دانلود کتاب بازسازی و کنترل هوشمند نیروگاه

Coal-fired power plant is a huge and complex plant that produces electric energy and heat energy. In China, the coal-fired power plant is not only the largest producer of secondary energy, but also the largest consumer of primary energy. In addition to coal, the coal-fired power plant consumes a certain amount of fuel oil and a large amount of freshwater. At the same time, it produces pulverized coal ash equivalent to about 20% of the total coal consumption and a large amount of sulfur dioxide, carbon dioxide, nitrogen oxide, and industrialwastewater. So far, the problems of high energy consumption and excessive pollution emission in power production have not been fundamentally solved. The research task of energy conservation and emission reduction of coal-fired power plants is still arduous. The study of energy conservation and emission reduction for coal-fired power plants can be classified into twofold: keeping the internal combustion field stable in industrial furnaces and optimal control of the boiler-turbine unit. In the first keeping the internal combustion field stable, by means of flame image detection, image segmentation, and flame modeling, the combustion status in the furnace can be understood intuitively and accurately. Then the temperature field is reconstructed by temperature measurement methods, so as to judge whether the combustion condition in the furnace is stable in time. In addition, the reconstructed temperature field is introduced into the optimal control system of the coal-fired boiler as an intermediate variable to optimize the combustion in the furnace, so that the combustion can reach the ideal working condition as soon as possible. However, due to the high complexity of working conditions in the furnace, there are still some problems when using the common technologies, such as (1) the commonly used algorithms cannot get satisfactory segmentation results. (2) The current segmentation model has poor generalization ability. (3) The traditional temperature measurement methods based on flame model cannot obtain accurate fire radiant energy data. Therefore, how to effectively keep the state of the combustion field stable inside the furnace has stimulated the first research line of this monograph.