Meral Altınay was born in Kocaeli, Turkey, in 1972. She received the M.Sc. and Ph.D. degrees from Kocaeli University, Kocaeli, Turkey, in 1998 and 2005. Since 2006, she has been an Assistant Professor with the Faculty of Technical Education, Kocaeli University. Her major fields of interest include modeling and control of power converters, power quality and nonlinear control.
A trend of investigation of Nonlinear Control Systems has been present over the last few decades. As a result the methods for its analysis and design have improved rapidly. This book includes nonlinear design topics such as Feedback Linearization, Lyapunov Based Control, Adaptive Control, Optimal Control and Robust Control. All chapters discuss different applications that are basically independent of each other. The book will provide the reader with information on modern control techniques and results which cover a very wide application area. Each chapter attempts to demonstrate how one would apply these techniques to real-world systems through both simulations and experimental settings.
Go to the bookPart of the book: Applications of Nonlinear Control
In this chapter, firstly, converter types of switched reluctance motor (SRM) are described. Current control structure of SRM, which has six stator and four rotor poles, over an asymmetric bridge converter, is also explained. While feeding SRM by an AC grid, grid voltages have to be converted to DC voltage; to realize this conversion, in order to obtain high power factor and sinusoidal grid current, power factor correction (PFC) circuits must be used. In this study, an asymmetric bridge converter of SRM is fed by three‐phase PFC boost converter that consists of uncontrolled diode rectifier and DC‐DC boost converter with high frequency operation. PFC boost converter is controlled by nonlinear control algorithm. By means of the simulations that are conducted by MATLAB/Simulink, grid voltage and current, current harmonics of each phase, three‐phase currents of phases, flux, and current of SRM are presented. Simulation results show that proposed SRM that is fed by three‐phase PFC boost converter system gives the desired performance, for both grid and SRM side.
Part of the book: Switched Reluctance Motor