Tag: linear matrix inequality (LMI) method

This thesis describes a method of Linear Matrix Inequality (LMI) to determine robust gain for a three-phase grid-connected inverter (GCI). The robust controller technique is applied to a three-phase dc-ac inverter. This controller employs state feedback and integration of the tracking error in the 𝑑𝑞 rotational frame so that the offset-error can be eliminated. An…

This paper proposes using Linear Matrix Inequality (LMI) for robust controller design in a three-phase grid-connected inverter (GCI). The controller, applied to a three-phase dc-ac inverter, integrates state feedback and error correction within the dq-rotational frame to eliminate offset errors. An LMI-based optimization minimizes settling time despite uncertainties in the L-filter (expressed as resistance and…