A comparative study of AC/DC converters for high-power DC arc furnace

被引：47
|
作者：
Ladoux, P
Postiglione, G
Foch, H
Nuns, J
机构：
[1] ENSEEIHT, CNRS, UMR, INPT,Lab Electrotech & Elect Ind, F-31071 Toulouse, France
[2] Direct Etudes & Rech Site Renardieres Elect Franc, F-77818 Moret Sur Loing, France
来源：
IEEE TRANSACTIONS ON INDUSTRIAL ELECTRONICS | 2005年 / 52卷 / 03期
关键词：
DC are furnace; dc power supply; industrial applications; power quality; reduction of flicker effect; simulation;
D O I：
10.1109/TIE.2005.843941
中图分类号：
TP [自动化技术、计算机技术];
学科分类号：
0812 ;
摘要：
Today, dc are furnaces are supplied by thyristor rectifiers. Because of the phase control strategy on the rectifiers, the arc voltage swings induce large reactive power variations on the power network and a static var compensator (SVC) or a static synchronous compensator (STATCOM) is always added to avoid flicker effect. In this paper, the authors present a new control strategy which suppress the flicker effect and increases the furnace productivity. To supply the dc arc furnace, the ac/dc converter is based on diode rectifiers and choppers with a constant power control strategy. Consequently, the ac/dc converter can operate without a STATCOM or an SVC. To evaluate the gain in flicker and furnace productivity, simulations are done with Matlab software. These simulations take into account arc voltage measurements on a 100-MW dc arc furnace and allow for comparison of the different solutions.
引用
收藏
页码：747 / 757
页数：11
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