一种用于钵体烧结过程的逻辑控制方法

By dividing the driving output period and the sampling observation period during the sintering process of the pot, and using real-time thermal resistance parameters for feedforward gain correction, the problems of driving power oversaturation and thermal stress gradient runaway during the pot sintering process are solved, and the stability and precise energy scheduling of the system under complex working conditions are realized.

CN122219662BActive Publication Date: 2026-07-17SHANXI BEIDU TECH CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
SHANXI BEIDU TECH CO LTD
Filing Date
2026-05-13
Publication Date
2026-07-17

AI Technical Summary

Technical Problem

In the existing technology, the continuous feedback mechanism cannot identify the nonlinear dissipation inside the controlled object during the sintering process of the pot body, resulting in oversaturation of the driving power. The surface thermal information and the internal physical state are out of phase, making it difficult to achieve precise scheduling of energy injection timing, and the stability of the control system in the phase transition range is difficult to guarantee.

Method used

By employing mutually exclusive drive output periods and sampling observation periods in the time domain, and by collecting temperature data during the heating pulse signal and natural cooling phase, real-time thermal resistance parameters are calculated, feedforward gain is corrected, drive duty cycle is adjusted, control deviations caused by phase transition hysteresis are compensated, a state observer is constructed to identify internal states, and a historical baseline self-checking mechanism is introduced to ensure system stability.

Benefits of technology

This achieves deep alignment between the driving commands and the internal thermodynamic state during the sintering process of the potter's bowl, eliminates local thermal stress gradients, improves the stability and state convergence of the system under complex working conditions, and avoids oversaturation output of the control system.

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Abstract

本发明涉及工业控制技术领域,公开了一种用于钵体烧结过程的逻辑控制方法,包括:划分控制器的控制周期为时域上互斥分布的驱动输出时段与采样观测时段,关断采样观测时段内的加热脉冲信号,采集受控对象在自然冷却阶段的温度变化序列,提取该序列的变化斜率并映射为表征受控对象内部热特性的实时热阻参数,进而根据该参数修正后续控制周期的驱动占空比,本发明利用无源观测窗口获取受控对象的本征热响应规律,实现对相变迟滞的非线性前馈补偿,抑制由于热惯性引起的指令过饱和输出,从而避免热应力堆积导致的钵体结构损伤。
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Citation Information

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