A New Proximity Indicator for Assessment of Voltage Stability and Critical Loadability Point

This paper presents a newly developed proximity indicator for voltage stability assessment which can be used to predict critical real system load and voltages at various buses loading point. The varies almost parabolic with total demand reaches orthogonally axis. relation has been utilized It shown that two operating points are needed estimating point proper selection of variation near collapse highly affect the accuracy estimation. Simulation is based on flow equations reactive loadings have increased in proportion base case scenario IEEE 14 25 bus test systems demonstrate behaviour proposed indicator. CPF as benchmark check