vi
ACKNOWLEDGEMENT
I take this opportunity to express my sincere and heartfelt gratitude
to my research supervisor Dr. P. Renuga, Associate Professor, Department of
Electrical and Electronics Engineering (EEE), Thiagarajar College of
Engineering (TCE), Madurai, for her constant guidance and regular
interaction throughout my research work.
My earnest thanks to the Doctoral committee members,
Dr. N. Ammasai Goundan, Professor, National Institute of Technology,
Trichy, and Dr. K. Thanuskodi, Director, Akshaya College of Engineering
& Tech., Kinathukkadavu, Coimbatore for extending their support during the
work.
I express my deep sense of gratitude to Dr. N. Kamaraj, Head,
Department of EEE, TCE, for providing the facilities to accomplish the
research
work.
I express
my
sincere
and
heartfelt
gratitude
to
Dr. V. Rajasekaran, Head, Department of EEE, P.S.N.A College of
Engineering and Technology (PSNA CET), Dindigul, for his valuable
suggestions.
I extend my sincere thanks to Dr. V. Abhaikumar, Principal, TCE,
and Dr. S. Sakthivel, Principal, PSNA CET, for offering all facilities to carry
out the research work.
Thanks to my friends, research scholars, other teaching faculty and
non-teaching staff members of TCE and PSNA CET for their help during the
research work.
I owe my utmost gratitude to my family members for their
encouragement and support throughout the years of my research.
GERALD CHRISTOPHER RAJ I