Sizing and energy efficiency analysis of a multi-phase FSCW PMSM drive for traction application
Paper in proceeding, 2020

This paper investigates the properties of multi-phase drive systems for electric propulsion systems in terms sizing and drive cycle performance.A multi-phase solution offers improved system safety due to redundancy. A 12 slot 10 poles fractional slot winding machine is chosen due to its promising characteristics in terms of short end-windings and ease for mass production utilizing pre-wound coils. The same machine can be reconfigured to be utilized both in 3-phase, using a single inverter, and in 6-phase mode using two 3-phase inverters. IGBT and SiC based inverter topologies are investigated for both 3-phase and 6-phase systems. In the multiphase mode the capacitor bank current rating can be reduced by 43.5% if PWM carrier shift is exploited.Multiple drive cycle studies are performed. For the 6-phase system a total reduction of electric machine losses of up to 4.6% and up to 3.8% inverter losses are reported.


DC link design





Artem Rodionov

Chalmers, Electrical Engineering, Electric Power Engineering

Alessandro Acquaviva

Chalmers, Electrical Engineering, Electric Power Engineering

Yujing Liu

Chalmers, Electrical Engineering, Electric Power Engineering

IECON Proceedings (Industrial Electronics Conference)

Vol. 2020-October 2069-2074 9254544
9781728154145 (ISBN)

46th Annual Conference of the IEEE Industrial Electronics Society, IECON 2020
Online, Singapore,

Subject Categories

Energy Engineering

Embedded Systems

Other Electrical Engineering, Electronic Engineering, Information Engineering



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6/3/2021 1