Durable and cost-effective, induction power generators have undergone numerous improvements that make them an increasingly attractive option for renewable energy applications, particularly for wind and hydropower generation systems. From fundamental concepts to the latest technologies, Alternative Energy Systems:
Design and Analysis with Induction Generators, Second Edition provides detailed and accurate coverage of all aspects related to the design, operation, and overall analysis of such systems. Placing a greater emphasis on providing clear, precise, and succinct explanations, this second edition features new, revised, and updated content as well as figures, tables, equations, and examples. Each chapter introduces a multi-step, chapter-length problem relating the material to a real application. The solution appears at the end of the chapter, along with additional practice problems and references.
About the Book
In revising this book, we realized that some parts of the text could be shortened, while others could be explained in more detail. This is especially true as it relates to examples, diagrams, problems, and concept development. Incoherent sections found in previous editions, such as drawings, quotations, and diagrams, have been removed. In addition, this revised edition includes suggestions from readers, experts, and students.
This new edition consists of 14 chapters:
- Chapter1 presents several definitions, characteristics of primary power sources, and high lights for selecting the appropriate generator for industrial, commercial, residential, remote, and rural loads.
- Chapter2 presents the steady-state model of induction generators, including the classical steady-state re presentation, parameter measurements, and peculiarities of inter connection to the distribution network.
- Chapter3 describes the transient modeling of induction generators, using a new numerical representation of state-space modeling that allows generalization of parallel generator associations, an important issue for wind farms.
- Chapter4 presents a detailed mathematical description of the performance, voltage regulation, and self-excitation of self-excited induction generators.
- Chapter5 presents the general characteristics of induction generators with respect to torque versus speed, power versus output current, and the relationship between airgap voltage and magnetizing current.
- Chapter6 describes the structural characteristics of induction machines, particularly aspects of generator sizing, design, and manufacturing.
- Chapter7 introduces power electronics equipment, requirements for power injection in to the grid, interfaces with renewable energy systems, and AC-DC, DC-DC, DC-AC, and AC-AC conversion topologies applied to control induction machines used for motoring and power generation purposes.
- Chapter8 describes the basic principles of scalar control of induction motors/generators and how the magnitude of voltage and frequency can be controlled to achieve the appropriate torque and speed.
- Chapter9 introduces vector control techniques for calculating stator current components for torque and flux decoupling for fast transient closed loop response.
- Chapter10 presents modern optimization techniques for peak power tracking control of induction generators, with emphasis on hill climbing control and fuzzy control.
- Chapter11 covers doubly fed induction generators (DFIG) applied to high-power renewable energy systems, an important application for pumped storage, stand-alone, and grid-connected generation, and includes theoretical and practical aspects of DFIG systems applied to high-power renewable energy systems.
- Chapter12 describes the transient response of self-excited induction generators in various environments, steady-state analysis, and simulation approaches for vector control-based induction motor/generator systems.
- Chapter13 deals with the most common applications of induction generators in alternative energy sources, based on the variable speed features of induction generators that allow control of various variables such as frequency, speed, output power, slip factor, voltage tolerance, and reactive power.
- Chapter14 discusses the economic, social, and impact issues associated with alternative energy sources, with investment evaluations and considerations for decision makers.