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 20 of 57 for “"chargers"”.
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Poisson Distribution based algorithm to reduce grid harmonics caused by EV chargers
The global market of electric vehicles (EVs) is growing rapidly because of several factors such as growing concerns for pollution, governmental incentives/subsidies and regulations and consumers’ increasing interest in quiet, pollution-free vehicles. Many countries are determined to sell only EVs …
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Integrated on-board battery chargers for EVs based on multiphase machines and power electronics
… thesis investigates integrated on-board battery chargers for electric vehicles (EVs) based on multiphase machines and multiphase power electronics. At present, EVs rely on three-phase systems for machine propulsion. However, recent advances in multiphase drive technology have firmly established …
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PCB-Based 1.2 kV SiC MOSFET Packages for High Power Density Electric Vehicle On-Board Chargers
Global energy consumption continues to grow, driving the need for cheap, power-dense power electronics. Replacing the incumbent silicon insulated gate bipolar transistors with silicon carbide (SiC) metal oxide semiconductor field effect transistors (MOSFETs) has been proposed as a solution to …
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Probabilistic assessment of the impact of integrating large-scale high-power fast charging stations on the power quality in the electric power distribution systems
… and are used to quantify such harmonic impact. Chargers from two different manufacturers are used in this study and the real measurement are performed at fast charging stations in Canada. The Monte Carlo method is used to probabilistically estimate the electrical vehicles (EV) power demand when …
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The Charge Forward: An Assessment of Electric Vehicle Charging Infrastructure in New York City
… between the number of gas pumps and fast EV chargers in the city, with only 170 Level 3/DC (Direct Current) Fast Chargers publicly available. These Level 3 chargers are most important because they can charge an EV in 15 minutes; Level 2 chargers, also considered in the analysis, take 4 or …
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Aerosol nanoparticle size spectrometry and classification methods based on corona unipolar charging.
… is usually applied by radioactive bipolar chargers, although new electrical charging techniques are arising. An efficient and versatile unipolar corona charger was developed. It has indirect charging characteristics, with corona and charging regions separated. Ions were generated by a …
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Bi-Directional AC-DC Converters for Electric Vehicles
… of an EV. There are specific requirements for EV chargers in terms of weight, safety, reliability, cost and efficiency. Meeting power quality standards imposed by grid and operation with wide range of DC voltage and current are among the other requirements. In addition, EV battery chargers can be …
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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 Vehicle-Induced Grid Impact Analysis and Its Minimization
… or long-distance travel for charging. As EV chargers draw power from the utility grid, adding the EV charging load impacts the utility grid significantly. This thesis investigates the impact of EV charging load on three vital grid-performance indicators (voltage profile, load demand curve, …
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Methodology for combined Integration of electric vehicles and distributed resources into the electric grid
… the design of grid connected electric vehicle chargers that integrate distributed generation and storage into a single system. The optimization tool is based on a linear programming approach that identifies designs with the minimum system lifecycle cost. The thesis also develops the component …
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Deploying EV Charging Infrastructure using Optimization with Real-Life Data
… mean or mode demand recommended 50-70% fewer chargers and achieved 20-150% lower simulated profits compared to temporal methods. Third, all three optimization approaches converge on nearly identical solutions—within 0.04 on optimal price and identical charger counts—providing confidence in …
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Electric Vehicle Fleet Charging Management
… EV fleets at depots equipped with heterogeneous chargers. To tackle this issue, we introduce an online optimization method supported by predictive modeling. This approach integrates future arrival information to accommodate uncertainties concerning arrival times, charge requirements, and due …
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Development of a Novel Multiport Power Converter for Inductive Power Transfer Applications
… of adverse weather conditions. Unlike plug-in chargers, there are no physical connections that could wear or be damaged and wireless charging standards ensure interoperability between all systems. Although IPT based EV chargers are already commercially available, there are still a number of …
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Essays on electric vehicles, wildfires, and regional economic impacts
… in higher-income counties. Furthermore, fast chargers are shown to increase EV adoption across a wider income range than slower chargers. These results indicate that infrastructure expansion alone will not produce equitable EV adoption outcomes. The second essay analyzes the long-run economic …
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Optimizing In-Garage Charging Schedules to Maximize Electrified Mileage for Electric Bus Fleets
… insights for the adoption of electric buses and chargers. Key findings include: (a) slow chargers may be more cost-effective than fast ones, given recent block schedules and cost estimates, (b) customizing charging strategies maximizes electrified distance but poses operational challenges, (c) …
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Class-E Current Source Power Conversion
… is used in auxiliary power supplies, battery chargers, and LED drivers. The battery chargers are required to provide constant current within a wide output voltage range, similar to LED drivers. The load-independent (LI) Class-E inverter is a promising topology for such applications since it …
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Planning and Optimization of Charging Strategies for Electric Vehicles: From Infrastructure to Behavioral
… optimal siting and allocation of slow and fast chargers. The framework explicitly incorporates queueing delays through an M/M/s system, treating the number of chargers as a decision variable to account for congestion and wait times. To improve computational tractability, especially for …
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Design, Modeling and Control of Bidirectional Resonant Converter for Vehicle-to-Grid (V2G) Applications
… batteries can be charged by on-board battery chargers that can be conductive or inductive. In conductive chargers, the charger is physically connected to the grid by a connector. With the inductive chargers, energy can be transferred wirelessly over a large air-gap through inductive coupling, …
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Analyzing the Role of Fast Charging Infrastructure on EV Adoption in Multi-Unit Residential Buildings: An Analysis Using Structural Equation Modelling
… on the utilization of Direct Current Fast Chargers (DCFCs) among residents of multi-unit residential buildings (MURBs) and non-MURBs in the City of Victoria, British Columbia, Canada. Using structural equation modelling, three models were tested to determine how attitudes, subjective norms, …
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