Investigations of voltage flicker in electric arc furnace power systems

Mendis, S.R.; Bishop, M.T.; Witte, J.F.

doi:10.1109/2943.476595

Cited by 51 publications

(8 citation statements)

References 3 publications

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“…1(b). Typically, the EAF's major processes are melting and refining [4]. During these two processes, the EAF's electrodes are short-circuited to scrap metal and consume time-varying power, which is mainly dependent on arc lengths.…”

Section: System Descriptionmentioning

confidence: 99%

Design of an Ultra-Capacitor Energy Storage System (UESS) for Power Quality Improvement of Electric Arc Furnaces

Han¹,

Huang

Bhattacharya

et al. 2008

2008 IEEE Industry Applications Society Annual Meeting

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Electrical arc furnace (EAF), acting as a fast varying real power and reactive power sink, not only induces the power quality pollution back to utility, but also prevent the effective production of metal industry. In this paper, a methodology of designing an energy storage system (ESS) for EAFs is presented. Based on the field data-based study of a typical EAF, the power, energy, and speed requirement of ESS are quantitatively evaluated. Based on the requirement, an ultra-capacitor energy storage system (UESS) is deemed as the suitable type of ESS for the EAF application. The design of UESS is described, and the preliminary experimental results are given.

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Section: System Descriptionmentioning

confidence: 99%

Design of an Ultra-Capacitor Energy Storage System (UESS) for Power Quality Improvement of Electric Arc Furnaces

Han¹,

Huang

Bhattacharya

et al. 2008

2008 IEEE Industry Applications Society Annual Meeting

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show abstract

“…1(b). Typically, the two EAF major processes are melting and refining [1]. During these two processes, the EAF's electrode is short-circuited to scrap metal and consumes the time-varying power, which is mainly dependent on arc length.…”

Section: Eaf System and Field Data Analysismentioning

confidence: 99%

“…As one of the most common power quality issues, flicker, due to feeder voltage fluctuation, influences domestic lighting and sensitive apparatus of nearby transmission and distribution system. Electrical arc furnace (EAF), as a major industry customer of utility, consumes considerable real power and reactive power with the time-varying, stochastic and even chaotic characteristics during its melting and refining process, and therefore generates severe flicker to the grid [1].…”

Section: Introductionmentioning

confidence: 99%

Field Data-based Study on Electric Arc Furnace Flicker Mitigation

Han

Huang

Bhattacharya

et al. 2006

Conference Record of the 2006 IEEE Industry Applications Conference Forty-First IAS Annual Meeting

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As an industry customer of utility, electrical arc furnace (EAF), acting as a varying and reactive power sink, is the major flicker source to influence the grid power quality. In this paper, based on the field data recorded at the electric system surrounding EAF, the flicker issues and reactive power compensation requirement are quantitatively analyzed. The possible compensation solutions, including passive filter, SVC (static var compensator), STATCOM (static synchronous compensator) are discussed. Furthermore, a field data-based EAF model is proposed and implemented in the simulation software. The fast-bandwidth STATCOM solution with or without capacitor bank are designed and implemented. With the validated EAF and STATCOM model, the extensive simulations are conducted to study compensator performance and costeffectiveness for EAF flicker mitigation. Finally, the guideline for compensator selection and performance estimation is obtained.

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“…The indexes of voltage fluctuations, the amplitude and frequency of voltage fluctuations, are the measure of changes in the voltage rms value [4]- [7]. Up to a certain boundary value of frequency, the amplitude and frequency of fluctuations describe directly the amplitude and frequency of the voltage envelope.…”

Section: Measures Of Voltage and Currentmentioning

confidence: 99%

Search for disturbing loads in power network with the use of voltage and current fluctuation

Otomański

Wiczyński

2010

2010 International School on Nonsinusoidal Currents and Compensation

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The paper discusses a set of the most frequently used measures of voltage fluctuation, which are useful in searching for disturbing loads. A procedure appropriate for searching the loads causing voltage fluctuation is proposed. The procedure utilizes two measures of fluctuation: P st indicator as well as minimal and maximal values of voltages and currents. An analysis is included of four exemplary measuring results, recorded in a LV network. The effect of this analysis is a conclusion whether a disturbing load appears or not. The first Example illustrates the state in which it was possible to designate a disturbing load. The other Example shows a situation in which an unequivocal conclusion is impossible. In Examples 3 and 4 it was found that the loads under investigation are not dominant sources of voltage fluctuation. By means of the hereby analysis of measurement data the authors prove the diagnostic potential of the proposed procedure for searching for disturbing loads

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Investigations of voltage flicker in electric arc furnace power systems

Cited by 51 publications

References 3 publications

Design of an Ultra-Capacitor Energy Storage System (UESS) for Power Quality Improvement of Electric Arc Furnaces

Design of an Ultra-Capacitor Energy Storage System (UESS) for Power Quality Improvement of Electric Arc Furnaces

Field Data-based Study on Electric Arc Furnace Flicker Mitigation

Search for disturbing loads in power network with the use of voltage and current fluctuation

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