电器与能效管理技术Issue(11)：23-27,34,6.DOI:10.16628/j.cnki.2095-8188.2023.11.004
二极管箝位型三电平变换器关断尖峰电压吸收电路分析
Analysis on Methods for Suppressing Turn off Peak Voltage of Diode Clamped Three level Converter
尚扬 1王永生 1魏超 1黄海宏2
作者信息
- 1. 国网安徽省电力公司六安供电公司,安徽 六安 237000
- 2. 合肥工业大学电气与自动化工程学院,安徽合肥 230009
- 折叠
摘要
Abstract
The causes of the turn off peak voltage of power devices in diode clamped three-level converters is analyzed.The various methods of suppressing the turn off peak voltage in engineering is discussed.Then,the matters needing attention in the use of commonly used peak voltage absorbing circuits is emphatically analyzed.The analysis results show that when the traditional RCD voltage peak absorption circuit is applied to three-level circuits,there is a problem of generated instantaneous short circuit currents if the dead time is insufficient during state transition,which poses a threat to the power circuit.Therefore,it is more appropriate to use a simplified RC absorption circuit.Finally,the above analysis is verified by simulation.关键词
三电平变换器/关断尖峰电压/分布电感/RC缓冲电路Key words
three-level converter/turn off peak voltage/distributed inductance/RC buffer circuit分类
信息技术与安全科学引用本文复制引用
尚扬,王永生,魏超,黄海宏..二极管箝位型三电平变换器关断尖峰电压吸收电路分析[J].电器与能效管理技术,2023,(11):23-27,34,6.
