Multi- Component Current Control of a Single Phase Power Converter: A Model Predictive Approach

摘要

In this work a single phase voltage converter is operated to supply controlled current components into a distribution grid utility. The approach is based on implementing a model predictive controller (MPC) for each component of current supplied by the converter to a multi-feeder grid. The feeders are considered to be loaded by linear and/ or no-linear loads. Current components from the grid and converter sides are determined. A number of model predictive controllers are implemented corresponding to each current component supplied by the converter. The component control is implemented as sinusoidal quantities without the need to perform transforms such as αβ/dq. To observe the effect of switching frequency for each component, the number of switch commutations are counted for each MPC. The results shows that a separate controller acting on each component can be feasible and provide flexibility in controlling the targeted current component.