基于双PI控制的水煤粉制备系统设计

Design of Water-coal Powder Mixer System Based on Double-PI Control

针对传统的水煤粉制备系统产品质量不稳定的问题,设计了一套双PI控制的水煤粉制备系统,介绍了系统的工作原理、硬件组成和程序设计。该系统以OMRON C200HE PLC为核心,利用模拟量单元AD003和DA003及外部执行器分别构成煤粉量调节回路和水量调节回路,由2条PID指令自动控制,实现了水煤粉制备系统的随动控制。

In view of the instability of product quality in traditional water-coal powder mixer system,a set of water-coal powder mixer system based on double-PI control was designed.The system＇s working principle,hardware components and program design were introduced.The system takes OMRON C200HE PLC as core and uses analog unit AD003,DA003 and external elements to constitute adjustment circuits of quantities of coal powder and water,which realizes follower control of water-coal powder mixer system by two PID commanders.