Voltage harmonics of salient-pole generators under balanced 3-phase loads - II

In part I of this article [AIEE Transactions, pt. Ill-B (Power Apparatus and Systems), vol. 78, 1959 (Feb. 1960 section), pp. 1573-80] there were presented design formulas and curves for the calculation of hannonic content in the output voltage of salient-pole ac generators with both uniform and nonuniform air gaps, under balanced, 3-phase loading. This part of the paper presents the derivation of these curves and experimental verification of the formulas, as well as a convenient calculation sheet for analytical determination of the harmonics.