一种回流式冰风洞双风机稳风速控制方法

By using a segmented incremental PID control method, the problem of unstable wind speed regulation in icing wind tunnels was solved, achieving rapid and precise wind speed control and improving the stability and control effect of the wind tunnel.

CN121113429BActive Publication Date: 2026-07-17CHINA AVIATION IND CORP HARBIN AERODYNAMICS RESEARCH INSTITUTE

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
CHINA AVIATION IND CORP HARBIN AERODYNAMICS RESEARCH INSTITUTE
Filing Date
2025-11-11
Publication Date
2026-07-17

AI Technical Summary

Technical Problem

Existing technologies struggle to achieve rapid and precise wind speed regulation in icing wind tunnels, and conventional PID control is inefficient under complex operating conditions, failing to guarantee optimal control performance.

Method used

A segmented incremental PID control method is adopted. Through data acquisition, filtering, and segmented acquisition of initial PID values, parameter tuning and fine-tuning are performed in the closed-loop system to establish an optimal incremental PID controller and achieve stable control of wind speed.

Benefits of technology

It significantly improves the response speed and accuracy of wind speed control, ensures the stability and robustness of the wind tunnel under complex working conditions, and enhances the efficiency of engineering applications.

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Abstract

本发明公开了一种回流式冰风洞双风机稳风速控制方法,属于风洞试验测控技术领域。所述方法首先通过高精度数据采集系统测量风洞试验段总温、稳定段总压及试验段静压,经滤波与均值处理后计算出实际风速;基于不同工况下的开环试验数据,将风机转速划分为多个控制区段,并针对各区段分别整定增量式PID控制器的初始参数;最后,以目标风速与实际风速的差值作为输入,采用分段增量式PID算法输出控制信号,驱动双电机以给定转速运行,实现对风洞风速的闭环稳定控制。本发明针对回流式冰风洞惯性大、滞后性强的特点,有效提升了在复杂试验条件下的控制速度与稳定性。
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