发表机构
Johannes Kepler University; K1-met（约翰内斯·开普勒大学; K1-met）
机构由 AI 辅助整理，请以论文原文为准。AI 中文总结
针对氢等离子体熔炼还原（HPSR）技术中电弧不稳定的问题，采用带自适应状态控制器的降压变换器快速电流控制器实现主动稳定，结合立体测量系统分析电弧特性，为动态电弧控制奠定基础。
AI 中文摘要
氢等离子体熔炼还原（HPSR）是一种极具前景的低碳CO₂钢生产技术，但不稳定的电弧工况会限制能源效率、氢气利用率并加剧电极磨损。本文探讨了供电特性的影响，其可能是额外不稳定性的来源；为实现主动稳定，采用了带自适应状态控制器的降压变换器快速电流控制器；为分析电弧稳定性，提出了用于电弧重构的立体测量系统。结果表明，在恒定电流下，电弧长度与测得的电弧电压存在明确相关性，因此可通过测得的电压确定电弧稳定性，这些发现为通过快速电气干预实现动态电弧控制奠定了基础。
英文摘要
The Hydrogen Plasma Smelting Reduction (HPSR) is a promising technology for low-CO$_2$ steel production. However, unstable arc conditions limit energy efficiency, hydrogen utilization, and electrode wear. In this paper, we discuss the influence of the electrical supply characteristics, which can be a source of additional instability. For active stabilization, a fast current controller using a buck converter with an adaptive state controller is used. For analyzing arc stability, a stereoscopic measurement system for reconstructing the arc is presented. The results show a clear correlation between the arc lengths and the measured arc voltage at constant current. Therefore, arc stability can be determined by the measured voltage. These findings build the basis for dynamic arc control by fast electrical interventions.
Comments15 pages, 16 figures,
