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This book examines a number of topics, mainly in connection with advances in semiconductor devices and magnetic materials and developments in medium and large-scale renewable power plant technologies, grid integration techniques and new converter topologies, including advanced digital control systems for medium-voltage networks. The book’s individual chapters provide an extensive compilation of fundamental theories and in-depth information on current research and development trends, while also exploring new approaches to overcoming some critical limitations of conventional grid integration technologies. Its main objective is to present the design and implementation processes for medium-voltage converters, allowing the direct grid integration of renewable power plants without the need for step-up transformers.
A concise and hands-on overview of medium voltage direct current (MVDC) technology for electric power grids, written by international experts with broad experience. The book covers fundamentals, converters, transformers and control for both stationary and mobile applications.
This book focuses on the latest research and developments in photovoltaic (PV) power plants, and provides extensive coverage of fundamental theories, current research and developmental activities, and new approaches intended to overcome a number of critical limitations in today’s grid integration technologies. The design and implementation process for large-scale solar PV power plants is introduced. The content provided will actively support the development of future renewable power plants and smart grid applications. The book will be of interest to researchers, professionals and graduate students in electrical and electronics fields seeking to understand the related technologies involved in PV power plants.
The first book of its kind, Power Converters and AC Electrical Drives with Linear Neural Networks systematically explores the application of neural networks in the field of power electronics, with particular emphasis on the sensorless control of AC drives. It presents the classical theory based on space-vectors in identification, discusses control of electrical drives and power converters, and examines improvements that can be attained when using linear neural networks. The book integrates power electronics and electrical drives with artificial neural networks (ANN). Organized into four parts, it first deals with voltage source inverters and their control. It then covers AC electrical drive control, focusing on induction and permanent magnet synchronous motor drives. The third part examines theoretical aspects of linear neural networks, particularly the neural EXIN family. The fourth part highlights original applications in electrical drives and power quality, ranging from neural-based parameter estimation and sensorless control to distributed generation systems from renewable sources and active power filters. Simulation and experimental results are provided to validate the theories. Written by experts in the field, this state-of-the-art book requires basic knowledge of electrical machines and power electronics, as well as some familiarity with control systems, signal processing, linear algebra, and numerical analysis. Offering multiple paths through the material, the text is suitable for undergraduate and postgraduate students, theoreticians, practicing engineers, and researchers involved in applications of ANNs.
This book presents various computationally efficient component- and system-level design optimization methods for advanced electrical machines and drive systems. Readers will discover novel design optimization concepts developed by the authors and other researchers in the last decade, including application-oriented, multi-disciplinary, multi-objective, multi-level, deterministic, and robust design optimization methods. A multi-disciplinary analysis includes various aspects of materials, electromagnetics, thermotics, mechanics, power electronics, applied mathematics, manufacturing technology, and quality control and management. This book will benefit both researchers and engineers in the field of motor and drive design and manufacturing, thus enabling the effective development of the high-quality production of innovative, high-performance drive systems for challenging applications, such as green energy systems and electric vehicles.
Summary of International Energy Research and Development Activities 1974–1976 is a directory of energy research and development projects conducted in various countries such as Canada, Italy, Germany, France, Sweden, and the United Kingdom between 1974 and 1976. A limited number of projects sponsored by international organizations such as the International Atomic Energy Agency are also included. This directory consists of nine chapters and opens with a section on organic sources of energy such as coal, oil and gas, peat, hydrocarbons, and non-fossil organic sources. The next sections focus on thermonuclear energy and plasma physics; fission sources and energy production; geophysical energy sources; conversion technology; and environmental aspects of energy conversion and use. Energy transport, transmission, utilization, and conservation are also covered. The final chapter deals with energy systems and other energy-related research on subjects ranging from car sharing and urban passenger transport to nuclear power plants, energy supply and demand models, and high-power molecular lasers. This monograph will be a valuable resource of information for those involved in energy research and development.
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1.0.1 This Code is designed to guarantee safety, reliability, adaptability, economy and advanced technology in metro design. 1.0.2 This Code is applicable to new metro engineering design adopting steel wheel and steel track system. This code can be referred to rebuilt and extended metro engineering and those whose the highest running speed exceeds 100km/h, as well as urban rail transit of other types. 1.0.3 Metro engineering design must comply with general urban planning and urban rail transit network planning approved by competent governmental authorities. 1.0.4 Under the precondition that metro engineering has satisfied requirement of system safety, function and environment, aerial defence requirement can be determined by competent municipal authorities according to concrete conditions. 1.0.5 Design period of metro engineering shall be divided into three stages, such as preliminary stage, short-term stage and long-term stage. The preliminary stage of metro engineering shall be completed for train operation within 3 years, and short-term stage shall be within 10 years and long-term stage shall be within 25 years. 1.0.6 Construction scale and equipment capacity of metro engineering as well as area of land occupied by depot and stabling yard shall be determined according to forecasted long- term passenger flow volume and passing capacity of train. Design of engineering and configuration that can be constructed by stages shall consider by-stage extension and setting. 1.0.7 Design service life of main metro structure shall be 100 years. 1.0.8 Metro line shall adopt right driving and double line mode, and 1435mm standard gauge shall be adopted. 1.0.9 Metro line must adopt fully-close mode, and operation is high-density and depot- grouping operations are recommended to be adopted. The maximum operation capacity of long-term design is recommended to adopt 40 pairs of train per hour, but shall not be less than 30 pairs of train. 1.0.10 Train number of each group in preliminary, short-term and long-term stages shall be determined according to forecasted passenger flow volume, allowable passenger number of train and designed density of train flow separately. Allowable passenger number of train shall be the total number of seat number on train and number of passengers who stand in train. Allowable passenger number at free area in train shall be 6/m2. 1.0.11 Metro depot shall be designed according to line network planning. According to concrete conditions, one depot can be set on each line or one depot can be shared by several lines. Where length of one line exceeds 20km, extra stabling yard can be set at appropriate places according to operation requirements. 1.0.12 Convenient travel change shall be adopted at crosses among metro lines and other rail transit lines. Travel change between metro lines and other general ground traffic lines is recommended to consider uniform planning. 1.0.13 During design of shallowly-embedded and overhead ground wires, measures shall be adopted to reduce noise and shake and to avoid influence on biological environment, and shall comply with emission provisions of applicable national standards. The emission, sewage and solid waste discharged from the metro system shall meet the relevant discharge standards of the nation. 1.0.14 Determination of modes and quantity of ground and overhead metro devices shall consider influences on urban landscape and coordination with ambient environments. 1.0.15 Earthquake protection intensity shall be determined according to earthquake safety evaluation approved by competent authorities of local government. 1.0.16 Ground and overhead metro engineering crossing and adjacent to rivers shall be designed according to 1/100 flood frequency standard. Metro engineering crossing rivers and lakes shall have flood-proof gate or adopt other flood-proof measures at appropriate positions at ends of relevant water area. 1.0.17 Metro design shall gradually realize electromechanical equipment integrated automation centralized on train travel direction and train operation. 1.0.18 Selection of metro electromechanical equipments and trains shall consider standar- dization and series, and China-made equipments are recommended to be adopted. 1.0.19 During metro design, measures shall be adopted to reduce engineering cost and operation cost, but metro safety, reliability and adaptability shall not be affected. 1.0.20 In addition to provisions prescribed herein, metro design shall also comply with relevant provisions of the current national compulsive standards.
This book covers the various aspects of solar photovoltaic systems including measurement of solar irradiance, solar photovoltaic modules, arrays with MATLAB implementation, recent MPPT techniques, latest literature of converter design (with MATLAB Simulink models), energy storage for PV applications, balance of systems, grid integration of PV systems, PV system protection, economics of grid connected PV system and system yield performance using PV system. Challenges, issues and solutions related to grid integration of solar photovoltaic systems are also be dealt with.