Results of Modeling Operation of the High-Speed Regulator of Non-Contact Secondary Voltage of Furnace Transformer of the High-Power Arc Steel Furnace in Constant Primary Current Mode

Yakimov, Ivan A.; Maklakov, Alexander S.; Voronin, Stanislav S.; Maklakova, E.A.

doi:10.1016/j.proeng.2017.10.725

Cited by 5 publications

(4 citation statements)

References 0 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Using the relationship determined for power-voltage characteristics, and replacing the arc by the voltage source formula (28) and (29) at identical devices, we can present the coefficient K N in the following form: (30) and at different devices:…”

Section: Voltage Fluctuationsmentioning

confidence: 99%

“…In the research using computer measuring techniques, the following models can be distinguished: one based on a series connected resistor and inductance [10,11], the time-varying voltage source defined as a nonlinear function dependent on the length of the electric arc [12][13][14][15], and the classic based on nonlinear differential equations using Mayra equations and Cassie [16,17]. We should also mention the recently widely used simulation programs [18][19][20][21][22][23][24][25][26], including those based on neural networks [27][28][29][30].…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Estimating the Impact of Arc Furnaces on the Quality of Power in Supply Systems

Łukasik

Olczykowski

2020

Energies

View full text Add to dashboard Cite

Arc furnaces, due to their high unit power and load nature, belong to the receivers affecting the power quality. A dynamically changing electric arc is the main source of disturbances generated by arc devices. This current article presents the results of model tests of disturbances caused by arc furnaces. It also presents the attempts to estimate the power supply conditions for arc furnaces, so that they do not generate unacceptable disturbances to the power system. Various models of the electric arc are proposed. The values of the elements making up the furnace supply system were based on actual parameters. In these networks, measurements of electricity quality indicators were carried out, which allowed us to refer to the obtained results of model tests with the real values. Accordingly, to the real conditions, the values of the short-circuit power of the network and the power of furnace transformers were also adopted in the tests.

show abstract

Section: Voltage Fluctuationsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Estimating the Impact of Arc Furnaces on the Quality of Power in Supply Systems

Łukasik

Olczykowski

2020

Energies

View full text Add to dashboard Cite

show abstract

“…The most important methods include dynamic [26][27][28], classic based on nonlinear differential equations [29], based on resistance and inductance [30], using a voltage source variable in time, and defined as a nonlinear function depending on the length of the electric arc [31][32][33]. For modeling arc devices, computer simulation programs are widely used [34][35][36][37][38][39][40][41][42].…”

Section: Modeling Of Voltage Fluctuations In the Operation Of A Singl...mentioning

confidence: 99%

Modeling of Voltage Fluctuations Generated by Arc Furnaces

Olczykowski¹

2021

Applied Sciences

View full text Add to dashboard Cite

Arc furnaces can be classified as electricity receivers, which largely affect the quality of electricity in the power system. Voltage fluctuations are the main disturbance generated by arc furnaces. The effects of voltage fluctuations include the phenomenon of flickering light. Apart from voltage fluctuations, arc devices, to a lesser extent, are the source of current and voltage asymmetry, voltage curve distortion, and voltage dips. The main purpose of theoretical considerations is to assess the voltage fluctuations generated by arc furnaces. The article presents a model of an arc device in which the arc has been replaced by a voltage whose value depends on the arc length. It presents also the results of the analysis of measurements of the parameters characterizing voltage fluctuations and flicker indicators.

show abstract

“…The operational asymmetry is reduced by the use of the electrode position control system [20,21] and additional devices aimed at improving the energy quality [22][23][24][25]. It should also be mentioned that the arc furnaces is the source of fast voltage fluctuations [26][27][28][29][30][31].…”

Section: Introductionmentioning

confidence: 99%

Electric Arc Furnaces as a Cause of Current and Voltage Asymmetry

Olczykowski

2021

Energies

View full text Add to dashboard Cite

In the case of three-phase arc furnaces, two types of asymmetry can be distinguished: constructional and operational. The structural asymmetry is related to the construction of high-current circuits supplying the arc furnace. The knowledge of the parameters of the high-current circuit allows to determine the operating characteristics of the arc device. The author proposed a method for calculating the real values of the resistance and reactance of the high-current circuit. For this purpose, tests were made to short-circuit the electrodes with the charge. During the short-circuit, with the use of a power quality analyzer, measurements of electrical indicators were carried out, which allow to determine the parameters of the high-current circuit. A new method for determining voltage operational unbalance is also presented in this paper. The theoretical considerations presented in the article were verified in industrial conditions.

show abstract

Results of Modeling Operation of the High-Speed Regulator of Non-Contact Secondary Voltage of Furnace Transformer of the High-Power Arc Steel Furnace in Constant Primary Current Mode

Cited by 5 publications

References 0 publications

Estimating the Impact of Arc Furnaces on the Quality of Power in Supply Systems

Estimating the Impact of Arc Furnaces on the Quality of Power in Supply Systems

Modeling of Voltage Fluctuations Generated by Arc Furnaces

Electric Arc Furnaces as a Cause of Current and Voltage Asymmetry

Contact Info

Product

Resources

About