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A Way of Increasing Stability Margin of Current Control in VSCs Connected to the Grid Through LCL Filters

Authors

MARÍN ARÉVALO, LEONARDO VIDAL, RODRÍGUEZ CORTÉS, PEDRO, Candela, Ignacio , Rocabert, Joan

External publication

Si

Means

Ieee Energy Conversion Congress And Exposition

Scope

Proceedings Paper

Nature

Científica

JCR Quartile

✗

SJR Quartile

✗

Publication date

01/01/2017

ISI

000426847405040

Abstract

VSCs connected the grid through LCL filters are common in the integration of renewable energies into electrical systems. Therefore, in this paper small signal stability of the current loop of this configuration is performed. The analysis includes the getting of a state-space representation of the system, the calculation of their eigenvalues and the sensitivity analysis to the variation of some relevant parameters. Real-time simulations have also been carried out in order to validate the theoretical analysis.

Keywords

small signal stability; current control; proportional resonant controller; eigenvalues; sensitivity analysis; LCL-filter