A novel modular multilevel converter modelling technique based on semi-analytical models for HVDC application

• Main Authors: Ahmed Zama, Seddik Bacha, Abdelkrim Benchaib, David Frey, Sebastien Silvant
• Format: Article
• Language: English
• Published: ESRGroups 2016-12-01
• Series: Journal of Electrical Systems
• Subjects: HVDC transmission; modular multilevel converter (MMC); full order model; reduced order model
• Online Access: http://journal.esrgroups.org/jes/papers/12_4_2.pdf

Thanks to scalability, performance and efficiency, the Modular Multilevel Converter (MMC), since its invention, becomes an attractive topology in industrial applications such as high voltage direct current (HVDC) transmission system. However, modelling challenges related to the high number of switching elements in the MMC are highlighted when such systems are integrated into large simulated networks for stability or protection algorithms testing. In this work, a novel dynamic models for MMC is proposed. The proposed models are intended to simplify modeling challenges related to the high number of switching elements in the MMC. The models can be easily used to simulate the converter for stability analysis or protection algorithms for HVDC grids.