating an influence coefficient, comparing the generated influence coefficient with a preset influence coefficient threshold, and if the influence coefficient is larger than the preset influence coefficient threshold, proving that the magnetic leakage of the transformer is serious at the moment, sending an alarm by the transformer at the moment, and continuously adjusting the moving distance of an aluminum strip until the transformer does not send the alarm any more in order to reduce the magnetic leakage of the transformer, thereby proving that the phenomenon of the magnetic leakage of the transformer at the moment is minimum and reducing loss.
Description
Technical Field
The invention relates to the technical field of transformer control, in particular to a high-energy-efficiency power transformer.
Background
The transformer eddy current loss refers to energy loss generated by induced current caused by an alternating magnetic field in metal members (e.g., wires, cores, etc.) of the transformer. When the transformer is energized, the magnetic field changes with the change in current, which induces eddy currents in the metal component. These vortices can cause localized heating within the metal material, consuming a portion of the energy, resulting in a loss of energy. Thus, eddy current loss is the energy lost to the transformer in operation due to the eddy currents generated in the metal components. The stray loss of current in the oil tank is reduced, the aluminum strips are welded on the side wall of the oil tank in the prior art, and the magnetic leakage is reduced due to the reaction of eddy currents, so that the stray loss is reduced.
The prior art has the following defects:
the existing aluminum strips are usually fastened on the side wall of the transformer oil tank in a welding mode, if replacement is needed, the whole transformer must be stopped, and then complex and precise disassembly and replacement procedures are performed, which is time-consuming and complex. In addition, due to the fixity of the aluminum strip position, the flexibility of fine adjustment of magnetic leakage is limited. In the case where it is necessary to change magnetic field restriction or solve the magnetic leakage phenomenon, the problem is often difficult to be rapidly and effectively solved because it is difficult to easily adjust the position or angle of the aluminum strip.
In order to solve the two defects, a technical scheme is provided.
Disclosure of Invention
In order to overcome the above-mentioned drawbacks of the prior art, embodiments of the present invention provide an energy efficient power transformer to solve the above-mentioned problems.
In order to achieve the above purpose, the present invention provides the following technical solutions:
the high-energy-efficiency power transformer comprises a transformer body, wherein a moving structure, a moving and distance information acquisition module and a controller are arranged at the top of the transformer body;
and (3) a moving structure: the aluminum strip lifting device comprises a plurality of motors, a plurality of telescopic rods and a plurality of aluminum strips, wherein the motors are started to drive the telescopic rods to stretch so that the aluminum strips move to change the positions and angles of the aluminum strips;
the movement and distance information acquisition module: the device is used for collecting the actual moving distance of the telescopic rod;
the controller analyzes the output signals of the movement and distance information acquisition module, and controls the movement distance of the telescopic rod to adjust the position and angle of the aluminum strip.
In a preferred embodiment, the moving structure further comprises a plurality of fixing frames, the fixing frames are fixed on the transformer top cover through screws, the top of each fixing frame is fixedly connected with a plurality of telescopic rod bases and a moving and distance information acquisition module, the top ends of the telescopic rod bases are fixedly connected with one ends of connecting shafts, the other ends of the connecting shafts are fixedly connected with motors, one sides of the motors are provided with controllers, the motors are connected with the bottom ends of the controllers through screws, and the motor bases are fixed on the transformer top cover through screws.
In a preferred embodiment, the moving structure further comprises a plurality of telescopic rods, the bottoms of the telescopic rods are fixedly connected with the bottoms of the telescopic rod bases, the tops of the telescopic rods are fixedly connected with fixing blocks, the inner surfaces of the fixing blocks are provided with rotating shafts, the top ends of the rotating shafts are provided with ferrules, and the aluminum strips penetrate through the ferrules and are fixed on the ferrules.
In a preferred embodiment, the controller comprises an acquisition module, a processing module, a comparison module, an early warning module and an adjustment module;
the acquisition module is used for acquiring self parameter information and external environment information of the transformer in the process of reducing magnetic leakage, and transmitting the self parameter information and the external environment information to the processing module after acquisition;
the self parameter information comprises a moving distance deviation coefficient, and after acquisition, the acquisition module calibrates the moving distance deviation coefficient asThe external environment information comprises humidity deviation coefficient, and after the acquisition, the acquisition module calibrates the humidity deviation coefficient to +.>；
The processing module is used for processing the parameter information of the transformer and the outside in the process of reducing the magnetic leakageComprehensively processing environment information, establishing a data processing model, and generating influence coefficientsTransmitting the influence coefficient to a comparison module;
contrast module, will influence the coefficientWith a predetermined influence coefficient threshold value->And comparing, generating an early warning signal according to a comparison result, transmitting the signal to an early warning module, and generating or not generating an early warning prompt through the early warning module.
And the adjusting module is used for continuously adjusting the position and the angle of the aluminum strip according to the early warning signal generated by the early warning module until no alarm is emitted.
In a preferred embodiment, the obtaining logic of the moving distance deviation coefficient is:
acquiring the actual moving distance and the preset moving distance of the aluminum strip, and marking the actual moving distance and the preset moving distance asAnd->；
Calculating a moving distance deviation coefficient, wherein the calculating formula is as follows:wherein->Is a coefficient of displacement distance deviation.
In a preferred embodiment, the humidity deviation coefficient obtaining logic is:
acquiring the optimal humidity range corresponding to the aluminum strip when the aluminum strip moves to the original preset optimal distance, and marking the range asAnd->；
Acquiring the humidity of the transformer in the actual operation process and marking asAnd calculating a humidity deviation coefficient;
and calculating a humidity deviation coefficient, wherein the expression is as follows:
if it isIs greater than->The calculation formula is as follows: />If->Less than->The calculation formula is as follows: />Wherein->Is the humidity deviation coefficient.
In a preferred embodiment, the influence coefficientThe acquisition logic of (1) is:
the acquired deviation coefficient of the moving distanceAnd humidity deviation coefficient>Performing comprehensive treatment and establishing a treatment modelType, generate influence coefficient->The expression is:
；
in the method, in the process of the invention,preset proportional coefficients of the moving distance deviation coefficient and the humidity deviation coefficient, respectively, and +.>Are all greater than 0.
The invention has the technical effects and advantages that:
1. according to the invention, the notch is formed in the valve cover of the transformer, the movable structure is arranged above the valve cover of the transformer and comprises the fixing frame, the telescopic rod, the fixing block, the rotating shaft, the ferrule and the aluminum strip which are arranged below the fixing frame, the device connected below the fixing frame is directly inserted into the transformer through the notch, the telescopic rod base, the connecting shaft, the motor, the controller and the motor base which are connected above the fixing frame, when the fixing frame is fixed on the upper surface of the top cover of the transformer through screws, the notch can be perfectly covered, the device below the fixing frame is arranged inside the transformer, the device above the fixing frame is arranged at the top of the valve cover, so that the transformer is sealed, the tightness is good, dust cannot enter the transformer due to gaps in the top cover in the using process of the transformer, and accidents of the transformer caused by the dust are prevented;
2. according to the invention, by starting the motor, each telescopic rod moves independently, the position and angle of the aluminum strip are flexibly changed along with the moving distance of the telescopic rod, the aluminum strip penetrates through the ferrule and is fixed on the ferrule, when each end of the aluminum strip moves, the rotating shaft rotates along with the movement of the aluminum strip, so that the ferrule rotates, the aluminum strip is not damaged, the aluminum strip is not broken, and meanwhile, the position and angle of the aluminum strip are flexibly adjusted, so that the aluminum strip is simple and efficient;
3. when the aluminum strip needs to be replaced or maintained, only the transformer is needed to be suspended at the moment, then the whole moving structure is directly extracted from the inside of the transformer through the notch by unscrewing the screw of the fixing frame, and then maintenance is carried out; or after the aluminum strip which has failed is extracted, a new moving structure is directly installed at the moment; compared with the traditional maintenance replacement of the transformer aluminum strip, the method does not need complex and precise disassembly and replacement procedures;
4. the aluminum strip is fixed through the ferrule, belongs to the state of being directly inserted into the transformer and is in a suspended state, and compared with the traditional method of fastening the aluminum strip on the side wall of the transformer oil tank in a welding mode, the method has less structural influence on the side wall of the transformer oil tank, and because the side wall of the oil tank is not required to be welded, the thermal influence and structural deformation possibly caused to the oil tank are reduced;
5. according to the invention, the influence coefficient is generated by collecting the moving distance deviation coefficient and the humidity deviation coefficient, and is compared with the preset influence coefficient threshold value, if the influence coefficient is smaller than the preset influence coefficient threshold value, the moving distance of the aluminum strip at the moment is proved to be more accurate, the magnetic leakage reduction effect of the whole transformer is better, no change is needed at the moment, and the angle of the aluminum strip after moving is kept; if the influence coefficient is larger than the preset influence coefficient threshold value, the fact that the magnetic leakage of the transformer is serious is proved, the transformer gives an alarm at the moment, and in order to reduce the magnetic leakage of the transformer, the moving distance of the aluminum strips needs to be continuously adjusted until the transformer does not give an alarm any more, and the fact that the magnetic leakage of the transformer at the moment is minimum is proved, and loss is reduced.
Drawings
For the convenience of those skilled in the art, the present invention will be further described with reference to the accompanying drawings;
fig. 1 is a schematic structural diagram of an energy-efficient power transformer according to the present invention;
FIG. 2 is a top view of the present invention;
FIG. 3 is a view showing a state in which the aluminum bar is not moved;
FIG. 4 is a view showing a state of use in which the aluminum bar is moved;
fig. 5 is a system block diagram of an energy efficient power transformer according to the present invention.
In the figure: 1. a transformer body; 2. a moving structure; 21. a fixing frame; 22. a telescopic rod base; 23. a connecting shaft; 24. a telescopic rod; 25. a fixed block; 26. a rotating shaft; 27. a ferrule; 28. an aluminum strip; 29. a motor; 3. a motor base; 4. a controller; 5. and the movement and distance information acquisition module.
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.
Example 1:
as shown in fig. 1-4, an energy-efficient power transformer comprises a transformer body 1, wherein a moving structure 2, a moving and distance information acquisition module 5 and a controller 4 are arranged at the top of the transformer body 1; the movable structure 2 further comprises a plurality of fixing frames 21, the fixing frames 21 are fixed on the transformer top cover through screws, the top of each fixing frame 21 is fixedly connected with a plurality of telescopic rod bases 22 and a movable and distance information acquisition module 5, the top ends of the telescopic rod bases 22 are fixedly connected with one ends of connecting shafts 23, the other ends of the connecting shafts 23 are fixedly connected with motors 29, one sides of the motors 29 are provided with controllers 4, the motors 29 are connected with the bottom ends of the controllers 4 through screws, and the motor bases 3 are fixed on the transformer top cover through screws. The movable structure 2 further comprises a plurality of telescopic rods 24, the bottoms of the telescopic rods 24 are fixedly connected with the bottoms of the telescopic rod bases 22, fixing blocks 25 are fixedly connected to the tops of the telescopic rods 24, rotating shafts 26 are arranged on the inner surfaces of the fixing blocks 25, ferrules 27 are arranged on the top ends of the rotating shafts 26, and aluminum strips 28 penetrate through the ferrules 27 and are fixed to the ferrules 27.
The operation principle of the device is as follows: as shown in fig. 1-4, the fixing frame 21 is fixed on the top cover of the transformer through screws, a notch is arranged on the top cover of the transformer, a telescopic rod 24, a fixing block 25, a rotating shaft 26, a ferrule 27 and an aluminum strip 28 are arranged below the fixing frame 21, a device connected below the fixing frame 21 is directly inserted into the transformer through the notch, then a telescopic rod base 22, a connecting shaft 23, a motor 29, a controller 4 and a motor base 3 connected above the fixing frame 21 are all fixed above the top cover of the transformer, and the fixing frame 21 can perfectly cover the notch when being fixed on the upper surface of the top cover of the transformer through screws, so that the notch is closed, the sealing performance is good, dust cannot enter the transformer due to the fact that the gap appears in the top cover in the using process of the transformer, and accidents caused by the dust are prevented;
in addition, when the device connected below the fixing frame 21 is directly inserted into the transformer through the notch, and the transformer starts to work, the motor 29 is directly started at the moment, so that the telescopic rods 24 move up and down, each telescopic rod 24 independently operates, in the moving process, the aluminum strips 28 flexibly change positions and angles along with the moving distance of the telescopic rods 24, the aluminum strips 28 penetrate through the ferrules 27 and are fixed on the ferrules 27, when each end of the aluminum strips 28 moves, the rotating shaft 26 rotates along with the movement of the aluminum strips 28, the ferrules 27 rotate, the aluminum strips 28 are not damaged, the aluminum strips 28 are not broken, and meanwhile, the positions and angles of the aluminum strips 28 are flexibly adjusted, so that the aluminum transformer is simple and efficient;
in addition, due to the long-time use of the aluminum strip 28, the temperature and humidity inside the transformer, the material quality of the aluminum strip and the like, the performance of the aluminum strip 28 for reducing magnetic leakage in the transformer is reduced, and the transformer may need to be replaced or maintained, and only the transformer is needed to be suspended at the moment, and then the whole movable structure 2 is directly extracted from the inside of the transformer through the notch by unscrewing the screw of the fixing frame 21, and then maintained; or after the aluminum strip 28 which has failed is extracted, a new moving structure 2 is directly installed at the moment; compared with the traditional maintenance replacement of the transformer aluminum strip 28, the method does not need complex and precise disassembly and replacement procedures;
in addition, the aluminum strip 28 is fixed through the ferrule 27, belongs to the field of direct insertion into the transformer and is in a suspended state, and compared with the traditional method of fastening the aluminum strip 28 on the side wall of the transformer oil tank in a welding mode, the method has less structural influence on the side wall of the transformer oil tank, and because the side wall of the oil tank is not required to be welded, the thermal influence and structural deformation possibly caused to the oil tank are reduced.
Example 2:
as described in embodiment 1, the moving mechanism 2 is directly arranged so that the aluminum strip 28 is directly inserted into the interior of the transformer, and the design can significantly reduce the downtime of the transformer; this design allows for quicker replacement work than the aluminum strips 28 welded to the tank surface, which reduces the steps required to weld, reduces the complexity that may be involved in the maintenance process, and also reduces the risk of damaging the tank surface; meanwhile, the position and the angle of the aluminum strips 28 are adjusted according to specific requirements by adjusting the position and the angle of the aluminum strips 28, so that the constraint and the flow direction of a magnetic field are optimized, and the possibility of magnetic leakage is reduced; however, in the actual operation process of the transformer, even if the position and angle of the aluminum strip 28 are adjusted, a very serious magnetic leakage phenomenon exists, or the magnetic leakage reduction effect does not reach the effect expected by staff, in order to reduce the magnetic leakage of the transformer, the position and angle of the aluminum strip 28 are required to be adjusted secondarily, so that the optimal adjustment effect is achieved, and the magnetic leakage of the transformer is reduced;
the specific operation is as follows:
the high-energy-efficiency power transformer comprises an acquisition module, a processing module, a comparison module, an early warning module and an adjusting module;
the acquisition module is used for acquiring self parameter information and external environment information of the transformer in the process of reducing magnetic leakage, and transmitting the self parameter information and the external environment information to the processing module after acquisition;
the self parameter information comprises a moving distance deviation coefficient, and after acquisition, the acquisition module calibrates the moving distance deviation coefficient asThe external environment information comprises humidity deviation coefficient, after acquisition,the acquisition module calibrates the humidity deviation coefficient to be +.>；
The processing module is used for comprehensively processing the parameter information of the transformer and the external environment information in the process of reducing the magnetic leakage, establishing a data processing model and generating an influence coefficientTransmitting the influence coefficient to a comparison module;
contrast module, will influence the coefficientWith a predetermined influence coefficient threshold value->And comparing, generating an early warning signal according to a comparison result, transmitting the signal to an early warning module, and generating or not generating an early warning prompt through the early warning module.
The adjusting module is used for continuously adjusting the position and the angle of the aluminum strip 28 according to the early warning signal generated by the early warning module until no alarm is emitted any more;
the method comprises the following specific steps:
coefficient of displacement deviation: refers to the difference between the actual moving distance and the pre-designed moving distance of the aluminum strip 28 during the moving process; the two ends of the aluminum strip 28 move independently, so that the angle of the aluminum strip 28 in the transformer is changed, and the magnetic leakage phenomenon of the transformer is reduced; in the process of moving the aluminum strip 28, there is an optimal position, when the aluminum strip 28 moves to the position, the angle of the aluminum strip 28 presents an optimal state, the angle makes the magnetic leakage effect of the transformer minimized, the moving distance is a preset moving distance, if the aluminum strip 28 does not move in place, or the moving distance is too much, the optimal moving distance is not reached, the risk of magnetic leakage of the transformer may be increased, so that the following effects are caused:
the magnetic field is not constrained enough: if the aluminum strips 28 are not moved in place or the movement distance is too large, insufficient magnetic field restraint may be caused, so that the magnetic field diffuses into the space around the transformer, and the magnetic leakage risk is increased.
Unstable magnetic field distribution: too large a shift deviation may result in unstable magnetic field distribution, and some area magnetic fields may be too concentrated or spread, increasing the possibility of magnetic leakage.
Poor magnetic field control: excessive deviation may limit effective control of the magnetic field, affect the confinement effect, and increase the risk of magnetic leakage problems.
The risk of magnetic leakage increases: if the aluminum strips 28 are moved too far apart, the risk of leakage of the transformer may increase, especially if the magnetic field is not properly constrained.
It is therefore important to ensure that the actual travel distance of the aluminum strip 28 is consistent with the intended travel distance;
the acquisition logic of the deviation coefficient of the moving distance is as follows:
the actual moving distance and the preset moving distance of the aluminum strip 28 are obtained and marked asAnd->；
Calculating a moving distance deviation coefficient, wherein the calculating formula is as follows:wherein->Is a coefficient of displacement distance deviation.
From the calculated expression, the larger the displacement distance deviation coefficient is, the higher the risk of magnetic leakage of the transformer is, the poorer the stability and safety of the operation of the transformer are, the greater the possibility of adjusting the displacement distance of the aluminum strip 28 is, and the coefficient is affectedThe larger the size; the smaller the deviation coefficient of the moving distance is, the lower the risk of magnetic leakage of the transformer is, and the transformation isThe higher the stability and safety of the operation of the machine, the less the possibility of needing to adjust the displacement distance of the aluminium strip 28, the influence coefficient +.>The smaller the size;
it should be noted that, the preset moving distance of the aluminum bar 28 may be obtained according to the previous data of the work log; the actual moving distance of the aluminum strip 28 can be obtained through a moving distance information collecting module 5, and the moving distance information collecting module 5 comprises a displacement sensor, a laser distance meter, an ultrasonic sensor, a magnetic encoder, a capacitance sensor and the like, and is selected according to the use situation when the aluminum strip is specifically used, so that the aluminum strip is not specifically limited.
Humidity deviation coefficient: refers to the difference between the humidity in the external environment and the preset humidity range in the using process of the transformer; this predetermined humidity range refers to the optimum position of the aluminum strip 28, and the optimum magnetic leakage reduction effect can be achieved by adding the ambient humidity; when the outside humidity is in the humidity range and the aluminum strip 28 moves to the optimal position, the magnetic leakage reduction effect of the whole transformer reaches the maximum; it should be noted that, in an actual usage scenario, when testing and verifying to determine that the aluminum strip 28 in the transformer moves to an optimal position, the optimal humidity range around the transformer is determined, and performance data and results of the transformer for reducing the magnetic leakage effect under different humidity are collected and analyzed by testing in a real environment, so as to find the optimal humidity range; in addition, when the transformer is in actual use, the humidity in the external environment can be acquired through the humidity information acquisition module, and the humidity information acquisition module comprises a resistance humidity sensor, a capacitance humidity sensor, an electrolysis humidity sensor, an optical humidity sensor, an ultrasonic humidity sensor and the like, and is selected according to the use situation when the transformer is in use, so that the transformer is not particularly limited.
If the deviation between the actual humidity in the external air and the preset humidity range is too large, the following effects may be caused by the reduced magnetic leakage of the transformer:
insulation performance decreases: changes in humidity may affect the performance of the insulating material. Too high a humidity may cause the insulation material to absorb moisture, thereby affecting its insulation properties and increasing the risk of insulation breakdown.
The magnetic field is not constrained enough: high humidity may cause the insulating material to absorb moisture, so that the insulating properties are degraded, which may affect the confinement of the magnetic field in the transformer, resulting in the diffusion of the magnetic field. This may increase the risk of reducing leakage flux, affecting the performance of the transformer.
Corrosion of metal parts: under high humidity conditions, metal components may be more susceptible to oxidation and corrosion, which may affect the reliability and life of the transformer.
Magnetic permeability change: changes in humidity may affect the permeability of the humidity sensitive material, affecting the magnetic properties in the transformer.
The stability of the device decreases: the humidity change inside the transformer may cause the stability of the device to decrease, affecting its normal operation.
Therefore, when the deviation between the humidity of the transformer in actual operation and the preset humidity range is too large, the moving distance of the aluminum strip 28 needs to be continuously adjusted, so that the deflection angle of the aluminum strip 28 is matched with the external humidity to achieve the optimal effect of reducing magnetic leakage;
the acquisition logic of the humidity deviation coefficient is as follows:
an optimal humidity range corresponding to the aluminum strip 28 when the aluminum strip moves to the original preset optimal distance is obtained and marked as the rangeAnd->；
Acquiring the humidity of the transformer in the actual operation process and marking asAnd calculating a humidity deviation coefficient;
and calculating a humidity deviation coefficient, wherein the expression is as follows:
if it isIs greater than->The calculation formula is as follows: />If->Less than->The calculation formula is as follows: />Wherein->Is the humidity deviation coefficient;
from the calculated expression, the larger the humidity deviation coefficient is, the higher the risk of leakage of the transformer is, the worse the stability and safety of the transformer operation are, the greater the possibility of adjusting the moving distance of the aluminum bar 28 is, and the coefficient is affectedThe larger the size; the smaller the humidity deviation coefficient, the lower the risk of leakage of the transformer, the higher the stability and safety of the transformer operation, the smaller the possibility of adjusting the moving distance of the aluminum strip 28, the influence coefficient +.>The smaller.
Example 3:
the acquired deviation coefficient of the moving distanceAnd humidity deviation coefficient>Performing comprehensive treatment, and establishing treatment model to generate influence coefficient +.>The expression is:
；
in the method, in the process of the invention,preset proportional coefficients of the moving distance deviation coefficient and the humidity deviation coefficient, respectively, and +.>Are all greater than 0;
influence coefficient to be generatedWith a predetermined influence coefficient threshold value->For comparison, if the influence coefficient +.>Less than a predetermined influence coefficient threshold +.>The fact that the moving distance of the aluminum strip 28 is accurate at the moment proves that the magnetic leakage reduction effect of the whole transformer is good, the aluminum strip 28 does not need to be changed at the moment, and the moving angle of the aluminum strip 28 is maintained; if influence coefficient->Greater than a predetermined influence coefficient threshold value +.>The leakage of the transformer is proved to be serious, the transformer sends out an alarm, and in order to reduce the leakage of the transformer, the moving distance of the aluminum strips 28 needs to be continuously adjusted until the transformer does not send out an alarm any more, so that the leakage of the transformer is proved to be minimum, and the loss is reduced.
The above formulas are all formulas with dimensions removed and numerical values calculated, the formulas are formulas with a large amount of data collected for software simulation to obtain the latest real situation, and preset parameters in the formulas are set by those skilled in the art according to the actual situation.
It should be understood that, in various embodiments of the present application, the sequence numbers of the foregoing processes do not mean the order of execution, and the order of execution of the processes should be determined by the functions and internal logic thereof, and should not constitute any limitation on the implementation process of the embodiments of the present application.
Those of ordinary skill in the art will appreciate that the various illustrative elements and algorithm steps described in connection with the embodiments disclosed herein may be implemented as electronic hardware, or combinations of computer software and electronic hardware. Whether such functionality is implemented as hardware or software depends upon the particular application and design constraints imposed on the solution. Skilled artisans may implement the described functionality in varying ways for each particular application, but such implementation decisions should not be interpreted as causing a departure from the scope of the present application.
In the several embodiments provided in the present application, it should be understood that the disclosed systems, apparatuses, and methods may be implemented in other manners. For example, the apparatus embodiments described above are merely illustrative, e.g., the division of the units is merely a logical function division, and there may be additional divisions when actually implemented, e.g., multiple units or components may be combined or integrated into another system, or some features may be omitted or not performed. Alternatively, the coupling or direct coupling or communication connection shown or discussed with each other may be an indirect coupling or communication connection via some interfaces, devices or units, which may be in electrical, mechanical or other forms.
The units described as separate units may or may not be physically separate, and units shown as units may or may not be physical units, may be located in one place, or may be distributed on a plurality of network units. Some or all of the units may be selected according to actual needs to achieve the purpose of the solution of this embodiment.
In addition, each functional unit in each embodiment of the present application may be integrated in one processing unit, or each unit may exist alone physically, or two or more units may be integrated in one unit.
The foregoing is merely specific embodiments of the present application, but the scope of the present application is not limited thereto, and any person skilled in the art can easily think about changes or substitutions within the technical scope of the present application, and the changes and substitutions are intended to be covered by the scope of the present application. Therefore, the protection scope of the present application shall be subject to the protection scope of the claims.
Claims (7)
1. The utility model provides a high energy efficiency power transformer, includes transformer body (1), its characterized in that: the top of the transformer body (1) is provided with a moving structure (2), a moving and distance information acquisition module (5) and a controller (4);
moving structure (2): the telescopic aluminum bar comprises a plurality of motors (29), a plurality of telescopic rods (24) and a plurality of aluminum bars (28), wherein the motors (29) are started to drive the telescopic rods (24) to stretch so that the aluminum bars (28) move to change the positions and angles of the aluminum bars;
movement and distance information acquisition module (5): for acquiring the actual movement distance of the telescopic rod (24);
the controller (4) analyzes the output signal of the movement and distance information acquisition module (5) and controls the telescopic distance of the telescopic rod (24) to adjust the position and angle of the aluminum strip (28).
2. An energy efficient power transformer as defined in claim 1, wherein: the mobile structure (2) further comprises a plurality of fixing frames (21), the fixing frames (21) are fixed on the top cover of the transformer through screws, a plurality of telescopic rod bases (22) are fixedly connected to the top of the fixing frames (21) and are fixedly connected with one ends of connecting shafts (23), motors (29) are fixedly connected to the other ends of the connecting shafts (23), one side of each motor (29) is provided with a controller (4), the bottom ends of the motors (29) and the controllers (4) are connected with motor bases (3), and the motor bases (3) are fixed on the top cover of the transformer through screws.
3. An energy efficient power transformer as defined in claim 2, wherein: the movable structure (2) further comprises a plurality of telescopic rods (24), the bottoms of the telescopic rods (24) are fixedly connected with the bottoms of the telescopic rod bases (22), fixing blocks (25) are fixedly connected to the tops of the telescopic rods (24), rotating shafts (26) are arranged on the inner surfaces of the fixing blocks (25), ferrules (27) are arranged on the tops of the rotating shafts (26), and aluminum strips (28) penetrate through the ferrules (27) and are fixed to the ferrules (27).
4. A high energy efficiency power transformer as defined in claim 3, wherein: the controller comprises an acquisition module, a processing module, a comparison module, an early warning module and an adjusting module;
the acquisition module is used for acquiring self parameter information and external environment information of the transformer in the process of reducing magnetic leakage, and transmitting the self parameter information and the external environment information to the processing module after acquisition;
the self parameter information comprises a moving distance deviation coefficient, and after the external environment information comprises a humidity deviation coefficient, the acquisition module respectively records the moving distance deviation coefficient and the humidity deviation coefficient asAnd->；
The processing module is used for comprehensively processing the parameter information of the transformer and the external environment information in the process of reducing the magnetic leakage, establishing a data processing model and generating an influence coefficientTransmitting the influence coefficient to a comparison module;
contrast module, will influence the coefficientWith a predetermined influence coefficient threshold value->Comparing, generating an early warning signal according to a comparison result, transmitting the signal to an early warning module, and generating or not generating an early warning prompt through the early warning module;
and the adjusting module is used for continuously adjusting the position and the angle of the aluminum strip (28) according to the early warning signal generated by the early warning module until no alarm is emitted.
5. An energy efficient power transformer as defined in claim 4, wherein: the acquisition logic of the moving distance deviation coefficient is as follows:
the actual moving distance and the preset moving distance of the aluminum strip (28) are obtained and marked asAnd->；
Calculating a moving distance deviation coefficient, wherein the calculating formula is as follows:wherein->Is a coefficient of displacement distance deviation.
6. An energy efficient power transformer as defined in claim 5, wherein: the acquisition logic of the humidity deviation coefficient is as follows:
acquiring an optimal humidity range corresponding to the aluminum strip (28) when the aluminum strip moves to the preset optimal distance, and marking the range asAnd->；
Acquiring the humidity of the transformer in the actual operation process and marking asAnd calculating a humidity deviation coefficient;
and calculating a humidity deviation coefficient, wherein the expression is as follows:
if it isIs greater than->The calculation formula is as follows: />If->Less than->The calculation formula is as follows: />Wherein->Is the humidity deviation coefficient.
7. An energy efficient power transformer as defined in claim 6, wherein: the influence coefficientThe acquisition logic of (1) is:
the acquired deviation coefficient of the moving distanceAnd humidity deviation coefficient>Performing comprehensive treatment, and establishing treatment model to generate influence coefficient +.>The expression is:
；
in the method, in the process of the invention,preset proportional coefficients of the moving distance deviation coefficient and the humidity deviation coefficient, respectively, and +.>Are all greater than 0.
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