دانلود کتاب تحلیل ماشین‌های الکتریکی و سیستم‌های محرکه

This book is written for graduate students and engineers interested in machines and drives analysis. Chapter 1 covers some basic concepts that are common to books in this area. This fourth edition differs from previous editions in several ways. For example, the transformation for both the q and d variables is obtained from the expression of the rotating magnetomotive force or mmf. This is a very straightforward approach that provides an analytic origin of the transformation. Also, the analysis of each machine is focused on motor action to set the stage for electric drives, although generator action is considered in the case of the synchronous machine. Also, since for analysis purposes the stators of the AC machines considered in this text are the same, the stators are considered once in Chapter 2 rather than repeating the analysis for each machine. However, the rotors are different and are treated separately for each machine. This reduces the work considerably. The induction machine is considered in Chapter 3.Most induction motors have squirrel-cage rotors. However, if the stator has sinusoidally distributed windings, the rotor may also be considered as having sinusoidally distributed windings even though the rotor may consist of solid bars. The transformation of the rotor variables to the q and d axes differs only in that the rotor windings are rotating relative to the stator. The permanent-magnet AC machine and the synchronous generator are considered in Chapters 4 and 5, respectively. In Chapter 4, we treat the brushless DC machine with Ld = Lq. Three different values of angle between Ṽ as and Ẽ a, or 𝜙v, are considered. These are: 𝜙v = 0, which is the most common operating mode, 𝜙v = 𝜙v,MT/V or maximum torque per volt, and 𝜙v = 𝜙v,MT/A or maximum torque per ampere. In this case, the permanent-magnet rotor is considered to be magnetized sinusoidally. The first part of Chapter 5 is devoted tomotor action of a synchronous machine. The second part is devoted to generator action with positive current assumed out of the machine. This latter mode of operation was treated by Park in his classic paper written in 1929. The basic analysis of AC machines covered in this text ends with Chapter 5. Power systems engineers could continue with Chapters 6, 7, and 8. The drives engineer would not cover these chapters, but would skip to Chapters 10 through 14, and would likely omit some of the material in Chapter 5. In Chapter 6, the concept of neglecting stator transients is treated. This chapter would be of most interest to the power systems engineer since it deals with the basis of transient stability programs used in stability studies for power systems. Both power systems and drives engineers could find Chapter 9 interesting. Drives engineerswouldwant to study Chapter 10, as it describes themost commonly used modulation strategies. Chapter 11 deals with DC drives. This chapter is brief but relevant to electric drive engineering. In Chapter 12, the torque control of permanent-magnet AC and synchronous reluctance machines are considered. The analysis of the permanent-magnet machine is similar to the material in Chapter 4. The difference is that Ld ≠Lq and a reluctance torque exists. The parameters of the machine considered are representative of electric drive motors used in hybrid and electric vehicles. The synchronous reluctance machine is considered with the permanent magnets removed, whereby only a reluctance torque exists. Synchronous reluctance machines are also considered as viable candidates as electric drive motors in hybrid and electric vehicles. It is shown that with power-electronic-based current control, the electric transients are so fast that they may be neglected when considering the mechanical dynamics. Induction motor control is considered in Chapter 13, including the volt-perhertz, constant-slip, and field-oriented control methods. Each is considered in substantial detail. Finally, the control of permanent-magnet AC machines is considered in Chapter 14. Although this is a graduate text, the first six or seven chapters could be used at the senior-level with the remaining chapters used as a graduate text.