The Fuzzy Logic Control (FLC) was used in the nonlinear, multivariable, and time varying system to control coal flotation. The control algorithm includes two different methods of adding reagents. First, the reagent is...The Fuzzy Logic Control (FLC) was used in the nonlinear, multivariable, and time varying system to control coal flotation. The control algorithm includes two different methods of adding reagents. First, the reagent is coarsely adjusted according to the solid content in the feed and the reagent consumption per ton of coal; And then it is finely adjusted under the control of the Fuzzy Logic Algorithm according to the ash content of the clean coal. The industrial experiments and the site application show that this control model can keep a stable ash level of clean coal and cut down obviously the reagent consumption.展开更多
燃煤锅炉是一种重要的能量转换设备,对其燃烧过程的稳定控制是燃料充分燃烧的必要条件。为提高锅炉系统的环保性,采用工控机(Industrial Personal Computer,IPC)与可编程逻辑控制器(Programmable Logic Controller,PLC)相结合的方式,设...燃煤锅炉是一种重要的能量转换设备,对其燃烧过程的稳定控制是燃料充分燃烧的必要条件。为提高锅炉系统的环保性,采用工控机(Industrial Personal Computer,IPC)与可编程逻辑控制器(Programmable Logic Controller,PLC)相结合的方式,设计了燃煤锅炉的分布式控制系统。以给煤量控制为例,阐述了控制方法的设计过程。依据燃煤锅炉的工艺过程,采用WinCC组态软件设计监控系统,以实现锅炉的远程交互控制,提高锅炉运行的安全性和稳定性。展开更多
基金Supported by National Key Science and Technology Development Project of the ninth"five-year-plan"(95 2 15 0 10 5 0 1)
文摘The Fuzzy Logic Control (FLC) was used in the nonlinear, multivariable, and time varying system to control coal flotation. The control algorithm includes two different methods of adding reagents. First, the reagent is coarsely adjusted according to the solid content in the feed and the reagent consumption per ton of coal; And then it is finely adjusted under the control of the Fuzzy Logic Algorithm according to the ash content of the clean coal. The industrial experiments and the site application show that this control model can keep a stable ash level of clean coal and cut down obviously the reagent consumption.
文摘燃煤锅炉是一种重要的能量转换设备,对其燃烧过程的稳定控制是燃料充分燃烧的必要条件。为提高锅炉系统的环保性,采用工控机(Industrial Personal Computer,IPC)与可编程逻辑控制器(Programmable Logic Controller,PLC)相结合的方式,设计了燃煤锅炉的分布式控制系统。以给煤量控制为例,阐述了控制方法的设计过程。依据燃煤锅炉的工艺过程,采用WinCC组态软件设计监控系统,以实现锅炉的远程交互控制,提高锅炉运行的安全性和稳定性。