变频器在中央空调控制系统中的应用

Drive in the Central Air-conditioning Control System

中央空调变频控制系统是通过安装在冷却水系统回水主管上的温度传感器来检测冷却水的回水温度,并可直接通过设定变频器参数使系统温度调控在需要的范围内。变频器控制系统可增加首次起动全速运行功能,通过设定变频器参数可使冷却水系统充分交换一段时间,然后再根据冷却回水温度对频率进行无级调速,并且变频器输出频率是通过检测回水温度信号及温度设定值经PID运算而得出的。

Frequency control system is the central air conditioning installed in the cooling water system through the return temperature sensor on the head to detect the cooling water return temperature, and can set the drive parameters directly through the system temperature control range is needed. Inverter control system can increase the function of the first starting at full speed, by setting the drive parameters can make a full exchange of the cooling water system for some time, and then return water temperature under the cooling frequency stepless speed regulation, and the inverter output frequency is Return water temperature signal and by detecting the temperature setting value has been obtained by the PID operation.