基于PLC与变频器的空压机恒压供气系统

Constant Pressure Air Supply System of Compressor Based on PLC and Inverter

本文介绍了一种基于PLC与变频器的空压机恒压供气系统的工作原理与构成。系统中高压变频器采用一拖二方式,控制一台活塞式空压机的转速,以保持整个系统的恒压供气。另外由于系统涉及到不同PLC以及PLC与其它设备之间的通讯,通过采用不同通讯协议构建了一个通讯网络。以某矿为例,我们介绍了系统的具体实现。

This paper introduces the composition and operational pdnciple of an Air Compressor constant pressure air supply system based on PLC and converter. In the system, the High-voltage inverter which can control two motors, make the system obtain a constant pressure gas by controlling a piston compressor speed. Others, due to the systems involved the communication between different PLC and other equipments, we solved this problem to build a communications network through the use of different communication protocols. Base on a mine,we introduced Specifically the system how to achieve.