Abstract:In this work, a novel three-phase grid inverter topology with split DC-link and LC-filter is discussed. A proportionalintegral (PI) state-feedback current and voltage controller is
designed based on linear quadratic regulator (LQR) theory. The
midpoint current ripple is suppressed by introducing the filter
capacitor voltage as control target. Moreover, a 3-dimensional
Space Vector Modulation (3D-SVM) for this topology is implemented, which allows for larger voltage amplitudes compared
to conventional Pulse Wid… Show more
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