220kV submarine cable current-carrying capacity calculation method based on gap correction factor

Through the calculation method based on the gap correction factor, considering the submarine environmental factors and adjusting the current carrying capacity model of the submarine cable, the problem of deviation in the calculation results in the existing technology is solved, the safety and scientific design of the cable are improved, and the offshore wind power is supported. Sustainable development.

CN119291352AInactive Publication Date: 2025-01-10SOUTHWEST JIAOTONG UNIV
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Patent Information

Application Number
CN202411564759.2
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2024-11-05
Publication Date
2025-01-10
Estimated Expiration
Not applicable · inactive patent

AI Technical Summary

Technical Problem

The existing calculation methods for current carrying capacity of subsea cables fail to fully consider environmental factors such as the porosity of subsea soil and seawater flow rate, resulting in a large deviation from the actual operating state, affecting the service life and safety of the cable.

Method used

Using a calculation method based on void correction factor, the void correction factor is calculated by measuring soil temperature, porosity, seawater temperature and seawater flow rate, and combining other thermal resistance and loss parameters, the traditional current carrying capacity model is adjusted to more accurately reflect the submarine cable. current carrying capacity.

Benefits of technology

It improves the operating safety of submarine cables, reduces the risk of failure, provides a scientific basis for the design and layout of offshore wind power, and ensures the reliability and safety of the submarine cable system.

✦ Generated by Eureka AI based on patent content.

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Abstract

The invention discloses a 220kV submarine cable current-carrying capacity calculation method based on a gap correction factor. The method comprises the following steps: measuring the soil temperature of a cable laying position, measuring the void ratio of soil, measuring the seawater temperature, measuring the seawater flow velocity, calculating the gap correction factor, and calculating the current-carrying capacity of a 220kV submarine cable directly buried and laid under the seabed. The method has the advantages that the current-carrying capacity of the 220kV submarine cable directly buried and laid under the seabed is calculated by measuring the soil temperature, the soil porosity, the seawater temperature and the seawater flow velocity at the cable laying position and calculating the gap correction factor, and the method is simple and efficient and can accurately calculate the current-carrying capacity of the 220kV submarine cable directly buried and laid under the seabed.
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