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International Journal of PhotoenergyVolume 2013 2013, Article ID 217023, 14 pages

Research Article

College of Electrical Engineering, Shanghai Dianji University, Shanghai 200240, China

College of Mechanical Engineering, Shanghai Jiao Tong University, Shanghai 200240, China

Received 25 January 2013; Revised 25 June 2013; Accepted 11 July 2013

Academic Editor: Keith Emery

Copyright © 2013 Ying Jiang et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

Abstract

In three-phase photovoltaic PV system, three-phase filter inductors are important part for the output electrical power quality. The comparison analyses of three-phase discrete filter inductors and two kinds of three-phase integrated filter inductors in three-phase PV inverter are proposed. Firstly, the three-phase PV inverter operation with discrete filter inductors is analyzed, and the design of discrete filter inductors is given; then operation of the three-phase PV inverter with three-phase integrated five-limb magnetic core filter inductors is analyzed, the design of integrated filter inductors with five-limb magnetic core is given, then the operation of three-phase PV inverter with three-phase integrated three-limb magnetic core filter inductors is analyzed, and the design of integrated filter inductors with three limbs magnetic core is given. The conclusion of comparison between three-phase discrete filter inductors and two kinds of three-phase integrated filter inductors is done; it means that the three-phase discrete filter inductors can achieve better output electrical power quality with lower power density and three-phase integrated filter inductors can achieve higher power density with lower output electrical power quality. Finally, the experiment results are given to compare the volume and filter effect of three kinds of filter inductors in three-phase PV inverter.





Author: Ying Jiang, Jianguo Li, Sanbo Pan, Xi Zhang, Peng Hu, and Haiyan Zhang

Source: https://www.hindawi.com/



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