Environment-friendly equipment performance prediction method based on coal-fired power plant operating data

Abstract

The invention discloses an environment-friendly equipment performance prediction method based on coal-fired power plant operating data. According to the method, the operating data of unit environment-friendly equipment is collected, the data is preprocessed, noise interference and abnormal data are removed, and high-quality data is obtained; then, key factor recognition is performed on all collected state parameters of the environment-friendly equipment, and the state parameters which influence environment-friendly equipment performance and have large weights are selected to serve as input ofan environment-friendly equipment performance model; based on this, a data model for environment-friendly equipment performance prediction is set up depending on regression analysis and is trained; and data model evaluation indexes are selected to determine the effectiveness and accuracy of the data model. Through the method, the prediction model has high precision and high self-adaptability; andbased on the unit actual operating data and by aid of an efficient and intelligent data algorithm, the environment-friendly equipment performance of a coal-fired power plant can be predicted scientifically, efficiently and accurately, and an important technical foundation is laid for energy-saving optimization and fault diagnosis subject research and application of the environment-friendly equipment subsequently.

Description

technical field [0001] The invention belongs to the technical field of flue gas purification and environmental protection in coal-fired power stations, and in particular relates to a method for predicting the performance of environmental protection equipment based on the operation data of coal-fired power stations. Background technique [0002] In response to national industrial policies related to ecology and environmental protection, most domestic coal-fired power plants have successively completed the technical transformation of flue gas purification, that is, new or expanded flue gas denitrification, flue gas dust removal, and flue gas desulfurization on the basis of the original unit equipment. equipment and its auxiliary facilities. Usually, environmental protection equipment is operated and adjusted in such a way that the concentration of pollutants at the outlet is lower than the emission limit and a certain margin is reserved, so that the air pollutants have been ef...

AI Technical Summary

Problems solved by technology

This method can effectively reduce the total discharge of pollutants, but this method requires rich and solid professional theoretical knowledge, which is difficult for the application and implementation of coal-fired power stations

[0005] In the prior art, from the perspective of control, the Chinese patent with the announcement number CN105786035B and the publication date of July 20, 2016 discloses an internal NOx concentration prediction model of a heuristic predictive controller, which can effectively reduce the NOx concentration. The fluctuating amount and ammonia gas consumption avoid the complex traditional nonlinear predictive control algorithm, which is convenient for implementation and engineering application, but it cannot realize the accurate prediction of NOx concentration at full load denitrification

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