A-C servomotor operation from unbalanced voltages
E. R. Lind, N. L. Schmitz · Electrical Engineering · 1960
MANY analytical studies directed at the predetermination of output characteristics of a-c servomotors have been predicated on the assumptions of constant source impedance and sinusoidal excitation. Under these assumptions, the method of symmetrical components serves admirably, particularly when steady-state characteristics are desired, and in cases where the duration of the mechanical transients makes the electrical transients insignificant.