Picture water droplets

Developing mathematical theories of the physical world: Open Access research on fluid dynamics from Strathclyde

Strathprints makes available Open Access scholarly outputs by Strathclyde's Department of Mathematics & Statistics, where continuum mechanics and industrial mathematics is a specialism. Such research seeks to understand fluid dynamics, among many other related areas such as liquid crystals and droplet evaporation.

The Department of Mathematics & Statistics also demonstrates expertise in population modelling & epidemiology, stochastic analysis, applied analysis and scientific computing. Access world leading mathematical and statistical Open Access research!

Explore all Strathclyde Open Access research...

MOSFET parallel-connection of low-voltage MMC for LVDC distribution networks

Zhong, Yanni and Roscoe, Nina and Holliday, Derrick and Finney, Stephen (2016) MOSFET parallel-connection of low-voltage MMC for LVDC distribution networks. In: 8th IET International Conference on Power Electronics, Machines and Drives, 2016-04-19 - 2016-04-21, The Hilton Hotel.

[img]
Preview
Text (Zhong-etal-IET-PEMD-2016-MOSFET-parallel-connection-of-low-voltage-MMC)
Zhong_etal_IET_PEMD_2016_MOSFET_parallel_connection_of_low_voltage_MMC.pdf
Accepted Author Manuscript

Download (1MB) | Preview

Abstract

A highly efficient DC-AC converter is key to the success of low-voltage DC (LVDC) distribution networks. Calculated power losses in a conventional IGBT 2-level converter, a SiC MOSFET 2-level converter, a Si MOSFET modular multilevel converter (MMC) and a GaN HEMT MMC are compared. Calculations suggest that the parallel-connected Si MOSFET MMC may be the most efficient topology for this LVDC application. In this paper, the current unbalance limits for the parallel-connected MOSFETs and the optimal number of parallel-connected MOSFETs for MMC are investigated. Experimental results are presented for current sharing in parallel-connected MOSFETs and for the verification of power loss in a single Si MMC module.