中低温环境试验室的节能控温

Temperature Control for Cool-and-Warm Environmental Testing Chamber with Energy-Saving

传统的环境试验过程大量使用"冷热对抗"的调控方式实现恒温控制,这种控制方式的最大缺点是高能耗。为了节省系统功耗,提出了一种高效、节能的中低温环境实验室温度控制方法。根据热交换特性将控温过程阶段化,适时采取PID控制方式,采用智能化温度设定,集成了高精度数字滤波温度采集模块,以及人性化的交互操作平台,使整个控制系统能够快速、稳定地达到控制要求。实现了低能耗的运行目标,具有广阔的推广应用前景。

The most serious disadvantage of traditional control manner in environmental test process lies in its cooling-heat counterworking, which expends much more energy than needed.With the purpose of high-efficency and energy-saving,an advanced temperature control method is proposed for cool-and-warm environmental testing chamber.The whole control process is divided into several stages so as to make use of the natural characteristic of heat-exchange.The efficiency of the control system is promoted under the intelligent temperature set-points.The temperature inside the chamber is kept stable since a PID adjustor can work in due time and shorten the transient period of temperature control.A high-precisis temperature collection module with digital filter,as well as a personalized operation platform,is also be equipped with to ensure good performance of the system.On the whole,the proposed method can realize the target of low energy consumption and can be extended to other simular applications.