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 17 of 17 for “"battery management systems"”.
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Fast adaptive observers for battery management systems
… demand for new efficient and safe algorithms for battery management has surged. More complex chemistry cells, such as lithium-ion batteries, with their sensitivity to mishandling, misuse and defects as is evident with recent device recalls due to fires, have historically been treated more …
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Battery Management Systems for Firefighting Robots Using Simulation Modeling
<p>The battery management systems for firefighting robots are intended to enable firefighting robots to increase operating time and to effectively extinguish a fire while managing the amount of water in a fire hose and cooperating sub-robots. To increase the operating time by managing the traction …
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Compact and efficient power electronics with applications to battery management systems
… circuits. Another area of research is on fast battery charging using active battery management system topologies. These topologies have been proven before but this work expands upon those by using modern power electronics techniques to minimize the size and maximize the efficiency. This is …
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Cloud and digital-twin enhanced thermal safety framework for e-mobility battery management systems
… EV fires expose critical shortcomings in current battery management systems (BMS) and thermal controls. LIBs exhibit nonlinear characteristics sensitive to operating and environmental conditions, but existing BMS technologies rely solely on surface temperature measurements, neglecting core …
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Comparative Analysis of Coulomb Counting and Extended Kalman Filter for State of Charge Estimation in Battery Management Systems
… a measure of the amount of available charge in a battery cell. It is not possible to directly measure SOC because it is a function of the stoichiometric concentration of ions in the cell, hence current and voltage measurements were used to obtain the required accurate and precise estimation. …
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Assessment of fire and explosion hazards in large-scale battery energy storage systems intended for Namibian green hydrogen projects
The integration of large-scale battery energy storage systems (BESS) is a pivotal component in advancing Namibian green hydrogen projects, aimed to promote sustainable energy solutions. But there are serious fire and explosion risks associated with the use of Battery Energy Storage Systems, …
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Technological Development Trajectories of the Component Technologies in Battery Electric Vehicles
… concern about climate change grows, interest in battery electric vehicles (BEVs) is rising. BEVs are forecasted to constitute about 40% of passenger vehicle sales in 2035. While BEVs produce no emissions from the tailpipe, they face challenges, such as driving range and refueling time, that …
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Rapid remaining-useful-life prediction of Li-ion batteries using image-based machine learning
… in our everyday lives, accurate and reliable battery management systems have become an imperative aspect of the well-being of our everyday electronics. This thesis proposes the use of novel machine learning methodologies to predict the remaining-useful-life (RUL) of lithium-ion batteries …
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Machine Learning Application in Energy Storage System’s State Estimation: State of Health (SOH)
… demand for the modern prognostics and health management system for the Li-ion batteries under real-world operation, specifically for the electric vehicle (EV) applications. Since the estimation of battery state of health (SOH) is critical for the safety and the decision making such as warranty …
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Control-oriented modeling and adaptive parameter estimation of a lithium ion intercalation cell
Battery management systems using parameter and state estimators based on electrochemical models for Lithium ion cells, are promising efficient use and safety of the battery. In this thesis, two findings related to electrochemical model based estimation are presented - first an extended adaptive …
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A generalized form for frequency-response modeling of battery energy storage systems
… impedance behavior of three commercial battery chemistries: a 1.5 Ah lithium-ion (LiFePO4), a 5 Ah lithium-ion (NMC811), and a 1.5 Ah sodium-ion (NaFePO4) cell. An extensive experimental protocol was executed, subjecting the cells to conditions including temperatures from −20°C to +60°C, …
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Characterisation and prediction of state of health of rechargeable batteries
… spectroscopy (EIS) is used extensively in battery research, but usually at frequencies that do not reflect real-world usage patterns. This has resulted in equivalent circuit models (ECMs) that are over-complicated, and suboptimal battery management systems. It is logical to measure …
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Simulating, Controlling, and Understanding Lithium-ion Battery Models
… Developing better batteries and more intelligent battery management systems is an active area of research – operating batteries safely, maximizing their lifetimes, and inventing new materials are essential for their continued proliferation. To create the next generation of batteries, researchers …
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A tool for analyzing the evolution of non-uniformities in lithium-ion cylindrical battery cells at the module level under various operating conditions
… portable electronics, and grid energy storage systems, necessitating advanced modeling techniques to enhance their safety, performance, and lifespan. This thesis presents the development and validation of a coupled electrical and lumped thermal model for cylindrical lithium-ion batteries along …
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Data-driven understanding and forecasting of electrochemical systems
Electrochemical energy systems such as batteries and supercapacitors have played an important role in society for two centuries. The rise of the consumer electronics industry has been underpinned by innovations in battery technology, and batteries are subject to more public interest now than ever …
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DETECTING MECHANICAL DAMAGE FROM THE TIME CONSTANTS OF LI-ION BATTERIES
… work has shown that mechanical damage to the battery may not affect its voltage, capacity, or other primary specifications. Currently, there is no reliable method to check the integrity of battery cells inside an electric vehicle battery pack once it has been subjected to a shock or impact. …
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The development of novel services for battery storage in domestic applications and communal mini-smart grids
Lithium-ion battery technology remains a key factor in energy storage technology due to its advantageous features which include high energy and power density, low self-discharge, and longer lifespan. However, the continuous cycling of the battery over its lifetime results in gradual internal …