CN112557891B - Fault detection method and device for high-voltage switch equipment - Google Patents
Fault detection method and device for high-voltage switch equipment Download PDFInfo
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Abstract
The invention discloses a fault detection method and a fault detection device for high-voltage switchgear, and relates to entity drawing software and finite element analysis software, wherein the method comprises the following steps: responding to an input fault detection request through entity drawing software, and acquiring equipment parameters of the high-voltage switch equipment to be detected; constructing a target high-voltage switchgear model based on the equipment parameters and preset high-voltage switchgear models of various models through entity drawing software; the fault analysis process is executed on the target high-voltage switchgear model through finite element analysis software, and the fault type corresponding to the high-voltage switchgear to be detected is determined.
Description
Technical Field
The invention relates to the technical field of fault detection, in particular to a fault detection method and device for high-voltage switch equipment.
Background
High-voltage switchgear is an important component of modern electrical power systems, and the safe and reliable operation thereof directly affects the continuity of the safe operation supply of the electrical power.
In order to effectively reduce the faults of the high-voltage switch equipment, the reasons of the faults of the high-voltage switch equipment need to be deeply analyzed, and the simulation of the faults of the high-voltage switch equipment is very necessary.
A large amount of part models and related information are often generated in the process of carrying out simulation design simulation analysis on high-voltage switchgear by domestic power system companies and high-voltage switchgear enterprises, the development of parts is low, the management, the maintenance and the expansion are difficult, the design efficiency and the visualization degree are low, in the process of importing the three-dimensional design software model into the simulation software, file format conversion operation, repeated parameter configuration and the like are needed, the labor, material resources and product development cost are greatly wasted, the existing resources and information cannot be fully utilized and shared, and the requirement of rapid product development design simulation is difficult to meet.
Disclosure of Invention
The invention provides a fault detection method and a fault detection device for high-voltage switch equipment, and solves the technical problems of low design efficiency and visualization degree, complex simulation process operation and high cost of a high-voltage switch fault detection system in the prior art.
The invention provides a fault detection method of high-voltage switchgear, which relates to entity drawing software and finite element analysis software, and comprises the following steps:
responding to an input fault detection request through the entity drawing software, and acquiring equipment parameters of the high-voltage switch equipment to be detected;
constructing a target high-voltage switchgear model based on the equipment parameters and preset high-voltage switchgear models of various models through the entity drawing software;
and executing a fault analysis process on the target high-voltage switchgear model through the finite element analysis software, and determining the fault type corresponding to the high-voltage switchgear to be detected.
Optionally, before the step of constructing, by the entity mapping software, a target high-voltage switchgear model based on the equipment parameters and preset multiple models of high-voltage switchgear models, the method further includes:
respectively constructing equipment part models corresponding to the normalized features by the entity drawing software based on the normalized features of a plurality of preset high-voltage switchgear parts;
and generating the preset high-voltage switch equipment models with various models by adopting a plurality of equipment part models through the entity drawing software.
Optionally, the entity drawing software includes a database management module, and the device parameters include device model, physical parameters of the component, assembly relationship of the component, and deformation parameters of the component; the step of constructing a target high-voltage switchgear model based on the equipment parameters and preset high-voltage switchgear models by the entity drawing software comprises the following steps:
selecting an initial high-voltage switchgear model from preset high-voltage switchgear models of various models based on the equipment model through the database management module;
and adjusting the equipment part model of the initial high-voltage switch equipment model by the database management module based on the part physical parameters, the part assembling relation and the part deformation parameters to generate a target high-voltage switch equipment model.
Optionally, the database management module includes a parts database for storing the equipment component model.
Optionally, the fault analysis process includes an electromagnetic field analysis process, a temperature field analysis process, and an airflow field analysis process, and the step of determining the fault type corresponding to the high-voltage switching device to be detected by executing the fault analysis process on the target high-voltage switching device model through the finite element analysis software includes:
performing an electromagnetic field analysis process on the target high-voltage switchgear model through the finite element analysis software to determine whether the high-voltage switchgear to be detected has an electromagnetic fault;
performing a temperature field analysis process on the target high-voltage switchgear model through the finite element analysis software, and determining whether the high-voltage switchgear to be detected has a temperature fault;
and performing an airflow field analysis process on the target high-voltage switchgear model through the finite element analysis software to determine whether the high-voltage switchgear to be detected has airflow faults or not.
Optionally, the step of determining whether the high-voltage switchgear to be detected has an electromagnetic fault by performing an electromagnetic field analysis process on the target high-voltage switchgear model through the finite element analysis software includes:
performing Boolean operation by the finite element analysis software on the basis of the target high-voltage switch equipment model to obtain a first equipment model;
giving the first equipment model with the insulation medium type and the material attribute corresponding to the high-voltage switch equipment to be detected, and generating a second equipment model;
performing mesh generation operation on the second equipment model to obtain a plurality of model meshes;
calculating magnetic induction intensity, magnetic potential vector and electromagnetic force corresponding to each model grid according to an input excitation signal, and generating a heat generation file corresponding to each model grid;
and if the magnetic induction intensity, the magnetic potential vector or the electromagnetic force does not accord with preset boundary conditions, determining that the high-voltage switch equipment to be detected has electromagnetic faults.
Optionally, the step of determining whether the high-voltage switchgear to be detected has a temperature fault by performing a temperature field analysis process on the target high-voltage switchgear model through the finite element analysis software includes:
setting a temperature load, an initial temperature and a temperature range for the target high-voltage switchgear model through the finite element analysis software, and generating a temperature field distribution cloud chart;
and if the device part model which does not conform to the temperature range exists in the temperature field distribution cloud picture, determining that the high-voltage switch device to be detected has temperature faults.
Optionally, the finite element analysis software further includes a computational fluid dynamics module, and the step of determining whether the high-voltage switchgear to be detected has an airflow fault by performing an airflow field analysis process on the target high-voltage switchgear model through the finite element analysis software includes:
importing the heat generation file as an energy equation source item into the computational fluid dynamics module through the finite element analysis software;
setting airflow field boundary conditions in the computational fluid dynamics module to obtain airflow field output of each model mesh;
and if the output of the airflow field does not accord with the boundary condition of the airflow field, determining that the high-voltage switch equipment to be detected has airflow faults.
Optionally, the high-voltage switchgear to be detected comprises a high-voltage switchgear, a circuit breaker or a gas-insulated metal-enclosed switchgear.
The invention also provides a fault detection device of the high-voltage switch equipment, which comprises entity drawing software and finite element analysis software, wherein the entity drawing software comprises the following components:
the equipment parameter acquisition module is used for responding to an input fault detection request and acquiring equipment parameters of the high-voltage switch equipment to be detected;
the target high-voltage switchgear model building module is used for building a target high-voltage switchgear model based on the equipment parameters;
the finite element analysis software includes:
and the fault type detection module is used for executing a fault analysis process on the target high-voltage switchgear model and determining the fault type corresponding to the high-voltage switchgear to be detected.
According to the technical scheme, the invention has the following advantages:
according to the method, an input fault detection request is responded, input equipment parameters of the high-voltage switchgear to be detected are obtained through entity drawing software, a target high-voltage switchgear model is constructed and obtained based on the equipment parameters, and the target high-voltage switchgear model is led into finite element analysis software to carry out a further fault analysis process so as to determine the fault type corresponding to the high-voltage switchgear to be detected. Therefore, the technical problems that the design efficiency and the visualization degree of a high-voltage switch fault detection system for solving the prior art are low, the simulation process is complex to operate, and the cost is high in the prior art are solved, the fault detection efficiency is effectively improved, and the detection cost is reduced.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without inventive exercise.
Fig. 1 is a flowchart illustrating steps of a fault detection method for a high voltage switchgear according to an embodiment of the present invention;
FIG. 2 is a flow chart of the steps of a method of fault detection for a high voltage switchgear provided in an alternative embodiment of the present invention;
fig. 3 is a flowchart illustrating the overall steps of a fault detection method for a high voltage switchgear according to an embodiment of the present invention;
fig. 4 is a block diagram of a fault detection apparatus for a high-voltage switchgear according to an embodiment of the present invention.
Detailed Description
The embodiment of the invention provides a fault detection method and device of high-voltage switch equipment, which are used for solving the technical problems of low design efficiency and visualization degree, complex operation in a simulation process and high cost of a high-voltage switch fault detection system in the prior art.
High-voltage switch equipment is an electrical appliance with rated voltage of 1kV or above, is mainly used for switching on and off a conductive loop, is a general term formed by connecting a high-voltage switch, corresponding control, measurement, protection and regulation devices, auxiliary parts, shells, supports and other parts and electrical and mechanical parts of the high-voltage switch, and is important control equipment for switching on and off the loop, cutting off and isolating faults, such as a high-voltage circuit breaker, an isolating switch, a load switch, a fuse, a high-voltage switch cabinet and the like.
In order to make the objects, features and advantages of the present invention more obvious and understandable, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the embodiments described below are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1, fig. 1 is a flowchart illustrating a method for detecting a fault of a high voltage switchgear according to an embodiment of the present invention.
The invention provides a fault detection method of high-voltage switchgear, which relates to entity drawing software and finite element analysis software, and comprises the following steps:
in the embodiment of the application, when the high-voltage switch equipment has a fault, a fault detection request can be input by a user, and the equipment parameters of the high-voltage switch equipment to be detected are obtained in response to the fault detection request, so that fault detection of the high-voltage switch equipment to be detected is performed subsequently.
102, constructing a target high-voltage switchgear model based on the equipment parameters and preset high-voltage switchgear models of various types through the entity drawing software;
after the device parameters are acquired, in order to facilitate subsequent detection, entity drawing software can be adopted to select and adjust model parameters from preset high-voltage switch device models of various models by taking the device parameters as a reference, so as to obtain a target high-voltage switch device model.
It should be noted that the entity mapping software may be modeling software such as an interactive CAD/CAM system (UG, Unigraphics NX), and the embodiment of the present application is not limited thereto.
103, executing a fault analysis process on the target high-voltage switchgear model through the finite element analysis software, and determining a fault type corresponding to the high-voltage switchgear to be detected.
In the specific implementation, although the target high-voltage switchgear model can be adjusted and divided at will in the form of a model, the model does not relate to specific operation, and fault simulation cannot be performed, so that after the target high-voltage switchgear model is obtained, the model is led into finite element analysis software to perform a further fault analysis process, and thus the fault type corresponding to the high-voltage switchgear to be detected is determined.
Finite Element Analysis (FEA) simulates real physical systems (geometry and load conditions) using mathematical approximation. With simple and interacting elements (i.e., cells), a finite number of unknowns can be used to approximate a real system of infinite unknowns. Finite element analysis is solved by replacing a complex problem with a simpler one. It considers the solution domain as consisting of a number of small interconnected subdomains called finite elements, assuming a suitable (simpler) approximate solution for each element, and then deducing the overall satisfaction conditions (e.g. structural equilibrium conditions) for solving this domain, to arrive at a solution to the problem. This solution is not an exact solution, but an approximate solution, since the actual problem is replaced by a simpler problem. Most practical problems are difficult to obtain accurate solutions, and finite elements not only have high calculation precision, but also can adapt to various complex shapes, so that the finite element becomes an effective engineering analysis means. Finite elements are those discrete elements that, when grouped together, can represent a virtually continuous domain.
In the embodiment of the application, in response to an input fault detection request, the input equipment parameters of the high-voltage switchgear to be detected are obtained through entity drawing software, a target high-voltage switchgear model is constructed and obtained based on the equipment parameters, and then the target high-voltage switchgear model is led into finite element analysis software to perform a further fault analysis process, so that the fault type corresponding to the high-voltage switchgear to be detected is determined. Therefore, the technical problems that the design efficiency and the visualization degree of a high-voltage switch fault detection system for solving the prior art are low, the simulation process is complex to operate, and the cost is high in the prior art are solved, the fault detection efficiency is effectively improved, and the detection cost is reduced.
Referring to fig. 2, fig. 2 is a flowchart illustrating a method for detecting a fault of a high voltage switchgear according to an alternative embodiment of the present invention.
The invention provides a fault detection method of high-voltage switchgear, which relates to entity drawing software and finite element analysis software, and comprises the following steps:
further, the high-voltage switch equipment to be detected comprises a high-voltage switch cabinet, a circuit breaker or gas-insulated metal-enclosed switch equipment.
In the embodiment of the present application, the specific implementation process of step 201 is similar to step 101, and is not described herein again.
in an example of the present application, since the structure of the high voltage switchgear is complex, modeling is not paid when detecting a fault, and the components of the high voltage switchgear are usually mass produced, so as to improve the efficiency of model construction, corresponding models of the components of the equipment can be constructed by obtaining the normalized characteristics of the existing components of the high voltage switchgear, that is, the specification parameters of the components, so as to facilitate the rapid use of the subsequent modeling of the equipment model.
And 203, generating the preset high-voltage switch equipment models with various models by adopting a plurality of equipment part models through the entity drawing software.
In an example of the present application, a plurality of pre-constructed equipment component models may be obtained by using entity mapping software, virtual assembly and overall assembly are performed by using the equipment component models, and modularization processing is performed on serialized and standardized equipment component models to generate multiple models of high voltage switchgear models, such as a high voltage switchgear model, a circuit breaker model or a gas insulated metal enclosed switchgear model.
in an embodiment of the present application, the entity mapping software includes a database management module, the device parameters include a device model, a component physical parameter, a component assembly relationship, and a component deformation parameter, and the step 204 may include the following sub-steps:
selecting an initial high-voltage switchgear model from preset high-voltage switchgear models of various models based on the equipment model through the database management module;
and adjusting the equipment part model of the initial high-voltage switch equipment model by the database management module based on the part physical parameters, the part assembling relation and the part deformation parameters to generate a target high-voltage switch equipment model.
Optionally, in order to facilitate management of the device component models, a database management module may be integrated in the physical drawing software, and the initial high-voltage switchgear model may be selected from the parts database by the database management module based on the device model. Different high-voltage switch equipment may have different parts, and at the moment, the equipment part model of the initial high-voltage switch equipment model can be adjusted through the database management module based on the physical parameters of the parts, the assembly relation of the parts and the deformation parameters of the parts so as to generate a target high-voltage switch equipment model, so that the model is ensured to have better safety, expandability, shareability and editing flexibility.
It is worth mentioning that the physical parameters of the parts include size, material, density or other physical parameters, the assembly relationship of the parts includes a connection relationship between each part, and the deformation parameters of the parts include parameters such as size of a user-defined device part model.
Further, the database management module includes a parts database for storing the equipment component model.
And step 205, executing a fault analysis process on the target high-voltage switchgear model through the finite element analysis software, and determining a fault type corresponding to the high-voltage switchgear to be detected.
In one example of the present application, where the fault analysis process includes an electromagnetic field analysis process, a temperature field analysis process, and a gas flow field analysis process, step 205 may include the following sub-steps S1-S3:
s1, performing an electromagnetic field analysis process on the target high-voltage switch equipment model through the finite element analysis software, and determining whether the high-voltage switch equipment to be detected has electromagnetic faults or not;
optionally, step S1 may include the following sub-steps:
executing Boolean operation by the finite element analysis software based on the target high-voltage switch equipment model to obtain a first equipment model;
giving the first equipment model with the insulation medium type and the material attribute corresponding to the high-voltage switch equipment to be detected, and generating a second equipment model;
performing mesh generation operation on the second equipment model to obtain a plurality of model meshes;
calculating magnetic induction intensity, magnetic potential vector and electromagnetic force corresponding to each model grid according to an input excitation signal, and generating a heat generation file corresponding to each model grid;
and if the magnetic induction intensity, the magnetic potential vector or the electromagnetic force does not accord with preset boundary conditions, determining that the high-voltage switch equipment to be detected has electromagnetic faults.
In the embodiment of the application, a target high-voltage switch equipment model is led into an electromagnetic field, Boolean operation is performed on the basis of the target high-voltage switch equipment model through finite element analysis software to obtain a first equipment model, then the type and the material attribute of an insulating medium corresponding to the high-voltage switch equipment to be detected are given to each part model in the first equipment model to generate a second equipment model, grid division operation is performed on the second equipment model to divide the second equipment model into a plurality of model grids, magnetic induction intensity, magnetic potential vector and electromagnetic force corresponding to each model grid are calculated according to an input excitation signal, and a heat generation amount file corresponding to each model grid is generated; and if the magnetic induction intensity, the magnetic potential vector or the electromagnetic force does not accord with preset boundary conditions, determining that the high-voltage switch equipment to be detected has electromagnetic faults.
Optionally, if the magnetic induction intensity, the magnetic potential vector, or the electromagnetic force all meet preset boundary conditions, it is determined that the high-voltage switching device to be detected has no electromagnetic fault.
The preset boundary condition can be set as a magnetic induction threshold, a magnetic bit vector threshold and an electromagnetic force threshold, and if the threshold is larger than the threshold, the preset boundary condition is not met.
The boolean operation is a digital symbolic logic derivation method, including union, intersection, and subtraction. The logical operation method is introduced in the graphic processing operation so that a simple basic graphic combination generates a new form and is developed from a two-dimensional Boolean operation to a Boolean operation of a three-dimensional graphic.
S2, performing a temperature field analysis process on the target high-voltage switchgear model through the finite element analysis software, and determining whether the high-voltage switchgear to be detected has temperature faults or not;
optionally, step S2 may include the following sub-steps:
setting a temperature load, an initial temperature and a temperature range for the target high-voltage switchgear model through the finite element analysis software, and generating a temperature field distribution cloud chart;
and if the device part model which does not conform to the temperature range exists in the temperature field distribution cloud picture, determining that the high-voltage switch device to be detected has temperature faults.
In the embodiment of the application, the temperature field distribution cloud chart can be generated through finite element analysis software by setting the temperature load, the initial temperature and the temperature range for the target high-voltage switchgear model. Besides, a temperature analysis type, such as a temperature rise analysis or a temperature drop analysis, may be set. And if the device part model which does not conform to the temperature range exists in the temperature field distribution cloud picture, determining that the high-voltage switch device to be detected has temperature faults.
Optionally, if the device part model which does not conform to the temperature range does not exist in the temperature field distribution cloud picture, it is determined that the high-voltage switch device to be detected does not have a temperature fault.
Wherein, the temperature range can be set by the technical staff according to the actual conditions.
And S3, performing an airflow field analysis process on the target high-voltage switchgear model through the finite element analysis software, and determining whether the high-voltage switchgear to be detected has airflow faults.
Optionally, the finite element analysis software further comprises a computational fluid dynamics module, and step S3 may comprise the sub-steps of:
importing the heat generation file as an energy equation source item into the computational fluid dynamics module through the finite element analysis software;
setting airflow field boundary conditions in the computational fluid dynamics module to obtain airflow field output of each model mesh;
and if the output of the airflow field does not accord with the boundary condition of the airflow field, determining that the high-voltage switch equipment to be detected has airflow faults.
In another example of the present application, it may also be implemented that, for the high-voltage switchgear, by applying an inlet velocity boundary condition, a solid wall surface boundary condition, and a pressure inlet/outlet boundary condition, a pressure cloud map, a flow velocity distribution at an outlet, and the like of the high-voltage switchgear are obtained through simulation analysis by using a general finite element analysis software.
Computational Fluid Dynamics (CFD), a product of the combination of modern hydrodynamics, numerical mathematics and computer science, is a cross-science with powerful life. The method is characterized in that integral and differential terms in a fluid mechanics control equation are approximately expressed into a discrete algebraic form to form an algebraic equation set, and then the discrete algebraic equation set is solved through a computer to obtain a numerical solution on discrete time/space points.
It is worth mentioning that the entity drawing software and the finite element analysis software in the invention can be seamlessly integrated on the same system, thereby increasing the data transmission efficiency between the software.
In the embodiment of the application, in response to an input fault detection request, the input equipment parameters of the high-voltage switchgear to be detected are obtained through entity drawing software, a target high-voltage switchgear model is constructed and obtained based on the equipment parameters, and then the target high-voltage switchgear model is led into finite element analysis software to perform a further fault analysis process, so that the fault type corresponding to the high-voltage switchgear to be detected is determined. Therefore, the technical problems that the design efficiency and the visualization degree of a high-voltage switch fault detection system for solving the prior art are low, the simulation process is complex to operate, and the cost is high in the prior art are solved, the fault detection efficiency is effectively improved, and the detection cost is reduced.
Referring to fig. 3, fig. 3 is a flowchart illustrating the overall steps of a fault detection method for a high voltage switchgear according to an embodiment of the present application.
In the embodiment of the application, a model is established in entity drawing software to obtain a high-voltage switchgear model, the high-voltage switchgear model is led into finite element analysis software and shared, in the first process, Boolean operation is carried out on the led-in high-voltage switchgear model, then material properties and attributes are given to the operated model, mesh subdivision is carried out on the given model through a subdivision network to obtain a model mesh, excitation and boundary conditions are added, and the solution is carried out to determine whether electromagnetic field faults occur and generate a heat generation CSV file as an energy equation source item in the second process; in the second process, the shared model is divided through the division mesh to obtain a model mesh, then a solving domain, namely solving of the temperature field or the airflow field is set, the CSV file is used as an energy equation source item, and after boundary conditions are set, the solving is carried out to determine whether the temperature field and the airflow field are in fault or not.
Among them, CSV (Comma-Separated Values, sometimes also called character-Separated Values because the Separated characters may not be commas) stores table data (numbers and text) in plain text. Plain text means that the file is a sequence of characters, containing no data that must be interpreted like binary digits. CSV files are composed of any number of records, and the records are separated by a certain linefeed character; each record is made up of fields, and the separators between fields are other characters or strings, most commonly commas or tabs. Typically, all records have identical field sequences.
Referring to fig. 4, fig. 4 is a block diagram illustrating a structure of a fault detection apparatus of a high voltage switchgear according to an embodiment of the present disclosure.
The invention also provides a fault detection device of high-voltage switchgear, which comprises entity drawing software 401 and finite element analysis software 402, wherein the entity drawing software 401 comprises:
the equipment parameter acquiring module 4011 is configured to acquire an equipment parameter of the high-voltage switchgear to be detected in response to an input fault detection request;
a target high-voltage switchgear model building module 4012, configured to build a target high-voltage switchgear model based on the equipment parameters;
the finite element analysis software 402 includes:
the fault type detection module 4021 is configured to perform a fault analysis process on the target high-voltage switchgear model, and determine a fault type corresponding to the high-voltage switchgear to be detected.
Optionally, the entity mapping software 401 further includes:
the device part model building module is used for respectively building device part models corresponding to the normalized features based on the normalized features of a plurality of preset high-voltage switch device parts through the entity drawing software;
and the high-voltage switchgear model generation module is used for generating the preset high-voltage switchgear models of various models by adopting a plurality of equipment part models through the entity drawing software.
Optionally, the entity mapping software comprises a database management module, and the device parameters comprise a device model, part physical parameters, part assembly relations and part deformation parameters; the target high-voltage switchgear model building module 4012 includes:
the first calling module is used for calling the database management module to select an initial high-voltage switchgear model from preset high-voltage switchgear models of multiple models based on the equipment model;
and the second calling module is used for calling the database management module to adjust the equipment part model of the initial high-voltage switch equipment model based on the part physical parameters, the part assembling relation and the part deformation parameters so as to generate a target high-voltage switch equipment model.
Optionally, the database management module includes a parts database for storing the equipment component model.
Optionally, the fault analysis process includes an electromagnetic field analysis process, a temperature field analysis process, and an airflow field analysis process, and the fault type detection module 4021 includes:
the electromagnetic fault detection submodule is used for executing an electromagnetic field analysis process on the target high-voltage switch equipment model through the finite element analysis software and determining whether the high-voltage switch equipment to be detected has an electromagnetic fault;
the temperature fault detection submodule is used for executing a temperature field analysis process on the target high-voltage switchgear model through the finite element analysis software and determining whether the high-voltage switchgear to be detected has a temperature fault;
and the airflow fault detection submodule is used for executing an airflow field analysis process on the target high-voltage switchgear model through the finite element analysis software and determining whether the high-voltage switchgear to be detected has airflow faults or not.
Optionally, the electromagnetic fault detection sub-module includes:
the first equipment model generating unit is used for executing Boolean operation on the basis of the target high-voltage switch equipment model through the finite element analysis software to obtain a first equipment model;
the second equipment model generating unit is used for giving the insulation medium type and the material attribute corresponding to the high-voltage switch equipment to be detected to the first equipment model to generate a second equipment model;
the mesh division unit is used for carrying out mesh generation operation on the second equipment model to obtain a plurality of model meshes;
the electromagnetic quantity calculating unit is used for calculating the magnetic induction intensity, the magnetic potential vector and the electromagnetic force corresponding to each model grid according to an input excitation signal and generating a heat generation quantity file corresponding to each model grid;
and the electromagnetic fault determination unit is used for determining that the high-voltage switch equipment to be detected has an electromagnetic fault if the magnetic induction intensity, the magnetic bit vector or the electromagnetic force does not accord with a preset boundary condition.
Optionally, the temperature fault detection sub-module includes:
the temperature field distribution cloud picture generating unit is used for setting temperature load, initial temperature and temperature range for the target high-voltage switchgear model through the finite element analysis software and generating a temperature field distribution cloud picture;
and the temperature fault determination unit is used for determining that the high-voltage switch equipment to be detected has a temperature fault if the equipment part model which does not conform to the temperature range exists in the temperature field distribution cloud picture.
Optionally, the finite element analysis software further comprises a computational fluid dynamics module, the airflow fault detection sub-module comprising:
the leading-in unit is used for leading the heat generation file serving as an energy equation source item into the computational fluid dynamics module through the finite element analysis software;
the airflow field output unit is used for setting airflow field boundary conditions in the computational fluid dynamics module to obtain the airflow field output of each model grid;
and the airflow fault determination unit is used for determining that the high-voltage switch equipment to be detected has airflow faults if the airflow field output does not accord with the airflow field boundary conditions.
Optionally, the high-voltage switchgear to be detected comprises a high-voltage switchgear, a circuit breaker or a gas-insulated metal-enclosed switchgear.
It can be clearly understood by those skilled in the art that, for convenience and simplicity of description, the specific working processes of the above-described apparatuses and units may refer to the corresponding processes in the foregoing method embodiments, and are not described herein again.
In the several embodiments provided in the present application, it should be understood that the disclosed apparatus and method may be implemented in other ways. For example, the above-described apparatus embodiments are merely illustrative, and for example, the division of the units is only one logical division, and other divisions may be realized in practice, for example, a plurality of units or components may be combined or integrated into another system, or some features may be omitted, or not executed. In addition, the shown or discussed mutual coupling or direct coupling or communication connection may be an indirect coupling or communication connection through some interfaces, devices or units, and may be in an electrical, mechanical or other form.
The units described as separate parts may or may not be physically separate, and parts displayed as units may or may not be physical units, may be located in one place, or may be distributed on a plurality of network units. Some or all of the units can be selected according to actual needs to achieve the purpose of the solution of the embodiment.
In addition, functional units in the embodiments of the present invention may be integrated into one processing unit, or each unit may exist alone physically, or two or more units are integrated into one unit. The integrated unit may be implemented in the form of hardware, or may also be implemented in the form of a software functional unit.
The above-mentioned embodiments are only used for illustrating the technical solutions of the present invention, and not for limiting the same; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.
Claims (8)
1. A method of fault detection for high voltage switchgear, involving physical mapping software and finite element analysis software, the method comprising:
responding to an input fault detection request through the entity drawing software, and acquiring equipment parameters of the high-voltage switch equipment to be detected;
constructing a target high-voltage switchgear model based on the equipment parameters and preset high-voltage switchgear models of various models through the entity drawing software;
executing a fault analysis process on the target high-voltage switchgear model through the finite element analysis software, and determining a fault type corresponding to the high-voltage switchgear to be detected;
the fault analysis process comprises an electromagnetic field analysis process, a temperature field analysis process and an air flow field analysis process, the fault analysis process is executed on the target high-voltage switch equipment model through the finite element analysis software, and the fault type corresponding to the high-voltage switch equipment to be detected is determined, and the fault analysis process comprises the following steps:
performing an electromagnetic field analysis process on the target high-voltage switchgear model through the finite element analysis software to determine whether the high-voltage switchgear to be detected has an electromagnetic fault;
performing a temperature field analysis process on the target high-voltage switchgear model through the finite element analysis software, and determining whether the high-voltage switchgear to be detected has a temperature fault;
performing an airflow field analysis process on the target high-voltage switchgear model through the finite element analysis software to determine whether the high-voltage switchgear to be detected has airflow faults or not;
the step of determining whether the high-voltage switch equipment to be detected has temperature faults or not by executing a temperature field analysis process on the target high-voltage switch equipment model through the finite element analysis software comprises the following steps of:
setting a temperature load, an initial temperature and a temperature range for the target high-voltage switchgear model through the finite element analysis software, and generating a temperature field distribution cloud chart;
and if the device part model which does not conform to the temperature range exists in the temperature field distribution cloud picture, determining that the high-voltage switch device to be detected has temperature faults.
2. The method of fault detection for a high voltage switchgear of claim 1, wherein prior to said step of building a target high voltage switchgear model based on said equipment parameters and preset multiple model high voltage switchgear models by said physical mapping software, said method further comprises:
respectively constructing equipment part models corresponding to the normalized features based on the normalized features of a plurality of preset high-voltage switchgear parts through the entity drawing software;
and generating the preset high-voltage switch equipment models with various models by adopting a plurality of equipment part models through the entity drawing software.
3. The fault detection method of high-voltage switchgear according to claim 1, wherein the physical mapping software includes a database management module, and the equipment parameters include equipment model, physical parameters of components, assembly relationships of components, and deformation parameters of components; the step of constructing a target high-voltage switchgear model by the entity drawing software based on the equipment parameters and preset high-voltage switchgear models of various models comprises the following steps:
selecting an initial high-voltage switchgear model from preset high-voltage switchgear models of various models based on the equipment model through the database management module;
and adjusting the equipment part model of the initial high-voltage switch equipment model by the database management module based on the part physical parameters, the part assembling relation and the part deformation parameters to generate a target high-voltage switch equipment model.
4. The method of claim 3, wherein the database management module includes a parts database for storing the equipment component model.
5. The method for detecting faults of high-voltage switch equipment according to claim 1, wherein the step of determining whether the high-voltage switch equipment to be detected has electromagnetic faults or not by performing an electromagnetic field analysis process on the target high-voltage switch equipment model through the finite element analysis software comprises the following steps:
performing Boolean operation by the finite element analysis software on the basis of the target high-voltage switch equipment model to obtain a first equipment model;
giving the first equipment model with the insulation medium type and the material attribute corresponding to the high-voltage switch equipment to be detected, and generating a second equipment model;
performing mesh generation operation on the second equipment model to obtain a plurality of model meshes;
calculating magnetic induction intensity, magnetic potential vector and electromagnetic force corresponding to each model grid according to an input excitation signal, and generating a heat generation file corresponding to each model grid;
and if the magnetic induction intensity, the magnetic potential vector or the electromagnetic force does not accord with preset boundary conditions, determining that the high-voltage switch equipment to be detected has electromagnetic faults.
6. The method of claim 5, wherein the finite element analysis software further comprises a computational fluid dynamics module, and wherein the step of performing an airflow field analysis process on the target high voltage switchgear model by the finite element analysis software to determine whether an airflow fault exists in the high voltage switchgear to be tested comprises:
importing the heat generation file as an energy equation source item into the computational fluid dynamics module through the finite element analysis software;
setting airflow field boundary conditions in the computational fluid dynamics module to obtain airflow field output of each model mesh;
and if the output of the airflow field does not accord with the boundary condition of the airflow field, determining that the high-voltage switch equipment to be detected has airflow faults.
7. The method for fault detection of a high voltage switchgear according to any of the claims 1-6, characterized in that the high voltage switchgear to be tested comprises a high voltage switchgear, a circuit breaker or a gas insulated metal enclosed switchgear.
8. A fault detection device for high voltage switchgear comprising physical mapping software and finite element analysis software, said physical mapping software comprising:
the equipment parameter acquisition module is used for responding to an input fault detection request and acquiring equipment parameters of the high-voltage switch equipment to be detected;
the target high-voltage switchgear model building module is used for building a target high-voltage switchgear model based on the equipment parameters;
the finite element analysis software includes:
the fault type detection module is used for executing a fault analysis process on the target high-voltage switchgear model and determining the fault type corresponding to the high-voltage switchgear to be detected;
the fault analysis process comprises an electromagnetic field analysis process, a temperature field analysis process and an airflow field analysis process, and the fault type detection module comprises:
the electromagnetic fault detection submodule is used for executing an electromagnetic field analysis process on the target high-voltage switch equipment model through the finite element analysis software and determining whether the high-voltage switch equipment to be detected has an electromagnetic fault;
the temperature fault detection submodule is used for executing a temperature field analysis process on the target high-voltage switchgear model through the finite element analysis software and determining whether the high-voltage switchgear to be detected has a temperature fault;
the airflow fault detection submodule is used for executing an airflow field analysis process on the target high-voltage switchgear model through the finite element analysis software and determining whether the high-voltage switchgear to be detected has airflow faults or not;
wherein the temperature fault detection submodule comprises:
the temperature field distribution cloud picture generating unit is used for setting temperature load, initial temperature and temperature range for the target high-voltage switchgear model through the finite element analysis software and generating a temperature field distribution cloud picture;
and the temperature fault determination unit is used for determining that the high-voltage switch equipment to be detected has a temperature fault if the equipment part model which does not conform to the temperature range exists in the temperature field distribution cloud picture.
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107633114A (en) * | 2017-08-21 | 2018-01-26 | 江苏省电力试验研究院有限公司 | A kind of primary cut-out latency Mechanical Fault Vibration Signals emulation mode and device |
| CN107633349A (en) * | 2017-08-28 | 2018-01-26 | 中国西电电气股份有限公司 | Fault impact factor quantitative analysis method based on high-voltage switch gear |
| CN110837041A (en) * | 2018-08-16 | 2020-02-25 | 平高集团有限公司 | Inversion method and device for through-flow fault of high-voltage switch |
| CN111965504A (en) * | 2020-08-14 | 2020-11-20 | 广东电网有限责任公司电力科学研究院 | Method and device for evaluating typical insulation defects of GIS (gas insulated switchgear) |
-
2020
- 2020-11-24 CN CN202011332435.8A patent/CN112557891B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107633114A (en) * | 2017-08-21 | 2018-01-26 | 江苏省电力试验研究院有限公司 | A kind of primary cut-out latency Mechanical Fault Vibration Signals emulation mode and device |
| CN107633349A (en) * | 2017-08-28 | 2018-01-26 | 中国西电电气股份有限公司 | Fault impact factor quantitative analysis method based on high-voltage switch gear |
| CN110837041A (en) * | 2018-08-16 | 2020-02-25 | 平高集团有限公司 | Inversion method and device for through-flow fault of high-voltage switch |
| CN111965504A (en) * | 2020-08-14 | 2020-11-20 | 广东电网有限责任公司电力科学研究院 | Method and device for evaluating typical insulation defects of GIS (gas insulated switchgear) |
Non-Patent Citations (3)
| Title |
|---|
| 参数化设计在GIS开关设备中的应用研究;李晓雷 等;《中国制造业信息化》;20100731;第39卷(第13期);第67页第1.2节第1-2段、第68页第2.1节第1-2段、第69页左栏第1段 * |
| 基于ANSYS Workbench的封闭开关柜稳态热仿真分析;肖立军 等;《2018智能电网信息化建设研讨会论文集》;20181231;第266页第0节第2段、第1.2节第1段、第268-269页第4节第6段 * |
| 空气开关电弧仿真技术及其应用的研究;王伟宗 等;《低压电器》;20100531(第5期);第7页第0节 * |
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