| 基于静态设定和动态补偿的铈镨/钕萃取过程药剂量优化控制 |
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| 引用本文： | 朱建勇,杨辉,陆荣秀,徐芳萍,余运俊.基于静态设定和动态补偿的铈镨/钕萃取过程药剂量优化控制[J].自动化学报,2019,45(6):1186-1197. |
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| 作者姓名： | 朱建勇 杨辉 陆荣秀 徐芳萍 余运俊 |
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| 作者单位： | 1.华东交通大学电气与自动化工程学院 南昌 330013 |
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| 基金项目： | 国家自然科学基金61563015国家自然科学基金61733005江西省自然科学青年基金20171ACB21039江西省博士后项目2015KY18 |
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| 摘 要： | 针对目前稀土铈镨/钕萃取生产过程人工控制导致生产指标波动大的问题，提出一种新的药剂量优化控制方法.首先针对入矿条件各参数的重要程度不一样，采用特征属性加权的案例推理方法确定药剂量（萃取量和洗涤量）预设定值；然后根据铈镨/钕稀土溶液颜色与组分含量密切相关的特点，采用最小二乘支持向量机（LS-SVM）建立基于稀土溶液颜色的组分含量软测量模型，再根据软测量得到的组分含量与目标组分含量的差值，采用模糊推理技术补偿药剂量预设定值，实现稀土萃取过程组分含量的动态优化控制.试验结果表明本文方法的有效性.
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| 关 键 词： | 稀土萃取 颜色特征 药剂量 案例推理 模糊推理 |
| 收稿时间： | 2017-11-22 |
Static Setting and Dynamic Compensation Based Optimal Control for the Flow Rate of the Reagent in CePr/Nd Extraction Process |
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| Affiliation: | 1.School of Information Science and Engineering, East China Jiaotong University, Nanchang 3300132.Key Laboratory of Advanced Control and Optimization of Jiangxi Province, Nanchang 3300133.Information Engineering School, Nanchang University, Nanchang 330029 |
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| Abstract: | Manual operation mode easily leads to a large fluctuation of production indices such as component content in the rare earth (RE) cascade extraction industry. A static setting and dynamic compensation based reagent dosage control is proposed to stabilize extraction production running. Firstly, the flow rates of the extractant and the detergent are determined according to feed conditions by case based reasoning (CBR). And then the component content of Nd is measured according to color feature of rare earth solution. The fuzzy reasoning model is used to compensate the flow rates of the extractant and the detergent in order to compliment stable running of the extraction production process according to the difference between the soft-measured value and the given value. Experimental results show the effectiveness of the proposed method. |
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