1st Edition

Wind Energy Systems
Solutions for Power Quality and Stabilization

ISBN 9781138076129
Published April 6, 2017 by CRC Press
287 Pages 140 B/W Illustrations

USD $84.95

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Book Description

Unlike conventional power plants, wind plants emit no air pollutants or greenhouse gases—and wind energy is a free, renewable resource. However, the induction machines commonly used as wind generators have stability problems similar to the transient stability of synchronous machines. To minimize power, frequency, and voltage fluctuations caused by network faults or random wind speed variations, control mechanisms are necessary. Wind Energy Systems: Solutions for Power Quality and Stabilization clearly explains how to solve stability and power quality issues of wind generator systems.

Covering fundamental concepts of wind energy conversion systems, the book discusses several means to enhance the transient stability of wind generator systems. It also explains the methodologies for minimizing fluctuations of power, frequency, and voltage.

Topics covered include:

  • An overview of wind energy and wind energy conversion systems
  • Fundamentals of electric machines and power electronics
  • Types of wind generator systems
  • Challenges in integrating wind power into electricity grids
  • Solutions for power quality problems
  • Methods for improving transient stability during network faults
  • Methods for minimizing power fluctuations of variable-speed wind generator systems

This accessible book helps researchers and engineers understand the relative effectiveness of each method and select a suitable tool for wind generator stabilization. It also offers students an introduction to wind energy conversion systems, providing insights into important grid integration and stability issues.

Table of Contents

Why Renewable Energy
Wind Energy
Advantages and Disadvantages of Wind-Generated Electricity
Worldwide Status of Wind Energy
Aim and Scope of the Book

Wind Energy Conversion System
Fundamental Concept
Wind Energy Technology
Basic Components of a Wind Turbine System
Types of Wind Turbines
Modeling of Wind Turbine
Chapter Summary

Electric Machines and Power Systems
DC Machines
AC Machines
Electrical Power Systems
Power Quality
Chapter Summary

Power Electronics
Power Devices
Pulse Width Modulation Scheme
Current Source Inverter
Chapter Summary

Wind Generators
Fixed-Speed Wind Energy Conversion Systems
Variable Speed Wind Energy Conversion Systems
Wind Generators
Wind Generator Characteristics
Maximum Power Point Tracking System
WG Total Efficiency Calculation
Chapter Summary

Wind Generator Grid Integration Issues
Transient Stability and Power Quality Problems
Variability of Wind Power
Power, Frequency, and Voltage Fluctuations Due to Random Wind Speed Variation
Grid Connection Requirements
Design and Operation of Power Systems
Storage Options
Grid Infrastructure
Wind Power’s Contribution to System Adequacy
Chapter Summary

Solutions for Power Quality Issues of Wind Generator Systems
Various Energy Storage Systems
Energy Storage Systems Compared
Using SMES to Minimize Fluctuations in Power, Frequency, and Voltage of Wind Generator Systems
Power Quality Improvement Using a Flywheel Energy Storage System
Constant Power Control of DFIG Wind Turbines with Supercapacitor Energy Storage
Output Power Leveling of Wind Generator Systems by Pitch Angle Control
Chapter Summary

Solutions for Transient Stability Issues of Fixed-Speed Wind Generator Systems
Model System
Pitch Control Method
Superconducting Magnetic Energy Storage Method
Static Synchronous Compensator (STATCOM) Method
Braking Resistor Method
Superconducting Fault Current Limiter Method
Stabilization Methods Compared
Chapter Summary

Fault Ride-Through Capability of Variable-Speed Wind Generator Systems
Doubly Fed Induction Generator Systems
Wound Field Synchronous Generator Systems
Permanent Magnet Synchronous Generator Systems
Switched Reluctance Generator System
Chapter Summary

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Mohd. Hasan Ali received a BScEng in electrical and electronic engineering from Rajshahi University of Engineering and Technology (RUET), Bangladesh, in 1995, and an MScEng and PhD in electrical and electronic engineering from Kitami Institute of Technology, Japan, in 2001 and 2004, respectively. Currently, he is working as an assistant professor at the electrical and computer engineering department of the University of Memphis, Tennessee. Ali’s research interests include power system dynamics, stability and control, smart-grid and micro-grid power systems, renewable energy systems, energy storage systems, electric machines and motor drives, application of power electronics to power systems, flexible alternating current transmission systems (FACTS) devices, and application of fuzzy logic control to power systems. He has authored and coauthored more than 100 publications, including journal and conference papers. Ali is a senior member of the IEEE Power and Energy Society.