基于增量式PID控制的全静压测试系统设计

Pitot-Static Testing System Based on Incremental PID Control

摘要:

针对现阶段全静压测试设备结构复杂、成本高,自动化程度低、效率低的问题,提出一种基于增量式PID控制的全静压测试系统的设计方法；系统通过STM32单片机完成核心控制任务,实现对密闭容器及管路中压力的精确控制,并完成压力的自动测量和相关飞行参数的显示；实验证明该系统具有响应速度快,超调量小等优点,并且能达到全静压系统测试精度的要求；该全静压测试系统成本低廉,通用性强,使用方便,测试周期短,适合于多种机型,具有较好有应用前景。

Abstract:

Pertaining to the structural complexity, high price, low degree of automation, and low test efficiency of pitot-static test equipment in present stage, a kind of pitot-static test system design method based on incremental PID control is put forward. The system completes the core control task through the STM32 microcontroller, makes accurate control of pressure in sealed container and pipe, completes the automatic measurement of pressure,and displays the relevant flight parameters. Experiments prove that the system has advantages of quick response, less overshoot and can meet the accuracy requirement of the pitot-static system test. The pitot-static system is with low cost, strong commonality, ease of use, short test period and applicable to a variety of models, and has a good application prospect.