Investigations of voltage flicker in electric arc furnace power systems

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

doi:10.1109/ias.1994.377755

Cited by 14 publications

(5 citation statements)

References 3 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…These fluctuations can be generated from heavy loads like welding machines, motors, and arc furnaces. [10][11][12] As well as, the wind farms and the solar photovoltaic system can also be considered as another voltage flicker source (FS). [13][14][15] According to IEC 61 000-4-15, 16 the human eyes can observe the voltage fluctuations more than a particular magnitude (up to ±10%) for certain frequencies ranged from 0.5 to 35 Hz as an annoying unsteadiness of the light intensity.…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

A new method with minimum number of monitoring points for flicker source tracing by wavelet transform

Banaem

Abbasi

Tousi

2019

Int Trans Electr Energ Syst

View full text Add to dashboard Cite

Summary Recently, both utilities and consumers have paid great attention to voltage fluctuation (flicker) problem, which is defined as low‐frequency fluctuation on the base signal of voltage. For mitigating the flicker, identification of its source is the first step. In this paper, a new method is proposed for identifying the location of flicker sources in a multi‐flicker sources power network in a more reliable and precise manner by a minimum number of monitoring points. This method is based on the wavelet transform (WT), the approximate model of the line and flicker power theory. In addition, in this method, a new factor is proposed for determining the contributions of individual consumers and utility providers in the global flicker level of a common coupling bus‐bar. For validating the performance of the proposed method, comprehensive simulations have been performed in MATLAB environment on a single‐ and multi‐flicker sources system based on IEEE 34 node test feeder. As proved by the results, the proposed method is able to identify the contributions and locations of flicker sources with higher reliability and accuracy compared with other methods.

show abstract

Section: Introductionmentioning

confidence: 99%

“…In general, voltage flicker is a periodical or fortuitous deviations of the voltage waveform. These fluctuations can be generated from heavy loads like welding machines, motors, and arc furnaces . As well as, the wind farms and the solar photovoltaic system can also be considered as another voltage flicker source (FS) .…”

Section: Introductionmentioning

confidence: 99%

A new method with minimum number of monitoring points for flicker source tracing by wavelet transform

Banaem

Abbasi

Tousi

2019

Int Trans Electr Energ Syst

View full text Add to dashboard Cite

show abstract

“…Voltage flicker is the result of low‐frequency voltage envelope fluctuations and has received much attention due to numerous customer complaints 7,8 . Heavy loads such as furnaces, welding machines, rolling mills and motors are the main sources of voltage flicker 9‐15 . Moreover, solar photovoltaic systems and wind farms are other examples of voltage flicker sources 16‐20 .…”

Section: Introductionmentioning

confidence: 99%

A new approach for the simultaneous identification of the location and individual contribution of multiple flicker sources using the least number of monitoring points

Banaem

Tousi

2020

Int Trans Electr Energ Syst

View full text Add to dashboard Cite

SUMMARY In recent years, rising non‐linear loads and distributed generation sources have made voltage fluctuation one of the main quality problems in power systems. To deal with this problem, new methods should be developed that can identify all flicker sources and calculate the exact contribution of each flicker source from the total voltage flicker of the network. A method with fewer measurement points is more desirable because of the less monitoring time required and cost. In this article, a new method based on wavelet transform is proposed, which can not only detect the exact location of the flicker sources but also precisely determine the contribution of each flicker source from the overall flicker value and the voltage and current flicker signals of these sources. In contrast to the previously proposed methods, which can provide only one of the mentioned pieces of information, that is, the flicker source location, the proposed method can simultaneously calculate all three of them with fewer monitoring points. The proposed method was completely simulated in MATLAB/Simulink on single‐ and multi‐flicker source systems based on an IEEE 34‐node test feeder to evaluate the method's performance.

show abstract

“…A load causing flicker is often connected to the power network at medium-or high voltage level resulting in flicker propagation throughout a wide area of the network affecting a large number of customers. Typical examples of such loads are arc furnaces, welding machines but also wind turbines [1][2][3][4][5][6]. It is of mutual interest for both the network operator and the customers to have a complete picture of the dominating flicker sources.…”

Section: Introductionmentioning

confidence: 99%

A measurement method for determining the direction of propagation of flicker and for tracing a flicker source

Axelberg¹,

Bollen²,

Gu³

2005

18th International Conference and Exhibition on Electricity Distribution (CIRED 2005)

View full text Add to dashboard Cite

Investigations of voltage flicker in electric arc furnace power systems

Cited by 14 publications

References 3 publications

A new method with minimum number of monitoring points for flicker source tracing by wavelet transform

A new method with minimum number of monitoring points for flicker source tracing by wavelet transform

A new approach for the simultaneous identification of the location and individual contribution of multiple flicker sources using the least number of monitoring points

A measurement method for determining the direction of propagation of flicker and for tracing a flicker source

Contact Info

Product

Resources

About