Application of Static Var Compensator of Ultra-High Power Electric Arc Furnace for Voltage Drops Compensation in Factory Power Supply System of Metallurgical Enterprise

2014 ◽  
Author(s):  
A.A. Nikolaev ◽  
G.P. Kornilov ◽  
T.R. Khramshin ◽  
I. Akcay ◽  
Y. Gok
Keyword(s):  
High Power ◽  
Power Supply ◽  
Power Supply System ◽  
Electric Arc Furnace ◽  
Electric Arc ◽  
Supply System ◽  
Arc Furnace ◽  
Static Var Compensator ◽  
Metallurgical Enterprise ◽  
Voltage Drops

Hardware Design for Simulating the Chaos in Electric Arc Furnace

2013 ◽  
Vol 860-863 ◽  
pp. 2360-2364
Author(s):  
Yu Fei Wang ◽  
Jian Yun Zhang ◽  
Hua Xue
Keyword(s):  
Power Supply ◽  
Power Supply System ◽  
Negative Resistance ◽  
Electric Arc Furnace ◽  
Electric Arc ◽  
Arc Furnace ◽  
Negative Power ◽  
Chaotic Model ◽  
Study Power ◽  
Ac Arc

A chaotic circuit was designed to simulate the chaotic phenomenon observed in power supply system of electric arc furnace (EAF). Based on volt-ampere characteristic of the negative resistance converter (NRC) composed of the integrated operational amplifier (IOA), two NRCs with different parameters are connected in parallel in this circuit. The positive and negative power supply sources of the IOA are unequal in voltage amplitude. Experimental results show that the circuit has characteristics of general Chuas circuits and can generate an asymmetric double-scroll chaotic attractor, which helps establish the foundation for chaotic model of AC arc furnace used to study power quality.

scholarly journals SERIES COMPENSATION OF REACTIVE POWER IN A LOW-VOLTAGE CIRCUIT OF THE ELECTRIC ARC FURNACE

2018 ◽  
Vol 45 (2) ◽  
pp. 42-51 ◽  
Author(s):  
N. P. Badalyan ◽  
G. P. Kolesnik ◽  
S. G. Solovyova ◽  
Ye. A. Chaschin
Keyword(s):  
Power Supply ◽  
Power Supply System ◽  
Reactive Power ◽  
Low Voltage ◽  
Electric Arc ◽  
Supply System ◽  
Arc Furnace ◽  
Compensation Circuit ◽  
Series Compensation ◽  
Linear Load

ObjectivesThe aim of the study is to increase the energy efficiency of an arc furnace’s power supply system and low-voltage circuit. According to the aim of the research, the relevant tasks of determining the capacitor capacity for reactive power compensation and selecting a rational location for its installation are posed.MethodsWithin the framework of the previously developed concept of changing the parameters of the switching transformer in the series compensation circuit, issues of efficient use and consumption of electrical energy by a high power linear load under sinusoidal mode are considered. The installation of static compensators using a direct compensation method with automatic control including 12 stages of regulation is proposed as a means of increasing the efficiency of the arc furnace. Challenges involved in increasing the efficiency of electric power supply to alternating current arc furnaces using compensating reactive power in a low-voltage circuit are considered.ResultsThe viability of using the series compensation circuit of reactive power with the switching of capacitors in the winding of the higher voltage of the series switching transformer is demonstrated.ConclusionIt is shown that for efficient use and consumption of electric energy by highpower linear load under sinusoidal conditions, it is advisable to apply the series compensation of reactive power with the switching of capacitors in the winding of the higher voltage of the series switching transformer. This makes it possible to increase the efficiency coefficient of electric arc furnace power supply devices by reducing the power losses in the power supply system and in the furnace lowvoltage circuit by 1.6 times, as well as reducing the total load in the power transformer by 1.36 times.

scholarly journals Harmonic Reduction Analysis for Electric Arc Furnace using Passive Filters and DSTATCOM

2019 ◽  
Vol 8 (6) ◽  
pp. 1620-1626
Keyword(s):  
Power Supply ◽  
Pulse Width Modulation ◽  
Sliding Mode ◽  
Electric Arc Furnace ◽  
Electric Arc ◽  
Supply System ◽  
Arc Furnace ◽  
Production Lines ◽  
Precise Control ◽  
Wide Range

The Industrial furnaces are used globally for wide range of applications from lab scale to complete production lines. They provide continuous high temperatures of 300°C to 3000°C with precise control of temperature and material flow to ensure consistent and uniform output. The furnace operators that deliver at higher efficiencies are prone to power supply system challenges with greater potential for power quality implications on supply system. Hence such operators of high intensity power furnaces should consider design and development of appropriate mitigation techniques to upgrade the power supply quality. In this paper the mitigation of harmonics in Electric Arc Furnace is dealt with suitable passive filter and DSTATCOM techniques. Also, the performance analysis of Electric Arc Furnace has been carried out with MATLAB/SIMULINK based model using Sinusoidal pulse width modulation, hysteresis and the sliding mode controllers.

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