Assessment of Power Quality performance in distribution networks part II - Performance Indices and ranking of network buses

Abstract

Power Quality has become one of the main measures of distribution network operation evaluation. Utilities and customers monitor the different PQ aspects for benchmarking and compatibility check. This is a second part of a paper that investigates a long term PQ measurement campaign. In this part, global PQ indices are applied to combine a number of PQ phenomena indices into one number that represents the PQ performance of a site. Two global PQ indices are applied on 64-week PQ measurements of 8 sites. The indices are compared in terms of the final rank of sites. Different levels of flexibility are introduced to the indices to consider a variable importance or priority of the phenomena and sites.