Title :
Time domain analysis of induction motor starting transients
Author :
Natarajan, R. ; Misra, V.K. ; Oommen, Mathew
Author_Institution :
Dept. of Min. Eng., Pennsylvania State Univ., University Park, PA, USA
Abstract :
A simplified time-domain analysis based on the equivalent circuit, differential equations and the Laplace transform is presented for the calculation of the starting current of an induction motor. The model provides a closed-form solution to the transient starting inrush current. The solution is realized by the superposition of natural and forced responses of the starting current components. The calculated transient components are displayed for natural, forced, and complete responses. Experimental verification of the results was carried out on a 2 hp, 220 V, 7 A, 3600 r/min, wye-connected, three-phase induction motor. There is a reasonable agreement between the calculated and the measured transient current values
Keywords :
Laplace transforms; differential equations; electric machine analysis computing; equivalent circuits; induction motors; starting; time-domain analysis; transients; 2 hp; 220 V; 7 A; Laplace transform; closed-form solution; differential equations; electric machine analysis computing; equivalent circuit; induction motor starting transients; inrush current; responses; time-domain analysis; Differential equations; Equivalent circuits; Induction motors; Laplace equations; Machinery; Mathematical model; Time domain analysis; Torque; Transient analysis; Voltage fluctuations;
Conference_Titel :
Power Symposium, 1989., Proceedings of the Twenty-First Annual North-American
Conference_Location :
Rolla, MO
Print_ISBN :
0-8186-2005-6
DOI :
10.1109/NAPS.1989.77083
