Converter transformer fire source intensity inversion assessment and temperature field prediction method and system

Abstract

The invention provides a converter transformer fire source intensity inversion assessment and temperature field prediction method and system. The method comprises the following steps: 1) establishinga converter transformer fire simulation forward calculation model; finishing data assimilation state vector initialization; 2) performing forward calculation on converter transformer fire simulation to obtain data such as a fire spreading temperature field and the like, and outputting the data; 3) judging whether thermocouple and heat flow meter monitoring data exist or not, if yes, outputting a result by taking the calculation result in the step 2 as a predicted value through a data assimilation algorithm, and turning to the step 4); if not, directly turning to the step 4; 4) judging whetherto end the simulation process, and if yes, ending the simulation; if not, returning the result obtained in the step 3 to the converter transformer fire simulation forward calculation model again, andexecuting the step 2. According to the method, the inversion assessment of the fire source intensity of the converter transformer fire can be accurately and quickly realized, the temperature distribution in the fire spreading process of the converter transformer can be predicted, and a basis is provided for the emergency response and decision making of the converter transformer fire.

Description

technical field [0001] The invention belongs to the technical field of fire inversion prediction, and in particular relates to a method and system for inversion evaluation of fire source intensity of converter rheology fire and temperature field prediction. Background technique [0002] The converter transformer is used together with the converter valve to realize the connection between the AC power grid and the DC power grid and the mutual conversion between AC power and DC power. It is an important carrier of power transmission. Once a fire accident occurs in the converter transformer, it will not only damage a variety of substation equipment and cause interruption of power transmission, but also seriously affect people's living order and cause serious social and economic losses. Because the converter transformer is in the working environment of high current, high voltage and high load for a long time, and a large number of converter transformers are used at the same time,...

AI Technical Summary

Problems solved by technology

Once a fire accident occurs in the converter transformer, it will not only damage a variety of substation equipment, cause interruption of power transmission, but also seriously affect people's living order and cause serious social and economic losses

Because the converter transformer is in the working environment of high current, high voltage and high load for a long time, and a large number of converter transformers are used at the same time, it is easy to cause the occurrence of fire in the converter transformer.

In recent years, there have been many converter fire accidents in Xinjiang, Qinghai and other places, causing huge economic losses and seriously affecting the supply of electricity and the safe operation of society.

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