Frequency control as a major function of automatic generation control is
one of the important control problems in electric power system design
and operation, and is becoming more signi?cant today because of the
increasing size, changing structure, emerging new uncertainties,
environmental constraints and the complexity of power systems. In the
last two decades, many studies have focused on damping control and vo-
age stability and the related issues, but there has been much less work
on the power system frequency control analysis and synthesis. While some
aspects of frequency control have been illustrated along with individual
chapters, many conferences and technical papers, a comprehensive and
sensible practical explanation of robust f- quency control in a book
form is necessary. This book provides a thorough understanding of the
basic principles of power system frequency behaviour in wide range of
operating conditions. It uses simple frequency response models, control
structures and mathematical algorithms to adapt modern robust control
theorems with frequency control issue and conceptual exp- nations. Most
developed control strategies are examined by real-time simulations.
Practical methods for computer analysis and design are emphasized. This
book emphasizes the physical and engineering aspects of the power s- tem
frequency control design problem, providing a conceptual understanding
of frequency regulation, and application of robust control techniques.
The main aim is to develop an appropriate intuition relative to the
robust load frequency regulation problem in real-world power systems,
rather than to describe sophisticated mat- matical analytical methods.
