STUDY NOTES FOR ENGINEERS

           
The book begins by explaining the features of the electric drive system and trends of development in related technologies, as well as the basic structure and operation principles of the electric machine. It also addresses steady state characteristics and control of the machines and the transformation of physical variables of AC machines using reference frame theory in order to provide a proper foundation for the material.
The heart of the book reviews several control algorithms of electric machines and power converters, explaining active damping and how to regulate current, speed, and position in a feedback manner. Seung-Ki Sul introduces tricks to enhance the control performance of the electric machines, and the algorithm to detect the phase angle of an AC source and to control DC link voltages of power converters. Topics also covered are:

• Vector control
• Control algorithms for position/speed sensor-less drive of AC machines
• Methods for identifying the parameters of electric machines and power converters
• The matrix algebra to model a three-phase AC machine in d-q-n axe..