Selection of capacitors for the self regulated short shunt self excited induction generator

The self regulating feature of a self-excited induction generator (SEIG) by connecting additional capacitors is examined. A system consisting of both shunt and series capacitors has been analyzed. A methodology has been explained to choose an appropriate set of values of these capacitors for desired voltage regulation. Performance of short and long shunt configurations has been compared which shows the superiority of the short shunt connection. The results of a detailed investigation on a conventional 3.7 kW induction motor operated as a SEIG are presented to illustrate the effectiveness of the proposed method. Close agreement between predicted and test results has been observed, thereby establishing the validity of the analysis carried out and the criterion adopted.>