Читать книгу Analysis and Control of Electric Drives - Ned Mohan - Страница 25

This book is in three parts: Part I describes the fundamental concepts required for the study of ac electric machines and drives, Part II describes the steady‐state analysis of ac machines and drives, and Part III describes the dynamic analysis of ac drives and their vector control through simulations, leading to the hardware implementation of vector control. Throughout this book, the analysis leads to simulations using MATLAB/Simulink™ and Workbench of Sciamble™ (www.sciamble.com), a University of Minnesota startup. The simulations in Workbench of Sciamble™ seamlessly lead to hardware implementation, as described throughout the book. These are as follows:

1 Part I: Fundamental ConceptsChapter 2 deals with the modeling of mechanical systems coupled to electric drives, as well as how to determine drive specifications for various types of loads. Chapter 3 describes magnetic concepts and the laws governing electromechanical energy conversion. An introduction to PPUs is presented in Chapter 4. Chapter 5 explains the design of feedback control in vector control of ac drives. As a background to the discussion of ac motor drives, the rotating fields in ac machines are described in Chapter 6 utilizing space vectors. In controlling PPUs, the role of space vector PWM is described in Chapter 7.

2 Part II: Steady‐State AnalysisUsing the space vector theory, the sinusoidal PMAC motor drives are discussed in Chapter 8. Chapter 9 analyzes induction motors and focuses on their basic principles of operation in a steady state. A concise but comprehensive discussion of controlling speed with induction‐motor drives is provided in Chapter 10.

3 Part III: Dynamic AnalysisChapters 11 and 12 lay down the foundation on dq‐based analysis of ac machines and drives. Chapter 13 describes the vector‐control of induction motors. Chapter 14 is on encoder‐less vector control of induction motor drives. Chapter 15 is on doubly fed generators used in wind generators. Direct‐torque control is explained in Chapter 16. The vector control is applied to the surface permanent, and the interior permanent‐magnet motor drives in Chapter 17. The reluctance drives, including stepper‐motors and switched‐reluctance drives, are explained in Chapter 18.