Harmonic current reduction control for grid-connected PV generation systems

Author

Ito, T. ; Miyata, H. ; Taniguchi, M. ; Aihara, T. ; Uchiyama, N. ; Konishi, H.

Author_Institution

Hitachi Res. Lab., Hitachi Ltd., Hitachi, Japan

fYear

2010

fDate

21-24 June 2010

Firstpage

1695

Lastpage

1700

Abstract

Integration of renewable energy sources (RES) with significant capacity, including photovoltaic (PV) generation systems, into the grid is expected within ten years. Such RESs bring to the grid not only their benefits but also some technical problems, as increase of harmonic currents. Compliance with the technical requirements for harmonic current is necessary for successful increase of RES capacity. A scheme to reduce harmonic current for grid-connected PV generation systems was developed. This control scheme effectively reduced harmonic current in the grid current of the PV generation system caused by voltage distortions at the grid. Experiments using a prototype of the power conditioning system (PCS) showed its validity. 400-kW PCSs with the control scheme have been installed and have been in service since the end of 2009.

Keywords

photovoltaic power systems; power system harmonics; renewable energy sources; PV generation system; harmonic current reduction control; photovoltaic generation system; power conditioning system; renewable energy source; Control systems; Harmonic distortion; Mesh generation; Personal communication networks; Photovoltaic systems; Power conditioning; Prototypes; Renewable energy resources; Solar power generation; Voltage control; PV generation system; grid voltage distortion; harmonic-current reduction control; power-conditioning system;

fLanguage

English

Publisher

ieee

Conference_Titel

Power Electronics Conference (IPEC), 2010 International

Conference_Location

Sapporo

Print_ISBN

978-1-4244-5394-8

Type

conf

DOI

10.1109/IPEC.2010.5542128

Filename

5542128