NDLI: Large capacity high performance 3-level GTO inverter system for steel main rolling mill drives

Content Provider	IEEE Xplore Digital Library
Author	Okayama, H. Uchida, R. Koyama, M. Mizoguchi, S. Tamai, S. Ogawa, H. Fujii, T. Shimomura, Y.
Copyright Year	1996
Description	Author affiliation: Ind. Electron. & Syst. Lab., Mitsubishi Electr. Corp., Hyogo, Japan (Okayama, H.)
Abstract	This paper proposes a high performance 10 MVA 3-level GTO inverter system for steel main rolling mill drives, which consists of a three-level power converter, a three-level inverter and two series-connected DC-link capacitors with a neutral point. To realize this system, newly developed 6-inch 6 kV-6 kA GTOs have been applied first in the world. A novel regenerative snubber circuit topology is proposed to maximize power conversion efficiency of the system and to guarantee maximum turn-off current capability of 6 kA of GTOs implemented in the main circuit. By applying high power factor control of the power converter and high performance vector control of a synchronous motor, a high performance GTO inverter system has been realized. Experimental results using a 6000 kW synchronous motor demonstrate the availability of this inverter system for steel main rolling mill drives.
Starting Page	174
Ending Page	179
File Size	618512
Page Count	6
File Format	PDF
ISBN	0780335449
ISSN	01972618
DOI	10.1109/IAS.1996.557012
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	1996-10-06
Publisher Place	USA
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Circuit topology Reactive power Capacitors Snubbers Synchronous motors Control systems Inverters Steel Power conversion Milling machines
Content Type	Text
Resource Type	Article
Subject	Industrial and Manufacturing Engineering Control and Systems Engineering Electrical and Electronic Engineering

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