An analysis of the induction machine

THERE has long been a need for a means of evaluating the performance of induction motors under transient conditions, as when driving pulsating compressor loads. The familiar equivalent-circuit analysis is inadequate to determine the effects of pulsating speeds, and the more complete analysis of S. J. Levine
¹
is somewhat inconvenient, since the rotating axes assumed lead to involved equations. Probably the most convenient approach is to be found in the stationary-axis method so successfully applied by R. H. Park
²
to the analysis of salient-pole synchronous machines.