Tower deformation and conductor galloping risk assessment model based on typhoon weather

Abstract

The invention discloses a tower deformation and conductor galloping risk assessment model based on typhoon weather, and the model comprises a remote management terminal, at least one electromagnetic wave sensor and at least one deformation detector; the remote management terminal transmits an ultra-wideband electromagnetic wave signal; the electromagnetic wave sensor receives electromagnetic waves; and the deformation detector detects the deformation quantity inverted by using the phase change difference value of the echo signal. The tower deformation and conductor galloping risk assessment model based on typhoon weather is long in monitoring distance, can realize multi-point monitoring, is not limited by meteorological environment, and can realize real-time continuous all-weather monitoring; the technology of simultaneous extraction of multiple observation points of the tower and deformation measurement is utilized to realize multi-point measurement and achieve the purpose of monitoring conductor galloping and tower deformation, so the cost is low, thereby ensuring that evaluation and timely early warning of tower state operation are well realized, the safety of a power transmission line is ensured, the occurrence of power grid accidents is reduced, the trip-out rate of a power grid is reduced, and reliable operation of a power grid is greatly improved.

Description

technical field [0001] The invention relates to the technical field of pole tower monitoring, in particular to a typhoon-based tower deformation and wire galloping risk assessment model. Background technique [0002] With the development of society and economy, more and more high-voltage transmission lines are gradually being surveyed, designed, and constructed, while most of the high-voltage transmission lines are operating in the field and have been tested by harsh conditions for a long time. In 2004, there were 3 typhoons In 1972, 1974, 1989, 2000, 2005 and 2007, 2 typhoons landed in Zhejiang, tied for the second most over the years. Judging from the distribution of landfall intensity, all intensities have landfall. According to records, typhoon-level landfalls are the most, and severe tropical storm-level landfalls are the most frequent. The strongest typhoon that landed in Zhejiang Province was No. 8 typhoon "Sangmei" in 2006, and the wind force was 17 (60m / s, 920hPa)...

AI Technical Summary

Problems solved by technology

[0004] (1) The construction cost is high, and the deformation monitoring system is measured point by point. When monitoring large-scale towers, sensors need to be densely deployed, and the workload in the field is large, resulting in problems such as high system cost and slow measurement speed;

[0005] (2) The degree of intelligence is low, the system construction is time-consuming, and the work of detecting and repairing damaged devices during operation will consume a lot of time and cost;

[0006] (3) The all-weather working ability is low. Many traditional monitoring methods, such as the total station, are optical measuring instruments, which cannot be used in dim light and rainy days, and it is difficult to achieve real-time monitoring all day long. Another example is that the conditions for GPS monitoring require good satellite signals, The weather conditions are good, so we propose a risk assessment model for tower deformation and wire galloping based on typhoon weather

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