基于PID算法的负压隔离系统主控制器硬件设计  

Hardware Design of Main Controller of Negative Pressure Isolation System Based on PID Algorithm

作　　者：叶大伟 李强[1] 涂晓丽 黄伟 吕堂术 YE Dawei;LI Qiang;TU Xiaoli;HUANG Wei;LV Tangshu(Jiujiang Vocational and Technical College,Jiujiang,Jiangxi 332007,China)

机构地区：[1]九江职业技术学院,江西九江332007

出　　处：《自动化应用》2023年第6期100-102,共3页Automation Application

基　　金：江西省教育厅科技项目(GJJ214011)。

摘　　要：实验过程中的有害气体排放快慢直接影响实验人员的生命安全。因此,实验柜内的环境必须保持在一个稳定的负压隔离过程中,为了实现良好的隔离效果,需要稳定且快速的风压控制,降低隔离区域内的气体扩散速度及缩小扩散范围。本文根据用户实际需求,在改进PID控制算法上,分析优化了主要控制参数Ki、Kp、Kd的值。同时,将优化的算法程序移植到STM-32的主控制器中,设计了基于PID算法的负压隔离通风控制系统的主控制器硬件电路,该设计在实际运行过程中得到了用户较好的反馈。The safety of laboratory personnel is directly impacted by the speed of harmful gas emission from the laboratory cabinet during experiments.In order to maintain a secure environment within the cabinet,it is crucial to maintain stable negative pressure isolation.To achieve an effective isolation effect,stable and rapid air pressure control is essential for minimizing gas diffusion speed and range in the isolation area.Consequently,our project analyzed and optimized the value of main control parameters Ki9 Kp and Kd in the improved PID algorithm,which is based on the actual needs of users.The optimized algorithm program was then transplanted to the main controller of STM-32,and the hardware circuit for the main controller of the negative pressure isolation ventilation control system based on the PID algorithm was designed.The user has reported positive feedback from using the system during the actual operation process.

关 键 词：风险环境 负压隔离 风压控制 改进PID 硬件设计 

分 类 号：TP391[自动化与计算机技术—计算机应用技术]