Power Electronic Systems

The main aims of power electronic converter systems (PECS) are to control, convert, and condition electrical power flow from one form to another through the use of solid state electronics. This book outlines current research into the scientific modeling, experimentation, and remedial measures for advancing the reliability, availability, system robustness, and maintainability of PECS at different levels of complexity.

This book describes intelligent control and its use in power electronic systems, specifically AC motor drives and uninterruptable power supply (UPS) systems. The book covers both the fundamentals of the subject and its practical applications. From the Foreword by Lofti A. Zadeh, Director ofBerkeley Soft Computing Center, California: 'What is unusual about [this book] is that it starts with a description of more or less classical control techniques; moves on to modern control and state space techniques; addresses in detail the complex issues arising in the analysis and design ofrobust control; takes up digital signal processing controllers; and finally, presents a very insightful exposition of soft computing techniques and their application to advanced control of AC drives and UPS systems.'

Power Processing Circuits Design seamlessly infuses important mathematical models and approaches into the optimization of power processing circuits and linear systems. The work unites a constellation of challenging mathematical topics centered on differential equations, linear algebra and implicit functions, with multiple perspectives from electrical, mathematical and physical viewpoints, including power handling components, power filtering and power regulation. Power applications covered encompass first order RC and RL, second order RLC circuits with periodic drives, constant current source, close-loop feedback practices, control loop types, linear regulator, switch-mode regulator and rotation control. Outlines the physical meaning of differential forms and integral forms in designing circuits for power applications Delivers techniques to set up linear algebraic matrix representations of complex circuits Explores key approaches obtaining steady state and describes methods using implicit functions for close-loop representation Describes how to implement vector representation of rotational driving sources Supplemented by MATLAB implementations

Within this book the fundamental concepts associated with the topic of power electronic control are covered alongside the latest equipment and devices, new application areas and associated computer-assisted methods. *A practical guide to the control of reactive power systems *Ideal for postgraduate and professional courses *Covers the latest equipment and computer-aided analysis.

Control of Power Electronic Converters and Systems examines the theory behind power electronic converter control, including operation, modeling and control of basic converters. The book explores how to manipulate components of power electronics converters and systems to produce a desired effect by controlling system variables. Advances in power electronics enable new applications to emerge and performance improvement in existing applications. These advances rely on control effectiveness, making it essential to apply appropriate control schemes to the converter and system to obtain the desired performance. Discusses different applications and their control Explains the most important controller design methods both in analog and digital Describes different important applications to be used in future industrial products Covers voltage source converters in significant detail Demonstrates applications across a much broader context

References. Problems. IV. POWER ELECTRONIC APPLICATION SYSTEMS. 12. Electric Utility Interface: Power Factor Correction and Static Var Control. Introduction. Electric Utility Distribution System. Passive Filtering. Active Current Shaping: Power Factor Correction. Interface for Bidirectional Power Flow. 3-Phase Utility Interface. Static VAR Compensators. Summary. References. Problems. 13. Converter Control. Introducion. Averaged Model. Linearized Model. State-Space Averaged Model. Feedback Control. Summary. References. Problems. 14. Applications I: Power Supply and.... Introduction. DC Power Supply System. Control of Switch-Mode DC Power Supplies. Protection of DC Power Supplies. Electrical Isolation. Equivalent Series Resistance (ESR). Synchronous Rectifiers. Cross Regulation in Multiple Outputs. Battery Charging Systems. Uninterruptible (AC) Power Supply (UPS). Electronic Lamp Ballast. Induction Heating. Switch-Mode Welding. Electromagnetic Interference Considerations. Summary. References. Problems. 15. Applications II: Motor Drives. Introduction. DC Motor Drives. Induction Motor Drives. Synchronous Motor Drives. Summary. References. Problems. 16. Temperature Control, Protection, and Packaging. Introduction. Temperature Control in Semiconductor Devices. Heat Transfer Basics. Heat Transfer Systems. Static Thermal Model of Heat Transfer Systems. Transient Thermal Impedance. Heat Sink. Surge Voltage Protection. Fault Current Protection. Circuit Layout Techniques. Summary. References. Problems. Appendix A. Review of Basic Principles. Basic Mathematical Methods. Energy and Power. PSpice Simulation. Appendix B. Electromagnetics. Appendix C. Semiconductor Basics. Charge Transport in Homogenous-Structure Semiconductor Devices. Heterogeneous-Structure Devices. Appendix D. Appendix E. Appendix F. Index.

The increased efficiency and quality constraints imposed on electrical energy systems have inspired a renewed research interest in the study of formal approaches to the analysis and control of power electronics converters. Switched systems represent a useful framework for modeling these converters and the peculiarities of their operating conditions and control goals justify the specific classification of “switched electronic systems”. Indeed, idealized switched models of power converters introduce problems not commonly encountered when analyzing generic switched models or non-switched electrical networks. In that sense the analysis of switched electronic systems represents a source for new ideas and benchmarks for switched and hybrid systems generally. Dynamics and Control of Switched Electronic Systems draws on the expertise of an international group of expert contributors to give an overview of recent advances in the modeling, simulation and control of switched electronic systems. The reader is provided with a well-organized source of references and a mathematically-based report of the state of the art in analysis and design techniques for switched power converters. Intuitive language, realistic illustrative examples and numerical simulations help the reader to come to grips with the rigorous presentation of many promising directions of research such as: converter topologies and modulation techniques; continuous-time, discrete-time and hybrid models; modern control strategies for power converters; and challenges in numerical simulation. The guidance and information imparted in this text will be appreciated by engineers, and applied mathematicians working on system and circuit theory, control systems development, and electronic and energy conversion systems design.