Mehran University Research Journal Of Engineering &
Technology (HEC Recognized In Category "X")
Publishing Since 1982.

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Application of Generalized Machine Theory in Analysis of Behavior of Universal Motor

Keywords: Transients, Dynamics, Universal Motor, Transient Behavior, Modeling of Universal Motor

Mehran University Research Journal of Engineering & Technology

Volume 33 ,  Issue 4



This paper teaches GME (Generalized Machine Theory) while investigating into Universal Motor?s Dynamic Behavior for both transient and steady-state on various load applications. Formation of GME Equations of the Universal Motor is explained by formation of the transient equations of equivalent circuit of the universal motor, by applying Kirchhoff?s Loop Law. They are numerically solved for transient behavior. After that the transient equations of the motor are converted into steady-state equivalent equations by replacing instantaneous currents and voltages into their rms values and substituting and then etc. and solving for steady-state solution. In each dynamic switching, transient and steady-state analysis, input power, current, power factor and speed of the motor are determined and plotted against common time and then analyzed. This research was essential to investigate the effect of applied load on input and output behavior of Universal Motor. Up to now, nobody has attempted to find effect of applied loads on performance of the Universal Motor. The results obtained for the dynamic steady state and transient characteristics are presented in graphical form and discussed