Three-Phase Synchronous Generators Performance with Unbalanced and Non-Linear Loading - Analytical and Experimental Analysis

This paper aims at investigating electrical and mechanical performance of three-phase salient pole synchronous generator with unbalanced and non-linear loading. The time domain technique is employed to represent the three-phase synchronous generator. By studying the generator operation with non-ideal AC load conditions, the machine electrical and mechanical impacts caused by unbalances and harmonics are evaluated and discussed. Besides theoretical studies, experimental results obtained from a 2 kVA three-phase prototype were derived so as to validate the computational approach and conclusions. Finally, by using a real size generator of 25 MVA, more realistic results are computationally achieved and discussed