Algorithms for power system security analysis

Abstract

This thesis analyses the transient stability calculation tools for power system dynamic security assessment. It gives basic implementation of common transient energy function methods: Extended Equal Area Criterion method, Relative Unstable Equilibrium Point method, Potential Energy Boundary Surface method. Assumptions for these methods and their affect on the accuracy are given. Detailed theoretical analysis, algorithms, and sensitivity analysis are presented for each method. Applications of these methods on two sample systems are performed and results are obtained.