Continuation power flow of voltage stability limits and a three dimensional visualization approach

This paper describes the continuation power flow method used in studies of voltage stability limits. In this work we were improve that the point of voltage limit will changes with loading parameter. However, we used this method in order to analyses voltage collapse. It is based on a predictor-corrector algorithm. We applied this method to an example of nine bus system known as WSCC 9 bus-system. A comparative analysis of the results of simulations with tow packages (Matlab and Power System Analysis Toolbox) is duly drawn. In the other hand, in this paper we discuss the efficacy of the Three-dimensional visualization approach in studies of voltage stability limits.