Wide and thick plate hot working burner period intermittent control method considering input saturation

By designing a hot-processing burner period period control method with wide-thick plate with input saturation, the problems of energy waste and unstable temperature control in the prior art are solved, and the stable control of furnace temperature and efficient energy utilization are achieved.

CN119689854APending Publication Date: 2025-03-25HUNAN INSTITUTE OF ENGINEERING
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Patent Information

Application Number
CN202411789672.5
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2024-12-06
Publication Date
2025-03-25

AI Technical Summary

Technical Problem

When the existing wide-thick plate thermal processing control system uses continuous constant heating, energy waste and temperature control performance are unstable, and the nozzle thermal power has an upper limit, making it difficult to effectively control the furnace temperature.

Method used

A wide-thick plate hot-processing burner period period control method considering input saturation is designed. By establishing a parameter model for the distribution of burner heating controllable area, and based on the Lyapunov functional and linear matrix inequality theory, sufficient conditions for the stability of the burner heating controllable area distribution parameter system for finite time are calculated.

Benefits of technology

It realizes stable control of furnace temperature, efficient energy utilization, ensures the quality of wide and thick steel, and achieves energy conservation and emission reduction to a large extent.

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Abstract

The invention discloses a wide and thick plate hot working burner period intermittent control method considering input saturation. The method comprises the steps that burner heat supply controllable areas are divided according to burner distribution positions in the length direction of a wide and thick plate; on the basis of the operation time sequence of the wide and thick plate in the furnace, a burner heat supply controllable area distribution parameter model is established according to the temperature sensor distribution position and temperature information. And designing a burner period intermittent control method considering input saturation. And on the basis of a Lyapunov functional and a linear matrix inequality theory, calculating and designing sufficient conditions for finite time stability of a burner heat supply controllable area distribution parameter system under the control method. Through the steps, the temperature control performance of the heating furnace can be improved, sufficient combustion of fuel in the furnace is achieved, and it is ensured that wide and thick plates are heated evenly and the target temperature reaches the standard.
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