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Calculation method of inverse problem of ampacity

A calculation method and inverse problem technology, applied in the calculation field of inverse problem of ampacity, can solve problems affecting the accuracy of ampacity analysis

Active Publication Date: 2018-01-09
SUZHOU GUANGGE EQUIP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In practical applications, the parameters of the cable and the environment are affected by factors such as materials, manufacturing processes, and laying environments, and there are differences in varying degrees, which will affect the accuracy of the ampacity analysis.

Method used

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  • Calculation method of inverse problem of ampacity

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Embodiment Construction

[0020] Please refer to figure 1 , a preferred embodiment of the present invention provides a calculation method for the inverse problem of ampacity. The calculation method of the inverse ampacity problem specifically includes the following steps:

[0021] S110: Determine the name and number of cable parameters that need to be corrected.

[0022] The calculation of the ampacity inverse problem is to correct the cable structure parameters, thermal parameters and environmental parameters through the relationship between the cable temperature and the applied electrical load. That means that the calculation result of the inverse ampacity problem is the corrected cable structure parameters, thermal parameters and environmental parameter values. However, in practical applications, some parameters may have errors or be unknown. Therefore, before the calculation of the inverse ampacity problem, it is necessary to screen out the parameter sequence that needs to be corrected.

[0023...

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Abstract

The invention relates to a calculation method for the inverse problem of ampacity. By comparing the cable surface temperature monitored in real time and the cable surface temperature data in the dynamic ampacity analysis, the error of the parameters in the cable and the laying environment is corrected to obtain the corrected parameter values. The calculation result is accurate, which effectively improves the reliability and accuracy of the ampacity analysis software.

Description

technical field [0001] The invention relates to the field of ampacity analysis, in particular to a calculation method for an inverse problem of ampacity. Background technique [0002] With the continuous development of the national economy and the construction and transformation of urban and rural power grids, the number of power cables laid is increasing. The ampacity is an important electrical parameter in cable operation. The current flowing through the cable core is higher than the rated ampacity, which will lead to excessively high operating temperature of the cable, aging of the cable insulation, and greatly shortened cable life. One of the most important jobs in . [0003] The ampacity analysis system is an important part of the smart grid. In the complex laying environment, the accurate calculation of the current carrying capacity provides the basis and guarantee for the safe, stable, economical and effective operation of the power system. Ampacity analysis mainly...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06F17/10G06F17/50
Inventor 顾一驰
Owner SUZHOU GUANGGE EQUIP
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