Experimental Study of the Impact of a DC Electric Arc Furnace on a Power Grid

Abdulveleev, Ildar R.; Khramshin, Timur R.; Корнилов, Г. П.; Abdulveleeva, R. R.

doi:10.1109/icieam51226.2021.9446320

Cited by 5 publications

(3 citation statements)

References 9 publications

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“…In-depth research on AC EAF has just been carried out in China and abroad in recent years, and the power supply model, power quality emission characteristics, and governance scheme of AC EAF have gradually become mature [7,8]. However, there is relatively little research on DC EAF, and there is still a lack of necessary understanding of the power quality characteristics and effects of large-capacity DC EAF when they are connected to the grid [9].…”

Section: Introductionmentioning

confidence: 99%

Power Performance Analysis of Large Capacity DC Electric Arc Furnace

Xia

2023

J. Phys.: Conf. Ser.

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With the development of iron and steel smelting technology, the application proportion of DC electric arc furnaces will gradually increase in the future. In this paper, the Simulink model is built with reference to the 130-ton DC electric arc furnace produced by ABB ZHONG Shan Transformer Company Limited. In the model, the power performances of the large-capacity DC electric arc furnace are explored by adjusting the trigger angle, DC side arc resistance, and DC reactor values. From the result of the simulation, the power performances of the DC electric arc furnace are mainly affected by the rectifier trigger angle and DC side arc resistance.

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Section: Introductionmentioning

confidence: 99%

Power Performance Analysis of Large Capacity DC Electric Arc Furnace

Xia

2023

J. Phys.: Conf. Ser.

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“…Many articles have discussed the power quality issues of DC and AC electric arc furnaces [6][7][8][9][10][11][12][13][14][15][16][17][18]. However, most of the research has been in the field of AC electric arc furnaces [6][7][8][9][10].…”

Section: Introductionmentioning

confidence: 99%

“…However, it does not affect the flicker intensity. In [15], the harmonic distortion at the power grid side is investigated in the presence of DC arc furnace loads. The experimental results of a 12-ton DC electric arc furnace are presented.…”

Section: Introductionmentioning

confidence: 99%

A Comprehensive Evaluation of Different Power Quantities in DC Electric Arc Furnace Power Supplies

2023

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Conventionally, DC arc furnaces are fed by thyristor rectifiers to control the level of current or power transferred to the load. With the advancement of high-power transistors, other structures such as diode rectifiers and DC choppers have been introduced and developed for the feeding system of DC electric arc furnaces. In this paper, the effect of different power supply systems on power quality indexes is discussed. In this regard, two types of feeding systems are considered, including a power supply system based on thyristor rectifiers and a power supply system based on diode rectifiers and DC choppers. In addition, different control methods, including constant current control (CCC) and constant power control (CPC), on DC electric arc furnaces are applied. For evaluating the power quality indexes, voltage and current harmonic distortion, unbalance of voltage and current, and power factor on the AC side are investigated for different power supply systems. Simulation results were performed with PSCAD/EMTDC software. It is shown that the power supply systems with diode rectifiers and DC choppers have superiority in comparison to the types based on thyristor rectifiers. According to the results, the average current THD is reduced from 16.55% in the thyristor rectifier to 8.40% in the chopper rectifiers with the CCC method and from 19.27% in the thyristor rectifier to 7.38% in the chopper rectifiers with the CPC method. Moreover, the average voltage THD is reduced from 5.67% in the thyristor rectifier to 3.02% in the chopper rectifiers with the CCC method. The result is similar to the CPC method. Furthermore, for a specific power supply system, the harmonic distortion is lower in the case of the CPC method than in the CCC method.

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