Analysis of continuous power flow method, Model analysis, Linear Regression and ANN for voltage stability assessment for different Loading conditions

Abstract

This Paper presents voltage stability assessment through P-V curve and bus voltage sensitivity factor. Active power margin is used to measure the distance to instability. Analyses by using computational methods are used to obtain P-V curve of power system. Continuation power flow starting with initial operating point and increasing load to the maximum loading point and to reduce the size of the jacobian matrix modal analysis is adopted. A data statistics analysis tool is used to run linear regression. In this paper the linear regression method with ANN is compared with conventional methods and voltage stability is improved within less iterations.