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

fYear

1989

fDate

9-10 Oct 1989

Firstpage

120

Lastpage

128

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;

fLanguage

English

Publisher

ieee

Conference_Titel

Power Symposium, 1989., Proceedings of the Twenty-First Annual North-American

Conference_Location

Rolla, MO

Print_ISBN

0-8186-2005-6

Type

conf

DOI

10.1109/NAPS.1989.77083

Filename

77083