Multi-cell operation of a high-frequency isolated DC/AC converter for grid-connected wind generation applications

Author

Li, Xiaodong ; Bhat, Ashoka K S

Author_Institution

Fac. of Inf. Technol., Macau Univ. of Sci. & Technol., Macau, China

fYear

2009

fDate

28-31 Dec. 2009

Firstpage

169

Lastpage

174

Abstract

A high-frequency (HF) isolated DC/AC converter was proposed as the interface between a small-scale PMSG-based wind turbine generation system (WTGS) and a single-phase utility line. In this paper after a brief review of this configuration, different options of the multi-cell operation of this converter for high power wind generation applications are discussed. The effect of multi-cell operation on the harmonics on the input dc current and output line currents are addressed. It is found that both the 2nd harmonic in the input dc current and all triplen harmonics in the output line currents are eliminated when three identical single-phase converters in Delta connection are used. PSIM simulation results are included for the purpose of validation.

Keywords

DC-AC power convertors; permanent magnet generators; synchronous generators; wind turbines; PMSG-based wind turbine generation system; PSIM simulation; WTGS; delta connection; grid-connected wind generation applications; high power wind generation applications; high-frequency isolated DC/AC converter; input dc current; multicell operation; output line currents; single-phase converters; single-phase utility line; triplen harmonics; AC generators; Analog-digital conversion; Bridge circuits; DC generators; Hafnium; Mesh generation; Power generation; Rectifiers; Resonant inverters; Wind energy generation; grid-connection; high-frequency isolation; multi-cell; wind generation;

fLanguage

English

Publisher

ieee

Conference_Titel

Industrial and Information Systems (ICIIS), 2009 International Conference on

Conference_Location

Sri Lanka

Print_ISBN

978-1-4244-4836-4

Electronic_ISBN

978-1-4244-4837-1

Type

conf

DOI

10.1109/ICIINFS.2009.5429869

Filename

5429869