Achieving Perfect Tracking in Presence of Saturationplant model and Model Uncertainty in Current Regulators for Voltage Source Inverters

摘要

Model Predictive Control (MPC) has attracted significant attention from the power electronics community. In this body of work it is usual to utilize a linear load model. Also, to deal with computational complexity, it is common to deploy horizon 1 optimization. A major difficulty with these standard approaches is that modelling errors, e.g. those arising from non-linear effects such as magnetic saturation, lead to poor tracking performance. In this paper we show that perfect tracking is achievable provided that MPC controller is augmented by a suitable observer. This claim is supported by extensive simulation results.