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Current control of voltage source converters connected to the grid through an LCL-filter

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5 Author(s)
E. J. Bueno ; Electron. Dept., Alcala Univ., Madrid, Spain ; F. Espinosa ; F. J. Rodriguez ; J. Urefia
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The aim of this paper is to propose a current control of VSCs connected to the grid through an LCL-filter. The proposed algorithm controls the grid current using only two sensors. Other variables are obtained with a state estimator, and the possible disturbances of the system are attenuated with active damping. The control algorithm has been proved for different disturbances, such as temporal variations in the components of the model and perturbations in the grid, and also with the linear and nonlinear models.

Published in:

Power Electronics Specialists Conference, 2004. PESC 04. 2004 IEEE 35th Annual  (Volume:1 )

Date of Conference:

20-25 June 2004