Analysis of Electromagnetic Torque and Effective Winding Inductance in a Surface-Mounted PMSM During Integrated Battery Charging Operation

During integrated charging (IC) from a single phase ac utility employing permanent magnet machines, the magnetic field produced by the sinusoidal ac current passing through the stator windings: 1) affects the effective winding inductance used in the charger circuit as a function of different stator...

Full description

Saved in:
Bibliographic Details
Published in:IEEE transactions on magnetics 2015-11, Vol.51 (11), p.1-4
Main Authors: Chunyan Lai, Iyer, K. Lakshmi Varaha, Mukherjee, Kaushik, Kar, Narayan C.
Format: Article
Language:English
Subjects:
Current measurement
Electromagnetic Torque
Finite Element Analysis
Inductance
Inductors
Integrated Battery Charging
Investigations
Magnetic Coupling
Magnetism
Mathematical analysis
Mathematical models
Motors
Permanent Magnet Motor
Permanent magnets
Rotors
Stators
Torque
Voltage measurement
Winding
Windings
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:During integrated charging (IC) from a single phase ac utility employing permanent magnet machines, the magnetic field produced by the sinusoidal ac current passing through the stator windings: 1) affects the effective winding inductance used in the charger circuit as a function of different stator winding combinations and 2) produces oscillating torque of varying magnitudes as a function of rotor position. Understanding these challenges, this paper exclusively investigates the electromagnetic effects inside a surface-mounted permanent magnet synchronous machine (SPMSM) when it is used for IC operation in electric vehicles. Variation of oscillating electromagnetic torque magnitude as a function of rotor angle is investigated through finite-element analysis, and recommendations are provided to determine the lowest torque position favorable for IC operation. Thereafter, numerical investigations are conducted for five different stator winding combinations to analyze the issue of varying effective inductance as a result of magnetic coupling in the motor. Furthermore, a mathematical model is developed to obtain these inductances in the five winding configurations. Finally, the numerical investigations are validated by performing experimentations on a 21 hp SPMSM.
ISSN:0018-9464
1941-0069
DOI:10.1109/TMAG.2015.2432738