NDLI: Influence of Phase Magnetic Couplings on Phase Current Characteristics of Multiphase BLDC Machines With Overlapping Phase Windings

Content Provider	IEEE Xplore Digital Library
Author	Bostanci, E. Neuschl, Z. Plikat, R.
Copyright Year	1965
Abstract	Multiphase brushless dc (BLDC) machines are implemented in electric and hybrid electric vehicle applications due to their high torque/power density, good fault tolerance capability, and low torque ripple. Moreover, the per-phase converter rating can be reduced by increasing the phase number. However, the number of magnetic couplings between phases increases with the phase number, and these magnetic couplings can have an important influence on the machine performance. Therefore, they need to be considered in simulation models and their effect should be considered in control algorithms. Accordingly, the objective of this paper is to analyze the effect of magnetic phase couplings on the performance of multiphase BLDC machines with an overlapping phase winding configuration. First, a detailed electric machine model, in which the machine parameters that are determined by 2-D finite-element method analysis are implemented, is developed. Using this model, the influence of mutual inductances on phase current characteristics with pulse amplitude modulation (PAM) and pulsewidth modulation (PWM) controls is investigated. In addition, a novel PAM-based control strategy, in which the effect of phase mutual inductances is considered, is proposed and analyzed. After demonstrating the influence of mutual inductances on phase current characteristics, the dependence of mutual inductances on the winding configuration is studied. Finally, experimental results with the PAM control and the new PAM-based control are used to validate the simulation results.
Sponsorship	IEEE Magnetics Society
Starting Page	1
Ending Page	13
Page Count	13
File Size	5573750
File Format	PDF
ISSN	00189464
Volume Number	51
Issue Number	9
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2015-01-01
Publisher Place	U.S.A.
Access Restriction	One Nation One Subscription (ONOS)
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Analytical models Couplings Finite element analysis Integrated circuit modeling Windings Torque Inductance modeling Multiphase brushless dc (BLDC) machine self- and mutual inductance finite element method (FEM) pulse amplitude modulation (PAM) control pulse width modulation (PWM) control self-inductance and mutual inductance Finite-element method (FEM) multiphase brushless dc (BLDC) machine pulsewidth modulation (PWM) control
Content Type	Text
Resource Type	Article
Subject	Electronic, Optical and Magnetic Materials Electrical and Electronic Engineering

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