Title :
Non-Linear Numerical Expression of Surge Voltage for Electromagnetic Clutch
Author :
Muramatsu, Junya ; Kojima, Takashi ; Tanaka, Hiroya ; Hattori, Yoshiyuki ; Okada, Hiroshi ; Keino, Hiroki ; Nakanishi, Takashi ; FUJISAKI, Keisuke
Author_Institution :
Toyota Central R&D Labs., Inc., Nagakute, Japan
Abstract :
In this paper, we propose a numerical method for accurately predicting the surge voltage generated in an electromagnetic (EM) clutch, which is the inductive load of a vehicular air conditioner compressor. The EM clutch is expressed by a 2-D transient response model that considers eddy currents and the non-linear magnetization characteristics of the clutch materials. We found that the surge voltage can be calculated exactly using this model. The calculation result differed from the measured value by <;5%.
Keywords :
air conditioning; clutches; compressors; eddy currents; electromagnetic devices; magnetic materials; magnetisation; numerical analysis; 2D transient response model; EM clutch material; eddy current; electromagnetic clutch material; inductive load; nonlinear magnetization characteristics; nonlinear numerical expression method; surge voltage prediction; vehicular air conditioner compressor; Eddy currents; Impedance; Integrated circuit modeling; Magnetization; Saturation magnetization; Surges; Voltage measurement; Eddy current; electromagnetic (EM) clutch; electromagnetic simulation; non-linear magnetic material; surge voltage;
Journal_Title :
Magnetics, IEEE Transactions on
DOI :
10.1109/TMAG.2014.2343753
