Abstracto

Prediction of Weakest Area and Line in IEEE 57 Bus System

Muralikrishna Allem , J.O.Chandle

This paper presents a method of finding weakest area and line in complex power system network which comprises of a 57 bus and 6 generator system (IEEE 57-bus system). The case studies have been analyzed by considering the effect of generator outages and other abnormal loadings. This method uses a voltage stability index parameter to decide the maximum loading of the line beyond which line gets voltage collapse causing the surrounding area to get diverged from its normal stable point... The parameter called basic line stability index is derived and used to analyze whether the weakest area and the line in the complex network is far away from voltage collapse point or not. This index gives the idea about the voltage divergence point of the line and area of the system. The simulation results have been obtained by MATLAB programming for a 57 bus system. The main aim of using this method is to help the operators at load control centers to avoid blackouts which are serious problems of modern power system network.