面向节能降耗的电熔镁炉智能闭环设定控制方法研究

项目名称： 面向节能降耗的电熔镁炉智能闭环设定控制方法研究

项目编号： No.61503066

项目类型： 青年科学基金项目

立项/批准年度： 2016

项目学科： 自动化技术、计算机技术

项目作者： 吴志伟

作者单位： 东北大学

项目金额： 20万元

中文摘要： 电熔镁炉是典型的高耗能设备，熔炼过程具有多种复杂动态特性。熔炼过程能耗与三相电极电流设定值直接相关，及时有效的获得合适的电流设定值对实现节能降耗具有重要意义。本项目拟针对复杂动态环境下电熔镁炉熔炼电流的设定控制问题，开展如下研究：1）利用熔炼过程所能获得的前馈和反馈信息，采用前馈、反馈、预报和补偿等基本控制思想，提出一种基于前馈和反馈信息的三相电极电流值智能闭环设定控制方法；2）在所提闭环设定控制方法基础上，分析炉内电热转换机理并结合过程数据，开展单吨能耗预报模型研究，用于实现电流设定值前馈补偿；3）利用人工决策经验和过程数据所蕴含的工艺知识，开展基于不同工况的单吨能耗目标值智能决策方法研究，为实现电流闭环设定提供前提条件；4）以实际电熔镁炉为背景，开展上述方法的仿真和工业验证研究。本项目申请将为电熔镁炉电流值的闭环设定提供理论方法，并在其他复杂工业过程的设定控制中具有推广价值。

中文关键词： 节能降耗；电熔镁炉；闭环设定；预报模型；智能决策

英文摘要： The fused magnesium furnace is a typical high energy consumption equipments, and the smelting process has complex and different dynamic characteristics. The energy consumption is directly related to the setpoints of the currents running in the three-phase electrodes, timely and effectively obtaining the current setpoints is of vast importance for reducing the energy consumption for fused magnesium furnace. This project focuses on solving the problem of currents setting for the three-phase electrodes in complex dynamic environment. The main research context includes:1) Analyzing the feedforward and feedback information for smelting process, using the control methods such as feedforward , feedback, prediction and compensation, and proposing current intelligent closed-loop setting control method. 2) Based on the current intelligent closed-loop setting control method, by analyzing the electric heating conversion principle and combined with the process data, proposing an energy consumption per ton model of product, to implementing the current setpoints feedforward compensation. 3) By using the human decision experiences and the process knowledge contained in process data, proposing an intelligent decision method for energy consumption per ton desired values in different conditions. 4) By taking the actual fused magnesia furnace as an example, carrying out the research of simulation and industrial validations for the above methods. This research project provides a theoretical framework for current closed-loop setting control of the fused magnesium furnace. The research achievements can also be applied to other complicated industrial processes with similar features.

英文关键词： energy-saving;fused magnesium furnace;closed-loop setting control;prediction model;intelligent decision