Limiting values for steady state operation of self-excited induction generators

Abstract EN

Based upon the steady state analysis of variable speed self-excited induction generators, it is shown in this paper that there are certain limiting values of terminal excitation capacitors, machine speed, and load impedance below or above which self excitation is not possible.

Analytical expressions are obtained to determine these limiting values for the no-load case.

Furthermore, the influence of load parameters on such limiting values is investigated using numerical computations.

Both balanced and unbalanced (employing only one excitation capacitor) cases have been treated.