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Power quality (PQ) regulation is of great importance due to the economical consequences associated with the presence of the disturbances in power systems. Regulations should provide interventions at the system level (transmission and distribution networks) and the local level at the point of common coupling between utilities and customers. This paper proposes an integrated approach for overall voltage...
It is difficult to find a reasonable and accepted index to evaluate the comprehensive level of power quality because of the great difference in characteristics and effects among all the individual problems. A new evaluation method is proposed which responses to what the customers care, based on the economical considerations. Example is given to show the advantages of the proposed method, including...
Scott transformer is widely used in electric railway systems when there are two unbalanced single-phase loads. The transformer reduces unbalance current. This paper investigates that if Scott transformer can also reduce the harmonic current. Our study shows that when there are two harmonic-producing loads connected to each single-phase side of the transformer, the harmonics produced by loads will...
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