INVESTIGADORES
DE BATTISTA Hernan
artículos
Título:
Performance analysis of a variable structure controller for power regulation of WECS operating in the stall region
Autor/es:
DE BATTISTA, H.; MANTZ, R.; CHRISTIANSEN, C.
Revista:
INTERNATIONAL JOURNAL OF ENERGY RESEARCH
Editorial:
John Wiley & Sons, Inc.
Referencias:
Año: 2001 vol. 25 p. 1345 - 1357
ISSN:
0363-907X
Resumen:
This paper deals with power regulation in variable speed wind energy conversion systems. The importance of power control in the stall region is stressed. This mode of operation is characterised by a non-minimum phase behaviour. A variable structure controller is described that provides stability by means of speed feedback and is robust to grid disturbances and model uncertainties. Performance of the controller is investigated. A compromise arises in the design of the speed feedback gain between high and low frequency wind components rejection. Furthermore, a cut-off frequency of the wind velocity measurement is obtained that minimises the effect of turbulence on power regulation. Simulation results are presented, corroborating the features of the control strategy.
