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An optimization method for the insulation structure of the bushing outlet device on the valve side of the converter transformer

A technology for converting transformers and insulating structures, which is applied to transformer/inductor components, transformer/inductor coils/windings/connections, electrical components, etc., and can solve complex structures, poor heat dissipation conditions, and transformer oil tangential field strength. Advanced problems, to achieve the effect of insulation structure optimization

Active Publication Date: 2021-06-08
WUHAN NARI LIABILITY OF STATE GRID ELECTRIC POWER RES INST +5
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Problems solved by technology

[0003] At present, the insulation structure of the UHV converter transformer valve side bushing outlet device is divided into open type and closed type, among which: (1) The open type outlet structure has a simple insulation structure, which is conducive to the flow of transformer oil and heat dissipation, and shields the electric field in the cardboard The distribution is reasonable, but the tangential field strength of the transformer oil along the surface of the insulation barrier is relatively high; (2) the closed outlet structure is composed of special-shaped barriers, the structure is relatively complex, and the heat dissipation conditions are poor, and the electric field strength in the normal direction it bears Higher, but the tangential electric field intensity along the surface of the barrier in the oil is small, which can prevent the surface flashover along the oil-paper interface

Method used

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  • An optimization method for the insulation structure of the bushing outlet device on the valve side of the converter transformer
  • An optimization method for the insulation structure of the bushing outlet device on the valve side of the converter transformer
  • An optimization method for the insulation structure of the bushing outlet device on the valve side of the converter transformer

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Embodiment Construction

[0030] In order to further illustrate the technical means and the effect that the present invention takes to achieve the predetermined purpose of the invention, the following in conjunction with the preferred embodiment, to the specific embodiment, structure, feature and effect according to the present invention, the detailed description is as follows:

[0031] The invention discloses a method for optimizing the insulation structure of a valve side bushing outlet device of a converter transformer, comprising the following steps:

[0032] Determine the factors affecting the insulation structure of the UHV converter converter valve side bushing outlet device;

[0033] Construct optimization objective function based on factors;

[0034] Build an evaluation function based on the optimization objective function;

[0035] The evaluation function is optimized by using penalty function and constraints to obtain unconstrained evaluation function;

[0036] Solve the unconstrained meri...

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Abstract

The invention discloses a method for optimizing the insulation structure of a bushing outlet device on the valve side of a converter transformer. The objective function constructs the evaluation function, optimizes the evaluation function by using the penalty function and constraint conditions to obtain the unconstrained evaluation function, and solves the unconstrained evaluation function to obtain the weight of the optimized objective function. method, the importance of each optimization objective function is clarified, and then the insulation structure of the bushing outlet device on the valve side of the UHV converter is optimized.

Description

technical field [0001] The invention relates to the technical field of electrical insulation, in particular to a method for optimizing the insulation structure of an outlet device of a valve side bushing of a converter transformer. Background technique [0002] The insulation structure of the valve side bushing outlet device of the UHV converter transformer is an insulating device connecting the valve side bushing and the winding coil of the converter transformer. Therefore, it is necessary to ensure that the valve side bushing outlet device insulation structure has good electrical insulation performance. [0003] At present, the insulation structure of the valve side bushing outlet device of the UHV converter transformer is divided into open type and closed type, among which: (1) The open type outlet structure has a simple insulation structure, which is conducive to the flow of transformer oil and facilitates heat dissipation, and shields the electric field in the cardboard....

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01F27/29H01F27/32
CPCH01F27/29H01F27/324
Inventor 邓建钢宋友徐卓林兰贞波柯磊聂宇彭宗仁
Owner WUHAN NARI LIABILITY OF STATE GRID ELECTRIC POWER RES INST
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