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Finite element-based traction transformer temperature field simulation analysis method and system

A traction transformer, simulation analysis technology, applied in the direction of design optimization/simulation, calculation, computer-aided design, etc., can solve the problems of less research on traction transformer working conditions, dynamic temperature field can not be represented, etc., to achieve reliable operation, calculation The results are accurate

Pending Publication Date: 2021-04-09
GUANGXI UNIV
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Problems solved by technology

[0003] Most of the existing research focuses on the load rating or the small-scale fluctuation of the load, and there are few studies on the traction transformer working condition, and the dynamic temperature field can no longer be characterized by the parameters in the steady state

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  • Finite element-based traction transformer temperature field simulation analysis method and system
  • Finite element-based traction transformer temperature field simulation analysis method and system
  • Finite element-based traction transformer temperature field simulation analysis method and system

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Embodiment Construction

[0052]The preferred embodiments of the present invention will be described in detail below with reference to the accompanying drawings, but it should be understood that the scope of the invention is not limited by the specific embodiments.

[0053]The embodiment of the present invention discloses a temperature field simulation analysis method based on finite element, such asfigure 1 As shown, including:

[0054]Step S101, calculate the airborne loss and load loss of the traction transformer, calculate the no-load loss and load loss of the traction transformer according to the factory manual of the traction transformer; the no-load loss includes hysteresis loss and eddy current loss in the traction transformer core. It is the main factor that causes the rising iron core temperature of the traction transformer. The empty load loss is also called the excitation loss, consisting of hysteresis loss and eddy current loss, and the traction transformer schematicfigure 2 As shown, the no-load loss...

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Abstract

The invention relates to the technical field of electrical equipment fault diagnosis, and particularly discloses a finite element-based traction transformer temperature field simulation analysis method and system. The method comprises the following steps: calculating no-load loss and load loss of the traction transformer, analyzing a heat dissipation mode and a heat transfer condition of the traction transformer, establishing a three-dimensional numerical calculation model, setting an initial value and a third-class boundary condition, and performing simulation calculation to solve distribution and change conditions of an internal temperature field of the traction transformer; according to the invention, the traction transformer temperature field solving APP which operates independently is constructed based on the COMSOL platform, and an operator can correct the traction transformer simulation model according to the actual situation so as to obtain a more accurate result; the change of the load loss of the traction transformer along with the change of the operation temperature is also considered, and therefore the calculation result is more convenient and accurate, and the power system is more reliable, safer and more stable in operation.

Description

Technical field[0001]The present invention relates to the field of electrical equipment fault diagnosis, and in particular, to a temperature field simulation analysis method and system based on finite element-based transformer.Background technique[0002]With the advancement of urbanization process and the continuous growth of urban population, limited road traffic resources have grown sharply, and traffic congestion has become an important issue for restricting urban sustainable development. In accordance with the requirements of high quality development in the new period, many cities in China began to vigorously develop urban rail transit, establish a public transportation system with large amounts of orbital transport as an auxiliary, bus line. Developing urban rail transit, while easeing traffic stress, it is also conducive to improving energy consumption structures, implementing sustainable development, promoting energy conservation and emission reduction. With the continuous dev...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F30/23G06F119/08
CPCG06F30/23G06F2119/08
Inventor 张镱议刘捷丰韦行孝
Owner GUANGXI UNIV
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