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Author: Keyu Chen
Publisher:
ISBN:
Category :
Languages : en
Pages : 202
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Book Description
Le domaine du transport, l'un des plus grands secteurs d'énergie, doit affronter des défis importants tels que la sécurité énergétique, le changement climatique et les problèmes de la pollution. Pour répondre à cela, les Véhicules Électriques et Hybrides (VEHs) deviennent une option intéressante. L'un des problèmes clés liées au développement des VEHs est la conception de la commande de ce type de système complexe, lequel est composé de plusieurs sources et sous-systèmes. En utilisant la Représentation Énergétique Macroscopique (REM) qui est une représentation graphique basée sur l'énergie, une structure de commande peut être déduire directement par inversion du modèle. L'objectif de cette thèse est d'établir une REM commune capable de décrire différentes architectures de VEHs. A partir de cette REM, une structure de commande générale est obtenue. Cette structure de commande peut être utilisée pour l'étude de VEH série, parallèle et mixte, en changent seulement différents valeurs de paramètres. Cette REM permet de mieux comprendre les flux de puissance principaux des différent VEHs. En utilisant une approche descendante, la modélisation et la commande des différent VEHs ont été réalisées de manière générale, même si ces VEHs peuvent être très différents les uns des autres en termes de structure. Le temps requis pour la conception de la commande peut être ainsi considérablement réduit. Qui plus est, avec la même structure de commande, les différents VEHs peuvent être comparés plus facilement. La structure commune a été validée expérimentalement sur un émulateur de véhicule hybride série. Différentes gestions énergétiques plus efficaces de VEHs pourraient être développées et comparées. De ce fait, le coût de fabrication, la consommation de carburant et l'émission de CO2 peuvent être réduites.
Author: Keyu Chen
Publisher:
ISBN:
Category :
Languages : en
Pages : 202
Get Book Here
Book Description
Le domaine du transport, l'un des plus grands secteurs d'énergie, doit affronter des défis importants tels que la sécurité énergétique, le changement climatique et les problèmes de la pollution. Pour répondre à cela, les Véhicules Électriques et Hybrides (VEHs) deviennent une option intéressante. L'un des problèmes clés liées au développement des VEHs est la conception de la commande de ce type de système complexe, lequel est composé de plusieurs sources et sous-systèmes. En utilisant la Représentation Énergétique Macroscopique (REM) qui est une représentation graphique basée sur l'énergie, une structure de commande peut être déduire directement par inversion du modèle. L'objectif de cette thèse est d'établir une REM commune capable de décrire différentes architectures de VEHs. A partir de cette REM, une structure de commande générale est obtenue. Cette structure de commande peut être utilisée pour l'étude de VEH série, parallèle et mixte, en changent seulement différents valeurs de paramètres. Cette REM permet de mieux comprendre les flux de puissance principaux des différent VEHs. En utilisant une approche descendante, la modélisation et la commande des différent VEHs ont été réalisées de manière générale, même si ces VEHs peuvent être très différents les uns des autres en termes de structure. Le temps requis pour la conception de la commande peut être ainsi considérablement réduit. Qui plus est, avec la même structure de commande, les différents VEHs peuvent être comparés plus facilement. La structure commune a été validée expérimentalement sur un émulateur de véhicule hybride série. Différentes gestions énergétiques plus efficaces de VEHs pourraient être développées et comparées. De ce fait, le coût de fabrication, la consommation de carburant et l'émission de CO2 peuvent être réduites.
Author: Sajjad Ali Syed
Publisher:
ISBN:
Category :
Languages : en
Pages : 181
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Book Description
Currently, Hybrid Electric Vehicles (HEVs) are considered to be a critical part of the future vehicle industry. This is because they allow for decreased fuel consumption and emissions without a decline in performance. HEVs are composed of two or more power sources and can be arranged in various topologies. In this thesis, a series-parallel architecture is chosen for military and garbage trucks. The studied HEVs contain a Double Planetary Geartrain as a Power Split Device (PSD), which makes the system very intricate and complex. Therefore, in this thesis, modeling of studied HEVs with a PSD is done. Later, through the assistance of Energetic Macroscopic Representation (EMR) it is graphically represented and local control structure for both vehicles are deduced.This dissertation also addresses the problem of managing energy of multiple energy sources for the studied HEVs. The Energy Management Strategy (EMS) in application to HEVs encompasses several different disciplines and challenges. Primarily, the challenges lies in managing the energy expenditure, determining the proportional power splits and establishing methods to interface between the systems so as to meet the demands of the vehicle propulsion and other load requirements. In this work, an attempt has been made to provide a new organization of EMS by decomposition in 3 explicit levels for studied vehicles i.e. military and garbage truck.
Author: Simona Onori
Publisher: Springer
ISBN: 1447167813
Category : Technology & Engineering
Languages : en
Pages : 121
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Book Description
This SpringerBrief deals with the control and optimization problem in hybrid electric vehicles. Given that there are two (or more) energy sources (i.e., battery and fuel) in hybrid vehicles, it shows the reader how to implement an energy-management strategy that decides how much of the vehicle’s power is provided by each source instant by instant. Hybrid Electric Vehicles: •introduces methods for modeling energy flow in hybrid electric vehicles; •presents a standard mathematical formulation of the optimal control problem; •discusses different optimization and control strategies for energy management, integrating the most recent research results; and •carries out an overall comparison of the different control strategies presented. Chapter by chapter, a case study is thoroughly developed, providing illustrative numerical examples that show the basic principles applied to real-world situations. The brief is intended as a straightforward tool for learning quickly about state-of-the-art energy-management strategies. It is particularly well-suited to the needs of graduate students and engineers already familiar with the basics of hybrid vehicles but who wish to learn more about their control strategies.
Author: Tiago Pinto
Publisher: Academic Press
ISBN: 0128226668
Category : Business & Economics
Languages : en
Pages : 474
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Book Description
Local Electricity Markets introduces the fundamental characteristics, needs, and constraints shaping the design and implementation of local electricity markets. It addresses current proposed local market models and lessons from their limited practical implementation. The work discusses relevant decision and informatics tools considered important in the implementation of local electricity markets. It also includes a review on management and trading platforms, including commercially available tools. Aspects of local electricity market infrastructure are identified and discussed, including physical and software infrastructure. It discusses the current regulatory frameworks available for local electricity market development internationally. The work concludes with a discussion of barriers and opportunities for local electricity markets in the future. - Delineates key components shaping the design and implementation of local electricity market structure - Provides a coherent view on the enabling infrastructures and technologies that underpin local market expansion - Explores the current regulatory environment for local electricity markets drawn from a global panel of contributors - Exposes future paths toward widespread implementation of local electricity markets using an empirical review of barriers and opportunities - Reviews relevant local electricity market case studies, pilots and demonstrators already deployed and under implementation
Author: Reza N. Jazar
Publisher: Springer Science & Business Media
ISBN: 1461485444
Category : Technology & Engineering
Languages : en
Pages : 1074
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Book Description
This textbook is appropriate for senior undergraduate and first year graduate students in mechanical and automotive engineering. The contents in this book are presented at a theoretical-practical level. It explains vehicle dynamics concepts in detail, concentrating on their practical use. Related theorems and formal proofs are provided, as are real-life applications. Students, researchers and practicing engineers alike will appreciate the user-friendly presentation of a wealth of topics, most notably steering, handling, ride, and related components. This book also: Illustrates all key concepts with examples Includes exercises for each chapter Covers front, rear, and four wheel steering systems, as well as the advantages and disadvantages of different steering schemes Includes an emphasis on design throughout the text, which provides a practical, hands-on approach
Author: National Research Council
Publisher: National Academies Press
ISBN: 0309142393
Category : Law
Languages : en
Pages : 348
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Book Description
Scores of talented and dedicated people serve the forensic science community, performing vitally important work. However, they are often constrained by lack of adequate resources, sound policies, and national support. It is clear that change and advancements, both systematic and scientific, are needed in a number of forensic science disciplines to ensure the reliability of work, establish enforceable standards, and promote best practices with consistent application. Strengthening Forensic Science in the United States: A Path Forward provides a detailed plan for addressing these needs and suggests the creation of a new government entity, the National Institute of Forensic Science, to establish and enforce standards within the forensic science community. The benefits of improving and regulating the forensic science disciplines are clear: assisting law enforcement officials, enhancing homeland security, and reducing the risk of wrongful conviction and exoneration. Strengthening Forensic Science in the United States gives a full account of what is needed to advance the forensic science disciplines, including upgrading of systems and organizational structures, better training, widespread adoption of uniform and enforceable best practices, and mandatory certification and accreditation programs. While this book provides an essential call-to-action for congress and policy makers, it also serves as a vital tool for law enforcement agencies, criminal prosecutors and attorneys, and forensic science educators.
Author: Michael Sterner
Publisher: Springer
ISBN: 3662555042
Category : Technology & Engineering
Languages : en
Pages : 821
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Book Description
The authors of this Handbook offer a comprehensive overview of the various aspects of energy storage. After explaining the importance and role of energy storage, they discuss the need for energy storage solutions with regard to providing electrical power, heat and fuel in light of the Energy Transition. The book’s main section presents various storage technologies in detail and weighs their respective advantages and disadvantages. Sections on sample practical applications and the integration of storage solutions across all energy sectors round out the book. A wealth of graphics and examples illustrate the broad field of energy storage, and are also available online. The book is based on the 2nd edition of the very successful German book Energiespeicher. It features a new chapter on legal considerations, new studies on storage needs, addresses Power-to-X for the chemical industry, new Liquid Organic Hydrogen Carriers (LOHC) and potential-energy storage, and highlights the latest cost trends and battery applications. “Finally – a comprehensive book on the Energy Transition that is written in a style accessible to and inspiring for non-experts.” Franz Alt, journalist and book author “I can recommend this outstanding book to anyone who is truly interested in the future of our country. It strikingly shows: it won’t be easy, but we can do it.” Prof. Dr. Harald Lesch, physicist and television host
Author: H.J. Bergveld
Publisher: Springer Science & Business Media
ISBN: 9401708436
Category : Science
Languages : en
Pages : 311
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Book Description
Battery Management Systems - Design by Modelling describes the design of Battery Management Systems (BMS) with the aid of simulation methods. The basic tasks of BMS are to ensure optimum use of the energy stored in the battery (pack) that powers a portable device and to prevent damage inflicted on the battery (pack). This becomes increasingly important due to the larger power consumption associated with added features to portable devices on the one hand and the demand for longer run times on the other hand. In addition to explaining the general principles of BMS tasks such as charging algorithms and State-of-Charge (SoC) indication methods, the book also covers real-life examples of BMS functionality of practical portable devices such as shavers and cellular phones. Simulations offer the advantage over measurements that less time is needed to gain knowledge of a battery's behaviour in interaction with other parts in a portable device under a wide variety of conditions. This knowledge can be used to improve the design of a BMS, even before a prototype of the portable device has been built. The battery is the central part of a BMS and good simulation models that can be used to improve the BMS design were previously unavailable. Therefore, a large part of the book is devoted to the construction of simulation models for rechargeable batteries. With the aid of several illustrations it is shown that design improvements can indeed be realized with the presented battery models. Examples include an improved charging algorithm that was elaborated in simulations and verified in practice and a new SoC indication system that was developed showing promising results. The contents of Battery Management Systems - Design by Modelling is based on years of research performed at the Philips Research Laboratories. The combination of basic and detailed descriptions of battery behaviour both in chemical and electrical terms makes this book truly multidisciplinary. It can therefore be read both by people with an (electro)chemical and an electrical engineering background.
Author: Sixing Du
Publisher: John Wiley & Sons
ISBN: 1119367239
Category : Science
Languages : en
Pages : 386
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Book Description
An invaluable academic reference for the area of high-power converters, covering all the latest developments in the field High-power multilevel converters are well known in industry and academia as one of the preferred choices for efficient power conversion. Over the past decade, several power converters have been developed and commercialized in the form of standard and customized products that power a wide range of industrial applications. Currently, the modular multilevel converter is a fast-growing technology and has received wide acceptance from both industry and academia. Providing adequate technical background for graduate- and undergraduate-level teaching, this book includes a comprehensive analysis of the conventional and advanced modular multilevel converters employed in motor drives, HVDC systems, and power quality improvement. Modular Multilevel Converters: Analysis, Control, and Applications provides an overview of high-power converters, reference frame theory, classical control methods, pulse width modulation schemes, advanced model predictive control methods, modeling of ac drives, advanced drive control schemes, modeling and control of HVDC systems, active and reactive power control, power quality problems, reactive power, harmonics and unbalance compensation, modeling and control of static synchronous compensators (STATCOM) and unified power quality compensators. Furthermore, this book: Explores technical challenges, modeling, and control of various modular multilevel converters in a wide range of applications such as transformer and transformerless motor drives, high voltage direct current transmission systems, and power quality improvement Reflects the latest developments in high-power converters in medium-voltage motor drive systems Offers design guidance with tables, charts graphs, and MATLAB simulations Modular Multilevel Converters: Analysis, Control, and Applications is a valuable reference book for academic researchers, practicing engineers, and other professionals in the field of high power converters. It also serves well as a textbook for graduate-level students.
Author: Manuela Sechilariu
Publisher: Butterworth-Heinemann
ISBN: 0128037873
Category : Technology & Engineering
Languages : en
Pages : 308
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Book Description
Urban DC Microgrid: Intelligent Control and Power Flow Optimization focuses on microgrids for urban areas, particularly associated with building-integrated photovoltaic and renewable sources. This book describes the most important problems of DC microgrid application, with grid-connected and off-grid operating modes, aiming to supply DC building distribution networks. The book considers direct current (DC) microgrid to supply DC building distribution networks for positive energy buildings; dynamic interactions with the utility grid based on communication with the smart grid; supervisory control systems; and energy management. The global power system is exposed and the DC microgrid system is presented and analyzed with results and discussion, highlighting both the advantages and limitations of the concept. Coverage at the system level of microgrid control as well as the various technical aspects of the power system components make this a book interesting to academic researchers, industrial energy researchers, electrical power and power system professionals. - Provides a strong overview of microgrid modelling - Describes the most important problems of DC microgrid application, with grid-connected and off-grid operating modes, aiming to supply DC building distribution networks - Offers experimental problem examples and results - Includes supervisory control and energy management
