CN117574640A - Transformer structure determining method and device and computer equipment - Google Patents
Transformer structure determining method and device and computer equipment Download PDFInfo
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Abstract
The present application relates to a transformer structure determination method, apparatus, computer device, computer readable storage medium and computer program product. The method comprises the steps of obtaining basic voltage regulation parameters of the transformer, obtaining different working states of the transformer based on the basic voltage regulation parameters, applying analog voltage load to the transformer in each working state, calculating voltage parameters and safety coefficients in each working state, and determining the structure of the transformer according to the voltage parameters and the safety coefficients. By applying the simulated voltage load to the transformer to perform lightning stroke simulation, the voltage parameters and the safety coefficients of the transformer in different working states are calculated, the structure of the transformer is determined based on the voltage parameters and the safety coefficients, the lightning stroke resistance of the transformer is improved, the reliability of the transformer can be improved, and the transformer can stably run.
Description
Technical Field
The present application relates to the field of transformers, and in particular, to a method, an apparatus, a computer device, a computer readable storage medium, and a computer program product for determining a transformer structure.
Background
The natural ester oil has the advantages of high ignition point, degradability and high cooling effect, and the power transformer taking the natural ester oil as a cooling and insulating medium is more environment-friendly and safer, and is more widely applied to new energy power grids.
However, as a novel insulating medium power transformer, the surge voltage distribution under lightning impulse is different from that of the traditional transformer, especially the transformer which realizes voltage regulation by multiple windings simultaneously, and the special insulating medium combines different winding structures, so that different surge voltage distribution conditions can be generated under lightning impulse. And the impact voltage is easy to damage the power transformer, which is unfavorable for the stable operation of the transformer.
Disclosure of Invention
In view of the foregoing, it is desirable to provide a transformer structure determining method, apparatus, computer device, computer readable storage medium, and computer program product that can improve the reliability of a transformer.
In a first aspect, the present application provides a method for determining a structure of a transformer, the method comprising:
obtaining basic voltage regulation parameters of a transformer;
obtaining different working states of the transformer based on the basic voltage regulation parameters;
applying an analog voltage load to the transformer in each working state, and calculating voltage parameters and safety coefficients in each working state;
and determining the structure of the transformer according to the voltage parameter and the safety coefficient.
In one embodiment, the basic voltage regulating parameter includes a voltage regulating mode and a winding characteristic, and the obtaining different working states of the transformer based on the basic voltage regulating parameter includes:
Obtaining a winding arrangement state based on the winding characteristics and the voltage regulation mode;
the tapping mode is adjusted according to the winding arrangement state, so that different working states of the transformer are obtained; and the tapping mode represents the connection state of a tapping switch and a winding in the transformer.
In one embodiment, the applying an analog voltage load to the transformer in each operating state includes:
determining the connection relation of the windings of the corresponding transformers according to the working states of the transformers;
the analog voltage loads are applied to different locations of the windings, respectively.
In one embodiment, after the analog voltage load is applied to the transformer in each working state and the voltage parameter and the safety coefficient in each working state are calculated, the method further includes:
applying a simulated working condition load to the transformer in each working state to obtain normal circuit parameters;
the determining the structure of the transformer according to the voltage parameter and the safety coefficient comprises the following steps:
and determining the structure of the transformer according to the normal circuit parameters, the voltage parameters and the safety coefficient.
In one embodiment, the determining the structure of the transformer according to the voltage parameter and the safety factor includes:
Determining the insulation safety of the transformer according to the voltage parameter and the rated voltage value;
and determining the structure of the transformer according to the insulation safety and the safety coefficient.
In one embodiment, after the structure of the transformer is determined according to the voltage parameter and the safety coefficient, the method further includes:
and determining the insulation structure of the transformer according to the safety coefficient and the preset safety requirement.
In a second aspect, the present application further provides a transformer structure determining apparatus, the apparatus including:
the input module is used for acquiring basic voltage regulation parameters of the transformer;
the analysis module is used for obtaining different working states of the transformer based on the basic voltage regulation parameters;
the impact simulation module is used for applying simulation voltage load to the transformer in each working state and calculating voltage parameters and safety coefficients in each working state;
and the screening module is used for determining the structure of the transformer according to the voltage parameter and the safety coefficient.
In a third aspect, the present application also provides a computer device comprising a memory and a processor, the memory storing a computer program, the processor implementing the following steps when executing the computer program:
Obtaining basic voltage regulation parameters of a transformer;
obtaining different working states of the transformer based on the basic voltage regulation parameters;
applying an analog voltage load to the transformer in each working state, and calculating voltage parameters and safety coefficients in each working state;
and determining the structure of the transformer according to the voltage parameter and the safety coefficient.
In a fourth aspect, the present application also provides a computer readable storage medium having stored thereon a computer program which when executed by a processor performs the steps of:
obtaining basic voltage regulation parameters of a transformer;
obtaining different working states of the transformer based on the basic voltage regulation parameters;
applying an analog voltage load to the transformer in each working state, and calculating voltage parameters and safety coefficients in each working state;
and determining the structure of the transformer according to the voltage parameter and the safety coefficient.
In a fifth aspect, the present application also provides a computer program product comprising a computer program which, when executed by a processor, performs the steps of:
obtaining basic voltage regulation parameters of a transformer;
obtaining different working states of the transformer based on the basic voltage regulation parameters;
Applying an analog voltage load to the transformer in each working state, and calculating voltage parameters and safety coefficients in each working state;
and determining the structure of the transformer according to the voltage parameter and the safety coefficient.
The method, the device, the computer equipment, the computer readable storage medium and the computer program product for determining the structure of the transformer comprise the steps of obtaining basic voltage regulation parameters of the transformer, obtaining different working states of the transformer based on the basic voltage regulation parameters, applying analog voltage load to the transformer in each working state, calculating the voltage parameters and the safety coefficients in each working state, and determining the structure of the transformer according to the voltage parameters and the safety coefficients. By applying the simulated voltage load to the transformer to perform lightning stroke simulation, the voltage parameters and the safety coefficients of the transformer in different working states are calculated, the structure of the transformer is determined based on the voltage parameters and the safety coefficients, the lightning stroke resistance of the transformer is improved, the reliability of the transformer can be improved, and the transformer can stably run.
Drawings
In order to more clearly illustrate the embodiments of the present application or the technical solutions in the related art, the drawings that are required to be used in the embodiments or the related technical descriptions will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present application, and other drawings may be obtained according to the drawings without inventive effort for a person having ordinary skill in the art.
FIG. 1 is an application environment diagram of a method for determining a structure of a transformer in one embodiment;
FIG. 2 is a flow chart of a method of determining a structure of a transformer in one embodiment;
FIG. 3 is a flowchart illustrating steps for obtaining different operating states of a transformer based on basic voltage regulation parameters according to an embodiment;
FIG. 4 is a schematic diagram of a winding arrangement of a transformer in one embodiment;
FIG. 5 is a schematic diagram of the operating state of the transformer in one embodiment;
FIG. 6 is a schematic diagram of the working state of the transformer in another embodiment;
FIG. 7 is a schematic diagram of the working state of the transformer in yet another embodiment;
FIG. 8 is a schematic diagram of the operating state of a transformer in yet another embodiment;
FIG. 9 is a schematic diagram of an embodiment of applying an analog voltage load;
FIG. 10 is a schematic diagram of an alternate embodiment of applying an analog voltage load;
FIG. 11 is a schematic diagram of an application of an analog voltage load in yet another embodiment;
FIG. 12 is a flow chart of a method for determining a structure of a transformer according to another embodiment;
FIG. 13 is a flow chart of a method for determining a structure of a transformer according to yet another embodiment;
FIG. 14 is a block diagram showing a structure of a transformer structure determining apparatus in one embodiment;
Fig. 15 is an internal structural view of a computer device in one embodiment.
Detailed Description
In order to make the objects, technical solutions and advantages of the present application more apparent, the present application will be further described in detail with reference to the accompanying drawings and examples. Embodiments of the present application are illustrated in the accompanying drawings, but the present application may be embodied in many different forms and are not limited to the embodiments described herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the present application.
It will be understood that the terms "first," "second," and the like, as used herein, may be used to describe various elements, but these elements are not limited by these terms. These terms are only used to distinguish one element from another element. For example, a first resistance may be referred to as a second resistance, and similarly, a second resistance may be referred to as a first resistance, without departing from the scope of the present application. Both the first resistor and the second resistor are resistors, but they are not the same resistor.
It is to be understood that in the following embodiments, "connected" is understood to mean "electrically connected", "communicatively connected", etc., if the connected circuits, modules, units, etc., have electrical or data transfer between them.
As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. It will be further understood that the terms "comprises" and/or "comprising," and/or the like, specify the presence of stated features, integers, steps, operations, elements, components, or groups thereof, but do not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components, or groups thereof. Also, the term "and/or" as used in this specification includes any and all combinations of the associated listed items.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used herein in the description of the application is for the purpose of describing particular embodiments only and is not intended to be limiting of the application.
The method for determining the structure of the transformer, provided by the embodiment of the application, can be applied to an application environment shown in fig. 1. The terminal 102 communicates with the server 104 through a communication network, and the terminal 102 may obtain transformer data of the server 104 through the communication network, which may be transformer related data such as a voltage regulation parameter of a transformer. The data storage system may store data that server 104 needs to process, including, but not limited to, transformer data. The data storage system may be integrated on the server 104 or may be located on a cloud or other network server. The data storage system may also be integrated on the terminal 102. When the data storage signal is integrated on the terminal 102, the terminal 102 does not need to obtain the transformer data through the server 104, and can directly obtain the transformer data on the data storage system. After the terminal acquires the transformer data, the transformer data is processed according to the transformer structure determining method provided by the embodiments of the application, and the transformer structure is determined, so that the transformer with higher reliability is obtained. The terminal 102 may be, but is not limited to, various personal computers, notebook computers, smart phones, and tablet computers. The server 104 may be implemented as a stand-alone server or as a server cluster of multiple servers.
In an exemplary embodiment, as shown in fig. 2, a method for determining a transformer structure is provided, and the method is applied to the terminal 102 in fig. 1, for example, and includes the following steps 202 to 208. Wherein:
step 202, obtaining basic voltage regulation parameters of a transformer.
The basic voltage regulating parameter of the transformer is one of transformer data, including, but not limited to, the model number or the structural characteristics of the transformer. The basic voltage regulating parameters can influence the voltage distribution condition and the voltage variation amplitude in the transformer, and exemplary basic voltage regulating parameters include the voltage regulating mode of the transformer, the winding characteristics of the transformer, the insulation characteristics of the transformer and the like. In particular, the insulation characteristics of the transformer, different insulation materials and insulation structures are adopted, which can affect the voltage distribution condition of the transformer. Along with the development of the technology level, the material science is increasingly advanced, various insulating materials are excavated, and the insulating material can be applied to a transformer to isolate windings in the transformer. The environment-friendly natural ester oil insulating material has the advantages of high ignition point, degradability and high cooling, and can improve the performance of the transformer. In the embodiments of the present application, unless otherwise specified, the insulating material used for the transformer in each embodiment may be considered to be a natural ester oil material.
Specifically, the terminal acquires basic voltage regulation parameters of the transformer, wherein the basic voltage regulation parameters can be transformer data corresponding to instructions sent by staff on the terminal, namely, the staff can select different transformer data to determine different basic voltage regulation parameters.
The basic voltage regulation parameters of the transformer include a voltage regulation mode, and the voltage regulation mode can be any one of constant magnetic flux on-load voltage regulation, constant magnetic flux off-load voltage regulation, constant magnetic flux linear voltage regulation, constant magnetic flux positive and negative voltage regulation, variable magnetic flux on-load voltage regulation, variable magnetic flux off-load voltage regulation, variable magnetic flux linear voltage regulation and variable magnetic flux positive and negative voltage regulation. The basic voltage regulation parameters of the transformer can also comprise winding characteristics, wherein the winding characteristics comprise a voltage regulation winding arrangement mode and the number of windings, the winding components are a low-voltage winding, a medium-voltage winding and a high-voltage winding, and the voltage regulation winding arrangement mode comprises any one or more of low-voltage regulation, medium-voltage regulation and high-voltage regulation. The number of windings may be optional, such as three windings.
Step 204, obtaining different working states of the transformer based on the basic voltage regulation parameters.
Specifically, the terminal analyzes according to the obtained basic voltage regulation parameters, performs operation in the terminal, and simulates different possible working states of the transformer with the basic voltage regulation parameters. The operating state includes, but is not limited to, a connection relationship of windings within the transformer, which is determined by an operating state of a tap changer of the transformer. The tapping switch has different gear, and when the tapping switch is in different gear, the relation of connection of the winding in the transformer is different.
Taking the operational state of the transformer including the connection relationship of windings in the transformer as shown in fig. 3 as an example, in one embodiment, the basic voltage regulation parameters include a voltage regulation manner and winding characteristics, and step 204 includes step 302 and step 304.
Step 302, obtaining a winding arrangement state based on the winding characteristics and the voltage regulation mode.
Wherein, as noted above, the winding characteristics include a voltage regulating winding arrangement and a winding number, wherein the winding components are low voltage windings, medium voltage windings, and high voltage windings, and the voltage regulating winding arrangement includes any one or more of low voltage regulation, medium voltage regulation, and high voltage regulation. The number of windings may be optional, such as three windings. The voltage regulating mode can be any one of constant magnetic flux on-load voltage regulation, constant magnetic flux off-load voltage regulation, constant magnetic flux linear voltage regulation, constant magnetic flux positive and negative voltage regulation, variable magnetic flux on-load voltage regulation, variable magnetic flux off-load voltage regulation, variable magnetic flux linear voltage regulation and variable magnetic flux positive and negative voltage regulation.
Specifically, the terminal can obtain the winding arrangement state of the transformer based on the winding characteristics and the voltage regulation mode. The winding arrangement state comprises a winding arrangement mode and winding arrangement positions, the terminal determines the winding arrangement mode according to the voltage regulation mode, and the terminal determines the winding arrangement positions according to the winding characteristics.
When the transformer is a three-winding, high-voltage and medium-voltage constant-flux positive and negative voltage regulating transformer, the voltage regulating mode obtained by the terminal is constant-flux positive and negative voltage regulating, the number of windings in the winding characteristics obtained by the terminal is three, and the voltage regulating winding is arranged in a high-voltage and medium-voltage regulating mode. The number of windings is three, and the winding arrangement mode is that the low-voltage winding, the medium-voltage winding and the high-voltage winding are sequentially arranged. The low-voltage winding comprises a low-voltage coil, and the medium-voltage winding comprises a medium-voltage coil and a medium-voltage regulating coil. The high-voltage winding comprises a high-voltage coil and a high-voltage regulating coil. The winding arrangement is shown in fig. 4, a represents the head end of the low-voltage winding (i.e., the head end of the low-voltage coil), am represents the head end of the medium-voltage winding (i.e., the end of the medium-voltage coil away from the medium-voltage regulator coil), and a represents the head end of the high-voltage winding (i.e., the end of the high-voltage coil away from the high-voltage regulator coil).
Step 304, the tapping mode is adjusted according to the winding arrangement state, and different working states of the transformer are obtained.
The tapping mode represents the connection state of a tapping switch and a winding in the transformer. The tapping switch is applied to tapping and conversion and connection of coil equipment, and the number of turns of a coil in a transformer can be further adjusted by changing connection of a tap and a winding in the tapping switch, so that the output voltage of the transformer is adjusted. In the present application, the different connection states of the tap changer and the winding of the transformer correspond to different working states of the transformer.
Specifically, after the winding arrangement state is obtained, the tapping modes of the transformer are different, and different working states are correspondingly obtained. The tapping mode can be adjusted by adjusting the connection position of the tapping switch and each coil in the winding, and for the winding arrangement state of the transformer shown in fig. 4, the tapping mode is adjusted. Because the transformer is a medium-voltage and high-voltage constant-magnetic-flux positive and negative voltage regulating transformer, the tapping mode is only adjusted for the medium-voltage winding and the high-voltage winding. And the tapping modes of the medium-voltage winding comprise a maximum tapping, a rated 1 tapping, a rated 2 tapping and a minimum tapping, and the tapping modes of the high-voltage winding comprise a maximum tapping, a rated 1 tapping, a rated 2 tapping and a minimum tapping.
The possible operating states of the resulting transformer are shown in fig. 5, 6, 7, 8, in which fig. 5 the medium voltage winding is maximally tapped and the high voltage winding is maximally tapped. In fig. 6, the medium voltage winding is rated 1 tap and the high voltage winding is rated 1 tap. In fig. 7, the medium voltage winding is rated for 2 taps and the high voltage winding is the minimum tap. In fig. 8, the medium voltage winding is the minimum tap and the high voltage winding is the rated 2 tap. It will be appreciated that for a three-winding, high-voltage, medium-voltage, constant-flux positive and negative-voltage regulating transformer, the operating state of the transformer is not limited to the four cases shown in fig. 5 to 8, and the tapping mode of the medium-voltage winding and the tapping mode of the high-voltage winding may be arbitrarily combined, and are not illustrated one by one. Optionally, the wiring mode is required to meet the relevant regulations of national standard GB 1094.3.
In this embodiment, the winding arrangement state is obtained according to the winding characteristics and the voltage regulation mode, and the tapping mode is regulated according to the winding arrangement state, so as to obtain different working states of the transformer. By obtaining the transformers in all working states, the reliability and the comprehensiveness of the transformer structure determining method are increased, and all working states of the transformers are fully considered.
Step 206, applying an analog voltage load to the transformer in each working state, and calculating the voltage parameter and the safety coefficient in each working state.
Wherein the simulated voltage load is used to simulate a lightning strike condition, typically a surge voltage. Because the environment that the transformer set up is changeable, and normally open air setting, then the transformer need set up certain anti lightning stroke performance, avoids because the work that the thunderbolt leads to is unusual, ensures power transmission's stability.
Specifically, in order to ensure the safety of the transformer, the structural defect of the transformer is avoided, the terminal applies analog voltage load to the transformer in various simulated working states, calculates voltage parameters and safety coefficients corresponding to the working states, analyzes the working conditions of the transformer in different working states, and avoids dangerous conditions. The voltage parameter may be, for example, a voltage distribution, that is, the voltage magnitude of each position of the transformer is detected, and the voltage magnitude is integrated into the voltage distribution by combining the positions. The safety coefficient can be obtained by analyzing the voltage and the insulation bearing voltage of the internal structure of the transformer, or can be determined according to the structure of the transformer, and represents the important level of protecting important devices in the transformer.
In one embodiment, step 206 applies an analog voltage load to the transformer in each operating state, including step 402 and step 404.
Step 402, determining connection relation of windings of the corresponding transformers according to the working states of the transformers.
Specifically, after the terminal obtains the working states of each transformer, the terminal is equivalent to storing a plurality of analog transformers respectively in different working states. And screening one of the analog transformers by the terminal to apply an analog voltage load, and determining the connection relation of the windings of the corresponding transformer according to the working state of the transformer. The screening basis can be selected according to the degree of usage, wherein the degree of usage refers to the frequency of usage of the transformers in various working states, and the higher the frequency of usage, the higher the degree of usage of the transformers in the working states.
The terminal determines the connection relation of the windings of the transformer, namely the connection relation of the tapping switch and the windings.
Step 404 applies an analog voltage load to the different locations of the windings, respectively.
Specifically, the mode of applying the analog voltage load is not limited, and the analog voltage load is applied to different positions of the winding of the transformer, so that the performance of the transformer can be comprehensively tested. For example, an analog voltage load may be applied to the leading end of the winding, or to the trailing end of the winding. Illustratively, as shown in fig. 9, the winding is tapped in a medium voltage rated 1 tap, a high voltage rated 2 tap, and an analog voltage load is applied to the high voltage winding head end. As shown in fig. 10, the winding is tapped in a medium voltage maximum tap, a high voltage maximum tap, and an analog voltage load is applied to the head end of the medium voltage winding. As shown in fig. 11, the winding is tapped in a medium voltage maximum tap, a high voltage maximum tap, and an analog voltage load is applied to the low voltage winding tail. There are other situations where an analog voltage load is applied to the transformer, and this will not be described in detail here. The applied analog voltage load can also be selected according to the specification of national standard GB 1094.3.
In this embodiment, by applying the analog voltage load to different positions, simulating the extreme environmental extreme conditions, and testing different working states of the transformer, a large amount of experimental data of the transformer can be obtained, and the reliability of the transformer is improved.
And step 208, determining the structure of the transformer according to the voltage parameter and the safety coefficient.
Specifically, after the terminal calculates the voltage parameters and the safety coefficients corresponding to each working state, each voltage parameter and each safety coefficient are respectively compared and analyzed, and the structure of the transformer is determined by combining the voltage distribution condition and the safety coefficient. For example, when analyzing the voltage parameters and the safety coefficients of the transformer in different working states of the three-winding, high-voltage and medium-voltage constant-flux forward and reverse voltage regulating transformer, as shown in fig. 6, the working state in the tapping mode is the most average voltage distribution condition when the analog voltage load is applied, and the safety coefficient is the best, the structure of the transformer in the tapping mode can be determined to be the structure of the finally determined transformer.
In one embodiment, step 208 includes step 602 and step 604.
Step 602, determining insulation safety of the transformer according to the voltage parameter and the rated voltage value.
Specifically, the terminal can determine the insulation safety of the transformer according to the voltage parameter and the rated voltage value. And comparing the voltage value in the voltage parameter with the rated voltage value, and comparing the voltage value at the corresponding position with the rated voltage value if the rated voltage values at different positions in the transformer are different, wherein the voltage parameter comprises the voltage distribution condition. Insulation safety may be an analysis of voltage values within the voltage parameter versus rated voltage values, the insulation safety decreasing when the voltage values are greater than the rated step ratio of the rated voltage values. The insulation safety is lower as the rated step ratio is larger than the rated withstand voltage value. For example, the rated step ratio may be 50%/70%/90% with corresponding insulation safety being high/medium/low.
Step 604, determining the structure of the transformer according to the insulation safety and the safety coefficient.
Specifically, the structure of the transformer is determined according to the insulation safety and the safety coefficient, and according to the analysis of the insulation safety and the safety coefficient, the terminal can analyze the transformers in various working states, wherein the voltage values of all the positions meet the requirements or not, the working state of the transformer which meets the requirements most is screened out from the voltage values, and the structure of the transformer in the working state is used as the final determined structure of the transformer.
The method for determining the structure of the transformer comprises the steps of obtaining basic voltage regulation parameters of the transformer, obtaining different working states of the transformer based on the basic voltage regulation parameters, applying analog voltage load to the transformer in each working state, calculating the voltage parameters and the safety coefficients in each working state, and determining the structure of the transformer according to the voltage parameters and the safety coefficients. By applying the simulated voltage load to the transformer to perform lightning stroke simulation, the voltage parameters and the safety coefficients of the transformer in different working states are calculated, the structure of the transformer is determined based on the voltage parameters and the safety coefficients, the lightning stroke resistance of the transformer is improved, the reliability of the transformer can be improved, and the transformer can stably run.
In one embodiment, as shown in fig. 12, step 206 is followed by step 502, and correspondingly step 208 includes step 504.
Step 502, applying a simulated working condition load to the transformer in each working state to obtain normal circuit parameters.
The simulated working condition load is the load loaded under the normal working condition of the transformer, and the simulated working condition load capable of carrying out power transmission is stable in value generally but long in duration. Therefore, the scheduled normal circuit parameters represent the circuit parameters of the transformer under normal operation, and have important significance for analyzing the operation of the transformer.
On the basis of testing the applicability of the transformer in extreme environments, the normal circuit parameters of the transformer under normal working conditions can be tested. Specifically, a simulated working condition load is applied to the transformer in a working state, the normal working environment of the transformer is simulated, and parameters of the transformer are recorded to obtain normal circuit parameters.
Step 504, determining the structure of the transformer according to the normal circuit parameters, the voltage parameters and the safety coefficient.
Specifically, after the terminal calculates the normal circuit parameters, the voltage parameters and the safety coefficients corresponding to each working state, respectively comparing and analyzing each normal circuit parameter, each voltage parameter and each safety coefficient, combining the normal circuit parameters and the voltage parameters under the analog voltage load, generating voltage distribution conditions under the normal working conditions, voltage distribution conditions under the extreme working conditions and the grades of the safety coefficients, and selecting the working state with the most balanced voltage distribution conditions and the highest grade of the safety coefficients in the voltage distribution conditions under the normal working conditions, the voltage distribution conditions under the extreme working conditions and the grades of the safety coefficients by taking the structure of the transformer under the working state as the final determined transformer structure.
In practical application, the working state with the most balanced voltage distribution condition and the working state with the highest safety coefficient level are not the same working state, and in the case, the working state with the most balanced voltage distribution condition is preferentially selected, and the working state with the higher safety coefficient is selected.
Meanwhile, as shown in fig. 13, in one embodiment, step 208 further includes step 702: and determining the insulation structure of the transformer according to the safety coefficient and the preset safety requirement.
When the working state with the most balanced voltage distribution condition and the working state with the highest level of the safety coefficient are not the same working state, the safety coefficient may be insufficient due to the fact that the working state with the most balanced voltage distribution condition is preferentially selected. The safety factor depends on the matching degree of the preset safety requirement and the insulation structure of the transformer, and when the preset safety requirement is higher and the insulation structure of the transformer has defects, the safety factor is lower. Therefore, the safety coefficient can be improved by adjusting the insulation structure of the transformer, so that the terminal can determine the insulation structure of the transformer according to the safety coefficient of the transformer and the preset safety requirement, and the applicability of the transformer is improved.
When a position with a lower safety coefficient exists in the determined transformer structure, the insulation structure of the transformer is adjusted according to the preset safety requirement of the position. For example, when the insulating structure of the transformer is made of natural ester oil, if the safety coefficient at a certain position is greater than the preset safety requirement, the natural ester oil at the position can be thickened to determine the insulating structure of the transformer.
In this embodiment, by changing the insulation structure of the transformer, the performance of the transformer can be improved, and the operation of the transformer can be stabilized and reliable.
In order to better understand the above solution, the following detailed explanation is made in connection with a specific embodiment in connection with the application scenario shown in fig. 1.
In one embodiment, the terminal is a computer, the computer obtains basic voltage regulation parameters of the transformer, obtains winding arrangement states based on winding characteristics and a voltage regulation mode, and adjusts a tapping mode according to the winding arrangement states to obtain different working states of the transformer. And determining the connection relation of windings of the corresponding transformers according to the working states of the transformers, respectively applying analog voltage loads to different positions of the windings, and calculating voltage parameters and safety coefficients under the working states.
The computer can determine the insulation safety of the transformer according to the voltage parameter and the rated voltage value, and determine the structure of the transformer according to the insulation safety and the safety coefficient. The structure of the transformer can be determined according to the normal circuit parameters, the voltage parameters and the safety coefficients.
After determining the structure of the transformer, the computer may also determine the insulation structure of the transformer according to the safety factor and a preset safety requirement.
In the embodiment, lightning stroke simulation is performed by applying the simulated voltage load to the transformer, the voltage parameters and the safety coefficients of the transformer in different working states are calculated, the structure of the transformer is determined based on the voltage parameters and the safety coefficients, the lightning stroke resistance of the transformer is improved, the reliability of the transformer can be improved, and the transformer can stably run. This example calculates how the transformer structure should be matched in a special structure where multiple windings are simultaneously achieving voltage regulation for a power transformer with natural ester oil as cooling and insulating medium. The structure determining method for comprehensively analyzing the natural ester oil transformer with the multi-winding voltage regulation is significant for guiding the structural design of the transformer and improving the operation reliability of the transformer.
It should be understood that, although the steps in the flowcharts related to the embodiments described above are sequentially shown as indicated by arrows, these steps are not necessarily sequentially performed in the order indicated by the arrows. The steps are not strictly limited to the order of execution unless explicitly recited herein, and the steps may be executed in other orders. Moreover, at least some of the steps in the flowcharts described in the above embodiments may include a plurality of steps or a plurality of stages, which are not necessarily performed at the same time, but may be performed at different times, and the order of the steps or stages is not necessarily performed sequentially, but may be performed alternately or alternately with at least some of the other steps or stages.
Based on the same inventive concept, the embodiment of the application also provides a transformer structure determining device for realizing the above-mentioned transformer structure determining method. The implementation of the solution provided by the device is similar to the implementation described in the above method, so the specific limitation in the embodiments of the device for determining a transformer structure provided below may be referred to the limitation of the method for determining a transformer structure hereinabove, and will not be repeated herein.
In an exemplary embodiment, as shown in fig. 14, there is provided a transformer structure determining apparatus including: an input module 802, an analysis module 804, an impact simulation module 806, and a screening module 808, wherein:
and an input module 802, configured to obtain a basic voltage regulation parameter of the transformer.
The analysis module 804 is configured to obtain different operating states of the transformer based on the basic voltage regulation parameters.
The impact simulation module 806 is configured to apply an analog voltage load to the transformer in each working state, and calculate a voltage parameter and a safety coefficient in each working state.
And the screening module 808 is used for determining the structure of the transformer according to the voltage parameters and the safety coefficient.
In one embodiment, the analysis module 804 is further configured to obtain a winding arrangement state based on the winding characteristics and the voltage regulation mode, and adjust the tapping mode according to the winding arrangement state to obtain different working states of the transformer. The tapping mode represents the connection state of a tapping switch and a winding in the transformer.
In one embodiment, the impact simulation module 806 is further configured to determine a connection relationship of windings of the corresponding transformer according to each transformer operating state, and apply the simulated voltage load to different positions of the windings.
In one embodiment, the transformer structure determining device further includes a normal state simulation module, configured to apply a simulated voltage load to the transformer in each working state after the impact simulation module 806 calculates the voltage parameter and the safety coefficient in each working state, and apply a simulated working condition load to the transformer in each working state to obtain a normal state circuit parameter. The screening module is also used for determining the structure of the transformer according to the normal circuit parameters, the voltage parameters and the safety coefficient.
In one embodiment, the screening module 808 is further configured to determine insulation safety of the transformer according to the voltage parameter and the rated voltage value, and determine the structure of the transformer according to the insulation safety and the safety factor.
In one embodiment, the transformer structure determining device further includes an insulation planning module, configured to determine an insulation structure of the transformer according to the safety factor and a preset safety requirement after the screening module 808 determines the structure of the transformer according to the voltage parameter and the safety factor.
The respective modules in the above-described transformer structure determining apparatus may be implemented in whole or in part by software, hardware, and a combination thereof. The above modules may be embedded in hardware or may be independent of a processor in the computer device, or may be stored in software in a memory in the computer device, so that the processor may call and execute operations corresponding to the above modules.
In an exemplary embodiment, a computer device, which may be a terminal, is provided, and an internal structure thereof may be as shown in fig. 15. The computer device includes a processor, a memory, an input/output interface, a communication interface, a display unit, and an input means. The processor, the memory and the input/output interface are connected through a system bus, and the communication interface, the display unit and the input device are connected to the system bus through the input/output interface. Wherein the processor of the computer device is configured to provide computing and control capabilities. The memory of the computer device includes a non-volatile storage medium and an internal memory. The non-volatile storage medium stores an operating system and a computer program. The internal memory provides an environment for the operation of the operating system and computer programs in the non-volatile storage media. The input/output interface of the computer device is used to exchange information between the processor and the external device. The communication interface of the computer device is used for carrying out wired or wireless communication with an external terminal, and the wireless mode can be realized through WIFI, a mobile cellular network, NFC (near field communication) or other technologies. The computer program is executed by a processor to implement a transformer structure determination method. The display unit of the computer device is used for forming a visual picture, and can be a display screen, a projection device or a virtual reality imaging device. The display screen can be a liquid crystal display screen or an electronic ink display screen, and the input device of the computer equipment can be a touch layer covered on the display screen, can also be a key, a track ball or a touch pad arranged on the shell of the computer equipment, and can also be an external keyboard, a touch pad or a mouse and the like.
It will be appreciated by those skilled in the art that the structure shown in fig. 15 is merely a block diagram of a portion of the structure associated with the present application and is not limiting of the computer device to which the present application is applied, and that a particular computer device may include more or fewer components than shown, or may combine certain components, or have a different arrangement of components.
In one exemplary embodiment, a computer device is provided comprising a memory and a processor, the memory having stored therein a computer program, the processor when executing the computer program performing the steps of:
obtaining basic voltage regulation parameters of a transformer;
obtaining different working states of the transformer based on the basic voltage regulating parameters;
applying an analog voltage load to the transformer in each working state, and calculating voltage parameters and safety coefficients in each working state;
and determining the structure of the transformer according to the voltage parameters and the safety coefficient.
In one embodiment, the processor when executing the computer program further performs the steps of:
and obtaining a winding arrangement state based on the winding characteristics and the voltage regulation mode, and regulating the tapping mode according to the winding arrangement state to obtain different working states of the transformer. The tapping mode represents the connection state of a tapping switch and a winding in the transformer.
In one embodiment, the processor when executing the computer program further performs the steps of:
and determining the connection relation of windings of the corresponding transformers according to the working states of the transformers, and respectively applying analog voltage loads to different positions of the windings.
In one embodiment, the processor when executing the computer program further performs the steps of:
and applying a simulated working condition load to the transformer in each working state to obtain a normal circuit parameter, and determining the structure of the transformer according to the normal circuit parameter, the voltage parameter and the safety coefficient.
In one embodiment, the processor when executing the computer program further performs the steps of:
and determining the insulation safety of the transformer according to the voltage parameter and the rated voltage value, and determining the structure of the transformer according to the insulation safety and the safety coefficient.
In one embodiment, the processor when executing the computer program further performs the steps of:
and determining the insulation structure of the transformer according to the safety coefficient and the preset safety requirement.
In one embodiment, a computer readable storage medium is provided having a computer program stored thereon, which when executed by a processor, performs the steps of:
obtaining basic voltage regulation parameters of a transformer;
Obtaining different working states of the transformer based on the basic voltage regulating parameters;
applying an analog voltage load to the transformer in each working state, and calculating voltage parameters and safety coefficients in each working state;
and determining the structure of the transformer according to the voltage parameters and the safety coefficient.
In one embodiment, the computer program when executed by the processor further performs the steps of:
and obtaining a winding arrangement state based on the winding characteristics and the voltage regulation mode, and regulating the tapping mode according to the winding arrangement state to obtain different working states of the transformer. The tapping mode represents the connection state of a tapping switch and a winding in the transformer.
In one embodiment, the computer program when executed by the processor further performs the steps of:
and determining the connection relation of windings of the corresponding transformers according to the working states of the transformers, and respectively applying analog voltage loads to different positions of the windings.
In one embodiment, the computer program when executed by the processor further performs the steps of:
and applying a simulated working condition load to the transformer in each working state to obtain a normal circuit parameter, and determining the structure of the transformer according to the normal circuit parameter, the voltage parameter and the safety coefficient.
In one embodiment, the computer program when executed by the processor further performs the steps of:
and determining the insulation safety of the transformer according to the voltage parameter and the rated voltage value, and determining the structure of the transformer according to the insulation safety and the safety coefficient.
In one embodiment, the computer program when executed by the processor further performs the steps of:
and determining the insulation structure of the transformer according to the safety coefficient and the preset safety requirement.
In one embodiment, a computer program product is provided comprising a computer program which, when executed by a processor, performs the steps of:
obtaining basic voltage regulation parameters of a transformer;
obtaining different working states of the transformer based on the basic voltage regulating parameters;
applying an analog voltage load to the transformer in each working state, and calculating voltage parameters and safety coefficients in each working state;
and determining the structure of the transformer according to the voltage parameters and the safety coefficient.
In one embodiment, the computer program when executed by the processor further performs the steps of:
and obtaining a winding arrangement state based on the winding characteristics and the voltage regulation mode, and regulating the tapping mode according to the winding arrangement state to obtain different working states of the transformer. The tapping mode represents the connection state of a tapping switch and a winding in the transformer.
In one embodiment, the computer program when executed by the processor further performs the steps of:
and determining the connection relation of windings of the corresponding transformers according to the working states of the transformers, and respectively applying analog voltage loads to different positions of the windings.
In one embodiment, the computer program when executed by the processor further performs the steps of:
and applying a simulated working condition load to the transformer in each working state to obtain a normal circuit parameter, and determining the structure of the transformer according to the normal circuit parameter, the voltage parameter and the safety coefficient.
In one embodiment, the computer program when executed by the processor further performs the steps of:
and determining the insulation safety of the transformer according to the voltage parameter and the rated voltage value, and determining the structure of the transformer according to the insulation safety and the safety coefficient.
In one embodiment, the computer program when executed by the processor further performs the steps of:
and determining the insulation structure of the transformer according to the safety coefficient and the preset safety requirement.
It should be noted that, the user information (including, but not limited to, user equipment information, user personal information, etc.) and the data (including, but not limited to, data for analysis, stored data, presented data, etc.) referred to in the present application are information and data authorized by the user or sufficiently authorized by each party, and the collection, use, and processing of the related data are required to meet the related regulations.
Those skilled in the art will appreciate that implementing all or part of the above described methods may be accomplished by way of a computer program stored on a non-transitory computer readable storage medium, which when executed, may comprise the steps of the embodiments of the methods described above. Any reference to memory, database, or other medium used in the various embodiments provided herein may include at least one of non-volatile and volatile memory. The nonvolatile Memory may include Read-Only Memory (ROM), magnetic tape, floppy disk, flash Memory, optical Memory, high density embedded nonvolatile Memory, resistive random access Memory (ReRAM), magnetic random access Memory (Magnetoresistive Random Access Memory, MRAM), ferroelectric Memory (Ferroelectric Random Access Memory, FRAM), phase change Memory (Phase Change Memory, PCM), graphene Memory, and the like. Volatile memory can include random access memory (Random Access Memory, RAM) or external cache memory, and the like. By way of illustration, and not limitation, RAM can be in the form of a variety of forms, such as static random access memory (Static Random Access Memory, SRAM) or dynamic random access memory (Dynamic Random Access Memory, DRAM), and the like. The databases referred to in the various embodiments provided herein may include at least one of relational databases and non-relational databases. The non-relational database may include, but is not limited to, a blockchain-based distributed database, and the like. The processors referred to in the embodiments provided herein may be general purpose processors, central processing units, graphics processors, digital signal processors, programmable logic units, quantum computing-based data processing logic units, etc., without being limited thereto.
The technical features of the above embodiments may be arbitrarily combined, and all possible combinations of the technical features in the above embodiments are not described for brevity of description, however, as long as there is no contradiction between the combinations of the technical features, they should be considered as the scope of the description.
The above examples only represent a few embodiments of the present application, which are described in more detail and are not to be construed as limiting the scope of the present application. It should be noted that it would be apparent to those skilled in the art that various modifications and improvements could be made without departing from the spirit of the present application, which would be within the scope of the present application. Accordingly, the scope of protection of the present application shall be subject to the appended claims.
Claims (10)
1. A method of determining a structure of a transformer, the method comprising:
obtaining basic voltage regulation parameters of a transformer;
obtaining different working states of the transformer based on the basic voltage regulation parameters;
applying an analog voltage load to the transformer in each working state, and calculating voltage parameters and safety coefficients in each working state;
and determining the structure of the transformer according to the voltage parameter and the safety coefficient.
2. The method of claim 1, wherein the base voltage regulation parameters include a voltage regulation manner and winding characteristics, and wherein the deriving the different operating states of the transformer based on the base voltage regulation parameters comprises:
obtaining a winding arrangement state based on the winding characteristics and the voltage regulation mode;
the tapping mode is adjusted according to the winding arrangement state, so that different working states of the transformer are obtained; and the tapping mode represents the connection state of a tapping switch and a winding in the transformer.
3. The method of claim 1, wherein applying an analog voltage load to the transformer in each operating state comprises:
determining the connection relation of the windings of the corresponding transformers according to the working states of the transformers;
the analog voltage loads are applied to different locations of the windings, respectively.
4. The method of claim 1, wherein the step of applying an analog voltage load to the transformer in each operating state, and calculating the voltage parameter and the safety factor in each operating state further comprises:
applying a simulated working condition load to the transformer in each working state to obtain normal circuit parameters;
The determining the structure of the transformer according to the voltage parameter and the safety coefficient comprises the following steps:
and determining the structure of the transformer according to the normal circuit parameters, the voltage parameters and the safety coefficient.
5. The method of claim 1, wherein said determining the structure of the transformer from the voltage parameter and the safety factor comprises:
determining the insulation safety of the transformer according to the voltage parameter and the rated voltage value;
and determining the structure of the transformer according to the insulation safety and the safety coefficient.
6. The method of claim 5, wherein after said determining the structure of the transformer based on the voltage parameter and the safety factor, further comprising:
and determining the insulation structure of the transformer according to the safety coefficient and the preset safety requirement.
7. A transformer structure determining apparatus, the apparatus comprising:
the input module is used for acquiring basic voltage regulation parameters of the transformer;
the analysis module is used for obtaining different working states of the transformer based on the basic voltage regulation parameters;
the impact simulation module is used for applying simulation voltage load to the transformer in each working state and calculating voltage parameters and safety coefficients in each working state;
And the screening module is used for determining the structure of the transformer according to the voltage parameter and the safety coefficient.
8. A computer device comprising a memory and a processor, the memory storing a computer program, characterized in that the processor implements the steps of the method of any of claims 1 to 6 when the computer program is executed.
9. A computer readable storage medium, on which a computer program is stored, characterized in that the computer program, when being executed by a processor, implements the steps of the method of any of claims 1 to 6.
10. A computer program product comprising a computer program, characterized in that the computer program, when being executed by a processor, implements the steps of the method of any of claims 1 to 6.
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| CN202311526871.2A CN117574640A (en) | 2023-11-16 | 2023-11-16 | Transformer structure determining method and device and computer equipment |
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| CN202311526871.2A CN117574640A (en) | 2023-11-16 | 2023-11-16 | Transformer structure determining method and device and computer equipment |
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