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Optimization method of insulation structure of converter transformer valve side sleeve outgoing line device

A technology for converting transformers and optimization methods, 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: 2020-06-05
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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  • Optimization method of insulation structure of converter transformer valve side sleeve outgoing line device
  • Optimization method of insulation structure of converter transformer valve side sleeve outgoing line device
  • Optimization method of insulation structure of converter transformer valve side sleeve outgoing line device

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Embodiment Construction

[0030] For further elaborating the technical means and effects that the present invention takes for reaching the intended purpose of the invention, in conjunction with the preferred embodiments below, the specific implementation, structure, features and effects according to the present invention are described in detail as follows:

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

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

[0033] Build an optimization objective function based on factors;

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

[0035] Optimizing the evaluation function using penalty functions and constraints to obtain an unconstrained evaluation function;

[0036] Solve the unconstrained merit function to o...

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Abstract

The invention discloses an optimization method of an insulation structure of a converter transformer valve side sleeve outgoing line device. The method comprises the steps of determining factors influencing an insulation structure of an extra-high voltage converter valve side sleeve outgoing line device, constructing an optimization objective function based on the factors, constructing an evaluation function based on the optimization objective function, optimizing the evaluation function by utilizing a penalty function and constraint conditions, obtaining an unconstrained evaluation function,solving the unconstrained evaluation function, obtaining the weight of the optimization objective function, and the like. According to the method, through the method of constructing the evaluation function, the importance of each optimization objective function is defined, and then the insulation structure of the extra-high voltage converter valve side sleeve outgoing line device is optimized.

Description

technical field [0001] The invention relates to the technical field of electrical insulation, in particular to an optimization method for the insulation structure of a bushing outlet device on the valve side of a converter transformer. Background technique [0002] The insulation structure of the UHV converter transformer valve-side bushing outlet device is an insulation device that connects the valve-side bushing and the converter transformer winding coil. Therefore, it is necessary to ensure that the insulation structure of the valve-side bushing outlet device has good electrical insulation performance. [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 i...

Claims

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Application Information

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Patent Type & Authority Applications(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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