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首页> 外文期刊>Journal Of The South African Institute Of Mining & Metallurgy >Influence of the power supply on the behaviour of DC plasma arcs - a modelling study
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Influence of the power supply on the behaviour of DC plasma arcs - a modelling study

机译：电源对直流等离子体弧行为的影响 - 建模研究

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摘要

Direct current (DC) arc furnaces account for a significant proportion of installed pyrometallurgical capacity worldwide. Their applications include steel recycling and smelting of various materials such as ferrochromium, ferronickel, ilmenite, and other alloys. The rectifier power supply for such units is a major capital cost item, and errors in the design can result in considerable limitations being placed on the operating window of the furnace. In the present paper, computational plasma arc models developed using open-source software tools are applied to gain insight into the nature of interactions between the DC rectifier's transient behaviour, passive circuit elements such as smoothing chokes, and the dynamics of the arc. The effect of parameters such as choke inductance and thyristor firing angle is examined and interpreted with regard to possibilities for optimization of the design and operation of DC furnace power supplies in the future.
机译：直流（DC）弧炉占全球安装的PyromePurgicallical的大量比例。 它们的应用包括钢回收和熔炼的各种材料，如铬铁，铁克罗尼克，钛铁和其他合金。 这些单元的整流电源是主要的资本成本项目，设计中的错误可能导致放置在炉子的操作窗口上的相当大的限制。 在本文中，应用了使用开源软件工具开发的计算等离子体弧模型，以了解DC整流器瞬态行为之间的无源电路元件（如平滑扼流圈）和弧的动态的相互作用的性质。 考虑了参数诸如扼流电感和晶闸管触发角的效果，并考虑了未来DC炉电源的设计和操作的优化的可能性。

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