火力发电厂锅炉输煤系统优化节能控制方法

Optimal Energy Saving Control Method of Boiler Coal Handling System in Thermal Power Plant

火力发电厂在运行过程中消耗的资源量较大,不能达到节能的效果。为此,提出火力发电厂锅炉输煤系统优化节能控制方法。利用相机获取火力发电厂锅炉输煤系统输送带运煤图像,通过一维小波分析方法去除图像中的噪声,得到感兴趣的煤料区域。采用Canny边缘检测算法搜寻深度和强度图像,校正图像边缘数据,根据Navier-Stokes方程获取深度图像,计算煤料的面积和体积,通过模糊控制方法控制输送带的输入和输出频率,调整输送带运行速度,实现火力发电厂锅炉输煤系统优化节能控制。实验测试证明,控制误差小,电能节约比率高达1.63%,电费消耗比率低于3.0%,最低控制耗时为102ms,控制效果好,可以达到输煤系统节能控制的需求。

The thermal power plant consumes a large amount of resources in the operation process,which cannot achieve the effect of energy conservation.Therefore,an optimal energy-saving control method for boiler coal handling system in thermal power plants is proposed.The image of coal conveying belt of boiler coal conveying system in thermal power plant is obtained by camera,and the noise in the image is removed by one-dimensional wavelet analysis to obtain the interested coal material area.Canny edge detection algorithm is used to search depth and intensity images,correct image edge data,obtain depth images according to Navier Stokes equation,calculate the area and volume of coal,control the input and output frequency of conveyor belt through fuzzy control method,adjust the operating speed of conveyor belt,and achieve optimal energy-saving control of boiler coal handling system in thermal power plant.The experimental test proves that the control error is small,the electricity saving ratio is up to1.63%,the electricity consumption ratio is less than 3.0%,the minimum control time is 102ms,and the control effect is good,which can meet the requirements of energy-saving control of the coal handling system.