变风量末端控制器的设计与仿真

为探求变风量空调末端双闭环串级控制模型的节能策略,通过设备选型、方案对比等过程确定温度传感器Pt100、风速传感器西门子QVM62.1、CPU224XP及西门子执行风阀L680t40为主要元器件,进行变风量末端半实物仿真控制器设计。结果表明:下位机可编程逻辑控制器(PLC)与上位机PC端能够基于PC Access软件实现通信,并通过LabVIEW实现监控管理功能。可见设计仿真开发的空调末端控制器能够与实验研究平台实现互通,进行双闭环串级的空调末端性能研究,从而为智能建筑节能降耗研究提供有力支持。

Design and Simulation of VAV Terminal Controller

In order to explore the double-closed-loop cascade control model at the terminal of VAV air conditioning and explore the energy-saving strategy, the design of the semi-physical simulation controller was used to investigate to do the research after comparing the equipment selection and hardware construction schemes. The results show that the temperature sensor Pt100, the wind speed sensor Siemens QVM62.1, CPU224XP as well Siemens executive wind valve L680t40 can be the main components, and the lower computer PLC and PC based on PC Access software communication, can achieve the monitoring and management function through LabVIEW. It is concluded that the experimental research platform of air conditioning terminal controller provided by the design and simulation can provide strong support for the research of energy saving and consumption.