铜电解过程在线多尺度能效分析

来源期刊:中南大学学报(自然科学版)2021年第6期

论文作者:宋彦坡 高东波 彭小奇 王晓娜

文章页码:1934 - 1944

关键词:铜电解;能效分析;综合能耗;节能;多尺度分析

Key words:copper electrolysis; energy efficiency analysis; comprehensive energy consumption; energy saving; multi-scale analysis

摘    要:为了对铜电解过程的能效进行精确分析,运用支持向量机、软测量等方法构造一种在线多尺度能效分析方法并开发相应的软件系统。研究结果表明:该方法较好地解决了阴极铜产量实时预测、作业阶段在线识别等技术问题,实现了电解过程能效分析的在线化与自动化;多种时间尺度下的能效分析结果更加清晰,能系统地描述过程的能效状况,为相关操作与决策人员提供了从宏观到细节的更多层面的辅助信息;能效计算结果精度高,系统级能效计算误差低于2%。

Abstract: In order to precisely analyse the energy efficiency in the copper electrolysis process, a multi-scale analysis method was proposed and the corresponding software system was developed by combining the support vector machine and the soft-measuring technique. The results show that with the method proposed in this paper, the technical difficulties including the real-time prediction of cathode copper output and the online identification of operation stage are solved, and the online energy efficiency analysis is realized. At the meantime, by making the analysis at the multiple time scales, the energy efficiency of the electrolysis process can be described more clearly and systematically, and thus auxiliary information covering macro to micro levels can be provided for the process operation and decision-makings. The energy efficiency calculated by the method is accurate, and the error of the indexes at the system level is less than 2%.

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