Direct-on-line-start permanent-magnet-assisted synchronous reluctance machine with ferrite magnets
Paper in proceedings, 2017

The possibility of applying low-cost ferrite magnets in a direct-on-line-start permanent-magnet-assisted synchronous reluctance machine (DOL PMaSynRM) for industrial applications, such as pump or ventilation systems was studied. The main target of this machine topology was to achieve a higher efficiency class compared to a counterpart induction machine (IM). Because of the weak properties of the ferrite magnets the motor had to be optimized for a low magnetic stress starting from the permanent magnets' point of view. The optimization procedure includes finding of a suitable rotor construction with a proper number of barriers, thickness of the barriers and thickness of the ferrite magnets. More detailed attention was dedicated to the analysis and elimination of irreversible demagnetization risk of ferrite magnets during start up period.


Ilya Petrov

Chalmers, Energy and Environment, Electric Power Engineering

Lappeenranta University of Technology (LUT)

Yujing Liu

Electrical Machines and Power Electronics

Valerii Abramenko

Lappeenranta University of Technology (LUT)

Pia Lindh

Lappeenranta University of Technology (LUT)

Juha Pyrhönen

Lappeenranta University of Technology (LUT)

Industrial Electronics Society , 43rd Annual Conference of the IEEE

Industrial Electronics Society , IECON 2017 - 43rd Annual Conference of the IEEE
Beijing, ,

Driving Forces

Sustainable development

Areas of Advance




Materials Science

Subject Categories

Electrical Engineering, Electronic Engineering, Information Engineering

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