变频调速系统中过程监控模块的设计

Design of process monitoring module in frequency control system

变频调速系统的安全性往往依赖于变频器,虽然变频器具有一定的保护功能,但主要保护的是变频器本身,很难实现对不确定的马达和未知的负载实现过程监控。设计了一个可嵌入在系统中的监控模块,采用粗糙集理论,建立预警报警决策表,初步解决了变频调速系统的过程监控的问题,实际应用结果表明,该方法有一定的可行性和有效性。

The security of frequency control system is often dependent on the transducer.Transducer has the protection function, but it is mainly to protect itself, and hard to realize the process monitoring for uncertain motors and unknown load.This paper puts forward a monitoring module which can be embodied in the system.The module uses rough set theory,establishes early warning alarm decision-making table,and has initially solved the problem of process monitoring in frequency control system.The results of the actual application demonstrate the feasibility and effectiveness of this method.