基于PLC和变频器的电站锅炉引风机控制系统  

The Usage of Frequency Converter and PLC-based Control System for Utility Boiler Induced Draft Fan

作　　者：解辰[1] 李云鹏[1] 王彬[2] 

机构地区：[1]华北电力大学能源与动力工程学院 [2]河北华电石家庄裕华热电有限责任公司

出　　处：《电站系统工程》2008年第5期61-62,共2页Power System Engineering

摘　　要：本系统采用西门子S7-200PLC控制变频器实现引风机的无级调速,能保持炉膛内的恒定负压。与传统的控制系统相比,系统可靠性高,且能够节约大量电能。The system introduces the technology that PLC controls frequency converter to realize the non-step speed modulation of induced draft fan and can keep the constant negative pressure in furnace. Comparing with the system of traditional control, it can save plenty of electrical power.

关 键 词：PLC控制 变频器 引风机 

分 类 号：TK32[动力工程及工程热物理—热能工程]