风洞油源控制系统的设计

The Control System Design of A certain Wind Tunnel Oil Source System

摘要:

油源系统作为风洞的动力系统，在风洞运行和试验中担当着重要角色，而由于长期处于高油高蚀的环境，其各种部件和机构非常容易老化。文中风洞是国内主力生产型风洞，任务繁重，功能要求高，原油源控制系统已非常老旧，故障频发，维修工作复杂耗时，已不能很好的满足试验需求，因此对风洞油源控制系统的重新设计显得尤为重要。针对这一现状，设计了基于PLC控制的风洞油源控制系统，包括系统硬件设计、下位机PLC软件设计和人机界面设计等，综合部署在风洞测控间和风洞现场，实现了风洞油源系统的机泵组启停控制、油压无级调节、油液冷却控制、油源系统状态监测、本地/远程控制等控制功能和操作方式，具有较高的自动化程度、状态监测和功能拓展能力。

Abstract:

As the power system, oil source system plays a significant role in wind tunnel tests. Due to the long-term high pressure and corrosive operating environment, its components and structures could be facing aging problems. The typical wind tunnel is the main productive wind tunnel domestically which undertakes high frequent tasks in this paper. Consequently, the oil control system was reaching the design lifetime along with a series of failures. With the increasing time-consuming and sophisticated maintains work, wind tunnel will no longer fulfill the testing tasks. In such circumstances, a re-design of the oil control system becomes more urgent and crucial. This paper introduced the re-design of the certain wind tunnel oil source control system based on PLC in terms of hardware design, PLC software design and UI design. More specifically, it achieved multiple run-time functions such as start-stop control of machine pumps, stepless adjustment of oil pressure, oil cooling control, run-time condition monitoring, local and remote control for wind tunnel oil source system. This design provide a high degree of automation and expansion capability for the system.