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Books > Professional & Technical > Energy technology & engineering
The advance of variable speed drives systems (VSDs) engineering highlights the need of specific technical guidance provision by electrical machines and drives manufacturers, so that such applications can be properly designed to present advantages in terms of both energy efficiency and expenditure. This book presents problems and solutions related to inverter-fed electrical motors. Practically orientated, the book describes the reasons, theory and analysis of those problems. Various solutions for individual problems are presented together with the complete design process, modelling and simulation examples with MATLAB/Simulink on the companion website. A key focus of Variable Speed AC Drives with Inverter Output Filters is to examine the state variables estimation and motor control structures which have to be modified according to the used solution (filter). In most control systems the structure and parameters are taken into account to make it possible for precise control of the motor. This methodology is able to include modifications and extensions depending on specific control and estimation structures. Highly accessible, this is an invaluable resource for practising R&D engineers in drive companies, power electronics & control engineers and manufacturers of electrical drives. Senior undergraduate and postgraduate students in electronics and control engineering will also find it of value.
This monograph shows the reader how to avoid the burdens of sensor cost, reduced internal physical space, and system complexity in the control of AC motors. Many applications fields-electric vehicles, wind- and wave-energy converters and robotics, among them-will benefit. Sensorless AC Electric Motor Control describes the elimination of physical sensors and their replacement with observers, i.e., software sensors. Robustness is introduced to overcome problems associated with the unavoidable imperfection of knowledge of machine parameters-resistance, inertia, and so on-encountered in real systems. The details of a large number of speed- and/or position-sensorless ideas for different types of permanent-magnet synchronous motors and induction motors are presented along with several novel observer designs for electrical machines. Control strategies are developed using high-order, sliding-mode and quasi-continuous-sliding-mode techniques and two types of observer-controller schemes based on backstepping and sliding-mode techniques are described. Experimental results validate the performance of these observer and controller configurations with test trajectories of significance in difficult sensorless-AC-machine problems. Control engineers working with AC motors in a variety of industrial environments will find the space-and-cost-saving ideas detailed in Sensorless AC Electric Motor Control of much interest. Academic researchers and graduate students from electrical, mechanical and control-engineering backgrounds will be able to see how advanced theoretical control can be applied in meaningful real systems.
This volume summarizes our current knowledge on different biomass-converting enzymes and their potential use in converting biomass into simple sugar to generate bioenergy and other value added co-/by products. It consists of 13 chapters and is divided into three parts: cellulases; hemicellulases; and lignocellulose oxidoreductases. Written by international experts, the contributions offer clear and concise descriptions of both standard and new technologies. It is an invaluable reference resource for undergraduates, post-graduates, researchers and practitioners in the field of microbial enzymes for biofuel and biorefinery applications.
Series-parallel conversion systems, in which multiple standardized converter modules are connected in series or parallel at the input and output sides, to meet the demands of various applications. This book focuses on the control strategies for the series-parallel conversion systems with DC-DC converters and DC-AC inverters as the basic modules, respectively, to achieve input voltage/current sharing and output voltage/current sharing among the constituent modules. The detailed theoretical analysis with design examples and experimental validations are presented. This book is essential and valuable reference for graduate students and academics majoring in power electronics and engineers engaged in developing DC-DC converters, DC-AC inverters and power electronics transformers.
This book introduces readers to the status quo and recent advances in China's low-carbon development. From the evolution of human civilization, to the proposal of low-carbon concepts, up to the choice of China's low-carbon path, the book provides a comprehensive review of low-carbon development, while also elaborating on the core concept, goals and methods. In addition, it addresses a series of questions and issues closely tied to today's social development, such as: "Why is it so vital to pursue low-carbon development?" and "How can China implement low-carbon development?" Accordingly, readers will gain a better grasp of low-carbon development, including low-carbon production and low-carbon lifestyles.
This volume of the Lecture Notes in Mobility series contains papers written by speakers and poster presenters at the 21st International Forum on Advanced Microsystems for Automotive Applications (AMAA 2017) "Smart Systems Transforming the Automobile" that was held in Berlin, Germany in September 2017. The authors report about recent breakthroughs in electric and electronic components and systems, driver assistance and vehicle automation as well as safety and testing. Furthermore, legal aspects and impacts of connected and automated driving are covered. The target audience primarily comprises research experts and practitioners in industry and academia, but the book may also be beneficial for graduate students alike.
"Renewable Energy Integration" is a ground-breaking new
resource, the first to offer a distilled examination of the
intricacies of integrating renewables into the power grid and
electricity markets. It offers informed perspectives from
internationally renowned experts on the challenges to be met, and
solutions based on demonstrated best practices developed by
operators around the world. The book's focus on practical
implementation of strategies provides real-world context for
theoretical underpinnings and the development of supporting policy
frameworks. The book considers a myriad of wind, solar, wave and
tidal integration issues, thus ensuring that grid operators with
low or high penetration of renewable generation can leverage the
victories achieved by their peers. "Renewable Energy Integration"
highlights, carefully explains, and illustrates the benefits of
advanced technologies and systems for coping with variability,
uncertainty, and flexibility.
"Biorefineries" outlines the processes and steps to successfully
scale up production of two types of biofuels, butanol and ethanol,
from cellulosic residues for commercial purposes. It covers
practical topics, including biomass availability, pretreatment,
fermentation, and water recycling, as well as policy and economic
factors. This reflects the unique expertise of the editor team,
whose backgrounds range from wood and herbaceous feedstocks to
process economics and industrial expertise. The strategies
presented in this bookhelp readers to design integrated and
efficient processes to reduce the cost of production and achieve an
economically viable end product
This book presents a selection of new insights in understanding and mitigating impacts on wildlife and their habitats. Topics such as, species behaviour and responses; collision risk and fatality estimation; landscape features and gradients, are considered. Other chapters in the book cover the results of current research on mitigation; compensation; effectiveness of measures; monitoring and long-term effects; planning and siting. Examples are given of current research on shutdown on demand and curtailment algorithms. By identifying what we have learned so far, and which predominate uncertainties and gaps remain for future research, this book contributes to the most up to date knowledge on research and management options. This book includes presentations from the Conference on Wind Energy and Wildlife impacts (CWW15), March 2015, hosted by the Berlin Institute of Technology, which offered a platform to national and international participants to showcase the current state of knowledge in wind energy's wildlife implications.
This book gathers papers presented and discussions held at the Conference on Wind Energy and Wildlife Impacts in Melbourne, Australia on 9th October 2012. The purpose of the conference was to bring together researchers, industry, consultants, regulators and Non-Government Organizations to share the results of studies into wind farm and wildlife investigations in Australia and New Zealand. The aim was to further networking and communication between these groups. The conference discussed key issues and areas for future investigation, with the intention of developing consistencies in research and management. Like the Conference, the book showcases current research and management in the field of wind farms and wildlife in Australia and New Zealand; establishes consistencies in research and management; and highlights areas in need of further examination. The papers in these Proceedings are presented in two session topics. The first covers "Investigations and assessment of new wind farms" and the second, "Monitoring, mitigation and offsets." The Proceedings then summarize the panel discussions held at the end of the conference. The themes include improving pre- and post-construction survey design; identifying key knowledge gaps and research priorities; uncertainties and errors in data sets and analysis; creating opportunities to share knowledge; and assessing cumulative impacts across multiple sites.
The book reports on advanced theories and methods in two related engineering fields: electrical and electronic engineering, and communications engineering and computing. It highlights areas of global and growing importance, such as renewable energy, power systems, mobile communications, security and the Internet of Things (IoT). The contributions cover a number of current research issues, including smart grids, photovoltaic systems, wireless power transfer, signal processing, 4G and 5G technologies, IoT applications, mobile cloud computing and many more. Based on the proceedings of the first International Conference on Emerging Trends in Electrical, Electronic and Communications Engineering (ELECOM 2016), held in Voila Bagatelle, Mauritius from November 25 to 27, 2016, the book provides graduate students, researchers and professionals with a snapshot of the state-of-the-art and a source of new ideas for future research and collaborations.
Not only enables readers to include radiation as part of their design and analysis but also appreciate the radiative transfer processes in both nature and engineering systems. Offers two distinguishing features--a whole chapter devoted to the classical dispersion theory which lays a foundation for the discussion of radiative properties presented throughout and a detailed description of particle radiative properties, including real particle size distribution effects. Presents numerous realistic and instructive illustrations and problems involving current topics such as planetary heat transfer, satellite thermal control, atmospheric radiation, radiation in industrial and propulsion combustion systems and more.
This book deals with the challenge of exploiting ambient vibrational energy which can be used to power small and low-power electronic devices, e.g. wireless sensor nodes. Generally, particularly for low voltage amplitudes, low-loss rectification is required to achieve high conversion efficiency. In the special case of piezoelectric energy harvesting, pulsed charge extraction has the potential to extract more power compared to a single rectifier. For this purpose, a fully autonomous CMOS integrated interface circuit for piezoelectric generators which fulfills these requirements is presented. Due to these key properties enabling universal usage, other CMOS designers working in the field of energy harvesting will be encouraged to use some of the shown structures for their own implementations. The book is unique in the sense that it highlights the design process from scratch to the final chip. Hence, it gives the designer a comprehensive guide of how to (i) setup an appropriate harvester model to get realistic simulation results, (ii) design the integrated circuits for low power operation, (iii) setup a laboratory measurement environment in order to extensively characterize the chip in combination with the real harvester and finally, (iv) interpret the simulation/measurement results in order to improve the chip performance. Since the dimensions of all devices (transistors, resistors etc.) are given, readers and other designers can easily re-use the presented circuit concepts.
The present book maximizes reader insights into the current and future roles to be played by different types of renewable energy sources and nuclear energy for the purpose of electricity generation in the European region as a whole and in a select group of European countries specifically. This book includes detailed analysis of the different types of renewable energy sources available in different European countries; the pros and cons of the use of the different types of renewables and nuclear energy for electricity generation; which energy options are available in the different European countries to expand their energy sector in the coming years; the impact on the climate and the environment; levels of production and consumption and the level of electricity generated by these energy sources, amongst others. Designed to inform government officials, economists, scientists and the private and public power industry of the key issues surrounding the future role of different renewable energy sources and nuclear energy in the production of electricity within the European region, this book will also describe in detail the evolution of the electrical energy sector in the chosen European region and the problems that several countries are now experiencing in the face of increasing demand for electricity.
This book presents an investigative approach to globalization-driving technologies that efficiently deliver ubiquitous, last-mile, broadband internet access to emerging markets and rural areas. Research has shown that ubiquitous internet access boosts socio-economic growth through innovations in science and technology, and has a positive effect on the lives of individuals. Last-mile internet access in developing countries is not only intended to provide areas with stable, efficient, and cost-effective broadband capabilities, but also to encourage the use of connectivity for human capacity development. The book offers an overview of the principles of various technologies, such as light fidelity and millimeter-wave backhaul, as last-mile internet solutions and describes these potential solutions from a signal propagation perspective. It also provides readers with the notional context needed to understand their operation, benefits, and limitations, and enables them to investigate feasible and tailored solutions to ensure sustainable infrastructures that are expandable and maintainable.
This monograph adresses the challenge of the environmental assessment of leightweight electric vehicles. It poses the question whether the use of lightweight materials in electric vehicles can reduce the vehicles' environmental impact and compares the environmental performance of a lightweight electric vehicle (LEV) to other types of vehicles. The topical approach focuses on methods from life cycle assessment (LCA), and the book concludes with a comprehensive concept on the environmental assessment of LEVs. The target audience primarily comprises LCA practitioners from research institutes and industry, but it may also be beneficial for graduate students specializing in the field of environmental assessment.
The new edition of this book incorporates the recent remarkable changes in electric power generation, transmission and distribution. The consequences of the latest development to High Voltage (HV) test and measuring techniques result in new chapters on Partial Discharge measurements, Measurements of Dielectric Properties, and some new thoughts on the Shannon Theorem and Impuls current measurements. This standard reference of the international high-voltage community combines high voltage engineering with HV testing techniques and HV measuring methods. Based on long-term experience gained by the authors the book reflects the state of the art as well as the future trends in testing and diagnostics of HV equipment. It ensures a reliable generation, transmission and distribution of electrical energy. The book is intended not only for experts but also for students in electrical engineering and high-voltage engineering.
Until now the topic of gas dynamics has been included as a section in comprehensive textbooks on physical chemistry, or discussed at too high a level for undergraduate or graduate students. This book, based on courses given by the author in several countries, aims to fill this gap. To make the subject more accessible to students, there is a very strong emphasis on current applications of the theory. Part I introduces the kinetic theory of gases with relevance to molecular energies and intermolecular forces. Part II focuses on how these theories are used to explain real techniques and phenomena involving gases, allowing students to answer questions such as: 'How does a Laser work?' and 'What is a shock wave?' By stressing the practical implications, the book explains the theory of gas dynamics in a highly readable and comprehensible manner.
This book sheds new light on how microbes can be used as effective and sustainable resources to produce green energy in the form of biogas, algal diesel, ethanol, hydrogen and direct electricity. It discusses topics such as microbial energy conversion technologies, including ethanol production by microbial catalytic reaction, biomethanization, biodiesel from microalgae, microbial fuel cells, and the microbiological production of hydrogen. The book will inspire scientists to find new approaches to meet local energy demands with the help of sustainable microbial resources available in and around a given location.
This book reviews efforts to produce chemicals and fuels from forest and plant products, agricultural residues and more. Algae can potentially capture solar energy and atmospheric CO2; the book details needed research and legislative initiatives.
"Advances in Heat Transfer" fills the information gap between
regularly scheduled journals and university-level textbooks by
providing in-depth review articles over a broader scope than in
journals or texts. The articles, which serve as a broad review for
experts in the field, will also be of great interest to
non-specialists who need to keep up-to-date with the results of the
latest research.This serialis essential reading for all mechanical,
chemical and industrial engineers working in the field of heat
transfer, graduate schools or industry.
This book presents breakthroughs in the design of Wireless Energy Harvesting (WEH) networks. It bridges the gap between WEH through radio waves communications and power transfer, which have largely been designed separately. The authors present an overview of the RF-EHNs including system architecture and RF energy harvesting techniques and existing applications. They also cover the idea of WEH in novel discoveries of information, the theoretical bounds in WEH, wireless sensor networks, usage of modern channel coding together with WEH, energy efficient resource allocation mechanisms, distributed self-organized energy efficient designs, delay-energy trade-off, specific protocols for energy efficient communication designs, D2D communication and energy efficiency, cooperative wireless networks, and cognitive networks.
This book focuses on Renewable Energy (RE) governance - the institutions, plans, policies and stakeholders that are involved in RE implementation - and the complexities and challenges associated with this much discussed energy area. Whilst RE technologies have advanced and become cheaper, governance schemes rarely support those technologies in an efficient and cost-effective way. To illustrate the problem, global case-studies delicately demonstrate successes and failures of renewable energy governance. RE here is considered from a number of perspectives: as a regional geopolitical agent, as a tool to meet national RE targets and as a promoter of local development. The book considers daring insights on RE transitions, governmental policies as well as financial tools, such as Feed-in-Tariffs; along with their inefficiencies and costs. This comprehensive probing of RE concludes with a treatment of what we call the "Mega-What" question - who is benefitting the most from RE and how society can get the best deal? After reading this book, the reader will have been in contact with all aspects of RE governance and be closer to the pulse of RE mechanisms. The reader should also be able to contribute more critically to the dialogue about RE rather than just reinforce the well-worn adage that "RE is a good thing to happen". |
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