Title: A novel study for constant voltage and frequency operation of self-excited short-shunt induction generator

Authors: H.H. Hanafy; S.A. Zaid; A.M. Gesraha; M.M. Abd-Elaziz

Addresses: Electrical Power and Machines Department, Faculty of Engineering, Cairo University, Giza 12613, Egypt. ' Electrical Power and Machines Department, Faculty of Engineering, Cairo University, Giza 12613, Egypt. ' Electrical Power and Machines Department, Faculty of Engineering, Cairo University, Giza 12613, Egypt. ' Electrical Power and Machines Department, Faculty of Engineering, Cairo University, Giza 12613, Egypt

Abstract: This paper presents an analytical technique for selecting the optimal shunt and series capacitances required for maintaining constant load voltage and frequency of a self excited short shunt induction generator (SESSIG). The study investigates the performance of the SESSIG at different operating conditions, such as speed of the prime mover, load impedance and load power factor. The required capacitances have been determined using two second order non-linear equations based on the steady state equivalent circuit model, instead of the high order non-linear equations in the literatures. The capacitance values obtained by the proposed technique have been verified experimentally to confirm the validity and the accuracy of the proposed technique.

Keywords: short-shunt induction generators; self-excited induction generators; variable speed prime movers; voltage control; frequency control; load impedance; load power.

DOI: 10.1504/IJRET.2012.047480

International Journal of Renewable Energy Technology, 2012 Vol.3 No.3, pp.237 - 253

Received: 17 Jun 2011
Accepted: 18 Sep 2011
Published online: 29 Oct 2014 *

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