Multi-loop linear resonant voltage source inverter controller design for distorted loads using the linear quadratic regulator method

In this study, an optimal multi-loop linear resonant control structure for a voltage source inverter (VSI) coupled to an inductor-capacitor (LC) filter is proposed for supplying nonlinear loads. A resonant controller ensures that sinusoidal voltage references are properly tracked and sinusoidal current disturbances are rejected without steady-state error under stable conditions. A desired transien...