Enhanced Phase-Locked Loop Structures for Power and Energy Applications E-Book

Masoud Karimi-Ghartema

• Herausgeber: John Wiley & Sons
• Kategorie: Wissenschaft und neue Technologien
• Serie: IEEE Press Series on Microelectronic Systems
• Sprache: Englisch

Seitenzahl: 261

Veröffentlichungsjahr: 2014

Beschreibung

Filling the gap in the market dedicated to PLL structures for power systems Internationally recognized expert Dr. Masoud Karimi-Ghartemani brings over twenty years of experience working with PLL structures to Enhanced Phase-Locked Loop Structures for Power and Energy Applications, the only book on the market specifically dedicated to PLL architectures as they apply to power engineering. As technology has grown and spread to new devices, PLL has increased in significance for power systems and the devices that connect with the power grid. This book discusses the PLL structures that are directly applicable to power systems using simple language, making it easily digestible for a wide audience of engineers, technicians, and graduate students. Enhanced phase-locked loop (EPLL) has become the most widely utilized architecture over the past decade, and many books lack explanation of the structural differences between PLL and EPLL. This book discusses those differences and also provides detailed instructions on using EPLL for both single-phase applications and three-phase applications. The book's major topics include: * A basic look at PLL and its standard structure * A full explanation of EPLL * EPLL extensions and modifications * Digital implementation of EPLL * Extensions of EPLL to three-phase structures Dr. Karimi-Ghartemani provides basic analysis that helps readers understand each of the structures presented without requiring complicated mathematical proofs. His book is filled with illustrated examples and simulations that connect theory to the real world, making Enhanced Phase-Locked Loop Structures for Power and Energy Applications an ideal reference for anyone working with inverters, rectifiers, and related technologies.

Leseprobe

ENHANCED PHASE-LOCKED LOOP STRUCTURES FOR POWER AND ENERGY APPLICATIONS

Masoud Karimi-Ghartemani

Mississippi State University

IEEE Press Series on Microelectronic Systems

Copyright © 2014 by The Institute of Electrical and Electronics Engineers, Inc.

Published by John Wiley & Sons, Inc., Hoboken, New Jersey. All rights reserved.Published simultaneously in Canada.

No part of this publication may be reproduced, stored in a retrieval system, or transmitted in any form or by any means, electronic, mechanical, photocopying, recording, scanning, or otherwise, except as permitted under Section 107 or 108 of the 1976 United States Copyright Act, without either the prior written permission of the Publisher, or authorization through payment of the appropriate per-copy fee to the Copyright Clearance Center, Inc., 222 Rosewood Drive, Danvers, MA 01923, [phone], fax [phone], or on the web at www.copyright.com. Requests to the Publisher for permission should be addressed to the Permissions Department, John Wiley & Sons, Inc., 111 River Street, Hoboken, NJ 07030, [phone], fax [phone].

Limit of Liability/Disclaimer of Warranty: While the publisher and author have used their best efforts in preparing this book, they make no representations or warranties with respect to the accuracy or completeness of the contents of this book and specifically disclaim any implied warranties of merchantability or fitness for a particular purpose. No warranty may be created or extended by sales representatives or written sales materials. The advice and strategies contained herin may not be suitable for your situation. You should consult with a professional where appropriate. Neither the publisher nor author shall be liable for any loss of profit or any other commercial damages, including but not limited to special, incidental, consequential, or other damages.

For general information on our other products and services please contact our Customer Care Department with the U.S. at 877-762-2974, outside the U.S. at 317-572-3993 or fax [phone].

Wiley also publishes its books in a variety of electronic formats. Some content that appears in print, however, may not be available in electronic format.

Library of Congress Cataloging-in-Publication Data is available.

ISBN: 9781118795026

To my parents, family and teachers

Preface

Phase-locked loop (PLL) is extensively used in power systems and power electronics for the purposes of synchronization, control, and signal detection and estimation. The significance of the PLL constantly grows with the proliferation of new devices that operate in connection with the utility grid. Restructuring of the power system has widely encouraged the interconnection of distributed generation and storage units to the grid using power electronic interfaces. Generators based on renewable energies such as solar and wind, are increasingly developed and used at low and medium voltage levels. The concept of microgrid to encompass a number of generating, storing, and consuming entities that can operate in both grid-connected and stand-alone modes has become a realizable technology. Digitization of power system and usage of state-of-the-art communication and computer technologies to increase power system reliability and efficiency has brought about the idea of the smart grid. The PLL is a pivotal component of such technologies. The single-phase PLL (which was seldom needed in the traditional power system) is now crucially needed for controlled operation of a single-phase active distribution system and a single-phase microgrid. While having a simple and robust structure for implementations in digital platforms, the PLL provides a stable and accurate reference for synchronization despite the system oscillations and distortions. Another application area of the PLL is in uninterruptible power supply systems. The PLL can also be a competent algorithm for wide area measurement, protection, and control using synchronized phasors. The ability of the PLL to track frequency swings closely and to provide an accurate estimate of signals and parameters makes it highly desirable. The PLL is also capable of measuring power quality phenomena and indices and can be used in the realization of smart meters and similar applications in a smart grid.

Despite the long history of the PLL and many books written on its applications in various engineering fields, there is no single independent book dedicated to the PLL structures suitable for power system and power electronics applications. With the major ongoing restructuring in the power system and the proliferation of new devices, such a book would be of immediate need and significance.

The text presented here summarizes the experiences of the author gained from working with different PLL structures over the past two decades. The text is particularly written for power engineering applications and only discusses the major PLL structures that are directly applicable and are interesting for such applications. It is written in a simple language in order to make it accessible to a wide audience. Specifically, complicated mathematical proofs are avoided. However, the basic analysis that helps understanding and further developments is provided for each structure.

Although many applications are sporadically mentioned in the text, there is no focus on any specific application. This provides a more general outlook to the book, allowing a variety of readers to benefit from it. The application of grid-tie inverters is dealt with in detail due to the growing interest in this technology. The book is primarily intended for graduate students, application engineers, and researchers who work in related areas. It may also be considered as a textbook for an advanced special topic course at the graduate level.

MASOUD KARIMI-GHARTEMANI