摘要
与一般的以转速为控制对象的变频系统不同,涉及流体工艺的变频系统通常都是以流量、压力、温度、液位等工艺参数为控制量,实现恒量或变量控制,这就需要变频器工作于PID方式下,按照工艺参数的变化趋势来调节泵或风机的转速。
The AC inverter sytem with the liquid technics are normally dealing with the flow, the pressure, the temperature and the liquid position which are different from the speed control. In order to realize the constant or variable control, PID method are needed in AC system. Then the speed of the pump and fan are in function.
出处
《自动化博览》
2008年第10期44-46,51,共4页
Automation Panorama1
关键词
变频器
流体工艺
PID控制
温度控制
AC inverter
liquid technics
PID control
Temperature control
