Mixed cells modular multilevel converter

Author

Adam, Grain Philip ; Ahmed, K.H. ; Williams, Barry W.

Author_Institution

Univ. of Strathclyde, Glasgow, UK

fYear

2014

fDate

1-4 June 2014

Firstpage

1390

Lastpage

1395

Abstract

This paper uses a scaled down version of the mixed cells modular multilevel converter (MMC) to discuss its modulation and capacitor voltage balancing method, and investigates its AC and DC fault ride-through capability. It has been found that the mixed MMC is resilient to both AC and DC network faults, which are necessary for next generations of highly meshed multi-terminal HVDC grids. The power losses comparison conducted in this paper has shown that the mixed cells MMC and three-level cells MMC achieve DC fault reverse blocking capability at reduced on-state losses than full-bridge MMC and alternative arm MMC.

Keywords

HVDC power convertors; HVDC power transmission; DC fault reverse blocking capability; high-voltage DC transmission system; highly meshed multiterminal HVDC grid; hybrid cascaded multilevel converter; mixed cells modular multilevel converter; modulation and capacitor voltage balancing method; power losses; Capacitors; Circuit faults; Converters; HVDC transmission; Insulated gate bipolar transistors; Modulation; Topology; DC fault reverse blocking capability; high-voltage DC transmission systems; hybrid cascaded multilevel converter; modular multilevel converter;

fLanguage

English

Publisher

ieee

Conference_Titel

Industrial Electronics (ISIE), 2014 IEEE 23rd International Symposium on

Conference_Location

Istanbul

Type

conf

DOI

10.1109/ISIE.2014.6864817

Filename

6864817