一种基于余热衰减模型的风冷系统自适应控制方法

By using a residual heat attenuation model and Kalman filtering to process temperature measurements, and combining the latent heat release index of phase change and the geometric thermal inertia factor, the problem of misjudgment of latent heat of phase change in the air-cooled system was solved, achieving precise adaptive cooling of wind turbine components and preventing thermal stress cracks and structural abnormalities.

CN122172590BActive Publication Date: 2026-07-17JIANGYIN LIAOYUAN FORGING CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
JIANGYIN LIAOYUAN FORGING CO LTD
Filing Date
2026-05-11
Publication Date
2026-07-17

AI Technical Summary

Technical Problem

Existing air-cooled control systems cannot identify the latent heat of phase change during the cooling process of wind turbine components, leading to misjudgment of cooling rate, abnormal structure or thermal stress cracks, and cannot perform differentiated cooling control for workpieces with different geometric features.

Method used

An adaptive control method based on a residual heat attenuation model is adopted. Temperature measurements are processed by Kalman filtering, a phase change-free benchmark model is constructed to calculate the latent heat release intensity index of phase change, and combined with the cross-sectional geometric thermal inertia factor, a fan frequency command is generated to achieve precise control of the cooling process.

Benefits of technology

It avoids the misjudgment of latent heat of phase change by traditional control systems, prevents overcooling, ensures uniformity of workpiece structure and avoids thermal stress cracks, and achieves high-quality cooling for workpieces of different shapes.

✦ Generated by Eureka AI based on patent content.

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Abstract

本发明涉及工业过程控制技术领域,具体涉及一种基于余热衰减模型的风冷系统自适应控制方法,包括:对环件实时温度测量值进行滤波处理,输出估计温度和瞬时冷却速率;构建无相变基准模型计算理论温度,根据估计温度与理论温度的偏离程度及瞬时冷却速率计算相变潜热释放强度指数;根据环件几何参数计算截面几何热惯性因子;根据估计温度与目标冷却曲线温度的偏差计算比例增益项,利用相变潜热释放强度指数与截面几何热惯性因子构建负向的相变阻尼项,生成风机频率指令。本发明解决了现有技术无法识别相变潜热导致的冷却误判以及无法针对不同几何特征的工件实现差异化冷却控制的技术问题。
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