Analysis of MMF and back-EMF waveforms for fractional-slot concentrated-wound permanent magnet machines
- 1 September 2014
- conference paper
- Published by Institute of Electrical and Electronics Engineers (IEEE)
- Vol. 48, 1976-1982
Abstract
An analytical modelling technique to calculate the generated magneto-motive force (MMF) and back-EMF of fractional slot concentrated wound (FSCW) permanent magnet synchronous machines (PMSMs) is reported. The generated MMF of a FSCW stator is analyzed and modelled using a Fourier series technique. General expressions of the harmonic winding factors for FCSW stators with different slot-pole combinations are then obtained. A general expression for the generated back-EMF of FSCW PMSMs is then derived. The obtained analytical results are validated through finite-element analysis (FEA) and experimental tests on a prototype FSCW PMSM. A comparison between the generated voltages of various FSCW stator topologies is also performed.Keywords
This publication has 19 references indexed in Scilit:
- Analytical 2-D Calculations of Torque, Inductance, and Back-EMF for Brushless Slotless Machines With Surface Inset MagnetsIEEE Transactions on Magnetics, 2013
- Effects of MMF Harmonics on Rotor Eddy-Current Losses for Inner-Rotor Fractional Slot Axial Flux Permanent Magnet Synchronous MachinesIEEE Transactions on Magnetics, 2012
- A new analytical model of IPM motor based on magnetic reluctance matrix2010
- Design of a highly efficient 1kW concentric wound IPM machine with a very wide constant power speed range2010
- Stator Slotting Effect on the Magnetic Field Distribution of Salient Pole Synchronous Permanent-Magnet MachinesIEEE Transactions on Magnetics, 2010
- Optimal Flux Weakening in Surface PM Machines Using Fractional-Slot Concentrated WindingsIEEE Transactions on Industry Applications, 2005
- Synthesis of high performance PM motors with concentrated windingsIEEE Transactions on Energy Conversion, 2002
- Back-EMF waveforms and core losses in brushless DC motorsIEE Proceedings - Electric Power Applications, 1994
- Instantaneous magnetic field distribution in brushless permanent magnet DC motors. III. Effect of stator slottingIEEE Transactions on Magnetics, 1993
- Instantaneous magnetic field distribution in permanent magnet brushless DC motors. IV. Magnetic field on loadIEEE Transactions on Magnetics, 1993