Generalized Predictive Current Control for Grid-Connected Converter with LCL Filter
Martin Bejvl, Miroslav Chomát, Petr Šimek and Viktor Valouch Department of Electrotechnics and Electrophysics, Institute of Thermomechanics, Czech Academy of Sciences, Prague, (Czech Republic) 2026-02-15

Abstract

The current control based on the GPC (Generalized Predictive Control) algorithm for the power electronic converter
connected to the grid via LCL filter is developed. A design process of the control structure and its parameters, and the
results of simulation are presented. The current responses to changes in current references and to grid failures are shown and discussed. The algorithm works well also with unbalanced grid voltage. The simplicity and low sensitivity of the basic performance criteria to changes of the LCL filter parameters can be viewed as the important benefit of the strategy developed.

Key words: Generalized predictive current control, grid-connected converter, LCL filter, sensitivity to parameter changes, simulation.

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