Novel method for optimal placement of power system stabilizer using principal component analysis

In order to improve system stability, power system damping controllers such as power system stabilizers (PSS) and FACTS (Flexible AC Transmission Systems)-based stabilizers are often used to damp oscillations and increase damping of the power system oscillatory modes. However, the optimal placement of PSS is extremely critical due to cost involved and the need for finding the most appropriate damping requirements and location for a given system. In this paper, we propose a novel method for optimal placement of power system stabilizer using principal component analysis. The proposed approach provides full ranked optimal conditions for the PSS placement as opposed to other work reported in the literature. Three test cases are performed to evaluate the proposed concept and it has been found that the proposed architecture outperforms the current methodologies reported so far.