基于工况槽况的电解生产控制研究及实现  

Research & realization of aluminium reduction control based on cell working condition analysis

作　　者：汪成亮[1,2] 罗昌银[1] 庞栩[1] 陆志坚[1] 

机构地区：[1]重庆大学计算机学院,重庆400044 [2]重庆大学电气工程学院,重庆400044

出　　处：《轻金属》2009年第4期24-28,共5页Light Metals

基　　金：重庆市自然科学基金(CSTC;2007BB6118);中国博士后科学基金(20080430750)资助项目

摘　　要：电解铝控制系统主要基于对加料间隔、设定电压这两个控制变量的调整来实现对浓度的控制,由于目前的控制没有考虑各电解槽自身的基础性能、当前生产状况、以及一段时间内电解铝浓度变化趋势,所采用的控制策略缺乏足够的针对性。本研究对贵州电解铝厂5车间1厂房电解槽的控制系统进行改造,提出了槽况、工况的概念来反映槽自身的生产性能,提出了一套改进的控制策略,即槽控机在参与控制时,要根据当前的槽况、工况以及浓度来对控制变量进行对应调整,从而使控制更细、更接近工艺要求的设定值,达到了节能降耗的目的。Aluminium reduction control system controls concentration by adjusting the following two variables： feeding interval and setting voltage; Due to lack of consideration of the aluminium cell, the current of production and concentration changing trend, the control strategy is lack of target. This research is based on the control reform which is implemented in the first plant of the fifth workshop of Aluminium Smelter in GuiZhou, some concepts such as the quality of the aluminium cell and the working condition of the aluminium cell are used to measure aluminium cell;A new control strategy is proposed that cell controller changes the value of variables as the quality of the aluminium cell, the working condition and concentration changed so as to improve control accuracy to realize energy conservation.

关 键 词：电解铝 智能控制 浓度判定 控制策略 

分 类 号：TF821[冶金工程—有色金属冶金] TP273.5[自动化与计算机技术—检测技术与自动化装置]