Power electronics has emerged as one of the most influential disciplines in modern electrical engineering, serving as the technological foundation for efficient energy conversion, intelligent motor control, renewable energy integration, smart grids, and electric transportation systems. Simultaneously, electrical drives have evolved into indispensable components of industrial automation, manufacturing processes, and advanced mobility solutions. The convergence of these domains has transformed the way electrical energy is generated, controlled, transmitted, and utilized across a wide spectrum of applications. Power Electronics and Electrical Drives has been developed to provide a structured and comprehensive understanding of the principles, devices, converters, control techniques, and applications that define this rapidly advancing field. The book presents a balanced treatment of fundamental concepts and emerging technologies, enabling readers to build a strong theoretical foundation while appreciating practical engineering implementations. The text begins with an introduction to power semiconductor devices and converter circuits, followed by detailed discussions on rectifiers, choppers, inverters, and AC–AC converters. Subsequent chapters explore the dynamics and control of electrical drives, including DC and AC motor drive systems. High-voltage gearbox systems, FACTS devices, power quality enhancement, renewable energy conversion, energy storage interfaces, and electric cars are modern uses. Clear presentations, precise organization, and application-based learning are emphasised. For undergraduate and postgraduate students, professors, researchers, and professional engineers seeking a compact power electronics and drive technology reference. This book should improve electrical energy system development.