CN113705037A - Temperature field simulation method and device for indoor air-core reactor - Google Patents
Temperature field simulation method and device for indoor air-core reactor Download PDFInfo
- Publication number
- CN113705037A CN113705037A CN202110849686.1A CN202110849686A CN113705037A CN 113705037 A CN113705037 A CN 113705037A CN 202110849686 A CN202110849686 A CN 202110849686A CN 113705037 A CN113705037 A CN 113705037A
- Authority
- CN
- China
- Prior art keywords
- core reactor
- indoor air
- reactor
- simulation
- model
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 238000004088 simulation Methods 0.000 title claims abstract description 98
- 238000000034 method Methods 0.000 title claims abstract description 34
- 239000000463 material Substances 0.000 claims abstract description 18
- 238000005538 encapsulation Methods 0.000 claims abstract description 15
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 11
- 239000010959 steel Substances 0.000 claims abstract description 11
- 238000004804 winding Methods 0.000 claims description 18
- 238000004458 analytical method Methods 0.000 claims description 10
- 238000003860 storage Methods 0.000 claims description 9
- 239000012530 fluid Substances 0.000 claims description 8
- 238000004806 packaging method and process Methods 0.000 claims description 8
- 238000009826 distribution Methods 0.000 claims description 6
- 238000004364 calculation method Methods 0.000 claims description 5
- 230000005484 gravity Effects 0.000 claims description 4
- 238000012546 transfer Methods 0.000 claims description 4
- 230000007704 transition Effects 0.000 claims description 4
- 230000005284 excitation Effects 0.000 claims description 3
- 239000003990 capacitor Substances 0.000 claims description 2
- 238000000638 solvent extraction Methods 0.000 claims description 2
- 238000013461 design Methods 0.000 abstract description 4
- 238000005094 computer simulation Methods 0.000 abstract 1
- 238000010586 diagram Methods 0.000 description 13
- 230000006870 function Effects 0.000 description 8
- 238000004590 computer program Methods 0.000 description 7
- 238000012545 processing Methods 0.000 description 5
- 241000239290 Araneae Species 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 2
- 239000000696 magnetic material Substances 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000005855 radiation Effects 0.000 description 2
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 230000017525 heat dissipation Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 239000011810 insulating material Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 229910052755 nonmetal Inorganic materials 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 230000006641 stabilisation Effects 0.000 description 1
- 238000011105 stabilization Methods 0.000 description 1
Images
Classifications
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F30/00—Computer-aided design [CAD]
- G06F30/20—Design optimisation, verification or simulation
- G06F30/23—Design optimisation, verification or simulation using finite element methods [FEM] or finite difference methods [FDM]
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F30/00—Computer-aided design [CAD]
- G06F30/10—Geometric CAD
- G06F30/13—Architectural design, e.g. computer-aided architectural design [CAAD] related to design of buildings, bridges, landscapes, production plants or roads
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F2119/00—Details relating to the type or aim of the analysis or the optimisation
- G06F2119/08—Thermal analysis or thermal optimisation
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Geometry (AREA)
- Theoretical Computer Science (AREA)
- Computer Hardware Design (AREA)
- General Physics & Mathematics (AREA)
- Evolutionary Computation (AREA)
- General Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Computational Mathematics (AREA)
- Mathematical Analysis (AREA)
- Mathematical Optimization (AREA)
- Pure & Applied Mathematics (AREA)
- Management, Administration, Business Operations System, And Electronic Commerce (AREA)
Abstract
The invention discloses a temperature field simulation method and device of an indoor air-core reactor, and belongs to the field of finite element simulation modeling methods. The simulation method comprises the following steps: acquiring geometric parameters, material attributes and indoor working condition information of an indoor air-core reactor of an engineering drawing; establishing a reactor geometric model including an air-core reactor model, a surrounding electrical equipment model and a house steel beam structure model according to drawing parameters; calculating the encapsulation loss of each layer of the reactor through electromagnetic simulation; setting boundary conditions according to the physical model and indoor working conditions; carrying out mesh division on the geometric model; and solving the model to obtain temperature field simulation data and a cloud picture. The invention can judge the temperature influence of the indoor reactor on the indoor reactor and the surrounding environment during operation, optimizes the design of the reactor and has strong practicability.
Description
Technical Field
The invention relates to a temperature field simulation method and device of an indoor air-core reactor, and belongs to the technical field of electrical design.
Background
Compared with the traditional iron core reactor, the dry type air core reactor has strong saturation resistance and good linearity, is widely applied to an electric power system, plays important roles of voltage stabilization, filtering, current limiting, reactive compensation and the like, and improves the safety and the stability of the electric power system.
However, due to the fact that the local temperature of the air-core reactor is too high for various reasons, the insulating material of the air-core reactor gradually loses the original mechanical property and insulating property, the service life of the reactor is seriously influenced, even faults and phenomena such as burning loss occur, and the safety and stability of a power grid are greatly threatened. Meanwhile, accidents such as branch discharging, slipping flashover, local breakdown, turn-to-turn short circuit and burning loss frequently occur on the outer surface of the outdoor dry type air-core reactor, and new unsafe factors are brought to a power system.
Therefore, the research on the temperature field and the fluid field of the indoor dry-type air-core reactor has important significance on the improvement of the performance of the reactor and the online monitoring of the temperature.
Disclosure of Invention
The invention aims to overcome the defects in the prior art, provides a temperature field simulation method and device of an indoor air-core reactor, and ensures the performance and the operation safety of a dry-type air-core reactor.
In order to achieve the purpose, the invention is realized by adopting the following technical scheme:
in a first aspect, the invention provides a temperature field simulation method of an indoor air-core reactor, which comprises the following steps:
acquiring engineering drawing parameters of a project to be simulated, wherein the engineering drawing parameters comprise geometrical parameters of an indoor air-core reactor, material attributes and indoor working condition information;
establishing an indoor air-core reactor simulation model according to engineering drawing parameters, wherein the indoor air-core reactor simulation model comprises an air-core reactor model, a surrounding electrical equipment model and a house steel beam structure model;
performing electromagnetic simulation on the reactor according to the indoor air-core reactor simulation model, and calculating the encapsulation loss of each layer of the reactor, wherein the encapsulation loss of each layer of the reactor comprises the resistance loss and the eddy current loss of a winding;
setting boundary conditions and basic parameters of thermal simulation according to indoor working condition information;
carrying out grid division on the indoor air-core reactor simulation model, and decomposing a solving area into a proper number of units;
and taking the resistance loss and the eddy current loss of the winding as heat source parameters, and carrying out thermal simulation analysis on the indoor air-core reactor model after the grid division to obtain temperature field data and a temperature field-fluid field distribution cloud chart of the dry-type air-core reactor body and other indoor equipment.
Further, the geometric parameters of the indoor air-core reactor comprise the height of the air-core reactor, the inner diameter and the outer diameter of each packaging layer, the number of packaging layers, the height of the upper and lower star frames and the width of an air passage; the material properties comprise materials used by parts of the air-core reactor and other electrical equipment and building structure materials; the other electrical equipment comprises a lightning arrester, a grounding switch, a parallel capacitor and a current transformer; the indoor operation condition information comprises indoor temperature, inlet and outlet wind speed, rated voltage and rated current of the reactor.
Further, the method for establishing the indoor air-core reactor simulation model according to the engineering drawing parameters comprises the following steps:
based on a Maxwell 3D module in ANSYS Workbench finite element analysis software, an indoor air-core reactor encapsulating layer is drawn into a circular cylindrical tubular structure, and the actual size is established as 1: 1, and other electrical equipment and house steel beam structure models.
Further, the method for performing electromagnetic simulation on the electric reactor according to the indoor air-core electric reactor simulation model and respectively calculating the encapsulation loss of each layer of the electric reactor comprises the following steps:
winding sections of each packaging layer of the indoor air-core reactor are taken in the Maxwell 3D magnetic field module, current excitation with the phase difference of 120 degrees is added respectively, and resistance loss and eddy current loss in each layer of winding are obtained through electromagnetic simulation.
Further, the method for setting the boundary conditions and the basic parameters according to the indoor working condition information comprises the following steps:
importing the indoor air reactor model into an ANSYS Workbench finite element simulation software Icepak module, and setting a calculation region, wall data and boundary condition parameters in a shell function module (cabin); setting material properties and heat source data for CAD Object components in the indoor air-core reactor simulation model in Blocks; setting solver parameters of thermal simulation, wherein the solver parameters comprise: solving type, flow field analysis, heat transfer mode, gravity vector and maximum iteration step number.
Setting solver parameters of thermal simulation, wherein the solver parameters comprise: solving type, flow field analysis, heat transfer mode, gravity vector and maximum iteration step number.
Further, the network partitioning method includes:
based on an ANSYS Workbench finite element analysis software Icepak module, Mesh grid division is used for carrying out grid unit type parameter setting on an indoor air-core reactor simulation model, and grid quality is checked after grid generation so as to meet the solving precision;
assembling Assembly to the indoor air-core reactor simulation model to subdivide grids, setting the size of an Assembly transition area, and setting the size of the Assembly grids;
and assembling an Assembly function module (Assembly) for the indoor air-core reactor simulation model to subdivide the grids, and setting the size of the Assembly transition area and the size of the Assembly grids.
Further, the grid cell type is hexahedral dominant mesh-HD, and the maximum grid size Max element size in the three directions X, Y, and Z is set to 1/20 of the size of the bin in each direction.
In a second aspect, the present invention provides a temperature field simulation apparatus for an indoor air-core reactor, the apparatus comprising:
an information acquisition module: the simulation system is used for acquiring engineering drawing parameters of a project to be simulated, wherein the engineering drawing parameters comprise geometric parameters, material attributes and indoor working condition information of an indoor air-core reactor;
a modeling module: the indoor air-core reactor simulation model is established according to engineering drawing parameters and comprises an air-core reactor model, a surrounding electrical equipment model and a house steel beam structure model;
an electromagnetic simulation module: the indoor air-core reactor simulation model is used for performing electromagnetic simulation on the reactor according to the indoor air-core reactor simulation model, and calculating the encapsulation loss of each layer of the reactor, wherein the encapsulation loss of each layer of the reactor comprises the resistance loss and the eddy current loss of a winding;
a parameter setting module: the indoor air-core reactor simulation model is used for setting boundary conditions and basic parameters according to indoor working condition information and carrying out grid division on the indoor air-core reactor simulation model;
a thermal simulation module: and the method is used for performing thermal simulation analysis on the indoor air-core reactor model by taking the resistance loss and the eddy current loss of the winding as heat source parameters to obtain temperature field data and a temperature field-fluid field distribution cloud chart of the dry-type air-core reactor body and other indoor equipment.
In a third aspect, the invention provides a temperature field simulation device of an indoor air-core reactor, which comprises a processor and a storage medium;
the storage medium is used for storing instructions;
the processor is configured to operate in accordance with the instructions to perform the steps of the method of the first aspect.
Compared with the prior art, the invention has the following beneficial effects:
the invention can judge the temperature influence of the indoor reactor on the indoor reactor and the surrounding environment during operation, optimizes the design of the reactor and has strong practicability.
Drawings
Fig. 1 is a schematic flow diagram of a simulation model of an indoor air-core reactor and a temperature field simulation method provided by the invention.
FIG. 2 is a schematic diagram of a simulation model of an indoor air-core reactor provided by the invention;
FIG. 3 is a loss diagram of No. 4 air core reactor;
FIG. 4 is a diagram of simulation parameter settings;
fig. 5 is a mesh division parameter setting diagram.
Detailed Description
The invention is further described below with reference to the accompanying drawings. The following examples are only for illustrating the technical solutions of the present invention more clearly, and the protection scope of the present invention is not limited thereby.
The first embodiment is as follows:
the embodiment provides a temperature field simulation method of an indoor air-core reactor, which comprises the following steps:
step 1: the geometric parameters, material properties and indoor equipment operation condition information of the indoor reactor are obtained, and the information is shown in the following table:
TABLE 1 geometric parameter table of indoor air core reactor
TABLE 2 material attribute table for indoor air-core reactor and other equipments
TABLE 3 indoor working condition information table
| Ambient temperature (. degree. C.) | 40 |
| Radiation temperature (. degree. C.) | 40 |
| Inlet and outlet wind speed (m/s) | 2 |
Step 2: and constructing a geometric model of the indoor air-core reactor, a surrounding electrical equipment model and a house steel beam structure model, wherein the geometric model not only contains an indoor air-core reactor body model, but also contains other metal, magnetic materials or equipment models such as an electrical equipment model and a house steel beam structure, and the nonmetal and magnetic material models are not involved.
And constructing an indoor air-core reactor simulation model by adopting a Maxwell 3D module in ANSYS Workbench finite element analysis software. Specifically, the envelope is drawn into a circular cylindrical structure in a Maxwell 3D magnetic field module, and the actual size is set to be 1: 1, and indoor other electrical equipment and house steel beam structure models.
And step 3: based on a Maxwell 3D module in ANSYS Workbench finite element analysis software, firstly performing electromagnetic simulation on a reactor, taking a winding section for each packaging layer of an indoor hollow reactor in the Maxwell 3D magnetic field module, respectively adding 80KA current excitation with a phase difference of 120 degrees, respectively calculating the packaging loss of each layer of the two types of reactors, including the resistance loss and the eddy current loss of a winding, and the expression is as follows:
P＝PR+PWL＝I2R+PWL
wherein, P is the total loss of the reactor; pRIs the resistive loss of the reactor; pWLIs the eddy current loss of the reactor; i is rated current of the reactor; r is the resistance value of the reactor; the resistive losses and eddy current losses of the windings are input when the properties of each part in the model are compiled in icepak.
Taking the air-core reactor No. 4 in fig. 1 as an example, the loss is shown in fig. 3, in which the lower layer spider loss, the upper layer spider loss, the shielding aluminum plate loss, the outer layer encapsulation loss, and the inner layer encapsulation loss are shown from top to bottom, respectively.
And 4, step 4: importing the geometric model into an Icepak module of an ANSYS Workbench platform, setting boundary conditions and basic parameters according to indoor working conditions, and performing grid division according to a set model, wherein as shown in fig. 4, the specific implementation steps of simulation parameter setting are as follows:
A. the calculation region and the wall surface data are set in bin: cabinet is a shell function module in an Icepak module of ANSYS Workbench finite element simulation software
Wherein the calculation region is set as follows: assuming that the characteristic dimension of an assembly body composed of the geometric model is L, the space above the assembly body is set to be 2L, and the space around the assembly body is set to be 0.5L.
Wherein the wall data is set as follows: and setting the X-axis direction of the geometric model as an Opening attribute of Opening, and keeping the Wall attribute on the rest Wall surfaces.
B. Material properties and heat source data are set in Blocks:
wherein the material properties are set in sequence according to table 2 above;
and 3, sequentially setting heat source data according to the loss result calculated by the electromagnetic simulation in the step 3, namely inputting the resistance loss and the eddy current loss of the winding when part of attributes in the icepak editing model.
C. And (3) carrying out parameter setting such as grid unit types on the geometric model by using Mesh grid division in an ANSYS Workbench finite element analysis software Icepak module, and checking the grid quality after generating the grid to meet the solving precision. The grid type adopts hexahedron dominant Mesher-HD, X, Y, Z maximum grid size Max element size in three directions is set as 1/20 of the size of the cabin in each direction; assembling Assembly for the geometric model of the subdivision grid pair, setting the size of the Assembly transition region, and setting the size of the Assembly grid, as shown in FIG. 5. The Assembly is a set function module in an ANSYS Workbench finite element simulation software Icepak module; the mesh division is to realize discretization of the model so that the model becomes a finite element. The solution area is decomposed into a proper number of cells which can obtain accurate values, and the cells are mutually constrained and connected to form the whole structure. The quality of grid division directly determines the reliability of a calculation result, and for a complex simulation model, fine grid division is needed.
D. Setting solving parameters and steps;
setting the parameters of a Solver, wherein the parameters comprise:
solving type: a temperature field and a fluid field;
flow field analysis: turbulence model Zero equalization;
the heat transfer mode is as follows: natural convection and radiation heat dissipation;
gravity vector: negative Z-axis, -9.80665m/s 2;
maximum number of iteration steps: 5000 times;
and 5: and importing the indoor air-core reactor grid model into a preset temperature field simulation model for simulation analysis to obtain temperature field data, temperature field-fluid field data and a distribution cloud chart of the indoor air-core reactor body and other indoor equipment.
Example two:
the embodiment provides a temperature field simulation device of an indoor air-core reactor, which comprises:
an information acquisition module: the simulation system is used for acquiring engineering drawing parameters of a project to be simulated, wherein the engineering drawing parameters comprise geometric parameters, material attributes and indoor working condition information of an indoor air-core reactor;
a modeling module: the indoor air-core reactor simulation model is established according to engineering drawing parameters and comprises an air-core reactor model, a surrounding electrical equipment model and a house steel beam structure model;
an electromagnetic simulation module: the indoor air-core reactor simulation model is used for performing electromagnetic simulation on the reactor according to the indoor air-core reactor simulation model, and calculating the encapsulation loss of each layer of the reactor, wherein the encapsulation loss of each layer of the reactor comprises the resistance loss and the eddy current loss of a winding;
a parameter setting module: the indoor air-core reactor simulation model is used for setting boundary conditions and basic parameters according to indoor working condition information and carrying out grid division on the indoor air-core reactor simulation model;
a thermal simulation module: and the method is used for performing thermal simulation analysis on the indoor air-core reactor model by taking the resistance loss and the eddy current loss of the winding as heat source parameters to obtain temperature field data and a temperature field-fluid field distribution cloud chart of the dry-type air-core reactor body and other indoor equipment.
Example three:
the embodiment of the invention provides a temperature field simulation device of an indoor air-core reactor, which comprises a processor and a storage medium, wherein the processor is used for processing the temperature field simulation device;
the storage medium is used for storing instructions;
the processor is configured to operate in accordance with the instructions to perform the steps of the method of embodiment one.
Compared with the prior art, the invention has the following beneficial effects:
the invention can judge the temperature influence of the indoor reactor on the indoor reactor and the surrounding environment during operation, optimizes the design of the reactor and has strong practicability.
As will be appreciated by one skilled in the art, embodiments of the present application may be provided as a method, system, or computer program product. Accordingly, the present application may take the form of an entirely hardware embodiment, an entirely software embodiment or an embodiment combining software and hardware aspects. Furthermore, the present application may take the form of a computer program product embodied on one or more computer-usable storage media (including, but not limited to, disk storage, CD-ROM, optical storage, and the like) having computer-usable program code embodied therein.
The present application is described with reference to flowchart illustrations and/or block diagrams of methods, apparatus (systems), and computer program products according to embodiments of the application. It will be understood that each flow and/or block of the flow diagrams and/or block diagrams, and combinations of flows and/or blocks in the flow diagrams and/or block diagrams, can be implemented by computer program instructions. These computer program instructions may be provided to a processor of a general purpose computer, special purpose computer, embedded processor, or other programmable data processing apparatus to produce a machine, such that the instructions, which execute via the processor of the computer or other programmable data processing apparatus, create means for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.
These computer program instructions may also be stored in a computer-readable memory that can direct a computer or other programmable data processing apparatus to function in a particular manner, such that the instructions stored in the computer-readable memory produce an article of manufacture including instruction means which implement the function specified in the flowchart flow or flows and/or block diagram block or blocks.
These computer program instructions may also be loaded onto a computer or other programmable data processing apparatus to cause a series of operational steps to be performed on the computer or other programmable apparatus to produce a computer implemented process such that the instructions which execute on the computer or other programmable apparatus provide steps for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.
The above description is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, several modifications and variations can be made without departing from the technical principle of the present invention, and these modifications and variations should also be regarded as the protection scope of the present invention.
Claims (9)
1. A temperature field simulation method of an indoor air-core reactor is characterized by comprising the following steps:
acquiring engineering drawing parameters of a project to be simulated, wherein the engineering drawing parameters comprise geometrical parameters of an indoor air-core reactor, material attributes and indoor working condition information;
establishing an indoor air-core reactor simulation model according to engineering drawing parameters, wherein the indoor air-core reactor simulation model comprises an air-core reactor model, a surrounding electrical equipment model and a house steel beam structure model;
performing electromagnetic simulation on the reactor according to the indoor air-core reactor simulation model, and calculating the encapsulation loss of each layer of the reactor, wherein the encapsulation loss of each layer of the reactor comprises the resistance loss and the eddy current loss of a winding;
setting boundary conditions and basic parameters of thermal simulation according to indoor working condition information;
carrying out grid division on the indoor air-core reactor simulation model, and decomposing a solving area into a proper number of units;
and taking the resistance loss and the eddy current loss of the winding as heat source parameters, and carrying out thermal simulation analysis on the indoor air-core reactor model after the grid division to obtain temperature field data and a temperature field-fluid field distribution cloud chart of the dry-type air-core reactor body and other indoor equipment.
2. An indoor air-core reactor temperature field simulation method according to claim 1, wherein the indoor air-core reactor geometric parameters comprise height of the air-core reactor, inner diameter and outer diameter of each packaging layer, number of packaging layers, height of upper and lower star frames, and air channel width; the material properties comprise materials used by parts of the air-core reactor and other electrical equipment and building structure materials; the indoor operation condition information comprises indoor temperature, inlet and outlet wind speed, rated voltage and rated current of the reactor.
3. The indoor air-core reactor temperature field simulation method according to claim 2, wherein the method for establishing the indoor air-core reactor simulation model according to the engineering drawing parameters comprises the following steps:
based on a Maxwell 3D module in ANSYS Workbench finite element analysis software, an indoor air-core reactor encapsulating layer is drawn into a circular cylindrical tubular structure, and the actual size is established as 1: 1, an indoor air-core reactor model, and other electrical equipment and a house steel beam structure model; the other electrical equipment comprises an arrester, a grounding switch, a parallel capacitor and a current transformer.
4. An indoor air-core reactor temperature field simulation method according to claim 3, wherein the method for performing electromagnetic simulation on the reactor according to the indoor air-core reactor simulation model and calculating the encapsulation loss of each layer of the reactor respectively comprises the following steps:
winding sections of each packaging layer of the indoor air-core reactor are taken in the Maxwell 3D magnetic field module, current excitation with the phase difference of 120 degrees is added respectively, and resistance loss and eddy current loss in each layer of winding are obtained through electromagnetic simulation.
5. An indoor air-core reactor temperature field simulation method according to claim 1, wherein the method for setting boundary conditions and basic parameters of thermal simulation according to indoor working condition information comprises the following steps:
importing the indoor air reactor model into an ANSYS Workbench finite element simulation software Icepak module, and setting a calculation region, wall data and boundary condition parameters in a shell function module (cabin); setting material properties and heat source data for CAD Object components in the indoor air-core reactor simulation model in Blocks; setting solver parameters of thermal simulation, wherein the solver parameters comprise: solving type, flow field analysis, heat transfer mode, gravity vector and maximum iteration step number.
6. An indoor air core reactor temperature field simulation method according to claim 1, wherein the network partitioning method comprises:
based on an ANSYS Workbench finite element analysis software Icepak module, Mesh grid division is used for carrying out grid unit type parameter setting on an indoor air-core reactor simulation model, and grid quality is checked after grid generation so as to meet the solving precision;
and assembling an Assembly function module (Assembly) for the indoor air-core reactor simulation model to subdivide the grids, and setting the size of the Assembly transition area and the size of the Assembly grids.
7. An indoor air-core reactor temperature field simulation method according to claim 6, characterized in that the grid cell type is hexahedral dominant Mesher-HD, and the maximum grid size Max element size in the three directions X, Y, Z is set to 1/20 of the size of cabin in each direction.
8. An indoor air core reactor temperature field simulation device, the device comprising:
an information acquisition module: the simulation system is used for acquiring engineering drawing parameters of a project to be simulated, wherein the engineering drawing parameters comprise geometric parameters, material attributes and indoor working condition information of an indoor air-core reactor;
a modeling module: the indoor air-core reactor simulation model is established according to engineering drawing parameters and comprises an air-core reactor model, a surrounding electrical equipment model and a house steel beam structure model;
an electromagnetic simulation module: the indoor air-core reactor simulation model is used for performing electromagnetic simulation on the reactor according to the indoor air-core reactor simulation model, and calculating the encapsulation loss of each layer of the reactor, wherein the encapsulation loss of each layer of the reactor comprises the resistance loss and the eddy current loss of a winding;
a parameter setting module: the indoor air-core reactor simulation model is used for setting boundary conditions and basic parameters according to indoor working condition information and carrying out grid division on the indoor air-core reactor simulation model;
a thermal simulation module: and the method is used for performing thermal simulation analysis on the indoor air-core reactor model by taking the resistance loss and the eddy current loss of the winding as heat source parameters to obtain temperature field data and a temperature field-fluid field distribution cloud chart of the dry-type air-core reactor body and other indoor equipment.
9. The temperature field simulation device of the indoor air-core reactor is characterized by comprising a processor and a storage medium;
the storage medium is used for storing instructions;
the processor is configured to operate in accordance with the instructions to perform the steps of the method according to any one of claims 1 to 7.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110849686.1A CN113705037B (en) | 2021-07-27 | 2021-07-27 | Temperature field simulation method and device for indoor air-core reactor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110849686.1A CN113705037B (en) | 2021-07-27 | 2021-07-27 | Temperature field simulation method and device for indoor air-core reactor |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN113705037A true CN113705037A (en) | 2021-11-26 |
| CN113705037B CN113705037B (en) | 2023-11-03 |
Family
ID=78650588
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110849686.1A Active CN113705037B (en) | 2021-07-27 | 2021-07-27 | Temperature field simulation method and device for indoor air-core reactor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113705037B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115544814A (en) * | 2022-11-30 | 2022-12-30 | 南方电网科学研究院有限责任公司 | Reactor magnetic field analysis method, device and equipment and readable storage medium |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109086514A (en) * | 2018-07-25 | 2018-12-25 | 国网江苏省电力有限公司检修分公司 | A kind of reactor Calculation Method of Temperature Field based on multiple physical field coupling |
| CN110414080A (en) * | 2019-07-08 | 2019-11-05 | 三峡大学 | A kind of design method for improving reactor and respectively encapsulating coil heat heat-sinking capability |
| CN110765685A (en) * | 2019-10-18 | 2020-02-07 | 南方电网科学研究院有限责任公司 | Simulation method and device for multi-physical-field coupling of reactor and storage medium |
| CN111062153A (en) * | 2019-11-11 | 2020-04-24 | 南方电网科学研究院有限责任公司 | Dry-type air-core reactor magnetic field analysis method and device and storage medium |
| CN112380751A (en) * | 2020-11-20 | 2021-02-19 | 三峡大学 | Design method of reactor sound insulation device and rain-proof cap |
-
2021
- 2021-07-27 CN CN202110849686.1A patent/CN113705037B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109086514A (en) * | 2018-07-25 | 2018-12-25 | 国网江苏省电力有限公司检修分公司 | A kind of reactor Calculation Method of Temperature Field based on multiple physical field coupling |
| CN110414080A (en) * | 2019-07-08 | 2019-11-05 | 三峡大学 | A kind of design method for improving reactor and respectively encapsulating coil heat heat-sinking capability |
| CN110765685A (en) * | 2019-10-18 | 2020-02-07 | 南方电网科学研究院有限责任公司 | Simulation method and device for multi-physical-field coupling of reactor and storage medium |
| CN111062153A (en) * | 2019-11-11 | 2020-04-24 | 南方电网科学研究院有限责任公司 | Dry-type air-core reactor magnetic field analysis method and device and storage medium |
| CN112380751A (en) * | 2020-11-20 | 2021-02-19 | 三峡大学 | Design method of reactor sound insulation device and rain-proof cap |
Non-Patent Citations (3)
| Title |
|---|
| YAN XIUKE 等: "Research on Magnetic Field and Temperature Field of Air Core Power Reactor", 《2011 INTERNATIONAL CONFERENCE ON ELECTRICAL MACHINES AND SYSTEMS》, pages 1 - 4 * |
| 姜志鹏: "干式空心电抗器多物理场分析及应用研究", 《中国博士学位论文全文数据库 工程科技Ⅱ辑》, no. 1, pages 042 - 64 * |
| 王珊 等: "叠装式干式空心电抗器温度场仿真与实验分析", 《电测与仪表》, vol. 55, no. 18, pages 9 - 13 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115544814A (en) * | 2022-11-30 | 2022-12-30 | 南方电网科学研究院有限责任公司 | Reactor magnetic field analysis method, device and equipment and readable storage medium |
Also Published As
| Publication number | Publication date |
|---|---|
| CN113705037B (en) | 2023-11-03 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN109086514B (en) | Reactor temperature field calculation method based on multi-physical field coupling | |
| CN103617816B (en) | The measuring method of reactor core power distribution | |
| CN111062153A (en) | Dry-type air-core reactor magnetic field analysis method and device and storage medium | |
| CN112765848A (en) | Method for determining convective heat transfer coefficient of outer shell in multi-physical-field calculation of transformer | |
| CN113705037B (en) | Temperature field simulation method and device for indoor air-core reactor | |
| Iskender et al. | An improved nonlinear thermal model for MV/LV prefabricated oil-immersed power transformer substations | |
| CN108418206A (en) | Dry smoothing reactor loss computing method and device and appraisal procedure and device | |
| Li et al. | Temperature rise test and thermal-fluid coupling simulation of an oil-immersed autotransformer under DC bias | |
| CN109269670A (en) | The calculation method and system of transformer top oil temperature when three-phase current unbalance | |
| CN116776691A (en) | Method and device for constructing internal temperature field test model of oil immersed transformer | |
| CN103678808A (en) | Transformer substation electromagnetic field simulation method based on component library | |
| Castaneda Hernandez et al. | Analytic formulation for the calculation of leakage reactance in wound-core transformers | |
| Abdali et al. | Magnetic-thermal analysis of distribution transformer: Validation via optical fiber sensors and thermography | |
| CN111553105B (en) | Method for predicting temperature rise hot spot of dry smoothing reactor | |
| CN113392555A (en) | Dry-type transformer temperature rise analysis method and system | |
| Liu et al. | Structure parameters optimization of the rain cover and ventilation duct of dry air core reactor under the forced air cooling condition | |
| CN118168686A (en) | Converter transformer winding temperature monitoring method, device, equipment and medium | |
| Yu et al. | Research on finite element model of air-core reactor based on magnetic-thermal coupling simulation | |
| Melka et al. | Effective cooling of a distribution transformer using biodegradable oils at different climate conditions | |
| Lei et al. | Three-Dimensional Temperature Field Simulation and Analysis of Natural Oil Circulation Transformer | |
| Lu et al. | Position Optimization Simulation of High Voltage Bushing Outlet Stress Cone Based on Simdroid Software | |
| Díaz Flórez et al. | Novel technique for the calculation of eddy current losses and Lorentz forces in foil winding transformers | |
| CN107451351B (en) | Method and device for analyzing influence of iron core fragments on performance of amorphous alloy transformer | |
| Tong et al. | Electromagnetic-thermal coupled analysis of a 10 kV silicone rubber cast dry-type transformer | |
| Ramirez | Optimized Insulation Design of Power Transformer Windings under Fast Voltage Pulses |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |