Wind Gust Protection Algorithm for Non-Pitched Control Wind Farm

Mohamed M. A. Mahfouz, Mohamed A. H. El-Sayed

2018/04/20

Abstract

A significant capacity of wind energy has been recently interconnected into the public grids to utilize this clean energy for electricity generation. The efficient utilization of wind-converted energy requires stable operation of wind farms under wind gust conditions. This paper focuses firstly on defining the critical wind speed together with the corresponding critical voltage and current of the wind generators to keep the farm in its stable region. Secondly, an over speed protection scheme is proposed to trip out the wind farm before reaching its unstable region. Thereby, the critical clearing time for the proposed over speed relay is determined in coordination with the wind gust speed and the corresponding critical voltage and current. The simulation results indicate that the proposed over speed turbine protection improves significantly the grid connected wind farm system performance under wind gust conditions.

Published in: Renewable Energy & Power Quality Journal (RE&PQJ, Nº. 16)
Pages: 421-426 Date of Publication: 2018/04/20
ISSN: 2172-038X Date of Current Version:2018/03/23
REF: 332-18 Issue Date: April 2018
DOI:10.24084/repqj16.332 Publisher: EA4EPQ

Authors and affiliations

Mohamed M. A. Mahfouz1, Mohamed A. H. El-Sayed2
1 Electrical Power and Machines Dept., Helwan University, Cairo, Egypt
2 Electrical Dept., College of Engineering and Petroleum, Kuwait University, Kuwait

Key words

Wind Energy, Wind Gust, Turbine Modeling, Over speed protection.

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