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Large Capacity High Efficiency 3-Level GCT Inverter System
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| Author(s) |
M. Koyama; Y. Shimomura; H. Yamaguchi; M. Mukunoki; H. Okayama; S. Mizoguchi |
| Abstract |
The number of large capacity voltage source inverters using GTO thyristors applied to steel rolling
mill drives is increasing due to their advantages such as high power factor and high output frequency.
Further improvement in power conversion efficiency is desired for these voltage source inverters. This
paper presents a new large capacity (12MVA) high efficiency three-level inverter using GCT thyristor
with world’s largest capacity of 6kV/6kA. In this paper, we describe several key techniques such as
high performance GCT gate drive circuit and snubber-less main circuit developed to realize this new
GCT inverter. Some experimental results are shown to demonstrate that the developed GCT inverter
has enough robustness and reliability to be applied for the steel main rolling mill drives. |
| Download |
| Filename: | EPE2001 - PP00594 - Koyama.pdf |
| Filesize: | 231.1 KB |
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| Type |
Members Only |
| Date |
Last modified 2004-03-11 by System |
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