以某厂冷轧机乳化液冷却系统为背景,简要介绍电机和泵的调速特性,从系统设计角度重点介绍变频器选型、参数配置、电气原理和控制系统结构。实现变频调速恒压控制,可保证该系统调节的精度和稳定可靠运行。 Based on the cold rolling mill emulsion cooling system of a factory, the speed governing characteristics of the motor and pump are briefly introduced. The selection, parameter configuration, electrical principle and structure of the control system are mainly introduced from the system design point of view. Frequency control to achieve constant pressure control, to ensure the accuracy of the system regulation and stable and reliable operation.