二极管和晶闸管关断缓冲器的KREAN仿真和易于使用的设计算法

Conference Record of the 1988 IEEE Industry Applications Society Annual Meeting Pub Date : 1988-10-02 DOI:10.1109/IAS.1988.25131

T. Undeland, A. Petterteig, G. Hauknes, A. K. Adnanes, S. Garberg

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引用次数: 13

摘要

RC缓冲器必须用于限制二极管或晶闸管反向恢复瞬态的过电压。这适用于从线频转换到开关模式直流电源输出整流器的应用范围。通过模拟和计算，深入了解了关断波形的机理，并给出了过电压和损耗之间的权衡。给出了一个易于使用的曲线图，用于选择缓冲元件。正在开发的专门用于电力电子电路分析的计算机程序KREAN用于模拟，并对其进行了简要描述。

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Diode and thyristor turn-off snubbers simulation by KREAN and an easy to use design algorithm

RC snubbers must be used for limiting the overvoltages at the diode or thyristor reverse recovery transients. This is true for the application range from line frequency conversion to the output rectifiers in switched-mode DC power supplies. An insight into the mechanism of the turn-off waveforms is obtained by simulations and calculations, and the tradeoffs between overvoltages and losses are presented. An easy-to-use nomogram for the selection of the snubber components is given. A computer program dedicated for power electronic circuit analysis under development, KREAN, is used for the simulations, and is briefly described.<>

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Conference Record of the 1988 IEEE Industry Applications Society Annual Meeting

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