期刊
IET POWER ELECTRONICS
卷 13, 期 19, 页码 4551-4561出版社
WILEY
DOI: 10.1049/iet-pel.2020.0696
关键词
zero current switching; fault tolerance; HVDC power convertors; commutation; renewable energy sources; DC-DC power convertors; switching convertors; power grids; HVDC power transmission; zero current switching; inherent fault-tolerant capability; main LCC HVDC system; fault scenarios; circuit topology; DC fault ride-through; remote renewable energy sources; fault-tolerant scheme; DC-DC converter; high-voltage gain; resonant circuits
The integration of remote renewable energy sources located near the long-distance HVDC transmission corridor to the HVDC system is an active area of research. This study presents a new fault-tolerant scheme using a modular soft-switched DC-DC converter with high-voltage gain to integrate renewable energy sources to LCC-based HVDC systems. The configuration, operating principle and mathematical modelling of the new DC-DC converter are described in this study. As both the charging and discharging processes takes place through resonant circuits, zero current switching of all the switches used in the converter is achieved. The proposed scheme has the inherent fault-tolerant capability and enables fast recovery from commutation failures in the main LCC HVDC system. The operation of the proposed scheme during various fault scenarios is analysed and explained in this study. The performance of the proposed scheme and its fault ride though the capability is verified using a simulation model built in PSCAD/EMTDC and an experimental prototype.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据