Direct Eigen Control for Induction Machines and Synchronous Motors

Foreword

In past decades there have been numerous proposals for efficient linear or non-linear, control approaches in the continuous-time or discrete-time domains, taking into account not only the system itself with its limitations but also the associated actuators and sensors. The work presented in this book is aimed towards the graduate level as well as for young engineers and researchers. The book is self-contained for AC motor modeling and control, and where the prerequisites are:

• an introduction to mathematical analysis at undergraduate level
• an introduction to AC motors and associated power converters at graduate level
• an introduction to the theory of linear systems in continuous-time and discrete-time domains.

The material that is presented in this book is the outcome of several years of industrial research and development based on state-of-the-art control techniques provided by the research community in the field of alternating current motor control on the one hand and the more general field of automatic control on the other.

For applications such as railways requiring high dynamic control response, it is necessary to use discrete-time control methods in order to master the convergence time such as dead-beat (one-sampling-time response) control in the best cases. Moreover, the sampling time could be considered as an additional degree of freedom when the system is driven to its limits. It is necessary to remind the reader that for AC machines, the control inputs are voltage magnitude ...