Oscillation reduction method of shaft torque which is associated with instantaneous voltage drop for private generation system

In this paper, the oscillation of terminal voltage, which are affected by fault of power system ind so on, brings about the oscillation of the shaft torque of gas-turbine generator, therefore, the lurpose of this study is to restrain the oscillation of the shaft torque with the shaft excitation control ising torsional torque control device. Since it is difficult to carry out this study using an actual non-utility generation equipment, lumerical simulation is performed with a model of the non-utility generation equipment made in VIATLAB/SIMULINK. The average torsional torque is used to evaluate the shaft torsional torque in zase of on and off for the shaft torsional control.