涡轮发动机供气系统流量和压力的控制方案

The mass flow rate and pressure control scheme of the gas supply system was studied, and the improved control method of using multiple linear regression prediction and adaptive proportional regulation was put forward to integrate the control of the electric valve of each flow path of the experimental platform. The design of a measuring control system operation table, using Siemens programmable logic controller (PLC) as the main controller, can realize automatic control of 46 electric valves, and retain the remote manual control function. The control mode can be adjusted according to different electric valve speed change/increase amplitude, making the valve adjustment more smooth. Based on the pipeline condition of the experimental platform, compared with the conventional proportion integral differential (PID) control, the control mode can reduce the overshooting of the pressure and mass flow rate of each gas path of the experimental platform by more than 20%, shorten the adjustment time by more than 40 s, and improve the steady-state performance by more than 2% for the large mass flow rate condition.