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A power grid load early warning method and system based on high-voltage passive temperature measurement

A technology of power grid load and high-voltage cables, which is applied in the direction of measuring electricity, measuring electrical variables, alarms, etc., and can solve problems such as inability to obtain cable current passing capacity

Active Publication Date: 2021-04-20
HUBEI INFOTECH SYST TECH CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] The present invention provides a power grid load warning method, system, server and storage medium based on high-voltage passive temperature measurement, and calculates the size of the passing current within the safe temperature of each cable, which solves the problem that the current of each cable cannot be obtained in the prior art Through capacity technical issues, the technical effect of setting a current threshold corresponding to its current passing capacity for each cable is achieved, which realizes refined management and improves the overall power transmission capacity of the power grid

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  • A power grid load early warning method and system based on high-voltage passive temperature measurement
  • A power grid load early warning method and system based on high-voltage passive temperature measurement
  • A power grid load early warning method and system based on high-voltage passive temperature measurement

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[0040] The principles and features of the present invention will be described below in conjunction with specific embodiments, and the examples given are only used to explain the present invention, and are not intended to limit the scope of the present invention.

[0041] refer to figure 1 , figure 1 It is a schematic diagram of the server structure of the hardware operating environment involved in the solution of the embodiment of the present invention.

[0042] Such as figure 1 As shown, the server may include: a processor 1001 , such as a CPU, a communication bus 1002 , a user interface 1003 , a network interface 1004 , and a memory 1005 . Wherein, the communication bus 1002 is used to realize connection and communication between these components. The user interface 1003 may include a display screen (Display), and the optional user interface 1003 may also include a standard wired interface and a wireless interface. Optionally, the network interface 1004 may include a sta...

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Abstract

The invention relates to a power grid load early warning method and system based on high-voltage passive temperature measurement. The invention obtains the induced current, wire core temperature and ambient temperature of the high-voltage cable through a distributed optical fiber temperature measurement system and a passive temperature measurement system. When the ambient temperature is known, the square of the passing current and the difference between the stabilized core temperature and the ambient temperature are linearly fitted, and the early warning value of the target cable passing current is calculated according to the fitting function, Calculating through the induced current until the passing current reaches the early warning value is an early warning signal, which solves the technical problem that the load warning cannot be set individually for each cable in the prior art, and achieves the load capacity of each cable, and realizes it for each cable. The technical effect of load warning realizes refined management.

Description

technical field [0001] The invention relates to the technical field of high-voltage power transmission, in particular to a method and system for early warning of power grid load based on high-voltage passive temperature measurement. Background technique [0002] Distributed optical fiber sensing is a combination of optical fiber optical time domain reflection technology and optical fiber Rayleigh scattering and Brillouin scattering detection technology to measure the scattering signal at various points along the optical fiber, and extract the loss, temperature, strain, vibration, and optical polarization of the optical fiber from it. and other information to realize the monitoring of transmission line icing, galloping, lightning strikes, fault diagnosis, wind speed, pipe gallery structure status, cable temperature, pipe gallery anti-breakage, etc.; widely used in power systems, oil pipelines, railway tunnels, water conservancy dikes and Border security and other fields. [...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01R31/08G08B31/00
CPCG01R31/086G01R31/088G08B31/00
Inventor 易国华代犇文刚杨军李俊逸
Owner HUBEI INFOTECH SYST TECH CO LTD
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