Analysis of Self-Excited Synchronous Reluctance Generator

A steady-state model and a transient model of self-excited synchronous reluctance generator are developed for stand-alone operation. Saturation is considered to predict the actual behavior of the machine. The proposed linearized model is applied to obtain eigenvalues for steady-state stability analysis under different loading conditions. The effects of active, reactive, apparent power output and excitation capacitance on the steady-state performance of self-excited synchronous reluctance generator are analyzed. Eigen value sensitivity is calculated by varying circuit parameters from 50% to 0% of their standard values at 100 μF, 125 μF and 150 μF excitation capacitances. The proposed transient model is applied to observe the transient behavior of machine such as load angle, speed and electromagnetic torque when the machine is subjected to a three-phase symmetrical short-circuit fault across the machine terminals. The load angle sensitivity to machine circuit parameters is investigated