TY - GEN
T1 - Active filter for DC current components in three-phase distribution grids
AU - Barater, D.
AU - Buticchi, G.
AU - Franceschini, G.
AU - Lorenzani, E.
N1 - Copyright:
Copyright 2012 Elsevier B.V., All rights reserved.
PY - 2012
Y1 - 2012
N2 - In three-phase distribution networks non-linear loads can give rise to DC current components. A DC current component is particularly detrimental for the distribution power transformers, because it can lead to asymmetric magnetic core saturation. Apart from an increased THD in line currents, transformers operating under saturation conditions present increased VAR absorption, and, accordingly, possible damage consequent to the overheating. This paper proposes an electronic system able to compensate the undesired DC current components flowing in a three-phase distribution grid. This system comprehends a precise magnetic sensor and a power converter stage (different for low or medium-high voltage grids). The magnetic sensor detects the effects of the DC current components that flow in the power conductors, whereas the power converter compensates them. Simulation and experimental results show the effectiveness of the proposed system.
AB - In three-phase distribution networks non-linear loads can give rise to DC current components. A DC current component is particularly detrimental for the distribution power transformers, because it can lead to asymmetric magnetic core saturation. Apart from an increased THD in line currents, transformers operating under saturation conditions present increased VAR absorption, and, accordingly, possible damage consequent to the overheating. This paper proposes an electronic system able to compensate the undesired DC current components flowing in a three-phase distribution grid. This system comprehends a precise magnetic sensor and a power converter stage (different for low or medium-high voltage grids). The magnetic sensor detects the effects of the DC current components that flow in the power conductors, whereas the power converter compensates them. Simulation and experimental results show the effectiveness of the proposed system.
UR - http://www.scopus.com/inward/record.url?scp=84860170352&partnerID=8YFLogxK
U2 - 10.1109/APEC.2012.6166134
DO - 10.1109/APEC.2012.6166134
M3 - Conference contribution
AN - SCOPUS:84860170352
SN - 9781457712159
T3 - Conference Proceedings - IEEE Applied Power Electronics Conference and Exposition - APEC
SP - 2240
EP - 2245
BT - APEC 2012 - 27th Annual IEEE Applied Power Electronics Conference and Exposition
T2 - 27th Annual IEEE Applied Power Electronics Conference and Exposition, APEC 2012
Y2 - 5 February 2012 through 9 February 2012
ER -