High-speed output short-circuit protection method for multilevel PWM AC/DC converter

被引：3
|
作者：
Nho, EC [1 ]
机构：
[1] Pukyong Natl Univ, Dept Elect Engn, Nam Gu, Pusan 608739, South Korea
来源：
ELECTRONICS LETTERS | 2001年 / 37卷 / 04期
关键词：
Capacitors - Current voltage characteristics - Electric loads - Electric potential - Electric power supplies to apparatus - Electric switches - Insulated gate bipolar transistors - Overvoltage protection - Pulse width modulation - Short circuit currents - Thyristors;
D O I：
10.1049/el:20010155
中图分类号：
TM [电工技术]; TN [电子技术、通信技术];
学科分类号：
0808 ; 0809 ;
摘要：
A new method that protects against a load short-circuit in a multilevel PWM AC/DC converter is described. The output DC voltage of the proposed scheme can he quickly disconnected from the short-circuit load. In addition, the DC voltage is applied to the load immediately after the fault has been cleared without causing any voltage overshoot. The proposed scheme has the advantages of a simple structure, low cost and low volume. Experimental results are presented to verify the usefulness of the proposed scheme.
引用
收藏
页码：205 / 206
页数：2
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