advanced electric drives analysis control and modeling using matlab simulink pdf
This textbook follows the treatment of electric machines and drives
in my earlier textbook, Electric Machines and Drives: A First Course,
published by Wiley.
My attempt in this book is to present the analysis, control, and modeling of electric machines as simply and concisely as possible, such that it can easily be covered in one semester graduate-level course. To do so, I have chosen a two-step approach: first, provide a “physical” picture without resorting to mathematical transformations for easy visualization, and then confirm this physics-based analysis mathematically.
The “physical” picture mentioned above needs elaboration. Most
research literature and textbooks in this field treat dq-axis transformation of a-b-c phase quantities on a purely mathematical basis, without relating this transformation to a set of windings, albeit hypothetical, that can be visualized. That is, we visualize a set of hypothetical
dq windings along an orthogonal set of axes and then relate their currents and voltages to the a-b-c phase quantities.. This discussion followsseamlessly from the treatment of space vectors and the equivalent winding representations in steady state in the previous course and the
textbook mentioned earlier.For discussion of all topics in this course, computer simulations are
For this purpose, I have chosen MATLAB/Simulink® for
the following reasons: a student-version that is more than sufficient
for our purposes is available at a very reasonable price, and it takes
extremely short time to become proficient in its use. Moreover, this
same software simplifies the development of a real-time controller of
drives in the hardware laboratory for student experimentation—such
a laboratory using 42-V machines is developed using digital control and
promoted by the University of Minnesota. The MATLAB and Simulink
files used in examples are included on the accompanying website .
As a final note, this textbook is not intended to cover power electronics and control theory. Rather, the purpose of this book is to analyze electric machines in a way that can be interfaced to well-known power electronic converters and controlled using any control scheme, the
simplest being proportional-integral control, which is used in this textbook.