Dynamic stability modification of the standard network with three machines and nine buses in IEEE due to asymmetric two-phase fault and two-phase and two-phase in the ground fault with sliding control mode

Abstract

The purpose of this thesis is to modify the dynamic stability in the standard network with three machines and nine buses in IEEE due to asymmetric two-phase fault and asymmetric two-phase in the ground fault with sliding mode controler in certain places of the system. The analysis method in the time domain uses the positive and negative spatial vectors of the currents and voltages in the network. Sliding mode controler is used to damp the high frequency oscillation and power system stabilizers (PSS) are used to apply additional signals. Using the AVR, the busbar's voltage is kept constant at the nominal values. In this thesis, it is necessary that initial values are obtained based on a Loud-Flow solution.