Control Technique for Converter-Connected Photovoltaic

Abstract

This paper focuses on controlling the power flow from converter-connected PVs to the load or the distribution network. Control schemes are presented which allow controlling single-phase converter and independently each phase of the three-phase converter-interfaced PVs during grid connected or stand alone operation. These controllers technique provide additional control flexibility to balance voltages in a distribution network with high penetration of PVs. The performance of these controllers is tested and explained using case studies implemented in Power system simulation program (PSCAD).