Title :
Analysis of sudden short circuit current for PMSG
Author :
Shukang, Cheng ; Weiliang, Liu
Author_Institution :
Dept. of Electr. Eng., Harbin Inst. of Technol., Harbin
Abstract :
In this paper, the analytical solution of 3 phase sudden short circuit current for PMSG is derived with solid pole shoes replaced by damping windings. But numerically solution of current can not be approached from the analytical solution for the inductances relating to damping windings could not be calculated directly. For the direct solution of current, time stepping FEM is used with time constants and inductances obtained through current oscillogram analysis. Besides, the d-axis and q-axis sub-transient inductances could be obtained by 2 dimension eddy current field calculation. And the two inductances results are slightly different due to calculation meaning.
Keywords :
finite element analysis; machine windings; permanent magnet generators; short-circuit currents; synchronous generators; 2 dimension eddy current field calculation; 3 phase sudden short circuit current; FEM; PMSG; current oscillogram analysis; damping windings; finite element method; permanent magnet synchronous generator; solid pole shoes; Couplings; Damping; Equations; Footwear; Inductance; Short circuit currents; Solids; Stator windings; Synchronous motors; Voltage; PMSG; Sub-transient inductance; Sudden symmetry short circuit current;
Conference_Titel :
Vehicle Power and Propulsion Conference, 2008. VPPC '08. IEEE
Conference_Location :
Harbin
Print_ISBN :
978-1-4244-1848-0
Electronic_ISBN :
978-1-4244-1849-7
DOI :
10.1109/VPPC.2008.4677792
