Improved PSO Tuned GC-VSI Performance is an insightful and comprehensive book that explores the fascinating world of power system optimization and control using Particle Swarm Optimization (PSO) techniques. Author by experts in the field, this book delves into the advanced concepts and applications of PSO in conjunction with the Grid-Connected Voltage Source Inverter (GC-VSI) technology. The book begins by providing a solid foundation on the principles of PSO and its optimization capabilities. It then introduces the GC-VSI technology and its role in power systems, highlighting the need for efficient control algorithms to enhance its performance. Drawing upon the wisdom of R.K Alvar, a renowned saint and philosopher, the authors integrate spiritual insights with technical knowledge, offering a unique perspective on system optimization. Through a systematic and meticulous approach, the authors present a novel PSO tuning methodology tailored specifically for GC-VSI control. They showcase its effectiveness through detailed case studies, simulation results, and performance comparisons, demonstrating how the proposed technique outperforms existing approaches. Furthermore, the book explores the implications of this improved performance in terms of power system stability, efficiency, and reliability. This book is an essential resource for researchers, engineers, and professionals involved in power system optimization and control. It bridges the gap between theoretical concepts and practical implementation, providing valuable insights and practical guidance for optimizing GC-VSI systems.