Identification and modelling of a three phase arc furnace for voltage disturbance simulation

Collantes-Bellido, R.; Gómez, Tomás

doi:10.1109/61.634210

Cited by 109 publications

(40 citation statements)

References 4 publications

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“…Aurelio García-Cerrada et al [5] has compared the performance of TCR based and VSI based flicker compensation experimentally from the arc furnace installation. An electrical arc furnace is a stochastic non linear load [6].The author has proposed a model for an arc furnace by assuming that whenever there is current, the voltage drop is constant for fixed for fixed arc length.…”

Section: Vmentioning

confidence: 99%

Power Quality Issues of Electric Arc Furnace and their Mitigations -A Review

Singh¹,

Singh²,

Singh³

2017

IJAERS

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Section: Vmentioning

confidence: 99%

Power Quality Issues of Electric Arc Furnace and their Mitigations -A Review

Singh¹,

Singh²,

Singh³

2017

IJAERS

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“…baskets of steel) with variable transformer taps (tap 6, 7, and 9) and fixed reactor tap (4). Figures 7 to 10 show the comparison between the measured and the simulated data for the arc resistances and reactances, the powers (apparent, active, arc and reactive) and the power factors for all three phases.…”

Section: Electrical Modelmentioning

confidence: 99%

“…There are already a number of papers that present various modeling approaches to several sub-systems of electric arc furnaces, from basic arc models 1,2) to complex flicker simulations, [3][4][5][6][7] which tend to prevail due to the enormous impact of EAFs on electrical networks. Since the EAF represents a complex system these articles usually focus on a certain EAF-related problem and in some instances use simulated, laboratory-generated data for the analysis, which is easier to process and gives more convenient results.…”

Section: Introductionmentioning

confidence: 99%

Mathematical Modeling and Experimental Validation of an Electric Arc Furnace

2011

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The following paper presents an approach to the mathematical modeling of 3-phase AC, electric arc furnace (EAF) processes for control-design and process-optimization purposes. The EAF can be, from the modeling point of view, considered as a combination of electrical, hydraulic, chemical, thermal and several energy-balance sub-processes or sub-models. In this paper the modeling of the electrical and hydraulic submodels is presented in detail, since the two represent a very complex and important sub-system of the complete EAF model. The presented sub-models are obtained in accordance with different mathematical, electrical and mechanical laws. Several parameters, which are necessary to successfully identify the scrapmelting process, were fitted experimentally, using the measured operational data of an 80 MVA AC furnace during different periods of the melting process. Similar data has also been used for the validation of the developed model in typical EAF operating situations. The aim of the presented EAF modeling is to obtain an accurate, robust and realistic mathematical model of the scrap-melting process, which will later be used for control-design purposes, the optimization of the energy consumption and the development of an operatortraining simulator. The main advantage of our modeling approach over the existent EAF-related models is a more macroscopic level of modeling, which accurately simulates the electrical and hydraulic processes under different conditions in the EAF.KEY WORDS: EAF; electric model; hydraulic model; experimental validation; harmonic analysis. reactances; etc.) and non-electrical (transformer and reactor taps; number of short circuits and arc breakages; electrode controller outputs; electrode position; temperatures of the cooling panels; composition and weight of the additives; consumption of oxygen, carbon, gas; etc.) values sampled over a 1-s time window. At this stage of the model's development, nearly all of the electrical and some of the mechanical values were used to obtain the correct parameters of the sub-models describing the electrical properties of the EAF. Additionally, since the properties of the electric arcs are dependent on the position of the hydraulically actuated electrodes, the presented hydraulic sub-model for the electrode control completes the particular modeling assembly. Measurements and Modeling EAF Operation DataFor the purposes of this study, the measurements were made during different operational situations in the EAF melting process. The obtained data included measurements of the effective values, i.e., the root mean squares (RMS), sampled over a 1-s window of the following: phase voltages; phase-to-phase voltages; arc voltages; phase currents; power factors; arc resistances and reactances; total circuit resistances and reactances; apparent, active, reactive and arc power; total energy consumption; etc. The measurements were made with the electrode-control and data-acquisition system (E.M.P.E.R.E.). 8) ModelingThe following section presents the approach to mod...

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“…Electric arc furnace, the main generator of voltage flicker, behaves in the form of a constant reactance and a variable resistance. of 0.26% R. Collantes-Bellido et al [3] have analysed about the Identification and Modeling of a Three Phase Arc Furnace for Voltage Distribution Simulation in his paper "voltage flicker compensationusing statcom" [3].The author concluded that the conceptof Huge non-linear industrial loads such as the electrical arc furnacespumps, welding machines, rolling mills andothers are known as flicker generators.…”

Section: Introductionmentioning

confidence: 99%

Compensation of Voltage Flicker by Using Facts Devices

Bharothu¹

2013

EPES

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Abstract:Voltage flicker occurs when heavy loads are periodically turned on and off in a weak distribution system. If the distribution system's short circuit capacity is not large enough, voltage fluctuations will occur. Voltage flickering can be extremely harmful to sensitive electronic equipment. Computerized equipment requires stable voltage to perform properly. This paper covers the contrasting approaches; dealing with the voltage flicker mitigation in three stages and assessing the related results in details. Initially, the voltage flicker mitigation, using FCTCR (Fixed Capacitor Thyristor Controlled Reactor), was simulated. Secondly, the compensation for the Static Synchronous Compensator (STATCOM) has been performed. In this case, injection of harmonics into the system caused some problems which were later overcome by using 12-pulse assignment of SATCOM and RLC filters. The obtained results show that STATCOM is very efficient and effective for the flicker compensation. All the simulations have been performed on the MATLAB Software.

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Identification and modelling of a three phase arc furnace for voltage disturbance simulation

Cited by 109 publications

References 4 publications

Power Quality Issues of Electric Arc Furnace and their Mitigations -A Review

Power Quality Issues of Electric Arc Furnace and their Mitigations -A Review

Mathematical Modeling and Experimental Validation of an Electric Arc Furnace

Compensation of Voltage Flicker by Using Facts Devices

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