Selection of optimum excitation capacitance for a high (six) phase self excited induction generator

High (more than three) phase self-excited induction generators (SEIGs) are evoking lots of interest amongst researchers off late. This may be attributed to better stability and reliability of these machines in general. This paper presents the study of a six phase self-excited induction generator (6Ph-SEIG) operating with optimum excitation capacitances. For this purpose detailed mathematical modeling of a six phase SEIG and its implementation in Simulink is achieved. Extraction of magnetizing characteristic and evaluation of optimum excitation capacitance are explained through conducted experimental investigation. The paper is concluded by reporting no-load voltage profile of six phase SEIG in the present case. An open stator winding, 2.2 KW induction machine connected for six phase operation is utilized for the analysis.