Grid Converters for Photovoltaic and Wind Power Systems

Grid converters are the key player in renewable energy integration. The high penetration of renewable energy systems is calling for new more stringent grid requirements. As a consequence, the grid converters should be able to exhibit advanced functions like: dynamic control of active and reactive power, operation within a wide range of voltage and frequency, voltage ride-through capability, reactive current injection during faults, grid services support.

This book explains the topologies, modulation and control of grid converters for both photovoltaic and wind power applications. In addition to power electronics, this book focuses on the specific applications in photovoltaic wind power systems where grid condition is an essential factor.

With a review of the most recent grid requirements for photovoltaic and wind power systems, the book discusses these other relevant issues:
* modern grid inverter topologies for photovoltaic and wind turbines
* islanding detection methods for photovoltaic systems
* synchronization techniques based on second order generalized integrators (SOGI)
* advanced synchronization techniques with robust operation under grid unbalance condition grid filter design and active damping techniques
* power control under grid fault conditions, considering both positive and negative sequences

Grid Converters for Photovoltaic and Wind Power Systems is intended as a coursebook for graduated students with a background in electrical engineering and also for professionals in the evolving renewable energy industry. For people from academia interested in adopting the course, a set of slides is available for download from the website. www.wiley.com/go/grid_converters

This book provides a detailed coverage of power converters for renewable energy systems, so that power produced from these systems can be efficiently integrated into the national grid. The authors cover some general concepts in control theory, explaining different types of controller. Following this, the text goes on to analyse firstly the control of grid converters for photovoltaic, and then wind power systems, looking at system fundamentals, and more specific system control such as maximum point power tracking (MPPT), grid synchronization and monitoring methods, and grid requirement issues. Next, is a more general discussion of grid filters required by grid-connected distributed power generation systems (DPGS), and the interaction between grid converters and the grid. The final chapter examines some new auxiliary functions that may be implemented in DPGS in the future, in order to ensure stability as more power generated by these systems is integrated. Throughout the text, the authors include practical examples, exercises, and simulation models, and an accompanying website sets out further modelling the techniques using Matlab and Simulink environments, and PSIM software.

Grid converters are the key player in renewable energy integration. The high penetration of renewable energy systems is calling for new more stringent grid requirements. As a consequence, the grid converters should be able to exhibit advanced functions like: dynamic control of active and reactive power, operation within a wide range of voltage and frequency, voltage ride-through capability, reactive current injection during faults, grid services support. This book explains the topologies, modulation and control of grid converters for both photovoltaic and wind power applications. In addition to power electronics, this book focuses on the specific applications in photovoltaic wind power systems where grid condition is an essential factor. With a review of the most recent grid requirements for photovoltaic and wind power systems, the book discusses these other relevant issues: modern grid inverter topologies for photovoltaic and wind turbines islanding detection methods for photovoltaic systems synchronization techniques based on second order generalized integrators (SOGI) advanced synchronization techniques with robust operation under grid unbalance condition grid filter design and active damping techniques power control under grid fault conditions, considering both positive and negative sequences Grid Converters for Photovoltaic and Wind Power Systems is intended as a coursebook for graduated students with a background in electrical engineering and also for professionals in the evolving renewable energy industry. For people from academia interested in adopting the course, a set of slides is available for download from the website. www.wiley.com/go/grid_converters