Design and Implementation of Novel Multilevel Power Electronic Converters in V2G Energy Management System

Description :

This work will focus on multilevel topologies and their use in industrial applications such as in renewable energy integration and electric vehicle (EV) architecture. Multilevel (MCs) converter was emerged by Baker and Lawrence in 1975. Multilevel converter consists of an array of power semiconductors and capacitive voltage sources. It is capable to provide a desired alternating voltage level output from several lower levels of DC voltages. The converter should generate at least three voltage step levels in each phase in order to be categorized as a multilevel converter. Multilevel converters continue to surpass the traditional two-level converters and to overcome its drawbacks due to its overall capability to enhance the output power quality. There are three main types of MCs topology; three level neutral point diode clamped inverters (NPC) Flying-Capacitor Inverter (FCI), Cascaded H-Bridge Inverter (CHB). The proposed study will focus on multilevel NPC inverter due to its favorable features. Proposed attempts in literature to solve the major drawback of NPC inverter are tackled. Moreover, various control methods; Model Predictive Control (MPC), Sliding Mode Current, and Hysteresis Current Control; applied to multilevel NPC inverter are discussed. This proposal will study the impact of multilevel NPC inverter on EV applications. The aim is to use the multilevel NPC topology as a configurable MMC in EV. The purpose is to embed the group powertrain-charger utility: battery, electric machine, DC charger, AC charger through one converter based on multilevel NPC topology. The proposed work will evaluate the functionality of NPC multilevel on EV in terms of efficiency, voltage balancing, fast charging, reliability, volume and cost.