Computation of Sensitive Node for IEEE- 14 Bus system Subjected to Load Variation

The load flow analysis is an important method for the power system analysis and designing. This analysis is carried out at each and every state of planning, operation, control and economic scheduling. In this paper, we have focus on the finding of most sensitive node in IEEE14 bus systems. Simulation is carried out at PSAT Matlab Toolbox which includes a complete set of user-friendly graphical interface and a Simulink-based editor for one-line network diagrams which utilizes the L-index method and FVSI for voltage stability analysis and sensitive nodes determination. In this project, firstly we have analyzed IEEE14 bus system under the standard test data & after that we have increased load data in step of 5%. For finding a most sensitive node, the results are compared with the original power flow results of IEEE14 bus system.