DC-DC converter connected to three-level NPC inverter for renewable energy sources application

Abstract

This work presents a simulation analysis of several DC-DC converters applied to a three-level three-phase NPC inverter, while driving an induction motor with a load torque proportional to the square of the speed. The purpose is to identify practical solutions which can suit rural applications fed by renewable sources. Two topologies are proposed. The analysis is carried out through PSCAD/EMTDCtrade simulations, which show that the proposed solutions can be effective for the application.