Feedforward control combustion adjustment method based on temperature field prediction of combustion region

Abstract

The invention discloses a feedforward control combustion adjustment method based on temperature field prediction of a combustion region. The method comprises the following steps: (1) establishing a physical model of a combustor and a hearth combustion region for a specific boiler by means of modeling software; (2) selecting a reasonable mathematic model and setting corresponding boundary conditions; (3) calculating numerical values; (4) correcting the calculated results; (5) summarizing the calculated results and paralleling the calculated results with input variables to establish a training database of a prediction model; (6) carrying out neural network training on data of the database by means of MATLAB to obtain a prediction model; (7) inputting expected operating parameters of the combustor to obtain a prediction temperature field; (8) summarizing prediction rules to form a set of combustion optimization schemes which meet safe and economical operations of a coal-fired power plant at the same time; and (9) adjusting the needed temperature field of the combustion region according to the optimization schemes. The method is characterized in that feedforward adjustment of the temperature field of the combustion region is achieved, so that safety and energy conservation of a unit are facilitated.

Description

[0001] The present invention claims the priority of the Chinese patent application submitted to the China Patent Office on May 09, 2019, the application number is 201910381956.3, and the title of the invention is "A Feedforward Control Combustion Adjustment Method Based on the Prediction of the Temperature Field of the Combustion Area", all of which The contents are incorporated herein by reference. technical field [0002] The invention belongs to the technical field of operation adjustment of coal-fired power plants, and in particular relates to a feedforward control combustion adjustment method based on temperature field prediction in a combustion area. Background technique [0003] China is a big country of coal production and consumption, and coal-fired power plants are the main coal-consuming equipment in my country. Therefore, the prevention and control of environmental pollution caused by coal combustion in coal-fired power plants and the optimal control of unit opera...

AI Technical Summary

Problems solved by technology

In the face of old problems and new situations, it is even more difficult to judge the operating conditions of the unit in real time and make reasonable adjustments only by existing methods

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