宽厚板
寬厚闆
관후판
WIDE AND HEAVY PLATE
2014年
2期
45-48
,共4页
PLC%PID%变频器%热井%恒液位控制
PLC%PID%變頻器%熱井%恆液位控製
PLC%PID%변빈기%열정%항액위공제
PLC%PID%Frequency converter%Hot well tank%Constant liquid level control
针对舞钢公司 VOD 炉热井系统对恒液位的需要，介绍了一种水箱恒液位 PID 控制系统的开发与设计。该系统通过西门子 S7-400系列 PLC 指令实现对液位的 PID 闭环控制，液位传感器将液位值作为反馈信号传给 PLC，对变频器进行调节控制，实现电机转速调节，从而达到恒液位控制目的。运行结果表明改造取得了节能降耗的效果。
針對舞鋼公司 VOD 爐熱井繫統對恆液位的需要，介紹瞭一種水箱恆液位 PID 控製繫統的開髮與設計。該繫統通過西門子 S7-400繫列 PLC 指令實現對液位的 PID 閉環控製，液位傳感器將液位值作為反饋信號傳給 PLC，對變頻器進行調節控製，實現電機轉速調節，從而達到恆液位控製目的。運行結果錶明改造取得瞭節能降耗的效果。
침대무강공사 VOD 로열정계통대항액위적수요，개소료일충수상항액위 PID 공제계통적개발여설계。해계통통과서문자 S7-400계렬 PLC 지령실현대액위적 PID 폐배공제，액위전감기장액위치작위반궤신호전급 PLC，대변빈기진행조절공제，실현전궤전속조절，종이체도항액위공제목적。운행결과표명개조취득료절능강모적효과。
For the demand of hot well tank in Wugang′s VOD system on constant liquid level,the paper intro-duces the development and design of PID for constant liquid level control of hot well tank. The system uses the com-mand from Siemens S7 - 400 series PLC to achieve PID closed loop control over liquid level. The PLC receives the sig-nal from liquid level sensor as feedback. The signal from liquid level sensor feedback to PLC controls the frequency con-verter. The converter regulates the rotational speed of motor so as to achieve constant liquid level control. The opera-tion result proves that the revamp reduces power consumption and maintenance cost.
