S.P.Rajaram , V.Rajasekaran , V.Sivakumar
Voltage stability is an important problem in the Emerging world of technologies and development, the main objectives in operating an Electric power system is to maintain a proper voltage level thought a system. The Failure occurred in the system equipment to be damage and blackouts. This paper mainly discusses the nonlinear aspect of power systems, with emphasis on voltage instability. In that scenario modal analysis method make use of the power system Jacobean matrix to determine the eigenvalues necessary for the evaluation of the voltage stability of the power system. The least Eigen values indicate the proximity of the system to voltage instability. The voltage profile and critical loading is found by using continuation power flow method. These methods were implemented on IEEE 14 bus system result of the proposed work held on with the help of MATLAB software.