摘要
介绍了一种以PLC直接程序控制的变压变频调速实用技术,以城市给水管网最不利点水压为控制目标,用逐时统计模式代替水压采样反馈环,对水厂二级泵站开环控制;该系统以其独特的设计,简明实用的特点,成功应用,取得明显的节能效果和显著经济效益。
This paper introduces practical new techique for secondary pump station in water plant withVVVF controlled by PLC in the way of direct program, in which controlling target is set on the most disadvantagepiont and hour after hour stastics model takes the place of feedback loop. Such a system turns out to be successfuldue to simple characteristics with apparent result in energy saving and economic profit.
出处
《排灌机械》
2003年第4期31-33,共3页
Drainage and Irrigation Machinery
