Frequency domain model of the electrical arc and its verification

Świszcz, P.

doi:10.1109/eeeic.2013.6549610

Cited by 4 publications

(1 citation statement)

References 14 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Most of the models worked out so far are two-step -they consist of a deterministic part extended further with the help of chaotic, stochastic or modulated components [3], [4], [5], [6], [7]. Modelling of the deterministic V-I characteristic can be made using, among others, nonlinear differential equations [5], [6], [8], [9], piece-wise linear approximations [4], mixed approximations using exponential and linear functions [4], approximations using shifted and amplified step functions [10], and the frequency domain approach is also possible [11]. Those approaches have different complexity and modelling accuracy.…”

Section: Introductionmentioning

confidence: 99%

Electric Arc Furnace Power Quality Analysis Based on a Stochastic Arc Model

Grabowski

Walczak

Klimas

2018

2018 IEEE International Conference on Environment and Electrical Engineering and 2018 IEEE Industrial and Commercial Power Syst

View full text Add to dashboard Cite

Electric arc furnaces (EAF) are commonly used in steel industry. Unfortunately, nonlinear characteristic of the arc furnace and its stochastic behavior bring about many problems, e.g. voltage flicker and waveform distortions. The AC furnaces are usually modelled using combined models which divide the phenomenon taking place in real objects into a deterministic and a stochastic or chaotic parts. The former can be expressed by a nonlinear differential equations. The paper goal was to take advantage of the earlier results, i.e. a closed form of the solution to one of the most popular nonlinear differential equations used for the AC electric arc modelling, and start research towards a complete EAC model which covers not only the deterministic but also the time-varying nature of the arc waveforms. Such a model can be helpful, among others, in solution to power quality problems in EAF supplying networks. Theoretical considerations have been illustrated by some examples and the results have been compared with measurements.

show abstract