Sensitivity Analysis of the Monte Carlo Reliability Calculation

Simulation reliability calculations of the electric power networks at the Department of Electric Power Engineering, VSB-Technical University of Ostrava, are processed in SPOHEL Complex program. This software is developing at the department since 1993. The input data are reliability parameters of particular nodes and branches. Since program implies in calculation also power balance, it is necessary to set to every node the consuming/generating power and to every branch its rated power. The branches can be classical ones, further there can be two types of backup branches (that means two types of cold reserves), and also T-joint line. Program SPOLEHComplex allows also setting the whole network including redundant areas and performing the reliability calculation. The outcome of calculation is then overall balance of solved network and outcoming reliability parameters of all nodes. The sensitivity calculation itself is performed on the IEEE Reliability Test System, the revision of 1996. That power system is directly intended to test and compare reliability calculation methods. In the paper is described sensitivity analysis of node reliability depending on supplied power and lines outage rate, respectively.