Open AccessModelling an AC motor with high accuracy in a wide frequency range
Author(s) -
Jia Kelin,
Bohlin Georg,
Enohnyaket Mathias,
Thottappillil Rajeev
Publication year - 2013
Publication title -
iet electric power applications
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.815
H-Index - 97
eISSN - 1751-8679
pISSN - 1751-8660
DOI - 10.1049/iet-epa.2012.0127
Subject(s) - induction motor , range (aeronautics) , noise (video) , ac motor , equivalent circuit , electronic engineering , spice , electrical impedance , universal motor , motor drive , voltage , oscillation (cell signaling) , engineering , power (physics) , control theory (sociology) , computer science , electrical engineering , physics , mechanical engineering , control (management) , aerospace engineering , artificial intelligence , quantum mechanics , biology , image (mathematics) , genetics
This study presents a practical method to construct a high‐frequency equivalent circuit model for AC motors in Spice‐like simulation software. This model can be used to analyse the characteristics of the motor and predict the conducted electromagnetic noise in an adjustable speed drive system. The modelling is based on measured data of the impedance and vector fitting technique. The procedure of the modelling is elaborated in this study and verified by comparing simulated data with experimental data on a 200 kW induction motor in the frequency range from 10 kHz to 10 MHz. This modelling method can be extended to model other types of motors irrespective of the power rating of the motors. Applications of the motor modelling to study common mode voltage in the system and current oscillation in motor winding are presented.