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May 10, 2017

EBOOK - Analysis of Synchronous Machines Second Edition (T.A. Lipo)


EBOOK - Tìm hiểu về động cơ đồng bộ - Tác giả: T.A. Lipo (608 Trang).

The material in this book has evolved from a course taught yearly to senior/graduate students entitled “Theory and Control of Synchronous Machines” at the University of Wisconsin. Begun in 1980, the essence of the course material has not changed substantially.
However, the means by which the course is taught has changed dramatically with the evolution of computing tools. The ready availability of MATLAB® and MATHCAD® has rendered many of the traditional methods of problem solving, such as analog simulation, FORTRAN programming, constructional phasor  diagrams  and  so  forth,  to be mere anecdotes. As a result of these powerful tools, over the years material has been increasingly added to challenge the student and provide a deeper appreciation of the underlying theory of the subject.

In particular, the material contained in Chapters 8–11 is rarely included in an introductory course and, if desired, could easily be omitted from a 3-credit course on this subject. These chapters are typically presented by the author as the background material for a lengthy “class problem” near the end of the semester which serves to cap the student’s learning experience. I might add, with some delight, that these computational tools have even added to the “fun” of learning a challenging new subject

Chapter 1  Winding Distribution in an Ideal Machine................................... 1
1.1 Introduction..........................................................................................1
1.2 Winding Function.................................................................................2
1.3 Calculation of the Winding Function...................................................8
1.4 Multipole Winding Configurations....................................................22
1.5 Inductances of an Ideal Doubly Cylindrical Machine........................25
1.6 Calculation of Winding Inductances..................................................29
1.7 Mutual Inductance Calculation—An Example..................................32
1.8 Winding Functions for Multiple Circuits...........................................39
1.9 Analysis of a Shorted Coil—An Example.........................................46
1.10 General Case for C Circuits...............................................................49
1.11 Winding Function Modifications for Salient-Pole Machines............53
1.12 Leakage Inductances of Synchronous Machines...............................64
1.12.1Synchronous Machine Stator.................................................64
1.12.2Synchronous Machine Rotor..................................................69
1.13 Practical Winding Design...................................................................70
1.14 Conclusion..........................................................................................75
1.15 References..........................................................................................75
Chapter 2  Reference Frame Theory .............................................................77
2.1 Introduction........................................................................................77
2.2 Rotating Reference Frames................................................................78
2.3 Transformation of Three-Phase Circuit Variables to a Rotating
Reference Frame  ..............................................................................81
2.3.1 Vector Approach Applied to r–L Circuits..............................81
2.3.2 Transformation Equations......................................................84
2.3.3 System Equations in the d–q–n Coordinate System..............92
2.3.4 Power Flow in the d–q–n Equivalent Circuits.......................95
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