Static pressure control of wind tunnel system based on DMC
作者单位：School of Information Science and Engineering Northeastern University China Aerodynamics Research and Development Center
会议名称：《第三十九届中国控制会议》
会议日期：2020年
学科分类：080103[工学-流体力学] 08[工学] 080104[工学-工程力学] 0801[工学-力学（可授工学、理学学位）]
关 键 词：wind tunnel system static pressure choke finger dynamic matrix control model correction
摘 要：Aiming at the PID algorithm adopted in the wind tunnel static pressure control cannot meet the precision requirement at present, DMC algorithm is adopted in this paper to control the static pressure of the wind tunnel system. DMC algorithm is adopted to design the controller of the choke finger system to achieve high precision static pressure control. Aiming at the condition that the control precision is reduced due to the inaccurate attack angle step response model in the high attack angle experiment process, the method of off-line correction of the attack angle step response model according to the experiment result of one time is adopted in this paper, and the control precision is improved when the experiment is carried out again. The simulation result verifies the effectiveness of the DMC algorithm and the model correction.