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High-voltage direct-current submarine cable simulation method and system

A submarine cable, high-voltage DC technology, applied in design optimization/simulation, electrical digital data processing, special data processing applications, etc., can solve problems such as low simulation accuracy, and achieve the effect of easy popularization and application

Inactive Publication Date: 2017-12-22
ELECTRIC POWER RESEARCH INSTITUTE, CHINA SOUTHERN POWER GRID CO LTD +2
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] Based on this, it is necessary to provide a high-voltage direct current submarine cable simulation method and system for the problem of low simulation accuracy

Method used

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  • High-voltage direct-current submarine cable simulation method and system
  • High-voltage direct-current submarine cable simulation method and system
  • High-voltage direct-current submarine cable simulation method and system

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Embodiment Construction

[0022] The technical solution of the present invention will be described below in conjunction with the accompanying drawings.

[0023] Such as figure 1 As shown, the present invention provides a high-voltage direct current submarine cable simulation method, which may include the following steps:

[0024] S1, establish a three-dimensional model of the submarine cable body and its laying environment;

[0025] Establish the 3D model of the submarine cable body and its laying environment as shown in the figure figure 2 As shown, it includes a seawater area, a soil area and a submarine cable body; wherein, the seawater area is located on the upper layer of the soil area, and the submarine cable body passes through the seawater area. By establishing a three-dimensional model of the submarine cable body and its laying environment including the seawater area, the soil area and the submarine cable body, the submarine cable body and its laying environment can be simulated to the grea...

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Abstract

The invention relates to a high-voltage direct-current submarine cable simulation method and system. By establishing an electric field module control equation, a flow field module control equation, a solid heat transfer module control equation, a fluid heat transfer control equation and an electrothermal coupling control equation, an electric-thermal-flow multi-physical field coupling simulation method is provided for a high-voltage direct-current submarine cable. The method directly couples physical processes of electric-thermal-flow multi-physical fields; a quick determination method for a temperature, an electric field and a flow velocity is provided for the high-voltage direct-current submarine cable; and the method is simple and universal, is easy to popularize and apply, and is of important significance for guaranteeing safe and reliable operation of a power grid and prolonging the service life of the submarine cable.

Description

technical field [0001] The invention relates to the technical field of electric power simulation, in particular to a high-voltage direct current submarine cable simulation method and system. Background technique [0002] The radial temperature distribution and electric field distribution of high-voltage DC cables are important operating parameters that reflect the performance of the cable and determine the long-term safe and stable operation of the cable. The difference between high-voltage DC cables and AC cables is mainly in the distribution of the electric field of the insulating layer and its influencing factors. Under DC conditions, the loss caused by conductor loss and insulation leakage current (the latter is negligible during normal operation) is the reason for the temperature gradient distribution of the cable, and changes in temperature and electric field strength will cause significant changes in the conductivity of the insulating material. The electric field dis...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F17/50
CPCG06F30/20G06F2119/08Y02E60/00
Inventor 侯帅陈云傅明利惠宝军郝艳捧阳林邱伟豪李立浧
Owner ELECTRIC POWER RESEARCH INSTITUTE, CHINA SOUTHERN POWER GRID CO LTD
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