Method for quantitatively evaluating necessity of monitoring icing on transmission line

Abstract

The invention discloses a method for quantitatively evaluating the necessity of monitoring icing on a transmission line. The method includes the first step of considering the importance degree of the transmission line where a line tower is located in a power grid, the ice melting and ice resistance performance of the line tower, the operating environment where the line tower is located, historical icing fault statistics and line operation maintenance, and building a hierarchical type evaluation index system, the second step of determining an evaluation standard according to all types of evaluation indexes in an index layer, and obtaining an evaluation score table of the all types of evaluation indexes, the third step of giving the weight coefficient of each index in an item layer and the weight coefficient of each index in the index layer according to the importance degree of each type of evaluation indexes in the item layer and the importance degree of each type of evaluation indexes in the index layer, the fourth step of calculating the evaluation score of the necessity of monitoring icing according to the scoring condition and the weight coefficient of each index in the index layer, and the fifth step of judging the necessity of monitoring icing on the transmission line according to the overall evaluation score condition of the necessity of monitoring icing. The method can quantitatively evaluate the necessity of monitoring icing in the section where the transmission line tower is located, and the evaluating method is simple and feasible.

Description

technical field [0001] The invention belongs to the technical field of power transmission and transformation equipment, and particularly designs a quantitative evaluation method for the necessity of ice coating monitoring of power transmission lines. Background technique [0002] As the backbone network of the power system, transmission lines are of various types, long and widely distributed in plains and high mountains, and are directly exposed to harsh natural environments such as wind, snow, rain and dew, resulting in heavy tasks for operation management and equipment maintenance. ,High difficulty. Therefore, with the development of the power system to high voltage, large capacity, and the Internet, remote online monitoring of the transmission line itself and its surrounding environment and meteorological parameters will be of great significance for guiding the development of equipment maintenance and comprehensively improving the management level of transmission lines ....

AI Technical Summary

Problems solved by technology

At present, some transmission lines in my country's medium-heavy ice areas have installed ice-covered online monitoring devices, but the distribution of monitoring devices is still mainly based on the experience of operation and maintenance personnel. There is insufficient research and application of evaluation criteria for the necessity of ice-covered monitoring, and the evaluation methods are extensive. , there is a lack of a quantitative evaluation method that can guide the planning of ice monitoring monitoring points

Images