Abstract
This paper presents a simple and effective method for the voltage control of a three phase self excited induction generator (SEIG). The paper is divided into two sections; first section deals with modeling of self compensated SEIG. In the second section a detailed performance analysis of SEIG without and with compensation is carried out. Each of the two models is subjected to different operating conditions by changing excitation and series capacitances, load etc., for a range of different power factor loads. The mathematical model of SEIG is developed in terms of simple quadratic equation rather than traditional nonlinear equation. Therefore, the implemented method does not require numerical solution of the modeled equations. The simulations are carried out by generating programming codes in MATLAB M-file and the veracity of proposed method is established through experimental tests on a 3 phase, 400 V induction motor. The optimum shunt and series capacitances to achieve best output profile are reported in the paper for present case.
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