Control strategies for enhanced power smoothing in wind energysystems using a flywheel driven by a vector-controlled induction machine
Cardenas, R.
Pena, R.
Asher, G.
Clare, J.
Electr. Eng. Dept., Univ. of Magallanes, Punta Arenas;
This paper appears in: Industrial Electronics, IEEE Transactions on
Publication Date: Jun 2001
Volume: 48,
Issue: 3
On page(s): 625-635
ISSN: 0278-0046
References Cited: 15
CODEN: ITIED6
INSPEC Accession Number: 6951737
Digital Object Identifier: 10.1109/41.925590
Current Version Published: 2002-08-07
Abstract
This paper presents a novel control strategy for power smoothing
in wind energy applications, especially those feeding a stand-alone
load. The system is based on a vector-controlled induction machine
driving a flywheel and addresses the problem of regulating the DC-link
system voltage against both input power surges/sags from a wind turbine
or sudden changes in load demand. The control is based on a feedforward
compensation scheme augmented by a nonlinear controller. Two feedforward
compensation schemes are discussed and the limitations and performance
of each scheme are analyzed. Experimental results are presented which
verify the excellent performance of the feedforward compensation
technique
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