A New High-Performance Multisource Inverter: Design, Control, and Implementation
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Authors
Jafarian Jelodar, Yousefreza
Date
2025-02-05
Type
thesis
Language
eng
Keyword
Electric Vehicles , Traction inverters , Multilevel inverters , Model predicitve control , Multisource inverter
Alternative Title
Abstract
Greenhouse gas emissions that come from the burning of fossil fuels are known as the most important activities that cause the planet to get warmer. The transportation sector provides the largest portion of the emission among other sources producing greenhouse gases like electricity, industry, commercial, residential, and agriculture. The environmental issues, as well as the shortage of fossil fuels, are the two main reasons that today, both vehicle manufacturers and researchers have focused on switching internal combustion engine vehicles to electrified transportation. At the heart of each electrified vehicle, there is at least a traction inverter that converts energy between the battery and electric machine(s). The most common electric vehicles in the market utilize conventional two-level traction inverter for DC link voltages less than 700 Vdc, while according to the targets that the US Department of Energy has chosen for electric vehicles industries, they have to move forward to 1000 Vdc. At higher DC link voltage, the performance of the conventional traction inverter deteriorates. Hence, multilevel and multisource inverters are promising approaches to extract all the benefits of utilizing higher DC link voltage. Therefore, this thesis introduces new solutions in both multilevel and multisource inverters to enhance the traction inverters’ performances. As an attempt to address utilizing higher DC link voltage, a new modified space vector modulation technique is introduced and implemented in a three-level T-type neutral point-clamped topology to achieve higher efficiency without additional cost to add hardware components. To enhance the performance of electric vehicles, a highly efficient multisource inverter is introduced to integrate hybrid energy storage systems. Generally, battery packs are the main source of energy in electric vehicles, offering high energy density features to fulfill the required energy for long mileage. Although they can supply the required power, hybridization with complementary sources, such as supercapacitor banks, offers some significant benefits for electric vehicles. Therefore, this thesis presents a new highly efficient electronic hardware topology for hybridizing DC sources in electric vehicles and introduces a supervisory energy management system to control the power flow between the sources and the load.
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Queen's University's Thesis/Dissertation Non-Exclusive License for Deposit to QSpace and Library and Archives Canada
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Intellectual Property Guidelines at Queen's University
Copying and Preserving Your Thesis
This publication is made available by the authority of the copyright owner solely for the purpose of private study and research and may not be copied or reproduced except as permitted by the copyright laws without written authority from the copyright owner.
Attribution-NonCommercial-ShareAlike 4.0 International
ProQuest PhD and Master's Theses International Dissemination Agreement
Intellectual Property Guidelines at Queen's University
Copying and Preserving Your Thesis
This publication is made available by the authority of the copyright owner solely for the purpose of private study and research and may not be copied or reproduced except as permitted by the copyright laws without written authority from the copyright owner.
Attribution-NonCommercial-ShareAlike 4.0 International