基于PLC的某大型连续式风洞隔离门控制系统设计

Design of Isolation Control System for a Large Continuous Wind Tunnel Based on PLC

摘要:

大型连续式风洞隔离门用于实现对风洞洞体回路的阻断和连通，以确保在非正常大气压力试验过程中，参试人员能快速、安全、高效的进入试验区，对试验条件进行更换，达到降低试验能耗，提升试验效率的目的。设计了基于PLC控制器为核心的大型连续式风洞隔离门控制系统方案，采用分布式I/O技术和多电机协同控制方法，实现了隔离门的精准、协同、可靠运行。经实际验证，隔离门控制系统软、硬件设计合理，系统全流程运行安全稳定可靠，满足大型连续式风洞对隔离门在提升试验效率，降低试验能耗的要求。

Abstract:

The isolation of large continuous wind tunnels is used to cut off and connect the wind tunnel circuit. It ensures that test personnel can enter the test area quickly, safely and efficiently to replace test conditions during tests under abnormal atmospheric pressure, so as to reduce test energy consumption and improve test efficiency. A control system scheme for the isolation of large continuous wind tunnels based on a PLC controller as the core is designed. By adopting distributed I/O technology and multi-motor cooperative control method, the precise, coordinated and reliable operation of the isolation is realized. Practical verification shows that the software and hardware of the isolation control system are reasonably designed, and the system operates safely, stably and reliably throughout the whole process, which meets the requirements of large continuous wind tunnels for the isolation in improving test efficiency and cutting down test energy consumption.