Title :
A transient finite element method for power electronic driven electric machines
Author :
Fu, W.N. ; Yiduan Chen
Author_Institution :
Dept. of Electr. Eng., Hong Kong Polytech. Univ., Hong Kong, China
Abstract :
A method to deal with the effect of the free wheeling diodes in the power electronic converter of brushless d.c. motor when using the time stepping finite element method is described. The circuit equations of the power electronic converter and the finite element equations of magnetic field are directly coupled together and are solved simultaneously. The study reveals that if the effect of the free wheeling diodes is ignored in the computation, because the sudden change of the currents, additional numerical errors will be produced. A brushless d.c. motor model is developed to illustrate the problem.
Keywords :
brushless DC motors; diodes; finite element analysis; power electronics; brushless DC motor; free wheeling diode effect; magnetic field; power electronic converter; power electronic driven electric machine; transient time stepping finite element method; Equations; Finite element analysis; Integrated circuit modeling; Mathematical model; Power electronics; Stator windings; Brushless d.c. motor; eddy current; finite element; permanent magnet; time stepping;
Conference_Titel :
Power Electronics Systems and Applications (PESA), 2013 5th International Conference on
Conference_Location :
Hong Kong
Print_ISBN :
978-1-4799-3276-4
DOI :
10.1109/PESA.2013.6828248
