Non-conventional application of AC drives - Use of AC drives in emergency systems. Case study: tilting system of torpedo car in CST BOF shop

Author

Zanandrea, P.H. ; Goncalves, A.C.V. ; Ardisson, E.V. ; Dias, E.V. ; Campos, J.F. ; Gomes, E.D.

Author_Institution

CST Arcelor Brasil

fYear

2006

fDate

23-26 May 2006

Firstpage

292

Lastpage

297

Abstract

Nowadays, variable speed drives (VSD´s) are very often used in many industrial systems, but almost always in traditional applications. This paper describes the successful application of VSD´s in the CST-Arcelor Brasil torpedo car tilting system in the basic oxygen furnace BOF (steelmaking plant), in normal operation condition and also in emergency system condition during blackouts. The electrical system uses a 440 V_AC three-phase induction motor. During a blackout, the VSD is fed by DC accumulators battery bank (456 V_DC) in order to put the system in a safety position. The paper presented the new topology for this system, describing the techniques employed, the benefits and the latest results

Keywords

emergency power supply; furnaces; induction motor drives; steel industry; variable speed drives; AC drives; Arcelor Brasil torpedo car tilting system; DC accumulators; battery bank; steelmaking plant; three-phase induction motor; torpedo car; variable speed drives; AC motors; Boilers; Cleaning; Computer aided software engineering; DC motors; Induction motors; Plugs; Slag; Sockets; Surfaces;

fLanguage

English

Publisher

ieee

Conference_Titel

Power Electronics, Electrical Drives, Automation and Motion, 2006. SPEEDAM 2006. International Symposium on

Conference_Location

Taormina

Print_ISBN

1-4244-0193-3

Type

conf

DOI

10.1109/SPEEDAM.2006.1649787

Filename

1649787