Optimal decision method and optimal decision system for power transmission line ice disasters

A technology for transmission lines and decision-making methods, applied in the direction of overhead lines/cable equipment, etc., can solve problems such as difficulty in achieving disposal effects, and achieve the effects of clear principles, strong operability, and improved effects and benefits

Active Publication Date: 2017-05-31
STATE GRID HUNAN ELECTRIC POWER +2
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  • Abstract
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  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to provide a transmission line ice disaster optimization decision-making method and its system to solve the existing technical problems that it is difficult to achieve the optimal disposal effect by relying on manual experience decision-making

Method used

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  • Optimal decision method and optimal decision system for power transmission line ice disasters
  • Optimal decision method and optimal decision system for power transmission line ice disasters
  • Optimal decision method and optimal decision system for power transmission line ice disasters

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Embodiment 1

[0023] like figure 1 As shown, the present invention provides a kind of transmission line ice disaster optimization decision-making method, comprises the following steps:

[0024] S1: Obtain real-time transmission line ice thickness observation data and transmission line ice growth thickness over a period of time. The icing thickness R of each transmission line can be obtained through the transmission line icing automatic monitoring device and / or artificial whistle icing observation station; the transmission line icing early warning system can be used to obtain the transmission line icing growth thickness ΔR;

[0025] S2: Calculate the icing degree of the transmission line according to the icing thickness of the transmission line and the icing growth thickness of the transmission line combined with the design ice thickness of the transmission line, and obtain the importance of the transmission line according to the voltage level of the transmission line and the importance of t...

Embodiment 2

[0054] The icing thickness R of each line is obtained based on the transmission line icing automatic monitoring device and the artificial whistle icing observation station, specifically: 500kV transmission line A has an ice thickness of 15mm, 220kV transmission line B has an ice thickness of 12mm, and 110kV transmission line The ice thickness of line C is 8mm, and the ice thickness of 35kV transmission line D is 3mm. The icing prediction and early warning system for transmission lines is used to calculate the ice growth thickness ΔR of each transmission line in the next 24 hours. The icing growth thickness of transmission line A will be 5 mm in the next 24 hours, the icing growth thickness of transmission line B will be 3 mm in the next 24 hours, the icing growth thickness of transmission line C will be 3 mm in the next 24 hours, and the icing growth thickness of transmission line D will be 4 mm in the next 24 hours. The design ice thickness of transmission line A is 25mm, the...

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Abstract

The invention provides an optimal decision method and an optimal decision system for power transmission line ice disasters. The optimal decision method includes acquiring power transmission line icing thicknesses and increasing icing thicknesses within a period of time; computing by combining the power transmission line icing thicknesses and the increasing icing thicknesses with a power transmission line design ice thickness so as to obtain icing degrees of power transmission lines, acquiring importance degrees of the power transmission lines according to voltage grades of the power transmission lines and importance degrees of power transmission line sections, and acquiring power transmission line icing difficulty coefficients according to deicing equipment configured for the power transmission lines, a deicing scheme formulated for the power transmission lines and the voltage grades of the power transmission lines; screening the power transmission lines needing to be deiced according to the icing degrees of the power transmission lines, conducting priority ranking of the power transmission lines needing to be deiced by integrating the icing degrees, the importance degrees and the deicing difficulty coefficients of the power transmission lines, and deicing according to the priority. The optimal decision method and the optimal decision system for the power transmission line ice disasters have the advantages that emergency disposal strategies for the power transmission line ice disasters can be formulated, and emergency disposal effects and benefits of the power transmission line ice disasters are improved.

Description

technical field [0001] The invention belongs to the field of electrical engineering, in particular to a decision-making method and system for ice disaster optimization of transmission lines. Background technique [0002] Ice disaster is currently the most important disaster that threatens the safe and stable operation of power grid transmission lines. In recent years, with global climate change, freezing disasters have occurred frequently. When severe ice disasters last for a long time and have a large impact range, they will cause damage to power grid transmission lines. Very huge. [0003] The current power grid ice disaster emergency response mostly relies on manual decision-making experience, and it is difficult to achieve the optimal response effect. [0004] Therefore, the present invention proposes a transmission line ice disaster optimization decision-making method and its system, which can comprehensively consider multiple factors such as icing monitoring, icing pr...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02G1/02
CPCH02G1/02
Inventor 陆佳政郭俊李波方针熊蔚立
Owner STATE GRID HUNAN ELECTRIC POWER
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