An Optimal Current Control of Interlink Converter Using an Explicit Model Predictive Control

Abstract

An interlink converter (IC) presents in a hybrid microgrid allowing a bidirectional power exchange between AC and DC sub-grids. In this paper, a model predictive control (MPC)-based IC current controller is employed, taking the current constraint into account to ensure the safety of IC. To reduce online computation burden of the MPC, a tabular form of MPC named Explicit MPC is applied. The simulation result shows that the proposed IC controller successfully maintains the power supply-demand balance of the hybrid microgrid. Moreover, the proposed method keeps the power exchange value in the acceptable range, particularly under high loading condition.

Optimal Design of a Residential Photovoltaic Renewable System in South Korea

“…For future study, we plan to construct more detailed PV design optimization models by considering discrete PV size variables [12][13][14], ESS (energy storage systems) [15,16], AC-DC conversion [17], and more energy-efficient lighting devices (light-emitting diodes). Normally, the size of PV is discrete, because a PV system consists of an integer number of panels.…”