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.
出处
《电站系统工程》
北大核心
2008年第5期61-62,共2页
Power System Engineering
关键词
PLC控制
变频器
引风机
PLC control
frequency converter
induced draft fan
