Analysing grid impact of voltage fluctuations from multiple sources with/without STATCOM

This paper investigates the voltage fluctuations determined by industry perturbing loads in a power system, with and without a STATCOM device in operation. The monitoring campaign was carried on by simultaneously measuring the voltage fluctuations in various points of the supplying power system, for revealing each perturbing customer contribution, and the background flicker. During the measuring campaign, the STATCOM was in/out of operation for revealing its influence on flicker reduction. Mitigation equipments are considered for reducing flicker level, each perturbing load contribution to the total investment function of the perturbing level.