Stability Criteria for Ac Power Systems with Regulated Loads

Abstract

In this paper the voltage source converters are taken for getting the improved d c voltage at the AC source. In the distribution system, power grid is nonideal. with input as voltage source and which consists of some ripples here the power converters  or rectifiers are connected to the nonideal  grid .interacting with each other .in this paper we are maintains the constant voltage or stable power at the line by using the converters. We consider the effect of both source (grid) impedance and transmission line impedance between converters, It is shown that the system of interacting converters can become unstable. Moreover, results are presented in design-oriented forms so as to facilitate the identification of variation trends of stable operation boundaries. The Experimental results verify in simulink/MAT LAB.