This book is a comprehensive resource on the latest research in the field of power electronics and systems. The authors provide a detailed analysis of the complex behavior and stability issues of grid-connected power converters, which are essential for integrating renewable energy sources into the power grid and improving the efficiency and flexibility of the grids operation. The book offers a multidisciplinary approach that combines expertise in circuit modeling, control theory, nonlinear system analysis, and power electronics system design. It covers topics such as bifurcation, nonlinear oscillations, synchronization, and stability of grid-connected power converters. Additionally, it highlights the latest research in these areas, including the development of advanced control strategies that can adapt to changes in the grids operating conditions and mitigate the effects of nonlinear behavior and other stability issues. Complex Behavior of Grid-Connected Power Electronics Systems is a must-read for anyone seeking to develop and implement efficient and reliable grid-connected power converters.