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This paper presents a current controller that shapes, in the frequency domain, the input admittance of voltage-source converters connected to the grid. The controller is obtained by means of a $\mathcal {H}_\infty$ synthesis procedure, which minimizes the difference between the application closed-loop input admittance and a model-reference defined by the designer. This formulation achieves good accuracy...
This paper presents a novel active damping technique of current-controlled grid-connected power converters through LCL filters. Based on ℋ∞ synthesis algorithms, a grid current controller is obtained so that the grid-connected power converted-based application admittance resembles a given frequency reference. By defining a low resistive admittance as the reference, considered application resonance...
This paper proposes an H∞ current controller that allows power converter input admittance shaping, both in modulus and in phase, in a three phase voltage source converter to grid connection through an L filter. In addition to this new feature, controller allows grid current tracking. Proposed controller tries to solve then trade-off problem between stand-alone converter performance (current tracking)...
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