Statistical analysis for the detection of voltage fluctuations in distributed synchronous generation using extended participations factors

This work proposes the use of a new concept of participation factors as a tool to detect voltage fluctuations caused by electromechanical oscillations in distributed generation systems, in order to evaluate the impact of these oscillations in power quality. While the originally proposed participation factors (here called traditional ones) may not appropriately detect the mentioned impacts (which manifest themselves in the form of voltage fluctuations), the extended participation factors used in this paper are able to detect an quantify them from a statistical viewpoint. To calculate these factors, a statistical approach based on Monte Carlo Simulations is adopted. The results of a case study presented in this paper illustrate the effectiveness of the extended participation factors in the detection of the mentioned voltage fluctuations.