An Improved Time Domain Arc Furnace Model for Harmonic Analysis

Alonso, M.A.P.; Donsión, Manuel Pérez

doi:10.1109/tpwrd.2003.820189

Cited by 72 publications

(37 citation statements)

References 4 publications

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“…Therefore, the selected ARMA, which has been calculated by one cycle window, is based on the actual measurement of the voltage and current of EAFs that can predict the reactive power of EAFs. Then the RLS-DLF can update the different coefficients of the obtained ARMA (2,1). Without the experimental results, calculating the ARMA model for EAF reactive power is impossible or very difficult.…”

Section: Resultsmentioning

confidence: 99%

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Electric arc furnace power quality improvement by applying a new digital and predicted-based TSC control

Esfahani¹,

Vahidi

2016

Turk J Elec Eng & Comp Sci

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Static VAR compensators (SVC) can improve some of the power quality (PQ) indices such as voltage flicker, unbalances, and power factors in power systems if properly controlled. Different nonlinear and time-varying loads generate these parameters. One of the great nonlinear loads is the electric arc furnace (EAF), which causes waveform distortions, voltage unbalances, and fluctuations. In this paper, a new digital and prediction-based control for thyristor switched capacitors (TSCs) was proposed to compensate an actual steel industrial plant. The digital control was based on generating adequate synchronous pulses, calculating required suitable susceptance, and measuring correct reactive power. The proposed TSC improved the PQ by means of the feedback from voltage and power factor. A predictive method based on time series and recursive least square with dynamic learning factor was then applied to estimate EAF reactive power in the future so that the TSC performance was enhanced by reducing the natural time delay. A band-pass harmonic filter was designed to compensate the load current harmonics and to protect the capacitor banks in the TSC.Finally, the suggested TSC was implemented in a steel industrial plant as an actual power system with 2 EAFs. The modeling and experimental results indicate the effectiveness of the proposed TSC.

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Section: Resultsmentioning

confidence: 99%

“…The voltage-source models based on voltage-current (V-I) characteristics were presented in [1], where voltage is usually considered as current equations related to V-I characteristics. In this model, a relation is required to modulate voltage for flicker generation.…”

Section: Introductionmentioning

confidence: 99%

Electric arc furnace power quality improvement by applying a new digital and predicted-based TSC control

Esfahani¹,

Vahidi

2016

Turk J Elec Eng & Comp Sci

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“…In the increasing current case, the Figure 8. The characterization of flicker produced by an arc furnace is an extremely difficult operation (Alonso & Donsion, 2004); (Beites et. al., 2001); (Webster, 2004).…”

Section: Numerical Simulations For Energy Calculation In Power Measurmentioning

confidence: 99%

Power Quality and Electrical Arc Furnaces

Andrei¹,

Cepișcă²,

Grigorescu³

2011

Power Quality

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“…The influence of the main harmonic load flow hypothesis (harmonic interaction and fundamental power consumption consideration) in the final load flow results is also studied. In Reference [79], an arc model for three-phase arc furnace to carry out the harmonic analysis with a single-phase circuit is given. The model is based on the V-I characteristic of the arc and takes into account the effect of the arcs unbalance over the zero sequence harmonics.…”

Section: Harmonic Analysismentioning

confidence: 99%

Power system harmonics research: a survey

Singh

2007

Int Trans Elec Energy Syst

155

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SUMMARYThe increased use of power electronic controlled equipment, such as variable speed drives, automated production lines, personal computers and non-linear electronic devices in power systems has given rise to a type of voltage and current waveform distortion called as 'harmonics'. Harmonic can be defined as the undesirable components of a distorted periodic waveform whose frequencies are the integer multiples (non-integer multiples in case of inter-harmonics, and the frequency less than fundamental frequency in case of sub-harmonics) of the fundamental frequency. Presence of these harmonics results in increased losses, equipment heating and loss-of-life, and interference with protection, control and communication circuits as well as customer loads. The research has been underway since very beginning for control of power system harmonics and to supply consumers with reliable and 'clean' fundamental-frequency sinusoidal electric power that does not represent a damaging threat to their equipment. This paper, therefore, reviews the progress made in power system harmonics research and development since its inception. Attempts are also made to highlight the current and future issues involved in the development of quality and reliable electric power technology for future applications. A list of 145 research publications on the subject is also appended for a quick reference.

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An Improved Time Domain Arc Furnace Model for Harmonic Analysis

Cited by 72 publications

References 4 publications

Electric arc furnace power quality improvement by applying a new digital and predicted-based TSC control

Electric arc furnace power quality improvement by applying a new digital and predicted-based TSC control

Power Quality and Electrical Arc Furnaces

Power system harmonics research: a survey

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