DocumentCode :
1543077
Title :
FE-Circuit Coupled Model of Electric Machines for Simulation and Evaluation of EMI Issues in Motor Drives
Author :
Mohammed, Osama A. ; Ganu, Shreerang
Author_Institution :
Dept. of Electr. & Comput. Eng., Florida Int. Univ., Miami, FL, USA
Volume :
46
Issue :
8
fYear :
2010
Firstpage :
3389
Lastpage :
3392
Abstract :
A new FE-circuit coupled model is proposed to simulate the electromagnetic field interference (EMI) caused by terminal overvoltage and ground current of electric machines connected to driving circuits. The high frequency effects due to the PWM drive were considered in the transient FE-circuit coupled model of the motor using a two-step procedure. First, the resistance in each individual winding turn of a coil is evaluated by time harmonic high frequency FE analysis considering skin and proximity effects. The capacitances of the coil were calculated by an electrostatic FE analysis to form a distributed parameter model of the coil in each conducting region. Second, a lumped parameter model for the coil was obtained through a matrix reduction technique. The lumped models of the different coils were connected in series to form a per phase winding model. The FE-circuit coupled model of the motor is tested in a motor drive to evaluate the terminal over voltages and ground currents. The numerical results were successfully verified by the corresponding laboratory test measurements. The proposed model can be used as a novel computational prototyping tool which would allow the development to design and final product stages to be completed without the need for repeated build and test procedures in an industrial environment.
Keywords :
electromagnetic interference; finite element analysis; machine windings; matrix algebra; motor drives; FE-circuit coupled model; electric machines ground current; electromagnetic field interference; electrostatic FE analysis; laboratory test measurements; matrix reduction technique; motor drives; terminal overvoltage; time harmonic high frequency FE analysis; Circuit simulation; Coils; Coupling circuits; Electric machines; Electromagnetic interference; Frequency; Motor drives; Pulse width modulation; Testing; Voltage control; Computational prototyping; EMI; EMI testing; finite element; high frequency motor models; motor drives;
fLanguage :
English
Journal_Title :
Magnetics, IEEE Transactions on
Publisher :
ieee
ISSN :
0018-9464
Type :
jour
DOI :
10.1109/TMAG.2010.2045746
Filename :
5512907
Link To Document :
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