Open AccessResearch on novel hybrid multilevel inverter with cascaded H‐bridges at alternating current side for high‐voltage direct current transmission
Author(s) -
Zeng Xiangjun,
Gong Deling,
Wei Milan,
Xie Jing
Publication year - 2018
Publication title -
iet power electronics
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.637
H-Index - 77
eISSN - 1755-4543
pISSN - 1755-4535
DOI - 10.1049/iet-pel.2017.0925
Subject(s) - modular design , converters , inverter , electronic engineering , direct current , voltage , high voltage direct current , modulation (music) , electrical engineering , high voltage , power (physics) , silicon carbide , alternating current , engineering , topology (electrical circuits) , h bridge , computer science , materials science , physics , quantum mechanics , acoustics , metallurgy , operating system
A novel hybrid multilevel inverter based on a low‐frequency three‐level neutral‐point‐clamped converter and high‐frequency cascaded H‐bridge converters for high‐voltage direct current transmission is presented. This structure can make full use of traditional silicon‐based power devices and a new generation of silicon‐carbide‐based power devices to fabricate a high‐voltage voltage source inverter. The topology can reduce the volume and number of power switches as compared with a modular multilevel converter. Finally, the modulation and control strategies are presented, which are verified by a full‐scale simulation system and a small‐scale experimental platform.