Abstract |
Up to present, GTO thyristors have been used in traction applications and industrial drive systems, but as a result of progress in characteristics, the GTO application field is now expanding to more powerful equipment. For the time being however, the voltage rating of existing GTO thyristors is restrictive, i.e. 4.5 KV compared to required voltages of 9 - 12 KV in high power applications. In order to solve this problem, the GTO characteristic parameters for series connection are analysed. This paper describes the analysis and investigation results and discusses series connection technology devoted to high voltage applications. |