电弧炉电极调节的多模态控制策略模型划分

针对电弧炉电极弧长强随机扰动对冶炼时间、电耗、产品质量及电网的不利影响,采用单一控制策略无法适应不同冶炼工况要求的情况,提出在炼钢过程中针对不同阶段工艺对冶炼温度和功率的要求,在专家经验的基础上,采用多模态控制策略的划分手段,在线辨识电弧炉特征运动状态,分阶段选择最优控制器加以解决.给出了多模态划分、实施方案及采用的控制策略算法模型,可为电弧炉电极调节系统优化设计提供理论依据及模型参考.

Model Division of Multi-modality Control Strategy of Arc Furance Electrode Regulation

According to the disadvantage influence of electrode arc length＇s strong random disturbs of electric arc furnace to the duration of heat,power consumption,product quality and electric network,using a single control strategy can not satisfy the requirements of different work conditions.This paper bases on the experiences of experts,puts forward division measures of multi-modality control strategy for different requirements to adjust to the smelting temperatures and power of different stages in steel-making process.It identifies the feature motion state of the electric arc furnace on line,and then selects the optimal controller in different phases to deal with the problem.In this paper,multi-modality division,program implementation and algorithm model used in control strategy provide a theoretical basis and model reference for the optimal design of electric arc furnace＇s electrode regulator system.