Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 19 of 19 for “"Electric vehicles (EV)"”.
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What factors influence individual buyers' decisions to adopt electric vehicles (EV) in New Zealand, and to what extent do these factors contribute to the current state of EV uptake?
Adoption of electric vehicles (EV) is crucial for reducing greenhouse gas emissions, achieving sustainable transportation and meeting the targets set by the Emission Reduction Plan by the Government of New Zealand. The research aims to investigate the extent to which determinants such as economic …
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Microcontroller Design of a Bidirectional Three-Level Pulse Width Modulation AC/DC Converter for Vehicle-to-Grid Application
<p>Bidirectional chargers provide plug-in electric vehicles (EV) the ability to not only transfer energy from the grid to the vehicle, but also transfer energy from the vehicle to the grid (V2G). The V2G mode allows power utility companies to offset peak power consumption thus allowing household …
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Electric Vehicles as Grid Resources
Electric vehicles (EV) are poised as environmentally-friendly alternatives to conventional combustion vehicles because of the internal battery which uses electricity for transportation. It is estimated the global EV penetration will hit upwards of 20 million on the road by 2020. Even with this …
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Challenges in Electric Vehicle Adoption and Vehicle-Grid Integration
… support from governmental bodies and regulators, electric vehicles (EV) sales are poised to rise. While a better and cleaner world is likely in the near future, wide adoption of EVs also raises many challenges. First, to promote wide adoption of EVs requires sufficient amount of charging …
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A novel complex system approach for the determination of renewable energy sources impact on electricity infrastructures
… sources (RES) and sustainable mobility. However, the actual physical and economic models on which power system management rules are based on, are not able to properly manage the high amount of unwanted power fluctuations introduced by RES power generation. For such reason, major issues has …
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Direct Lithium-ion Battery Recycling to Yield Battery Grade Cathode Materials
… in recent years due to the proliferation of electric vehicles (EV). A large amount of lithium-ion batteries are expected to reach their end-of-life (EOL) within five to seven years. The improper disposal of EOL lithium-ion batteries generates enormous amounts of flammable and explosive …
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Evaluation and Development of Medium-Voltage Converters Using 3.3 kV SiC MOSFETs for EV Charging Application
The emergence of wide-bandgap-based (WBG) devices, such as silicon carbide (SiC) and gallium nitride (GaN), have unveiled unprecedented opportunities, enabling the realization of superior power conversion systems. Among the potential areas of advancement are medium-voltage (MV) and high-voltage …
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Advances in Lithium Ion Batteries Obviate Need for Ultracapacitors in Electric Vehicles
… hybrid circuit topologies (active/passive) in electric vehicles (EV). In this paper, available models in MATLAB/Simulink are used to assess the need for lithium ion battery/ultracapacitor hybrid topologies. The battery parameters are varied to observe the effects of new (A123 LiFePO4) and old …
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Experimental study of reversible AC/HP system for electric vehicles
… combustion engine for cabin heating. While for electric vehicles (EV), the energy conversion efficiency is much higher, so that there isn't much waste heat available for cabin heating. A general way to provide heat for EV is to use a positive temperature coefficient (PTC) heater to convert …
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Synthesis of lithium manganese phosphate by controlled sol-gel method and design of all solid state lithium ion batteries
… are being made to provide energy for hybrid electric vehicles (HEV), plug-in hybrid vehicles (PHEV) and pure electric vehicles (EV) thus providing scope for much greener environment. Hence, focus has been on development in lithium ion batteries to provide with materials that have high energy …
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Performance Evaluation of a Cascaded H-Bridge Multi Level Inverter Fed BLDC Motor Drive in an Electric Vehicle
The automobile industry is moving fast towards Electric Vehicles (EV); however this paradigm shift is currently making its smooth transition through the phase of Hybrid Electric Vehicles. There is an ever-growing need for integration of hybrid energy sources especially for vehicular applications. …
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Distribution Level Building Load Prediction Using Deep Learning
… load predictions has become more crucial than ever as electrical load patterns are becoming increasingly complicated due to the versatility of the load profiles, the heterogeneity of individual load consumptions, and the variability of consumer-owned energy resources. However, despite the …
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Efficient Modeling of the Lithium Ion Cell Using the Proper Orthogonal Decomposition Method
… has been widely used in portable electronic devices, is used in aerospace and is the most promising power supplier for hybrid electric vehicles (HEV) and electric vehicles (EV) because of its high energy density, no memory effect, and low self-discharge properties. Since the lithium ion cell …
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The UW EcoCAR2 Vehicle Development Process and Vehicle Level Torque Control Strategy Documentation
… competition is a three year long collegiate level automotive engineering competition in which fifteen universities across North America to reduce the environmental impact of personal automobiles without sacrificing the consumer acceptability of the vehicle (Argonne National Labratories, 2014). …
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Multi-Agent System Based Energy Management Controller for Microgrids
… of distributed renewable energy sources and electric vehicles can significantly impact the power generation and energy consumption profile of the grid. To control these distributed sources and loads, an efficient energy management controller is required. However, the stochastic nature of …
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Investigating the Interfacial Evolution of Lithium Metal in Anode-Free Batteries with Liquid and Solid-State Electrolytes
… have enabled the rapid growth of the electric vehicles (EV) market. However, increased energy density and specific energy are necessary to facilitate further expansion of EV market share and for emerging technologies such as electric flight. A promising avenue to achieve this is by …
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Low Voltage Ride-Through for Indirect Matrix Converter Based Open-End Winding Drives
… systems and with the advent of wide band gap devices, which provide efficiencies greater than 95%, variable frequency drives will continue to grow and integrate into the systems. ASDs serve a varied set of processes including HVACs, oilrigs and recently many electric vehicles (EV). The most …
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Mesoporous materials and nanostructured LiFePO4 as cathodes for secondary Li-ion batteries: synthesis and characterisation
… as they are closely linked to the technological development. The search for energy sources to provide comfort and a smooth lifestyle has taken place since the beginning of civilization; however, the present energy needs are very much dependent on nuclear and fossil fuel (oil). Currently, as the …
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Synthesis and characterization of nanostructured materials for Li-ion secondary batteries
Rechargeable lithium batteries have already revolutionized the market of portable electronic devices. Potentially, in the next future, they are going to become the technology of choice for the huge market of electric vehicles (EV), hybrid-electric vehicles (HEV), and plug-in hybrid-electric …