1993年11月
A LARGE-CAPACITY GTO INVERTER WITH LOW-LOSS SNUBBER CIRCUITS
IEEE TRANSACTIONS ON INDUSTRY APPLICATIONS
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- 巻
- 29
- 号
- 6
- 開始ページ
- 1084
- 終了ページ
- 1089
- 記述言語
- 英語
- 掲載種別
- DOI
- 10.1109/28.259717
- 出版者・発行元
- IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
A large-capacity inverter using high-power gate turn-off (GTO) thyristors that can be used instead of a cycloconverter in ac drives is presented. With the techniques of multiple configuration and GTO series connection, the inverter capacity is increased effectively. High conversion efficiency is obtained by using low-loss snubber circuits for GTO's. It is confirmed that the low-loss snubber circuits using energy recovery units (ERU's) have good performance in PWM operation. High-energy recovery efficiency is obtained, especially in leading operation (turn-on operation when freewheeling diodes conduct). These snubber circuits have the superior ability for clamping overvoltage at GTO turn-off. The 2750-kVA inverter with low-loss snubber circuits using high-power GTO's is fabricated and evaluated.
- リンク情報
- ID情報
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- DOI : 10.1109/28.259717
- ISSN : 0093-9994
- CiNii Articles ID : 80007482903
- Web of Science ID : WOS:A1993MX05800010