CN116305363A - Temperature field distribution calculation method and device, electronic equipment and medium - Google Patents

Temperature field distribution calculation method and device, electronic equipment and medium Download PDF

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CN116305363A
CN116305363A CN202310303876.2A CN202310303876A CN116305363A CN 116305363 A CN116305363 A CN 116305363A CN 202310303876 A CN202310303876 A CN 202310303876A CN 116305363 A CN116305363 A CN 116305363A
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target transformer
simulation calculation
field distribution
temperature field
model
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魏存良
罗威
潘文博
李志华
汪进锋
曹德发
罗海波
陈芳
李延宾
江伟奇
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Guangdong Power Grid Co Ltd
Meizhou Power Supply Bureau of Guangdong Power Grid Co Ltd
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Guangdong Power Grid Co Ltd
Meizhou Power Supply Bureau of Guangdong Power Grid Co Ltd
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Abstract

The invention discloses a method, a device, electronic equipment and a medium for calculating temperature field distribution, wherein the method comprises the following steps: obtaining a simulation calculation model corresponding to a target transformer, wherein the simulation calculation model is a two-dimensional axisymmetric model; and calculating the temperature field distribution of the target transformer based on the excitation signals processed by the target transformer and the simulation calculation model. According to the method, the calculation of the temperature field distribution is performed based on the two-dimensional axisymmetric simulation calculation model, so that the calculated amount of temperature calculation is reduced, and the operation speed is improved.

Description

一种温度场分布的计算方法、装置、电子设备及介质Calculation method, device, electronic equipment and medium for temperature field distribution

技术领域technical field

本发明涉及变压器温度分析技术领域,尤其涉及一种温度场分布的计算方法、装置、电子设备及介质。The invention relates to the technical field of transformer temperature analysis, in particular to a calculation method, device, electronic equipment and medium for temperature field distribution.

背景技术Background technique

电力变压器作为电力系统的核心设备之一,被广泛应用在各电压等级的电网中,其安全可靠运行是电力系统稳定运行的重要保障。其中,干式变压器具有运行效率高、可靠性强以及环境性能优越等特点,在配电网中所占的比重越来越大。而温升特性是反映干式变压器健康状态的重要指标,尤其是瞬态温升特性,可用于干式变压器过负荷能力的评估。As one of the core equipment of the power system, the power transformer is widely used in power grids of various voltage levels. Its safe and reliable operation is an important guarantee for the stable operation of the power system. Among them, dry-type transformers have the characteristics of high operating efficiency, strong reliability and superior environmental performance, and their proportion in the distribution network is increasing. The temperature rise characteristic is an important indicator to reflect the health status of dry-type transformers, especially the transient temperature rise characteristics, which can be used to evaluate the overload capacity of dry-type transformers.

现有温度场分布的计算方法主要采用数值计算法,且主要用于计算强制对流换热模式下的温度分布,计算量较大,进而运算速度较慢。The existing calculation method of temperature field distribution mainly adopts the numerical calculation method, and is mainly used to calculate the temperature distribution under the forced convection heat transfer mode, the calculation amount is large, and the calculation speed is relatively slow.

发明内容Contents of the invention

本发明提供了一种温度场分布的计算方法、装置、电子设备及介质,以减少温度计算的计算量,提高运算速度。The invention provides a calculation method, device, electronic equipment and medium for temperature field distribution, so as to reduce the calculation amount of temperature calculation and improve the calculation speed.

根据本发明的一方面,提供了一种温度场分布的计算方法,包括:According to an aspect of the present invention, a method for calculating temperature field distribution is provided, including:

获取目标变压器对应的仿真计算模型,所述仿真计算模型为二维轴对称模型;Obtaining a simulation calculation model corresponding to the target transformer, the simulation calculation model being a two-dimensional axisymmetric model;

基于所述目标变压器处理后的激励信号和所述仿真计算模型计算所述目标变压器的温度场分布。Calculate the temperature field distribution of the target transformer based on the processed excitation signal of the target transformer and the simulation calculation model.

根据本发明的另一方面,提供了一种温度场分布的计算装置,包括:According to another aspect of the present invention, a calculation device for temperature field distribution is provided, comprising:

获取模块,用于获取目标变压器对应的仿真计算模型,所述仿真计算模型为二维轴对称模型;An acquisition module, configured to acquire a simulation calculation model corresponding to the target transformer, where the simulation calculation model is a two-dimensional axisymmetric model;

计算模块,用于基于所述目标变压器处理后的激励信号和所述仿真计算模型计算所述目标变压器的温度场分布。A calculation module, configured to calculate the temperature field distribution of the target transformer based on the processed excitation signal of the target transformer and the simulation calculation model.

根据本发明的另一方面,提供了一种电子设备,所述电子设备包括:According to another aspect of the present invention, an electronic device is provided, and the electronic device includes:

至少一个处理器;以及at least one processor; and

与所述至少一个处理器通信连接的存储器;其中,a memory communicatively coupled to the at least one processor; wherein,

所述存储器存储有可被所述至少一个处理器执行的计算机程序,所述计算机程序被所述至少一个处理器执行,以使所述至少一个处理器能够执行本发明任一实施例所述的温度场分布的计算方法。The memory stores a computer program that can be executed by the at least one processor, and the computer program is executed by the at least one processor, so that the at least one processor can execute the method described in any embodiment of the present invention. Calculation method of temperature field distribution.

根据本发明的另一方面,提供了一种计算机可读存储介质,所述计算机可读存储介质存储有计算机指令,所述计算机指令用于使处理器执行时实现本发明任一实施例所述的温度场分布的计算方法。According to another aspect of the present invention, a computer-readable storage medium is provided, the computer-readable storage medium stores computer instructions, and the computer instructions are used to enable a processor to implement any of the embodiments of the present invention when executed. Calculation method of the temperature field distribution.

本发明实施例提供了一种温度场分布的计算方法、装置、电子设备及介质,所述方法包括:获取目标变压器对应的仿真计算模型,所述仿真计算模型为二维轴对称模型;基于所述目标变压器处理后的激励信号和所述仿真计算模型计算所述目标变压器的温度场分布。利用上述技术方案,通过基于二维轴对称的仿真计算模型进行温度场分布的计算,减少了温度计算的计算量,从而提高了运算速度。Embodiments of the present invention provide a calculation method, device, electronic equipment, and medium for temperature field distribution. The method includes: obtaining a simulation calculation model corresponding to the target transformer, and the simulation calculation model is a two-dimensional axisymmetric model; based on the Calculate the temperature field distribution of the target transformer using the processed excitation signal of the target transformer and the simulation calculation model. By using the above technical solution, the calculation of the temperature field distribution is performed through the simulation calculation model based on the two-dimensional axis symmetry, which reduces the calculation amount of the temperature calculation, thereby improving the calculation speed.

应当理解,本部分所描述的内容并非旨在标识本发明的实施例的关键或重要特征,也不用于限制本发明的范围。本发明的其它特征将通过以下的说明书而变得容易理解。It should be understood that the content described in this section is not intended to identify key or important features of the embodiments of the present invention, nor is it intended to limit the scope of the present invention. Other features of the present invention will be easily understood from the following description.

附图说明Description of drawings

为了更清楚地说明本发明实施例中的技术方案,下面将对实施例描述中所需要使用的附图作简单地介绍,显而易见地,下面描述中的附图仅仅是本发明的一些实施例,对于本领域普通技术人员来讲,在不付出创造性劳动的前提下,还可以根据这些附图获得其他的附图。In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings that need to be used in the description of the embodiments will be briefly introduced below. Obviously, the drawings in the following description are only some embodiments of the present invention. For those skilled in the art, other drawings can also be obtained based on these drawings without creative effort.

图1是根据本发明实施例一提供的一种温度场分布的计算方法的流程图;Fig. 1 is a flow chart of a method for calculating temperature field distribution according to Embodiment 1 of the present invention;

图2是根据本发明实施例二提供的一种温度场分布的计算方法的流程图;Fig. 2 is a flow chart of a method for calculating temperature field distribution according to Embodiment 2 of the present invention;

图3是根据本发明实施例二提供的一种平滑处理后的激励信号的示意图;FIG. 3 is a schematic diagram of a smoothed excitation signal provided according to Embodiment 2 of the present invention;

图4是根据本发明实施例二提供的另一种平滑处理后的激励信号的示意图;FIG. 4 is a schematic diagram of another smoothed excitation signal provided according to Embodiment 2 of the present invention;

图5是根据本发明实施例二提供的另一种温度场分布的计算方法的流程图;Fig. 5 is a flow chart of another method for calculating temperature field distribution according to Embodiment 2 of the present invention;

图6是根据本发明实施例二提供的一种几何模型的结构示意图;Fig. 6 is a schematic structural diagram of a geometric model provided according to Embodiment 2 of the present invention;

图7是根据本发明实施例二提供的一种目标变压器的温度场分布的示意图;7 is a schematic diagram of a temperature field distribution of a target transformer provided according to Embodiment 2 of the present invention;

图8是根据本发明实施例二提供的一种不同负载率下对比平均温升理论值和仿真值的结果示意图;Fig. 8 is a schematic diagram of the results of comparing the average temperature rise theoretical value and simulated value under different load rates according to Embodiment 2 of the present invention;

图9是根据本发明实施例三提供的一种温度场分布的计算装置的结构示意图;9 is a schematic structural diagram of a calculation device for temperature field distribution provided according to Embodiment 3 of the present invention;

图10是根据本发明实施例四提供的一种电子设备的结构示意图。FIG. 10 is a schematic structural diagram of an electronic device according to Embodiment 4 of the present invention.

具体实施方式Detailed ways

为了使本技术领域的人员更好地理解本发明方案,下面将结合本发明实施例中的附图,对本发明实施例中的技术方案进行清楚、完整地描述,显然,所描述的实施例仅仅是本发明一部分的实施例,而不是全部的实施例。基于本发明中的实施例,本领域普通技术人员在没有做出创造性劳动前提下所获得的所有其他实施例,都应当属于本发明保护的范围。In order to enable those skilled in the art to better understand the solutions of the present invention, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only It is an embodiment of a part of the present invention, but not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts shall fall within the protection scope of the present invention.

需要说明的是,本发明的说明书和权利要求书及上述附图中的术语“目标”、“原始”等是用于区别类似的对象,而不必用于描述特定的顺序或先后次序。应该理解这样使用的数据在适当情况下可以互换,以便这里描述的本发明的实施例能够以除了在这里图示或描述的那些以外的顺序实施。此外,术语“包括”和“具有”以及他们的任何变形,意图在于覆盖不排他的包含,例如,包含了一系列步骤或单元的过程、方法、系统、产品或设备不必限于清楚地列出的那些步骤或单元,而是可包括没有清楚地列出的或对于这些过程、方法、产品或设备固有的其它步骤或单元。It should be noted that the terms "target" and "original" in the specification and claims of the present invention and the above drawings are used to distinguish similar objects, and not necessarily used to describe a specific order or sequence. It is to be understood that the data so used are interchangeable under appropriate circumstances such that the embodiments of the invention described herein can be practiced in sequences other than those illustrated or described herein. Furthermore, the terms "comprising" and "having", as well as any variations thereof, are intended to cover a non-exclusive inclusion, for example, a process, method, system, product or device comprising a sequence of steps or elements is not necessarily limited to the expressly listed instead, may include other steps or elements not explicitly listed or inherent to the process, method, product or apparatus.

实施例一Embodiment one

图1是根据本发明实施例一提供的一种温度场分布的计算方法的流程图,本实施例可适用于对变压器的温度场分布进行计算的情况,该方法可以由温度场分布的计算装置来执行,该温度场分布的计算装置可以采用硬件和/或软件的形式实现,该温度场分布的计算装置可配置于电子设备中。Fig. 1 is a flow chart of a method for calculating the temperature field distribution according to Embodiment 1 of the present invention. This embodiment is applicable to the case of calculating the temperature field distribution of a transformer. The method can be calculated by a temperature field distribution computing device The calculation means of the temperature field distribution can be implemented in the form of hardware and/or software, and the calculation means of the temperature field distribution can be configured in electronic equipment.

可以认为的是,根据绝缘介质的不同,可以将变压器分为干式变压器和油浸式变压器。干式变压器具有运行效率高、可靠性强以及环境性能优越等特点,在配电网中所占的比重越来越大。据统计,干式变压器可以占到配电变压器的40%-50%,而温升特性是反映干式变压器健康状态的重要指标,特别是瞬态温升特性,可用于干式变压器过负荷能力的评估。It can be considered that transformers can be divided into dry-type transformers and oil-immersed transformers according to different insulating media. Dry-type transformers have the characteristics of high operating efficiency, strong reliability and superior environmental performance, and their proportion in the distribution network is increasing. According to statistics, dry-type transformers can account for 40%-50% of distribution transformers, and the temperature rise characteristics are important indicators to reflect the health status of dry-type transformers, especially the transient temperature rise characteristics, which can be used for the overload capacity of dry-type transformers evaluation of.

目前,常用的干式变温升求解方法主要有经验公式法、热电类比法、数值计算法等,其中,数值计算法能获得干式变压器的温度场分布。而现有采用数值计算求解干式变温度场分布的方法计算量大、计算速度慢,且大都用于强制对流换热模式下的稳态温升计算,而自然对流换热模式下的瞬态温升过程难以收敛,计算困难。At present, the commonly used methods for solving dry-type variable temperature rise mainly include empirical formula method, thermoelectric analogy method, numerical calculation method, etc. Among them, the numerical calculation method can obtain the temperature field distribution of dry-type transformer. However, the existing method of numerical calculation to solve the distribution of the dry variable temperature field has a large amount of calculation and a slow calculation speed, and most of them are used for the steady-state temperature rise calculation in the forced convection heat transfer mode, while the transient state temperature calculation method in the natural convection heat transfer mode The temperature rise process is difficult to converge and the calculation is difficult.

基于此,本发明实施例提出了一种适用于自然对流散热干式变压器的温度场分布的计算方法,以快速计算自然对流散热干式变压器瞬态过程中的温度分布。如图1所示,该方法包括:Based on this, the embodiment of the present invention proposes a calculation method suitable for the temperature field distribution of the natural convection heat dissipation dry-type transformer, so as to quickly calculate the temperature distribution of the natural convection heat dissipation dry-type transformer in the transient process. As shown in Figure 1, the method includes:

S110、获取目标变压器对应的仿真计算模型,所述仿真计算模型为二维轴对称模型。S110. Acquire a simulation calculation model corresponding to the target transformer, where the simulation calculation model is a two-dimensional axisymmetric model.

其中,目标变压器可以认为是需要计算温度分布的变压器;仿真计算模型可以是指目标变压器对应的模型,用于计算目标变压器瞬态过程中的温度分布,在本实施例中,仿真计算模型可以为二维轴对称模型。Among them, the target transformer can be considered as a transformer that needs to calculate the temperature distribution; the simulation calculation model can refer to the model corresponding to the target transformer, which is used to calculate the temperature distribution in the transient process of the target transformer. In this embodiment, the simulation calculation model can be 2D axisymmetric model.

具体的,本实施例可以首先获取目标变压器对应的仿真计算模型,以进行后续温度场分布的计算,获取仿真计算模型的方式不限,如可以根据计算温度分布时机的不同对应不同的获取方式,示例性的,可以在首次对目标变压器进行温度场分布计算时,先对目标变压器对应的仿真计算模型进行建立,然后对仿真计算模型进行获取;当计算目标变压器在后续时刻的温度场分布计算时,则可以直接对目标变压器的仿真计算模型进行获取。Specifically, in this embodiment, the simulation calculation model corresponding to the target transformer can be obtained first, so as to calculate the subsequent temperature field distribution, and the method of obtaining the simulation calculation model is not limited. Exemplarily, when calculating the temperature field distribution of the target transformer for the first time, the simulation calculation model corresponding to the target transformer can be established first, and then the simulation calculation model can be obtained; when calculating the temperature field distribution calculation of the target transformer at a subsequent time , then the simulation calculation model of the target transformer can be obtained directly.

在一个实施例中,所述获取目标变压器对应的仿真计算模型,包括:In one embodiment, the acquisition of the simulation calculation model corresponding to the target transformer includes:

确定所述目标变压器的几何模型,所述几何模型为所述目标变压器的主体结构部件对应的模型,所述主体结构部件包括铁芯和绕组;Determining a geometric model of the target transformer, the geometric model being a model corresponding to the main structural components of the target transformer, the main structural components including iron cores and windings;

根据材料参数和预设控制方程,对所述几何模型进行配置得到所述目标变压器对应的仿真计算模型。According to material parameters and preset control equations, the geometric model is configured to obtain a simulation calculation model corresponding to the target transformer.

几何模型可以是指目标变压器的主体结构部件对应的模型,用于表征目标变压器的主体结构部件的几何结构;主体结构部件可以为目标变压器的主要部件,如主体结构部件可以包括目标变压器的铁芯和绕组,也可以包括目标变压器的其他部件,如夹件等,具体内容可以由配置人员基于经验进行确定。The geometric model can refer to the model corresponding to the main structural parts of the target transformer, which is used to characterize the geometric structure of the main structural parts of the target transformer; the main structural parts can be the main parts of the target transformer, for example, the main structural parts can include the iron core of the target transformer and windings, and may also include other components of the target transformer, such as clips, etc., and the specific content can be determined by the configurator based on experience.

材料参数可以认为是对几何模型中各部分进行配置的参数,如材料参数可以包括铁芯的比热容等;预设控制方程可以是指预先设置的控制方程,用于表征几何模型中各参数需要满足的条件,如预设控制方程可以包括一个或多个控制方程。Material parameters can be considered as parameters for configuring each part of the geometric model. For example, material parameters can include the specific heat capacity of the iron core, etc.; preset control equations can refer to preset control equations, which are used to characterize the parameters in the geometric model that need to satisfy The conditions, such as preset governing equations may include one or more governing equations.

在一个实施例中,所述材料参数包括主体结构部件参数和流体参数,所述流体参数为位于所述主体结构部件外部的空气域的材料参数,所述流体参数为分段线性函数。In one embodiment, the material parameter includes a main structural component parameter and a fluid parameter, the fluid parameter is a material parameter of an air domain outside the main structural component, and the fluid parameter is a piecewise linear function.

主体结构部件参数可以是指目标变压器的主体结构部件的参数,如可以包括铁芯的密度和比热容等;流体参数可以认为是位于主体结构部件外部的空气域的材料参数,在本实施例中,主体结构部件外部的空气域可以设置为流体,流体参数的具体内容可以由配置人员进行设置,如流体参数可以为分段线性函数。The parameters of the main structural components can refer to the parameters of the main structural components of the target transformer, such as the density and specific heat capacity of the iron core, etc.; the fluid parameters can be considered as the material parameters of the air domain outside the main structural components. In this embodiment, The air domain outside the main structural components can be set as a fluid, and the specific content of the fluid parameters can be set by the configurator, for example, the fluid parameters can be piecewise linear functions.

在一个实施方式中,本实施例需要对目标变压器的绕组、铁心和空气域进行材料参数的赋值,固体域的密度、比热容以及导热系数等(即主体结构部件参数)基本不随温度的变化而变化,可以将之设置成常数;空气域的材料参数(即流体参数)受温度影响较大,可以采用分段线性函数来描述。In one embodiment, this embodiment needs to assign material parameters to the windings, iron core and air domain of the target transformer, and the density, specific heat capacity and thermal conductivity of the solid domain (that is, the parameters of the main structural components) basically do not change with the change of temperature , which can be set as a constant; the material parameters (ie, fluid parameters) in the air domain are greatly affected by temperature, and can be described by piecewise linear functions.

其中,表1为本实施例提供的一种主体结构部件参数,其中第一行可以为低压绕组的各参数,第二行可以为高压绕组的各参数,第三行可以为夹件的各参数,第四行可以为铁芯的各参数。Among them, Table 1 is the parameters of a main structural component provided in this embodiment, wherein the first row can be the parameters of the low-voltage winding, the second row can be the parameters of the high-voltage winding, and the third row can be the parameters of the clip , the fourth line can be the parameters of the core.

Figure BDA0004146052930000061
Figure BDA0004146052930000061

表2为本实施例提供的一种流体参数,即空气域的材料参数。Table 2 is a fluid parameter provided in this embodiment, that is, a material parameter in the air domain.

Figure BDA0004146052930000062
Figure BDA0004146052930000062

在一个实施方式中,本实施例采用多物理场仿真技术来求解干式变压器瞬态温度分布的本质可以是利用有限元法来求解偏微分方程。对于铁芯和绕组等固体区域的传热问题,可以根据能量守恒定律,即流入某单元的能量及其发热量之和等于流出该单元热量与内能增加之和,来确定干式变压器二维轴对称瞬态热传导的控制方程为

Figure BDA0004146052930000071
其中,k是热导率;T是温度;Q是热源。In one embodiment, the essence of using multi-physics field simulation technology to solve the transient temperature distribution of the dry-type transformer in this embodiment may be to use the finite element method to solve the partial differential equation. For heat transfer problems in solid areas such as iron cores and windings, the two-dimensional dry-type transformer can be determined according to the law of energy conservation, that is, the sum of the energy flowing into a certain unit and its calorific value is equal to the sum of the heat flowing out of the unit and the increase in internal energy. The governing equation for axisymmetric transient heat conduction is
Figure BDA0004146052930000071
Among them, k is the thermal conductivity; T is the temperature; Q is the heat source.

同时,固体区域的外部环绕着空气,固体区域温度的升高使得周围空气受热膨胀,热空气上升,冷空气下降,而空气流动过程会以对流的形式带走固体区域外表面的热量。故根据流体力学,空气等非等温流动过程需要遵循质量守恒定律、动量守恒定律以及能量守恒定律,满足Navier-Stokes方程的约束,具体的控制方程可以包括:

Figure BDA0004146052930000072
和/>
Figure BDA0004146052930000073
ρ是绝缘油密度;u是油流速度矢量;p是压力;F是体积力;λ是绝缘油动力粘度。At the same time, the outside of the solid area is surrounded by air. The increase in temperature of the solid area causes the surrounding air to expand when heated, hot air rises, and cold air descends. The air flow process will take away the heat from the outer surface of the solid area in the form of convection. Therefore, according to fluid mechanics, non-isothermal flow processes such as air need to obey the law of conservation of mass, law of conservation of momentum and law of conservation of energy, and satisfy the constraints of the Navier-Stokes equation. The specific governing equations may include:
Figure BDA0004146052930000072
and />
Figure BDA0004146052930000073
ρ is the density of the insulating oil; u is the oil flow velocity vector; p is the pressure; F is the body force; λ is the dynamic viscosity of the insulating oil.

具体的,首先可以对目标变压器的几何模型进行确定,如可以对目标变压器的所有结构进行几何模型的建立,也可以简化目标变压器的结构来进行几何模型的建立。示例性的,在不影响仿真精度的前提下可以减小计算量,对目标变压器的结构进行如下简化和处理:可以忽略目标变压器吊环、高压连接杆、撑条等器件结构,考虑目标变压器的主体结构部件,如铁芯,夹件,绕组等;采用忽略边以及删除孔操作,使几何模型多为整体结构便于网格的划分;分别构建高低压绕组线圈,高压线圈可以为扁铜线绕制的多层分段圆筒式线圈,低压线圈可以为轴向连续的铜箔绕制成箔式线圈。Specifically, firstly, the geometric model of the target transformer can be determined. For example, the geometric model can be established for all structures of the target transformer, or the structure of the target transformer can be simplified to establish the geometric model. Exemplarily, the amount of calculation can be reduced without affecting the simulation accuracy, and the structure of the target transformer can be simplified and processed as follows: the structure of the target transformer lifting ring, high-voltage connecting rod, stay, etc. can be ignored, and the main body of the target transformer can be considered Structural components, such as iron cores, clips, windings, etc.; use the operations of ignoring edges and deleting holes, so that the geometric model is mostly an overall structure for easy grid division; build high and low voltage winding coils separately, and high voltage coils can be wound for flat copper wires The multi-layer segmented cylindrical coil, the low-voltage coil can be wound into a foil coil by axially continuous copper foil.

然后根据材料参数和预设控制方程,对几何模型进行对应的配置来得到最终目标变压器对应的仿真计算模型。Then, according to the material parameters and preset control equations, the geometric model is configured correspondingly to obtain the simulation calculation model corresponding to the final target transformer.

在一个实施例中,所述获取目标变压器对应的仿真计算模型,包括:In one embodiment, the acquisition of the simulation calculation model corresponding to the target transformer includes:

确定所述仿真计算模型的边界条件,所述边界条件包括无滑移边界条件、开放边界条件和对称边界条件。Boundary conditions of the simulation calculation model are determined, and the boundary conditions include no-slip boundary conditions, open boundary conditions and symmetric boundary conditions.

在本实施例中边界条件可以包括无滑移边界条件、开放边界条件和对称边界条件,上述三个边界条件的具体内容不限,可基于实际情况进行设置。In this embodiment, the boundary conditions may include no-slip boundary conditions, open boundary conditions, and symmetrical boundary conditions. The specific content of the above three boundary conditions is not limited and can be set based on actual conditions.

在一个实施方式中,本实施例可以设置重力加速度为9.81m/s2,方向为y轴负反向;同时,目标变压器的本体和空气域交界面可以为流固耦合界面,并将此流固耦合界面设定为无滑移边界条件;设置目标变压器空气域下方为入口,环境温度为20℃,目标变压器空气域上方和远离铁心一侧为开放边界条件,靠铁心一侧为对称边界条件;将铁心和绕组表面设置为漫反射表面,表面发射率为0.9。In one embodiment, in this embodiment, the gravitational acceleration can be set to 9.81m/s2, and the direction is the negative and reverse direction of the y-axis; at the same time, the interface between the body of the target transformer and the air domain can be a fluid-solid coupling interface, and the fluid-solid coupling interface can be The coupling interface is set as the no-slip boundary condition; the inlet is set below the target transformer air zone, the ambient temperature is 20°C, the open boundary condition is above the air zone of the target transformer and the side away from the iron core, and the symmetrical boundary condition is set on the side close to the iron core; Set the core and winding surfaces as diffuse surfaces with a surface emissivity of 0.9.

在一个实施方式中,在建立目标变压器对应的仿真计算模型的过程中,还可以对仿真计算模型的边界条件进行确定,以保证仿真计算模型的准确性。In one embodiment, in the process of establishing the simulation calculation model corresponding to the target transformer, the boundary conditions of the simulation calculation model may also be determined to ensure the accuracy of the simulation calculation model.

在一个实施例中,所述仿真计算模型为基于所述目标变压器的窄边横截面建立的模型。In one embodiment, the simulation calculation model is a model established based on the narrow side cross-section of the target transformer.

在一个实施方式中,三维干式变压器瞬态温升过程的计算量大、计算速度缓慢,因此,可以选取目标变压器的窄边横截面来建立二维热流场仿真模型,即仿真计算模型。In one embodiment, the calculation of the transient temperature rise process of the three-dimensional dry-type transformer is large and the calculation speed is slow. Therefore, the narrow-side cross-section of the target transformer can be selected to establish a two-dimensional thermal flow field simulation model, that is, a simulation calculation model.

S120、基于所述目标变压器处理后的激励信号和所述仿真计算模型计算所述目标变压器的温度场分布。S120. Calculate the temperature field distribution of the target transformer based on the processed excitation signal of the target transformer and the simulation calculation model.

激励信号可以用于表征目标变压器的热源对应的损耗值,目标变压器的热源可以认为是导致目标变压器温度发生变化的设备或装置,如使目标变压器发热的设备;处理后的激励信号可以理解为对激励信号进行处理后的信号,处理的具体手段不作限定,可以根据热源实际情况进行确定。The excitation signal can be used to characterize the loss value corresponding to the heat source of the target transformer. The heat source of the target transformer can be considered as the equipment or device that causes the temperature of the target transformer to change, such as the equipment that makes the target transformer heat; the processed excitation signal can be understood as The signal after the excitation signal is processed, the specific means of processing is not limited, and can be determined according to the actual situation of the heat source.

本步骤可以在获取仿真计算模型后,基于目标变压器处理后的激励信号和仿真计算模型对目标变压器的温度场分布进行计算,以将计算的温度分布用于目标变压器性能的评估,如过负荷能力评估。其中,本实施例不对计算温度场分布的具体过程进行限定,例如可以将处理后的激励信号输入至目标变压器的仿真计算模型中,来直接输出目标变压器的温度场分布;还可以通过对目标变压器处理后的激励信号和仿真计算模型进行计算来得到目标变压器的温度场分布,本实施例对此不作限定。In this step, after obtaining the simulation calculation model, the temperature field distribution of the target transformer can be calculated based on the processed excitation signal of the target transformer and the simulation calculation model, so that the calculated temperature distribution can be used for the evaluation of the performance of the target transformer, such as overload capacity Evaluate. Wherein, this embodiment does not limit the specific process of calculating the temperature field distribution. For example, the processed excitation signal can be input into the simulation calculation model of the target transformer to directly output the temperature field distribution of the target transformer; The processed excitation signal and the simulation calculation model are calculated to obtain the temperature field distribution of the target transformer, which is not limited in this embodiment.

本发明实施例一提供的一种温度场分布的计算方法,获取目标变压器对应的仿真计算模型,所述仿真计算模型为二维轴对称模型;基于所述目标变压器处理后的激励信号和所述仿真计算模型计算所述目标变压器的温度场分布。利用该方法,通过基于二维轴对称的仿真计算模型进行温度场分布的计算,减少了温度计算的计算量,从而提高了运算速度。The calculation method of the temperature field distribution provided by the first embodiment of the present invention obtains the simulation calculation model corresponding to the target transformer, and the simulation calculation model is a two-dimensional axisymmetric model; based on the processed excitation signal of the target transformer and the The simulation calculation model calculates the temperature field distribution of the target transformer. By using this method, the temperature field distribution is calculated based on a two-dimensional axisymmetric simulation calculation model, which reduces the calculation amount of temperature calculation and thus improves the calculation speed.

实施例二Embodiment two

图2是根据本发明实施例二提供的一种温度场分布的计算方法的流程图,本实施例二在上述各实施例的基础上进行优化。在本实施例中,将在所述基于所述目标变压器处理后的激励信号和所述仿真计算模型计算所述目标变压器的温度场分布之前的情况进一步具体化为:基于所述目标变压器的铭牌参数对激励信号进行平滑处理,得到所述处理后的激励信号。Fig. 2 is a flow chart of a method for calculating temperature field distribution according to Embodiment 2 of the present invention. This Embodiment 2 is optimized on the basis of the foregoing embodiments. In this embodiment, the situation before calculating the temperature field distribution of the target transformer based on the processed excitation signal of the target transformer and the simulation calculation model is further embodied as: based on the nameplate of the target transformer smoothing the excitation signal to obtain the processed excitation signal.

本实施例尚未详尽的内容请参考实施例一。Please refer to Embodiment 1 for the content that is not exhaustive in this embodiment.

如图2所示,该方法包括:As shown in Figure 2, the method includes:

S210、获取目标变压器对应的仿真计算模型,所述仿真计算模型为二维轴对称模型。S210. Acquire a simulation calculation model corresponding to the target transformer, where the simulation calculation model is a two-dimensional axisymmetric model.

S220、基于所述目标变压器的铭牌参数对激励信号进行平滑处理,得到所述处理后的激励信号。S220. Smoothing the excitation signal based on the nameplate parameters of the target transformer to obtain the processed excitation signal.

铭牌参数可以是指目标变压器的出厂参数。The nameplate parameters may refer to factory parameters of the target transformer.

本步骤可以基于目标变压器的铭牌参数对激励信号进行平滑处理,以得到处理后的激励信号,平滑处理的过程可以基于激励信号来确定。In this step, the excitation signal may be smoothed based on nameplate parameters of the target transformer to obtain a processed excitation signal, and the smoothing process may be determined based on the excitation signal.

在一个实施例中,所述激励信号为目标变压器热源对应的损耗值,所述目标变压器热源为所述目标变压器的主体结构部件,所述激励信号为阶跃函数。In one embodiment, the excitation signal is a loss value corresponding to a target transformer heat source, the target transformer heat source is a main structural component of the target transformer, and the excitation signal is a step function.

在一个实施方式中,目标变压器热源是目标变压器发热的主要原因,目标变压器热源可以为目标变压器的主体结构部件,即目标变压器的主体结构部件上的损耗为目标变压器发热的主要原因,且本实施例可以用阶跃函数来表征目标变压器热源对应的损耗值。In one embodiment, the target transformer heat source is the main cause of the target transformer heating, the target transformer heat source can be the main structural components of the target transformer, that is, the loss on the main structural components of the target transformer is the main cause of the target transformer heating, and this implementation For example, a step function can be used to characterize the loss value corresponding to the target transformer heat source.

图3是根据本发明实施例二提供的一种平滑处理后的激励信号的示意图,如图3所示,为基于绕组的铭牌参数对阶跃函数进行平滑处理后的信号。FIG. 3 is a schematic diagram of a smoothed excitation signal according to Embodiment 2 of the present invention. As shown in FIG. 3 , it is a signal after a step function is smoothed based on nameplate parameters of the winding.

图4是根据本发明实施例二提供的另一种平滑处理后的激励信号的示意图,如图4所示,为基于铁芯的铭牌参数对阶跃函数进行平滑处理后的信号。FIG. 4 is a schematic diagram of another smoothed excitation signal according to Embodiment 2 of the present invention. As shown in FIG. 4 , it is a signal obtained by smoothing a step function based on nameplate parameters of the iron core.

S230、基于所述目标变压器处理后的激励信号和所述仿真计算模型计算所述目标变压器的温度场分布。S230. Calculate the temperature field distribution of the target transformer based on the processed excitation signal of the target transformer and the simulation calculation model.

本发明实施例二提供的一种温度场分布的计算方法,获取目标变压器对应的仿真计算模型,所述仿真计算模型为二维轴对称模型;基于所述目标变压器的铭牌参数对激励信号进行平滑处理,得到所述处理后的激励信号;基于所述目标变压器处理后的激励信号和所述仿真计算模型计算所述目标变压器的温度场分布。利用该方法,通过基于目标变压器的铭牌参数对激励信号进行平滑处理,提高了后续仿真计算过程的收敛性。The calculation method of the temperature field distribution provided by the second embodiment of the present invention obtains the simulation calculation model corresponding to the target transformer, and the simulation calculation model is a two-dimensional axisymmetric model; the excitation signal is smoothed based on the nameplate parameters of the target transformer processing to obtain the processed excitation signal; and calculate the temperature field distribution of the target transformer based on the processed excitation signal of the target transformer and the simulation calculation model. Using this method, the excitation signal is smoothed based on the nameplate parameters of the target transformer, which improves the convergence of the subsequent simulation calculation process.

图5是根据本发明实施例二提供的另一种温度场分布的计算方法的流程图,如图5所示,首先可以采用阶跃函数表征干式变压器各部分的热源(即目标变压器热源为所述目标变压器的主体结构部件,所述激励信号为阶跃函数),并进行平滑处理,以此提高瞬态仿真计算过程的收敛性;然后可以基于有限元原理,针对干式变压器构建自然对流散热模式下的二维轴对称热流场瞬态仿真模型(即目标变压器对应的仿真计算模型),并将平滑处理后的热源作为仿真模型的激励;继而可以将构建的热流场瞬态仿真模型中的各变量耦合成单个矩阵,并采用计算量更小的迭代法计算该矩阵,来求得干式变压器自然对流换热模式下的瞬态温度分布(即基于所述目标变压器处理后的激励信号和所述仿真计算模型计算所述目标变压器的温度场分布)。Fig. 5 is a flow chart of another calculation method for temperature field distribution according to Embodiment 2 of the present invention. As shown in Fig. 5 , first, step functions can be used to characterize the heat sources of each part of the dry-type transformer (that is, the target transformer heat source is The main structural components of the target transformer, the excitation signal is a step function) and smoothed to improve the convergence of the transient simulation calculation process; then based on the finite element principle, a natural convection current can be constructed for dry-type transformers The transient simulation model of the two-dimensional axisymmetric heat flow field in the heat dissipation mode (that is, the simulation calculation model corresponding to the target transformer), and the smoothed heat source is used as the excitation of the simulation model; then the transient simulation of the constructed heat flow field can be Each variable in the model is coupled into a single matrix, and the iterative method with less calculation amount is used to calculate the matrix to obtain the transient temperature distribution of the dry-type transformer in the natural convection heat transfer mode (that is, based on the target transformer after processing The excitation signal and the simulation calculation model calculate the temperature field distribution of the target transformer).

图6是根据本发明实施例二提供的一种几何模型的结构示意图,如图6所示,几何模型为目标变压器的主体结构部件对应的模型,主体结构部件可以包括铁芯1、绕组2和夹件3。Fig. 6 is a schematic structural diagram of a geometric model provided according to Embodiment 2 of the present invention. As shown in Fig. 6, the geometric model is a model corresponding to the main structural components of the target transformer, and the main structural components may include iron core 1, winding 2 and Clip 3.

图7是根据本发明实施例二提供的一种目标变压器的温度场分布的示意图,如图7所示,为某时刻目标变压器中各部件的温度示意图,通过本实施例提供的上述方法也可以得到目标变压器在不同时刻时的温度分布。Fig. 7 is a schematic diagram of the temperature field distribution of a target transformer provided according to Embodiment 2 of the present invention. As shown in Fig. 7, it is a schematic diagram of the temperature of each component in the target transformer at a certain moment, and the above-mentioned method provided by this embodiment can also be The temperature distribution of the target transformer at different times is obtained.

通过上述方法可以对某干式变压器进行瞬态温度分布的仿真计算,同时本实施例可以采取方法进行试验验证,以验证上述方法的有效性和准确性。示例性的,针对所仿真的干式变压器,可以进行不同负载率下的温升试验以验证所提出仿真计算方法的准确性。The simulation calculation of the transient temperature distribution of a certain dry-type transformer can be carried out through the above method, and at the same time, this embodiment can adopt a method for experimental verification to verify the effectiveness and accuracy of the above method. Exemplarily, for the simulated dry-type transformer, temperature rise tests under different load rates may be performed to verify the accuracy of the proposed simulation calculation method.

图8是根据本发明实施例二提供的一种不同负载率下对比平均温升理论值和仿真值的结果示意图,如图8所示,不同负载率下平均温升的试验拟合曲线和仿真拟合曲线高度贴合,理论值和试验值高度基本一致,由此可以验证本实施例所提仿真计算方法的有效性和准确性。Figure 8 is a schematic diagram of the results of comparing the theoretical and simulated values of the average temperature rise under different load rates according to Embodiment 2 of the present invention. As shown in Figure 8, the test fitting curve and simulation of the average temperature rise under different load rates The fitting curves are highly fitted, and the theoretical values are basically consistent with the experimental values, thus the effectiveness and accuracy of the simulation calculation method proposed in this embodiment can be verified.

综上,与传统的干式变温升计算方法(如经验公式法、热网络法相比、数值计算法)相比,本发明实施例提供的温度场分布的计算方法能够在不影响温度场仿真计算结果的前提下,对干式变压器几何结构进行合理简化,并依据干式变压器的对称性,采用二维轴对称模型对干式变压器进行几何建模,大大减少了仿真计算的运算量,提高了运算速度。此外,干式变压器的热源采用平滑处理后的阶跃函数表征,提高了瞬态仿真模型的收敛性。In summary, compared with traditional dry-type variable temperature rise calculation methods (such as empirical formula method, thermal network method, and numerical calculation method), the calculation method of temperature field distribution provided by the embodiment of the present invention can be used without affecting the temperature field simulation. On the premise of the calculation results, the geometric structure of the dry-type transformer is reasonably simplified, and according to the symmetry of the dry-type transformer, a two-dimensional axisymmetric model is used to model the geometry of the dry-type transformer, which greatly reduces the amount of simulation calculation and improves operation speed. In addition, the heat source of the dry-type transformer is represented by a smoothed step function, which improves the convergence of the transient simulation model.

因此,本发明实施例实现了快速、准确地对自然对流干式变压器瞬态温升过程的仿真计算,获得了干式变压器冷启动过程中任意时刻下的温度分布,以用于干式变压器健康状态评估和过负荷能力评价,为干式变压器的结构优化和状态评估提供理论指导。Therefore, the embodiment of the present invention realizes fast and accurate simulation calculation of the transient temperature rise process of the natural convection dry-type transformer, and obtains the temperature distribution at any time during the cold start process of the dry-type transformer, which is used for the health of the dry-type transformer. State assessment and overload capacity evaluation provide theoretical guidance for structural optimization and state assessment of dry-type transformers.

实施例三Embodiment three

图9是根据本发明实施例三提供的一种温度场分布的计算装置的结构示意图。如图9所示,该装置包括:FIG. 9 is a schematic structural diagram of a calculation device for temperature field distribution according to Embodiment 3 of the present invention. As shown in Figure 9, the device includes:

获取模块310,用于获取目标变压器对应的仿真计算模型,所述仿真计算模型为二维轴对称模型;An acquisition module 310, configured to acquire a simulation calculation model corresponding to the target transformer, where the simulation calculation model is a two-dimensional axisymmetric model;

计算模块320,用于基于所述目标变压器处理后的激励信号和所述仿真计算模型计算所述目标变压器的温度场分布。The calculation module 320 is configured to calculate the temperature field distribution of the target transformer based on the processed excitation signal of the target transformer and the simulation calculation model.

本发明实施例三提供的一种温度场分布的计算装置,通过获取模块获取目标变压器对应的仿真计算模型,所述仿真计算模型为二维轴对称模型;通过计算模块基于所述目标变压器处理后的激励信号和所述仿真计算模型计算所述目标变压器的温度场分布。利用该装置,通过基于二维轴对称的仿真计算模型进行温度场分布的计算,减少了温度计算的计算量,从而提高了运算速度。A computing device for temperature field distribution provided by Embodiment 3 of the present invention obtains the simulation calculation model corresponding to the target transformer through the acquisition module, and the simulation calculation model is a two-dimensional axisymmetric model; after processing by the calculation module based on the target transformer The excitation signal and the simulation calculation model calculate the temperature field distribution of the target transformer. The device is used to calculate the temperature field distribution based on a two-dimensional axisymmetric simulation calculation model, which reduces the calculation amount of temperature calculation and thus improves the calculation speed.

可选的,所述获取模块310具体用于:Optionally, the acquiring module 310 is specifically used for:

确定所述目标变压器的几何模型,所述几何模型为所述目标变压器的主体结构部件对应的模型,所述主体结构部件包括铁芯和绕组;Determining a geometric model of the target transformer, the geometric model being a model corresponding to the main structural components of the target transformer, the main structural components including iron cores and windings;

根据材料参数和预设控制方程,对所述几何模型进行配置得到所述目标变压器对应的仿真计算模型。According to material parameters and preset control equations, the geometric model is configured to obtain a simulation calculation model corresponding to the target transformer.

可选的,所述材料参数包括主体结构部件参数和流体参数,所述流体参数为位于所述主体结构部件外部的空气域的材料参数,所述流体参数为分段线性函数。Optionally, the material parameter includes a main structural component parameter and a fluid parameter, the fluid parameter is a material parameter of an air domain outside the main structural component, and the fluid parameter is a piecewise linear function.

可选的,本发明实施例提供的一种温度场分布的计算装置,还包括:Optionally, a computing device for temperature field distribution provided in an embodiment of the present invention further includes:

平滑处理模块,用于在所述基于所述目标变压器处理后的激励信号和所述仿真计算模型计算所述目标变压器的温度场分布之前,基于所述目标变压器的铭牌参数对激励信号进行平滑处理,得到所述处理后的激励信号。A smoothing processing module, configured to smooth the excitation signal based on nameplate parameters of the target transformer before calculating the temperature field distribution of the target transformer based on the processed excitation signal of the target transformer and the simulation calculation model , to obtain the processed excitation signal.

可选的,所述激励信号为目标变压器热源对应的损耗值,所述目标变压器热源为所述目标变压器的主体结构部件,所述激励信号为阶跃函数。Optionally, the excitation signal is a loss value corresponding to a target transformer heat source, the target transformer heat source is a main structural component of the target transformer, and the excitation signal is a step function.

可选的,所述获取模块310具体用于:Optionally, the acquiring module 310 is specifically used for:

确定所述仿真计算模型的边界条件,所述边界条件包括无滑移边界条件、开放边界条件和对称边界条件。Boundary conditions of the simulation calculation model are determined, and the boundary conditions include no-slip boundary conditions, open boundary conditions and symmetric boundary conditions.

可选的,所述仿真计算模型为基于所述目标变压器的窄边横截面建立的模型。Optionally, the simulation calculation model is a model established based on the narrow side cross section of the target transformer.

本发明实施例所提供的温度场分布的计算装置可执行本发明任意实施例所提供的温度场分布的计算方法,具备执行方法相应的功能模块和有益效果。The temperature field distribution computing device provided in the embodiments of the present invention can execute the temperature field distribution computing method provided in any embodiment of the present invention, and has corresponding functional modules and beneficial effects for executing the method.

实施例四Embodiment four

图10是根据本发明实施例四提供的一种电子设备的结构示意图。电子设备旨在表示各种形式的数字计算机,诸如,膝上型计算机、台式计算机、工作台、个人数字助理、服务器、刀片式服务器、大型计算机、和其它适合的计算机。电子设备还可以表示各种形式的移动装置,诸如,个人数字处理、蜂窝电话、智能电话、可穿戴设备(如头盔、眼镜、手表等)和其它类似的计算装置。本文所示的部件、它们的连接和关系、以及它们的功能仅仅作为示例,并且不意在限制本文中描述的和/或者要求的本发明的实现。FIG. 10 is a schematic structural diagram of an electronic device according to Embodiment 4 of the present invention. Electronic device is intended to represent various forms of digital computers, such as laptops, desktops, workstations, personal digital assistants, servers, blade servers, mainframes, and other suitable computers. Electronic devices may also represent various forms of mobile devices, such as personal digital processing, cellular phones, smart phones, wearable devices (eg, helmets, glasses, watches, etc.), and other similar computing devices. The components shown herein, their connections and relationships, and their functions, are by way of example only, and are not intended to limit implementations of the inventions described and/or claimed herein.

如图10所示,电子设备10包括至少一个处理器11,以及与至少一个处理器11通信连接的存储器,如只读存储器(ROM)12、随机访问存储器(RAM)13等,其中,存储器存储有可被至少一个处理器执行的计算机程序,处理器11可以根据存储在只读存储器(ROM)12中的计算机程序或者从存储单元18加载到随机访问存储器(RAM)13中的计算机程序,来执行各种适当的动作和处理。在RAM 13中,还可存储电子设备10操作所需的各种程序和数据。处理器11、ROM 12以及RAM 13通过总线14彼此相连。输入/输出(I/O)接口15也连接至总线14。As shown in FIG. 10 , the electronic device 10 includes at least one processor 11, and a memory communicatively connected with the at least one processor 11, such as a read-only memory (ROM) 12, a random access memory (RAM) 13, etc., wherein the memory stores There is a computer program executable by at least one processor, and the processor 11 can operate according to a computer program stored in a read-only memory (ROM) 12 or loaded from a storage unit 18 into a random access memory (RAM) 13. Various appropriate actions and processes are performed. In the RAM 13, various programs and data necessary for the operation of the electronic device 10 are also stored. The processor 11 , ROM 12 , and RAM 13 are connected to each other through a bus 14 . An input/output (I/O) interface 15 is also connected to the bus 14 .

电子设备10中的多个部件连接至I/O接口15,包括:输入单元16,例如键盘、鼠标等;输出单元17,例如各种类型的显示器、扬声器等;存储单元18,例如磁盘、光盘等;以及通信单元19,例如网卡、调制解调器、无线通信收发机等。通信单元19允许电子设备10通过诸如因特网的计算机网络和/或各种电信网络与其他设备交换信息/数据。Multiple components in the electronic device 10 are connected to the I/O interface 15, including: an input unit 16, such as a keyboard, a mouse, etc.; an output unit 17, such as various types of displays, speakers, etc.; a storage unit 18, such as a magnetic disk, an optical disk etc.; and a communication unit 19, such as a network card, a modem, a wireless communication transceiver, and the like. The communication unit 19 allows the electronic device 10 to exchange information/data with other devices through a computer network such as the Internet and/or various telecommunication networks.

处理器11可以是各种具有处理和计算能力的通用和/或专用处理组件。处理器11的一些示例包括但不限于中央处理单元(CPU)、图形处理单元(GPU)、各种专用的人工智能(AI)计算芯片、各种运行机器学习模型算法的处理器、数字信号处理器(DSP)、以及任何适当的处理器、控制器、微控制器等。处理器11执行上文所描述的各个方法和处理,例如温度场分布的计算方法。Processor 11 may be various general and/or special purpose processing components having processing and computing capabilities. Some examples of processor 11 include, but are not limited to, central processing units (CPUs), graphics processing units (GPUs), various dedicated artificial intelligence (AI) computing chips, various processors that run machine learning model algorithms, digital signal processing processor (DSP), and any suitable processor, controller, microcontroller, etc. The processor 11 executes various methods and processes described above, such as a calculation method of temperature field distribution.

在一些实施例中,温度场分布的计算方法可被实现为计算机程序,其被有形地包含于计算机可读存储介质,例如存储单元18。在一些实施例中,计算机程序的部分或者全部可以经由ROM 12和/或通信单元19而被载入和/或安装到电子设备10上。当计算机程序加载到RAM 13并由处理器11执行时,可以执行上文描述的温度场分布的计算方法的一个或多个步骤。备选地,在其他实施例中,处理器11可以通过其他任何适当的方式(例如,借助于固件)而被配置为执行温度场分布的计算方法。In some embodiments, the method for calculating the temperature field distribution can be implemented as a computer program, which is tangibly contained in a computer-readable storage medium, such as the storage unit 18 . In some embodiments, part or all of the computer program may be loaded and/or installed on the electronic device 10 via the ROM 12 and/or the communication unit 19 . When the computer program is loaded into the RAM 13 and executed by the processor 11, one or more steps of the method for calculating the temperature field distribution described above can be executed. Alternatively, in other embodiments, the processor 11 may be configured in any other appropriate way (for example, by means of firmware) to execute the calculation method of the temperature field distribution.

本文中以上描述的系统和技术的各种实施方式可以在数字电子电路系统、集成电路系统、场可编程门阵列(FPGA)、专用集成电路(ASIC)、专用标准产品(ASSP)、芯片上系统的系统(SOC)、负载可编程逻辑设备(CPLD)、计算机硬件、固件、软件、和/或它们的组合中实现。这些各种实施方式可以包括:实施在一个或者多个计算机程序中,该一个或者多个计算机程序可在包括至少一个可编程处理器的可编程系统上执行和/或解释,该可编程处理器可以是专用或者通用可编程处理器,可以从存储系统、至少一个输入装置、和至少一个输出装置接收数据和指令,并且将数据和指令传输至该存储系统、该至少一个输入装置、和该至少一个输出装置。Various implementations of the systems and techniques described above herein can be implemented in digital electronic circuit systems, integrated circuit systems, field programmable gate arrays (FPGAs), application specific integrated circuits (ASICs), application specific standard products (ASSPs), systems on chips Implemented in a system of systems (SOC), load programmable logic device (CPLD), computer hardware, firmware, software, and/or combinations thereof. These various embodiments may include being implemented in one or more computer programs executable and/or interpreted on a programmable system including at least one programmable processor, the programmable processor Can be special-purpose or general-purpose programmable processor, can receive data and instruction from storage system, at least one input device, and at least one output device, and transmit data and instruction to this storage system, this at least one input device, and this at least one output device an output device.

用于实施本发明的方法的计算机程序可以采用一个或多个编程语言的任何组合来编写。这些计算机程序可以提供给通用计算机、专用计算机或其他可编程数据处理装置的处理器,使得计算机程序当由处理器执行时使流程图和/或框图中所规定的功能/操作被实施。计算机程序可以完全在机器上执行、部分地在机器上执行,作为独立软件包部分地在机器上执行且部分地在远程机器上执行或完全在远程机器或服务器上执行。Computer programs for implementing the methods of the present invention may be written in any combination of one or more programming languages. These computer programs can be provided to a processor of a general-purpose computer, a special-purpose computer, or other programmable data processing apparatus, so that the computer program causes the functions/operations specified in the flowcharts and/or block diagrams to be implemented when executed by the processor. A computer program may execute entirely on the machine, partly on the machine, as a stand-alone software package partly on the machine and partly on a remote machine or entirely on the remote machine or server.

在本发明的上下文中,计算机可读存储介质可以是有形的介质,其可以包含或存储以供指令执行系统、装置或设备使用或与指令执行系统、装置或设备结合地使用的计算机程序。计算机可读存储介质可以包括但不限于电子的、磁性的、光学的、电磁的、红外的、或半导体系统、装置或设备,或者上述内容的任何合适组合。备选地,计算机可读存储介质可以是机器可读信号介质。机器可读存储介质的更具体示例会包括基于一个或多个线的电气连接、便携式计算机盘、硬盘、随机存取存储器(RAM)、只读存储器(ROM)、可擦除可编程只读存储器(EPROM或快闪存储器)、光纤、便捷式紧凑盘只读存储器(CD-ROM)、光学储存设备、磁储存设备、或上述内容的任何合适组合。In the context of the present invention, a computer readable storage medium may be a tangible medium that may contain or store a computer program for use by or in conjunction with an instruction execution system, apparatus or device. A computer readable storage medium may include, but is not limited to, electronic, magnetic, optical, electromagnetic, infrared, or semiconductor systems, apparatus, or devices, or any suitable combination of the foregoing. Alternatively, a computer readable storage medium may be a machine readable signal medium. More specific examples of machine-readable storage media would include one or more wire-based electrical connections, portable computer discs, hard drives, random access memory (RAM), read only memory (ROM), erasable programmable read only memory (EPROM or flash memory), optical fiber, compact disk read only memory (CD-ROM), optical storage, magnetic storage, or any suitable combination of the foregoing.

为了提供与用户的交互,可以在电子设备上实施此处描述的系统和技术,该电子设备具有:用于向用户显示信息的显示装置(例如,CRT(阴极射线管)或者LCD(液晶显示器)监视器);以及键盘和指向装置(例如,鼠标或者轨迹球),用户可以通过该键盘和该指向装置来将输入提供给电子设备。其它种类的装置还可以用于提供与用户的交互;例如,提供给用户的反馈可以是任何形式的传感反馈(例如,视觉反馈、听觉反馈、或者触觉反馈);并且可以用任何形式(包括声输入、语音输入或者、触觉输入)来接收来自用户的输入。In order to provide interaction with the user, the systems and techniques described herein can be implemented on an electronic device having a display device (e.g., a CRT (cathode ray tube) or LCD (liquid crystal display)) for displaying information to the user. monitor); and a keyboard and pointing device (eg, a mouse or a trackball) through which the user can provide input to the electronic device. Other kinds of devices can also be used to provide interaction with the user; for example, the feedback provided to the user can be any form of sensory feedback (e.g., visual feedback, auditory feedback, or tactile feedback); and can be in any form (including Acoustic input, speech input or, tactile input) to receive input from the user.

可以将此处描述的系统和技术实施在包括后台部件的计算系统(例如,作为数据服务器)、或者包括中间件部件的计算系统(例如,应用服务器)、或者包括前端部件的计算系统(例如,具有图形用户界面或者网络浏览器的用户计算机,用户可以通过该图形用户界面或者该网络浏览器来与此处描述的系统和技术的实施方式交互)、或者包括这种后台部件、中间件部件、或者前端部件的任何组合的计算系统中。可以通过任何形式或者介质的数字数据通信(例如,通信网络)来将系统的部件相互连接。通信网络的示例包括:局域网(LAN)、广域网(WAN)、区块链网络和互联网。The systems and techniques described herein can be implemented in a computing system that includes back-end components (e.g., as a data server), or a computing system that includes middleware components (e.g., an application server), or a computing system that includes front-end components (e.g., as a a user computer having a graphical user interface or web browser through which a user can interact with embodiments of the systems and techniques described herein), or including such backend components, middleware components, Or any combination of front-end components in a computing system. The components of the system can be interconnected by any form or medium of digital data communication, eg, a communication network. Examples of communication networks include: local area networks (LANs), wide area networks (WANs), blockchain networks, and the Internet.

计算系统可以包括客户端和服务器。客户端和服务器一般远离彼此并且通常通过通信网络进行交互。通过在相应的计算机上运行并且彼此具有客户端-服务器关系的计算机程序来产生客户端和服务器的关系。服务器可以是云服务器,又称为云计算服务器或云主机,是云计算服务体系中的一项主机产品,以解决了传统物理主机与VPS服务中,存在的管理难度大,业务扩展性弱的缺陷。A computing system can include clients and servers. Clients and servers are generally remote from each other and typically interact through a communication network. The relationship of client and server arises by computer programs running on the respective computers and having a client-server relationship to each other. The server can be a cloud server, also known as a cloud computing server or a cloud host. It is a host product in the cloud computing service system to solve the problems of difficult management and weak business expansion in traditional physical hosts and VPS services. defect.

应该理解,可以使用上面所示的各种形式的流程,重新排序、增加或删除步骤。例如,本发明中记载的各步骤可以并行地执行也可以顺序地执行也可以不同的次序执行,只要能够实现本发明的技术方案所期望的结果,本文在此不进行限制。It should be understood that steps may be reordered, added or deleted using the various forms of flow shown above. For example, each step described in the present invention may be executed in parallel, sequentially, or in a different order, as long as the desired result of the technical solution of the present invention can be achieved, there is no limitation herein.

上述具体实施方式,并不构成对本发明保护范围的限制。本领域技术人员应该明白的是,根据设计要求和其他因素,可以进行各种修改、组合、子组合和替代。任何在本发明的精神和原则之内所作的修改、等同替换和改进等,均应包含在本发明保护范围之内。The above specific implementation methods do not constitute a limitation to the protection scope of the present invention. It should be apparent to those skilled in the art that various modifications, combinations, sub-combinations and substitutions may be made depending on design requirements and other factors. Any modifications, equivalent replacements and improvements made within the spirit and principles of the present invention shall be included within the protection scope of the present invention.

Claims (10)

1.一种温度场分布的计算方法,其特征在于,包括:1. A calculation method for temperature field distribution, characterized in that, comprising: 获取目标变压器对应的仿真计算模型,所述仿真计算模型为二维轴对称模型;Obtaining a simulation calculation model corresponding to the target transformer, the simulation calculation model being a two-dimensional axisymmetric model; 基于所述目标变压器处理后的激励信号和所述仿真计算模型计算所述目标变压器的温度场分布。Calculate the temperature field distribution of the target transformer based on the processed excitation signal of the target transformer and the simulation calculation model. 2.根据权利要求1所述的方法,其特征在于,所述获取目标变压器对应的仿真计算模型,包括:2. The method according to claim 1, wherein said obtaining the simulation calculation model corresponding to the target transformer comprises: 确定所述目标变压器的几何模型,所述几何模型为所述目标变压器的主体结构部件对应的模型,所述主体结构部件包括铁芯和绕组;Determining a geometric model of the target transformer, the geometric model being a model corresponding to the main structural components of the target transformer, the main structural components including iron cores and windings; 根据材料参数和预设控制方程,对所述几何模型进行配置得到所述目标变压器对应的仿真计算模型。According to material parameters and preset control equations, the geometric model is configured to obtain a simulation calculation model corresponding to the target transformer. 3.根据权利要求2所述的方法,其特征在于,所述材料参数包括主体结构部件参数和流体参数,所述流体参数为位于所述主体结构部件外部的空气域的材料参数,所述流体参数为分段线性函数。3. The method according to claim 2, wherein the material parameter comprises a main structural part parameter and a fluid parameter, the fluid parameter is a material parameter of an air domain outside the main structural part, and the fluid The arguments are piecewise linear functions. 4.根据权利要求1所述的方法,其特征在于,在所述基于所述目标变压器处理后的激励信号和所述仿真计算模型计算所述目标变压器的温度场分布之前,还包括:4. The method according to claim 1, wherein, before calculating the temperature field distribution of the target transformer based on the processed excitation signal of the target transformer and the simulation calculation model, further comprising: 基于所述目标变压器的铭牌参数对激励信号进行平滑处理,得到所述处理后的激励信号。The excitation signal is smoothed based on the nameplate parameters of the target transformer to obtain the processed excitation signal. 5.根据权利要求4所述的方法,其特征在于,所述激励信号为目标变压器热源对应的损耗值,所述目标变压器热源为所述目标变压器的主体结构部件,所述激励信号为阶跃函数。5. The method according to claim 4, wherein the excitation signal is the loss value corresponding to the target transformer heat source, the target transformer heat source is the main structural part of the target transformer, and the excitation signal is a step function. 6.根据权利要求1所述的方法,其特征在于,所述获取目标变压器对应的仿真计算模型,包括:6. The method according to claim 1, wherein said obtaining the simulation calculation model corresponding to the target transformer comprises: 确定所述仿真计算模型的边界条件,所述边界条件包括无滑移边界条件、开放边界条件和对称边界条件。Boundary conditions of the simulation calculation model are determined, and the boundary conditions include no-slip boundary conditions, open boundary conditions and symmetric boundary conditions. 7.根据权利要求1所述的方法,其特征在于,所述仿真计算模型为基于所述目标变压器的窄边横截面建立的模型。7. The method according to claim 1, wherein the simulation calculation model is a model established based on the narrow side cross section of the target transformer. 8.一种温度场分布的计算装置,其特征在于,包括:8. A computing device for temperature field distribution, comprising: 获取模块,用于获取目标变压器对应的仿真计算模型,所述仿真计算模型为二维轴对称模型;An acquisition module, configured to acquire a simulation calculation model corresponding to the target transformer, where the simulation calculation model is a two-dimensional axisymmetric model; 计算模块,用于基于所述目标变压器处理后的激励信号和所述仿真计算模型计算所述目标变压器的温度场分布。A calculation module, configured to calculate the temperature field distribution of the target transformer based on the processed excitation signal of the target transformer and the simulation calculation model. 9.一种电子设备,其特征在于,所述电子设备包括:9. An electronic device, characterized in that the electronic device comprises: 至少一个处理器;以及at least one processor; and 与所述至少一个处理器通信连接的存储器;其中,a memory communicatively coupled to the at least one processor; wherein, 所述存储器存储有可被所述至少一个处理器执行的计算机程序,所述计算机程序被所述至少一个处理器执行,以使所述至少一个处理器能够执行权利要求1-7中任一项所述的温度场分布的计算方法。The memory stores a computer program executable by the at least one processor, the computer program is executed by the at least one processor, so that the at least one processor can perform any one of claims 1-7 The calculation method of the temperature field distribution. 10.一种计算机可读存储介质,其特征在于,所述计算机可读存储介质存储有计算机指令,所述计算机指令用于使处理器执行时实现权利要求1-7中任一项所述的温度场分布的计算方法。10. A computer-readable storage medium, wherein the computer-readable storage medium stores computer instructions, and the computer instructions are used to enable a processor to implement the method described in any one of claims 1-7 when executed. Calculation method of temperature field distribution.
CN202310303876.2A 2023-03-24 2023-03-24 Temperature field distribution calculation method and device, electronic equipment and medium Pending CN116305363A (en)

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